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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares
Jun. 30, 2016
Dec. 31, 2015
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 0 $ 0
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares issued (in shares) 16,236,348 16,379,501
Common stock, shares outstanding (in shares) 16,236,348 16,379,501