Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

v3.21.2
Stock-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Jan. 13, 2021
Feb. 06, 2020
Jun. 22, 2021
May 17, 2021
Apr. 30, 2021
Mar. 31, 2021
Feb. 17, 2021
Jan. 27, 2021
Jan. 20, 2021
Aug. 28, 2020
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2021
Sep. 30, 2020
Jul. 16, 2021
Dec. 31, 2020
Stock-Based Compensation (Details) [Line Items]                                        
Accrued expenses                                       $ 56
Weighted average grant date fair value (in Dollars per share)                                 $ 1.08      
Granted (in Shares)                                 426,000      
Share price (in Dollars per share)       $ 1.06                                
Share based compensation expense related to stock option                     $ 536     $ 619     $ 1,885 $ 1,798    
Aggregate offering price           $ 25,000                            
Pursuant share of common stock (in Shares)         1,340,870                              
Net cash proceeds         $ 1,826                              
Issuance costs         $ 74                              
Aggregate share of common stock (in Shares)       50,000                                
Expense related to consulting agreement                     $ 0 $ 53         $ 53      
Number of warrants purchased (in Shares)                     8,733,625           8,733,625      
Exercise price (in Dollars per share)                                 $ 1.3      
Exercise price (in Dollars per share)                     $ 3           $ 3     $ 1.86
Risk-free interest rate                                 0.73% 1.00%    
Expected life in years                                 5 years 8 months 12 days 5 years 8 months 12 days    
Expected stock volatility percentage                                 106.64% 82.04%    
Expected dividend yields percentage                                    
Services agreement, description   The Company recorded $28 and $47 as general and administrative expense in the accompanying condensed consolidated statement of comprehensive loss in relation to the consulting agreement for the three and nine months ended September 30, 2020, respectively. The Company recorded $0 and $9 as general and administrative expense in the accompanying condensed consolidated statement of comprehensive loss in relation to the consulting agreement for the three and nine months ended September 30, 2021, respectively.             The fair value of the warrants were valued on the date of grant at $355 using the Black-Scholes option-pricing model with the following parameters: (1) risk-free interest rate of 0.19%; (2) expected life in years of 3.0; (3) expected stock volatility of 100.99%; and (4) expected dividend yield of 0%. The Company recorded $89 and $237 as general and administrative expense in the accompanying consolidated statement of comprehensive loss in relation to the consulting agreement for the three and nine months ended September 30, 2021, respectively.                      
Securities purchase agreement, description                   the Company entered into a securities purchase agreement (the “Securities Purchase Agreement”) under which it sold and issued to an institutional investor (the “Holder”), in a registered direct offering, an aggregate of 3,200,000 shares of the Company’s common stock par value $0.0001 per share (the “Common Stock”), and pre-funded warrants to purchase an aggregate of 5,533,625 shares of Common Stock (the “Pre-Funded Warrants”) at an exercise price of $0.001 per share. During the three and nine months ended September 30, 2021, the Pre-Funded Warrants for 5,533,625 shares of common stock were exercised which resulted in aggregate proceeds of $0 and $6.                    
Warrants outstanding (in Shares)                     9,321,770           9,321,770     17,058,051
Due to exercise units (in Shares)               733,625                        
Private placement warrants shares (in Shares)                                     190,949  
Cash paid payment per share (in Dollars per share)               $ 0.1                        
Number warrant issued (in Shares)               600,000                        
Received gross proceeds before expenses               $ 11,000                        
Outstanding private placement warrants (in Shares)               8,000,000                        
Exercisable and expire term               5 years                        
Fair alue adjustment of warrants, shares (in Shares)                         6,000,000              
Fair value warrants amount                         $ 6,745              
Expected dividend yields                         0.00%              
Deemed dividend                         $ 6,145              
Cash fees                         $ 300              
Loan agreement description                                 Company issued to the Lender a Warrant, dated July 16, 2021, to purchase up to 190,949 shares of the Company’s common stock. The Warrant is immediately exercisable at an exercise price of $1.0474 per share, payable in cash or on a cashless basis according to the formula set forth in the Warrant. The exercise price of the Warrant and the number of shares issuable upon exercise of the Warrant are subject to adjustments for stock splits, combinations, stock dividends or similar events. The Warrant is exercisable until the date that is ten years after the date of issuance. The fair value of the warrant was valued on the date of grant at $168 using the Black-Scholes option-pricing model with the following parameters: (1) risk-free interest rate of 1.31%; (2) expected life in years of 10; (3) expected stock volatility of 108.87%; and (4) expected dividend yield of 0%.      
