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Note 19 - Shareholders' Equity (Details Textual) - USD ($)
shares in Thousands, $ in Thousands
1 Months Ended 12 Months Ended
Dec. 11, 2015
Dec. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Payments for Repurchase of Redeemable Preferred Stock     $ 20,000
Proceeds from Issuance of Subordinated Long-term Debt $ 10,000 $ 10,000      
Fair Market Value Percentage Under Incentive Option Plan     100.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant     248    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition     3 years    
Employee Stock Option [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Per Year     20.00%    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition     2 years    
Restricted Stock [Member]          
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition     3 years    
Restricted Stock [Member] | Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     5 years    
Subordinated Debt [Member]          
Debt Instrument, Interest Rate, Stated Percentage 6.88%        
Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Debt Instrument, Basis Spread on Variable Rate 4.00%        
Series B Preferred Stock [Member]          
Payments for Repurchase of Redeemable Preferred Stock $ 20,000        
Payments of Dividends $ 39