Basis of Presentation and Going Concern (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 6 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Jul. 10, 2019 |
Jul. 10, 2019 |
Jul. 02, 2019 |
Mar. 31, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
Dec. 31, 2018 |
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| Accumulated deficit | $ (73,332) | $ (61,378) | ||||||||
| Total current assets | 11,961 | 22,051 | [1] | |||||||
| Total current liabilities | 3,053 | $ 2,393 | [1] | |||||||
| Working capital | 8,900 | |||||||||
| Cash and cash equivalents and short-term investments | 11,000 | |||||||||
| Net proceeds | $ 16,100 | |||||||||
| Common Stock [Member] | ||||||||||
| Number of shares issued | (3,500,000) | |||||||||
| IPO [Member] | Subsequent Event [Member] | ||||||||||
| Number of shares issued | 6,666,667 | |||||||||
| Shares issued price per share (in dollars per share) | $ 3.00 | |||||||||
| Net proceeds | $ 19,960 | $ 18,150 | ||||||||
| Over-Allotment Option [Member] | Subsequent Event [Member] | Common Stock [Member] | ||||||||||
| Number of shares issued | 648,333 | |||||||||
| Shares issued price per share (in dollars per share) | $ 3.00 | $ 3.00 | ||||||||
| Net proceeds | $ 1,809 | |||||||||
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- Definition Amount of cash and cash equivalents and short-term investments. No definition available.
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- Definition The amount of capital of a business which is used in its day-to-day trading operations, calculated as the current assets minus the current liabilities. No definition available.
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow associated with the amount received from entity's first offering of stock to the public. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Per share or per unit amount of equity securities issued. No definition available.
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- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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