Basis of Presentation and Going Concern (Details Narrative) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
Dec. 31, 2018 |
|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |||||||||
| Accumulated deficit | $ (78,527) | $ (78,527) | $ (61,378) | ||||||
| Total current assets | 27,682 | 27,682 | 22,051 | ||||||
| Total current liabilities | 3,547 | 3,547 | $ 2,393 | ||||||
| Working capital | 24,135 | 24,135 | |||||||
| Cash and cash equivalents and short-term investments | 26,374 | 26,374 | |||||||
| Net loss | $ (5,195) | $ (5,681) | $ (6,273) | $ (5,170) | $ (4,197) | $ (7,323) | $ (17,149) | $ (16,690) | |
| X | ||||||||||
- 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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| X | ||||||||||
- 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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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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| X | ||||||||||
- 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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