Income Per Share (Reconciliation Between Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended					9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Per Share [Abstract]
Income (loss) from continuing operations before discontinued operations	$ (290)			$ 2,202		$ (2,831)	$ 5,549
Loss on disposal of discontinued operations (Note 3)						(1,116)
Loss from discontinued operations, net of income taxes (Note 3)				(299)		(597)	(870)
Net income (loss)	$ (290)	$ (5,030)	$ 775	$ 1,903	$ 757	$ (4,544)	$ 4,679
Basic - weighted shares outstanding	8,764			7,825		8,738	7,249
Weighted shares assumed upon exercise of stock awards				997			1,111
Diluted - weighted shares outstanding	8,764			8,822		8,738	8,360
Continuing operations	$ (0.03)			$ 0.28		$ (0.32)	$ 0.77
Discontinued operations				(0.04)		(0.20)	(0.12)
Net income (loss) per share:	(0.03)			0.24		(0.52)	0.65
Continuing operations	(0.03)			0.25		(0.32)	0.66
Discontinued operations				(0.03)		(0.20)	(0.10)
Net income (loss) per share:	$ (0.03)			$ 0.22		$ (0.52)	$ 0.56