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Note 5 - Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | December 31, |
|  | 2020 |  |  | 2019 |
Payroll, bonus, and benefits |  | $ | 240 |  |  | $ | 628 |
Legal and consulting |  |  | 104 |  |  |  | 510 |
Stock-based compensation |  |  | 71 |  |  |  | 71 |
Well development |  |  | 113 |  |  |  | 1,038 |
Northern Pipeline quality test |  |  | - |  |  |  | 1,868 |
Other accrued expenses |  |  | 146 |  |  |  | 421 |
|  | $ | 674 |  |  | $ | 4,536 |

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- References No definition available. + Details
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