Share-based Compensation and Common Stock Issuance (Details Narrative)
$ / shares in Units, $ in Thousands |
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1 Months Ended |
3 Months Ended |
12 Months Ended |
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Feb. 26, 2024
USD ($)
shares
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Dec. 31, 2023
USD ($)
$ / shares
shares
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Dec. 21, 2023
USD ($)
$ / shares
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Dec. 18, 2023
USD ($)
shares
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Nov. 02, 2023 |
Sep. 12, 2023
shares
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May 18, 2023
$ / shares
shares
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May 17, 2023
USD ($)
$ / shares
shares
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Mar. 31, 2021
USD ($)
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Dec. 31, 2016 |
Mar. 31, 2021
USD ($)
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Dec. 31, 2023
USD ($)
$ / shares
shares
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Dec. 31, 2022
USD ($)
$ / shares
shares
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Jan. 01, 2024
shares
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Jan. 01, 2023
shares
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Feb. 29, 2020
$ / shares
shares
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Grant date fair value | $ / shares |
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$ 6.96
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$ 129.30
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| Warrants and Rights Outstanding, Term |
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2 years 3 months 29 days
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2 years 3 months 29 days
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| Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period | shares |
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8,821
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0
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26
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| Common Stock, Shares, Issued | shares |
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1,547,042
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35,000
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1,547,042
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310,494
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |
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4,400,001
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4,400,001
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| Shares Issued, Price Per Share | $ / shares |
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$ 1.50
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$ 1.50
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| Common stock issued in the offering |
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$ 102
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$ 9,884
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| Reverse stock split |
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On
November 2, 2023, the Company effected a reverse stock split of its issued and outstanding common stock, par value $0.0001 per share,
at a ratio of 1-for-15.
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| Proceeds from common stock |
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121
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$ 10,252
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| Private Placement [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Share price | $ / shares |
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$ 0.125
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| Net proceeds |
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3,000
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| Proceeds from inclusive of issuance costs |
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500
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| Proceeds from exclusive of warrant issuance costs |
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$ 200
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| Reduced exercise price | $ / shares |
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$ 0.72
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| Incremental fair value |
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$ 100
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| December Two Thousand Twenty Three Public Offering [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Reduced exercise price | $ / shares |
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$ 1.875
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| December Two Thousand Twenty Three Public Offering [Member] | Convertible Note [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Exercise price | $ / shares |
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$ 1.50
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| Sale of Stock, Description of Transaction |
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(i)
54,461 shares of Common Stock, (ii) the Private Pre-Funded Warrants to purchase up to 2,612,205 shares of common stock, (iii) the Series
A Private Warrants to purchase up to 2,666,666 shares of common stock and (iv) the Series B Private Warrants to purchase up to 2,666,666
shares of common stock upon the exchange and cancellation of the $
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| Debt Instrument, Face Amount |
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$ 4,000
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| December Two Thousand Twenty Three Public Offering [Member] | H.C. Wainright & Co., LLC [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | shares |
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150,417
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| Measurement Input, Risk Free Interest Rate [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Warrants and Rights Outstanding, Measurement Input |
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3,000.0
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3,000.0
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| Measurement Input, Price Volatility [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Warrants and Rights Outstanding, Measurement Input |
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75,000
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75,000
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| Measurement Input, Expected Dividend Rate [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Warrants and Rights Outstanding, Measurement Input |
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| Services Agreement [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Exercise price | $ / shares |
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$ 150
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| Services Agreement [Member] | Warrants [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | shares |
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400
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| Exercise price | $ / shares |
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$ 849.00
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| Services Agreement [Member] | Replacement Warrants [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | shares |
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400
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| Securities Purchase Agreement [Member] | December Two Thousand Twenty Three Public Offering [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Common Stock, Shares, Issued | shares |
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520,000
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| Net proceeds |
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$ 3,900
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| Proceeds from exclusive of warrant issuance costs |
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$ 100
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| Placement Agency Agreement [Member] | December Two Thousand Twenty Three Public Offering [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Cash fee |
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400
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| Legal and other fees |
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$ 600
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| Equity Distribution Agreement [Member] | December Two Thousand Twenty Three Public Offering [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Number of common stock sold, shares | shares |
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7,942
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| Proceeds from common stock |
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$ 102
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| Proceeds from net of issuance costs |
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$ 19
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| Restricted Stock Units (RSUs) [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Weighted-average recognition period |
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6 months 29 days
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| Number of shares nonvested stock unit awards | shares |
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1,009
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1,009
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1,346
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| Weighted average grant date fair value | $ / shares |
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$ 125.42
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$ 125.42
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$ 277.57
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| Number of shares vested stock unit awards | shares |
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104
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| Number of shares cancellation stock unit awards | shares |
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233
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| Unamortization stock compensation |
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$ 22
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$ 22
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| Maximum [Member] | Equity Distribution Agreement [Member] | December Two Thousand Twenty Three Public Offering [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Aggregate of offering cost |
