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Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 288 $ 295
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 40,000,000 40,000,000
Common stock, shares issued (in shares) 12,753,000 13,462,000
Common stock, shares outstanding (in shares) 12,753,000 13,462,000