Earnings (Loss) Per Share - Reconciliation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
Numerator:
Income from continuing operations	$ 3,184	$ 2,510	$ 5,651	$ 3,708
Income (loss) from discontinued operations	(146)	(213)	(309)	(357)
Net income	$ 3,038	$ 2,297	$ 5,342	$ 3,351
Denominator:
Weighted average shares - basic earnings per share	3,566	3,267	3,558	3,265
Add dilutive effective of stock based compensation	113	105	120	110
Weighted average shares - diluted earnings per share	3,679	3,372	3,678	3,375
Income (loss) per share - basic:
Continuing operations (in dollars per share)	$ 0.89	$ 0.77	$ 1.59	$ 1.14
Discontinued operations (in dollars per share)	(0.04)	(0.07)	(0.09)	(0.11)
Net income per common share (in dollars per share)	0.85	0.70	1.50	1.03
Income (loss) per share - diluted:
Continuing operations (in dollars per share)	0.87	0.74	1.54	1.10
Discontinued operations (in dollars per share)	(0.04)	(0.06)	(0.09)	(0.11)
Net income per common share (in dollars per share)	$ 0.83	$ 0.68	$ 1.45	$ 0.99