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$ 25,000
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| Subsequent Event [Member] | Definitive Agreement [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Common stock issued in the offering |
$ 2,700
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| Stock issued during period, shares, new issues | shares |
2,933,334
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| Subsequent Event [Member] | Definitive Agreement [Member] | December Two Thousand Twenty Three Public Offering [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Stock issued during period, shares, new issues | shares |
2,933,334
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| Common Stock [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Exercise price | $ / shares |
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$ 42.40
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| Common Stock, Shares, Issued | shares |
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276,134
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| Shares Issued, Price Per Share | $ / shares |
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$ 12.675
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| Common stock issued in the offering |
|
$ 100
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|
300
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$ 300
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| Class of warrant or right outstanding | shares |
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299,997
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| Reverse stock split |
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after the 1-to-20 reverse stock
split
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| Stock issued during period, shares, new issues | shares |
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97,042
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7,942
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146,338
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| Common Stock [Member] | Securities Purchase Agreement [Member] | December Two Thousand Twenty Three Public Offering [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Shares Issued, Price Per Share | $ / shares |
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$ 1.50
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| Common Stock [Member] | Securities Purchase Agreement [Member] | December Two Thousand Twenty Three Public Offering [Member] | Series A Common Stock Warrant [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Common Stock, Shares, Issued | shares |
|
|
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|
3,333,334
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| Common Stock [Member] | Securities Purchase Agreement [Member] | December Two Thousand Twenty Three Public Offering [Member] | Series B Common Stock Warrant [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Common Stock, Shares, Issued | shares |
|
|
|
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|
3,333,334
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| Warrant [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Share price | $ / shares |
|
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|
$ 10.80
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|
$ 5.70
|
| Warrants and Rights Outstanding, Term |
|
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|
1 year 7 months 13 days
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |
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|
241,134
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| Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Warrants and Rights Outstanding, Measurement Input |
|
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|
0.91
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| Warrant [Member] | Measurement Input, Price Volatility [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
|
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| Warrants and Rights Outstanding, Measurement Input |
|
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|
81.97
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| Warrant [Member] | Measurement Input, Expected Dividend Rate [Member] |
|
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
|
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| Warrants and Rights Outstanding, Measurement Input |
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0
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| Warrant [Member] | Securities Purchase Agreement [Member] | December Two Thousand Twenty Three Public Offering [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |
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2,813,334
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| Prefunded Warrant [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Common Stock, Shares, Issued | shares |
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5,143,205
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5,143,205
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| Shares Issued, Price Per Share | $ / shares |
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$ 12.674
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| Net proceeds |
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$ 3,100
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| Proceeds from inclusive of issuance costs |
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500
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| Proceeds from exclusive of warrant issuance costs |
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300
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| Fair value adjustment of warrants |
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|
1,900
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1,700
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$ 1,800
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| Prefunded Warrant [Member] | December Two Thousand Twenty Three Public Offering [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Exercise price | $ / shares |
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$ 0.0001
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| Beneficially owned percentage |
|
9.99%
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9.99%
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| Prefunded Warrant [Member] | December Two Thousand Twenty Three Public Offering [Member] | Series A Common Stock Warrant [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Exercise price | $ / shares |
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1.50
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| Prefunded Warrant [Member] | December Two Thousand Twenty Three Public Offering [Member] | Series B Common Stock Warrant [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Exercise price | $ / shares |
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1.50
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| Beneficially owned percentage |
|
9.99%
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9.99%
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| Prefunded Warrant [Member] | Securities Purchase Agreement [Member] | December Two Thousand Twenty Three Public Offering [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Shares Issued, Price Per Share | $ / shares |
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$ 1.4999
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| Proceeds from inclusive of issuance costs |
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1,100
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| Common Warrant [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Fair value adjustment of warrants |
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|
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$ 1,500
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| Placement Agent Warrant [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Exercise price | $ / shares |
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$ 15.845
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$ 15.845
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| Fair value adjustment of warrants |
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$ 100
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| Series A And B Common Warrant [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Fair value adjustment of warrants |
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$ 2,800
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$ 2,200
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| Pre-Funded Warrants [Member] | December Two Thousand Twenty Three Public Offering [Member] | Convertible Note [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
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| Exercise price | $ / shares |
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|
$ 0.0001
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| 2016 Equity Incentive Plan [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
|
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| Common stock available for future grant | shares |
|
6,082
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|
6,082
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18,639
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| 2016 Equity Incentive Plan [Member] | Subsequent Event [Member] | Maximum [Member] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
|
|
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| Common stock available for future grant | shares |
|
|
|
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|
|
|
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|
98,905
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| 2016 Equity Incentive Plan [Member] | Common Stock [Member] |
|
|
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
|
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| Common stock percentage |
|
|
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|
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|
|
6.00%
|
|
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| Equity Option [Member] |
|
|
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|
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|
|
|
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
| Stock based compensation for stock options |
|
$ 376
|
|
|
|
|
|
|
|
|
|
$ 376
|
|
|
|
|
| Weighted-average recognition period |
|
|
|
|
|
|
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|
|
|
|
1 year 2 months 8 days
|
|
|
|
|
| Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period | shares |
|
|
|
|
|
|
|
|
|
|
|
3,380
|
256
|
|
|
|