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CONDENSED CONSOLIDATED BALANCE SHEETS (PARENTHETICALS) - $ / shares
Mar. 31, 2016
Dec. 31, 2015
Statement of Financial Position [Abstract]    
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares) 15,000,000 15,000,000
Preferred stock, shares issued (in shares) 2,365,243 4,029,502
Preferred stock, shares outstanding (in shares) 2,365,243 4,029,502
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 150,000,000 150,000,000
Common stock, shares issued (in shares) 20,695,870 13,915,691
Common stock, shares outstanding (in shares) 20,695,870 13,915,691