Organization and Summary of Significant Accounting Policies (Details Narrative) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
May 14, 2018 |
Nov. 10, 2017 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
Dec. 31, 2017 |
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| Accounting Policies [Abstract] | ||||||||
| Net loss | $ 2,312 | $ 1,703 | $ 5,710 | $ 2,215 | ||||
| Net cash used in operating activities | 5,934 | $ 3,430 | ||||||
| Accumulated deficit | $ 226,340 | $ 226,340 | $ 220,629 | |||||
| Proceeds from issuance of private placement | $ 1,400 | |||||||
| Proceeds from issuance of public offering | $ 15,000 | |||||||
| Reverse stock split | 1 for 12 reverse stock spli | |||||||
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. 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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| X | ||||||||||
- 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 cash inflow associated with the amount received from entity's raising of capital via private rather than public placement. 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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| X | ||||||||||
- Definition Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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