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Note 5 - Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2018
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | December 31, |
|  | 201 8 |  |  | 201 7 |
Payroll, bonus, and benefits |  | $ | 1,163 |  |  | $ | 1,204 |
Legal and consulting |  |  | 405 |  |  |  | 550 |
Stock-based compensation |  |  | 71 |  |  |  | 71 |
Other accrued expenses |  |  | 431 |  |  |  | 456 |
|  | $ | 2,070 |  |  | $ | 2,281 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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