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Consolidated Balance Sheets (Parentheticals) - $ / shares
Dec. 31, 2015
Dec. 31, 2014
Preferred stock, par value (in Dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 1,000,000 1,000,000
Common stock, par value (in Dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 33,467,893 33,467,893
Common stock, shares outstanding 30,139,396 30,139,396
Series B Preferred Stock [Member]    
Preferred stock, per share liquidation preference (in Dollars per share) $ 1,000 $ 1,000
Preferred stock, shares issued 0 56,600
Preferred stock, shares outstanding 0 56,600
Series C Preferred Stock [Member]    
Preferred stock, per share liquidation preference (in Dollars per share) $ 1,000 $ 1,000
Preferred stock, shares issued 0 15,300
Preferred stock, shares outstanding 0 15,300