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Note 14 - Equity Compensation Plan (Tables)
 12 Months Ended
Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
    Number of
restricted  shares		   Weighted average grant
date fair value per
non-vested share
Non-vested, January 1, 2015     230,713       7.58  
Vested     115,357       7.58  
Forfeited     —       —  
Non-vested, December 31, 2015     115,356       7.58