Note 7 - Income Taxes (Details) - Deferred Taxes (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Deferred Taxes [Abstract]        
Net operating losses $ 56,294 $ 50,502    
Fixed asset basis difference 6,559 7,141    
Contributions carryover 2 2    
Deferred compensation 2,354 2,367    
Accrued liabilities 63 29    
Total deferred tax assets 65,272 60,041    
Valuation allowance for deferred tax assets (65,272) (60,041) (54,788) (50,312)
Net deferred tax asset $ 0 $ 0