Earnings (Loss) Per Common Share (Basic and Diluted Net Income (Loss) Per Common Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net income (loss)
Income (loss) from continuing operations	$ (581)	$ (958)	$ 1,148	$ (3,182)
Income (loss) from discontinued operations, net of income taxes	1	(17)	(42)	(54)
Net income (loss)	$ (580)	$ (975)	$ 1,106	$ (3,236)
Per common share – basic
Income (loss) from continuing operations (dollars per share)	$ (0.09)	$ (0.16)	$ 0.18	$ (0.51)
Loss from discontinued operations (dollars per share)	0.00	0.00	(0.01)	(0.01)
Net income (loss) per common share – basic (dollars per share)	(0.09)	(0.16)	0.17	(0.52)
Per common share – diluted
Income (loss) from continuing operations (dollars per share)	(0.09)	(0.16)	0.18	(0.51)
Loss from discontinued operations (dollars per share)	0.00	0.00	(0.01)	(0.01)
Net income (loss) per common share – diluted (dollars per share)	$ (0.09)	$ (0.16)	$ 0.17	$ (0.52)
Weighted Average Common Shares Outstanding:
Basic (shares)	6,294	6,212	6,274	6,195
Diluted (shares)	6,294	6,212	6,465	6,195