Earnings (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Numerator:
Net earnings (loss) from continuing operations:	$ (33)	$ 1,824	$ (98)	$ (432)
Net earnings (loss) from discontinued operations:	$ (559)	$ (727)	$ (1,046)	$ (1,429)
Denominator:
Weighted-average common shares outstanding (shares)	21,969	26,497	22,202	26,446
Effect of dilutive securities from stock-based compensation plans (shares)	0	56	0	0
Weighted-average diluted common shares outstanding (shares):	21,969	26,553	22,202	26,446
Basic earnings (loss) per common share from continuing operations (in dollars per share):	$ 0.00	$ 0.07	$ 0.00	$ (0.02)
Basic earnings (loss) per common share from discontinued operations (in dollars per share):	(0.03)	(0.03)	(0.05)	(0.05)
Total basic earnings (loss) per common share (in dollars per share)	(0.03)	0.04	(0.05)	(0.07)
Diluted from continuing operations (in dollars per share)	0.00	0.07	0.00	(0.02)
Diluted from discontinued operations (in dollars per share)	(0.03)	(0.03)	(0.05)	(0.05)
Total diluted earnings (loss) per common share (in dollars per share)	$ (0.03)	$ 0.04	$ (0.05)	$ (0.07)