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Note 5 - Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2014
Payables and Accruals [Abstract] |
Schedule of Accrued Liabilities [Table Text Block] |
|  | December 31, |
|  | 201 4 |  |  | 201 3 |
Payroll, bonus, and benefits |  | $ | 54 |  |  | $ | 141 |
Legal and consulting |  |  | 902 |  |  |  | 1,300 |
Stock-based compensation |  |  | 275 |  |  |  | 71 |
Other accrued expenses |  |  | 349 |  |  |  | 226 |
|  | $ | 1,580 |  |  | $ | 1,738 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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