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