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Note 8 - Stock-Based Compensation (Details) (USD $)
9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Salaries, Wages, and Related Expenses [Member]
Sep. 30, 2012
Salaries, Wages, and Related Expenses [Member]
Sep. 30, 2013
Salaries, Wages, and Related Expenses [Member]
Sep. 30, 2012
Salaries, Wages, and Related Expenses [Member]
Sep. 30, 2013
General Supplies and Expenses [Member]
Sep. 30, 2012
General Supplies and Expenses [Member]
Sep. 30, 2013
Common Class A [Member]
May 29, 2013
Third Amendment [Member]
May 29, 2013
Second Amendment [Member]
Sep. 30, 2012
Single Participant [Member]
Note 8 - Stock-Based Compensation (Details) [Line Items]                        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) 1,550,000                 750,000 800,000  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares) 759,669                      
Share-based Compensation Arrangement by Share-based Payment Award, Description                       200,000
Allocated Share-based Compensation Expense     $ (100,000) $ 500,000 $ 100,000 $ 900,000 $ 100,000 $ 100,000        
Reversal of Previous Stock Compensation Expense (409,000)                      
Shares Paid for Tax Withholding for Share Based Compensation (in Shares)                 397      
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased (in Dollars per share)                 $ 5.85      
Payments Related to Tax Withholding for Share-based Compensation $ 203,000 $ 6,000