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Note 7 - Deferred Taxes (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Deferred tax assets: |  |
Net operating losses | $ 71,215 | $ 62,719
Fixed asset basis difference | 6,457 | 6,518
Contributions carryover | 5 | 2
Deferred compensation | 2,513 | 2,659
Accrued liabilities | 315 | 41
Total deferred tax assets | 80,505 | 71,939
Valuation allowance for deferred tax assets | $ (80,505) | $ (71,939)
Net deferred tax asset |  |

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