STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Proceeds from issuance of common stock and warrants, offering cost | $ 4,090 | $ 0 |
| NSC Note [Member] | ||
| Debt Instrument, Unamortized Discount | $ 129 | $ 0 |
| X | ||||||||||
- Definition Amount, after accumulated amortization, of debt discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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