Fair value of warrant                                 $ 165      
Warrants exercisable (in Shares)                                 9,208,448      
Description of incentive plan                                 On January 1, 2021, pursuant to an annual evergreen provision, the number of shares of common stock reserved for future grants was increased by 1,936,669 shares. Under the 2016 Plan, effective as of January 1, 2021, the maximum number of shares of the Company’s common stock authorized for issuance is 7,592,663. As of September 30, 2021, there were 226,103 shares of common stock available for future grant under the 2016 Plan.      
Unamortized share-based compensation for stock options                                 $ 1,799      
Weighted-average recognition period                                 1 year 10 days      
Outstanding options to purchase,shares of common stock were exercisable (in Shares)                     3,855,603           3,855,603      
Weighted-average exercise price per share (in Dollars per share)                     $ 3.83           $ 3.83      
Restricted stock unit (in Shares)             160,000                          
Restricted stock units (in Shares)             266,000                          
Restricted stock awards vested (in Shares)                     89,332                  
Restricted Stock Units (RSUs) [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Unamortized share-based compensation for stock options                                 $ 970      
Weighted-average recognition period                                 10 months 24 days      
Restricted stock units (in Shares)                                 927,266      
Restricted stock unit awards granted             $ 758                          
General and administrative expense                     $ 223           $ 646      
Private Placement [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Private placement warrants shares (in Shares)               8,000,000                        
Private Placement [Member] | Exercise Agreement [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Warrants outstanding (in Shares)               8,000,000                        
Executives and Employees [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Number of shares issued (in Shares) 52,317                                      
Director [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Number of shares issued (in Shares)     18,209                                  
Granted (in Shares)             121,237                          
Share price (in Dollars per share)     $ 1.04       $ 1.78                          
Cash compensation for service     $ 19       $ 216                          
Prepaid compensation amount                                 61      
Share based compensation expense related to stock option                     $ 60           $ 174      
Minimum [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Expected life in years                         4 years 11 months 12 days              
Risk free interest rates minimum                         0.41%              
Expected stock volatilities percentage minimum                         103.00%              
Maximum [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Risk free interest rates maximum                         0.57%              
Expected stock volatilities percentage maximum                         103.23%              
Common Stock [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Exercised, shares (in Shares)                         14,267,250              
Percentage of number of shares                     6.00%           6.00%      
Restricted stock unit (in Shares)                       53,081 65,915 30,916 30,916 15,070        
Common Stock [Member] | Services Agreement [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Number of warrants purchased (in Shares)   120,000                                    
Warrant term   3 years                                    
Warrant [Member] | Services Agreement [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Granted (in Shares)   60,000                                    
Number of warrants purchased (in Shares)                 340,020                      
Warrant term                 3 years                      
Exercise price (in Dollars per share)   $ 2.16                                    
Remaining warrants granted (in Shares)   60,000                                    
Exercise price (in Dollars per share)   $ 3.5             $ 1.75                      
Fair value of warrants share   $ 112                                    
Risk-free interest rate   1.43%                                    
Expected life in years   3 years                                    
Expected stock volatility percentage   74.82%                                    
Expected dividend yields percentage   0.00%                                    
New Warrants [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Gross proceeds before expenses (in Shares)               6,000,000                        
Exercised, shares (in Shares)                         8,000,000              
Cash excercise                                 $ 200      
New Warrants [Member] | Private Placement [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Exercise price (in Dollars per share)               $ 2.12                        
Warrants outstanding (in Shares)               6,000,000                        
Purchase warrant per share (in Dollars per share)               $ 0.75                        
New Warrants [Member] | Private Placement [Member] | Exercise Agreement [Member]                                        
Stock-Based Compensation (Details) [Line Items]                                        
Warrants outstanding (in Shares)               8,000,000