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CONSOLIDATED BALANCE SHEETS [Parenthetical] (Unaudited) - $ / shares
Jun. 30, 2017
Dec. 31, 2016
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, non-convertible shares authorized 32,000,000 32,000,000
Common stock, shares issued 15,945,965 15,811,516
Common stock, shares outstanding 15,945,965 15,811,516