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CONSOLIDATED BALANCE SHEETS (unaudited) (Parentheticals) - $ / shares
Jun. 30, 2015
Dec. 31, 2014
Statement Of Financial Position [Abstract]    
Preferred stock, par value (in dollars per share) $ 1.00 $ 1.00
Preferred stock, shares authorized 1,000,000 1,000,000
Preferred stock, shares outstanding    
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 70,000,000 70,000,000
Common stock, shares issued 22,871,039 22,808,761
Common stock, shares outstanding 22,871,039 22,808,761