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Earnings (Loss) Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Numerator:    
Net loss from continuing operations $ (1,847) $ (65)
Net loss from discontinued operations $ (336) $ (487)
Denominator:    
Weighted-average common shares outstanding (shares) 21,945 22,438
Basic loss per common share from continuing operations (in usd per share) $ (0.08) $ 0.00
Basic loss per common share from discontinued operations (in usd per share) (0.02) (0.02)
Total basic loss per common share (in dollars per share) $ (0.10) $ (0.02)