Earnings (Loss) Per Share - Reconciliation (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Numerator:
Income from continuing operations	$ 2,510	$ 1,193	$ 3,708	$ 1,738
Income (loss) from discontinued operations	(213)	(28)	(357)	(101)
Net income	$ 2,297	$ 1,165	$ 3,351	$ 1,637
Denominator:
Weighted average shares - basic earnings per share	3,267	3,221	3,265	3,217
Add dilutive effective of stock based compensation	105	102	110	90
Weighted average shares - diluted earnings per share	3,372	3,323	3,375	3,307
Income (loss) per share - basic:
Continuing operations (in dollars per share)	$ 0.77	$ 0.37	$ 1.14	$ 0.54
Discontinued operations (in dollars per share)	$ (0.07)	$ (0.01)	$ (0.11)	$ (0.03)
Net income per common share (in dollars per share)	$ 0.70	$ 0.36	$ 1.03	$ 0.51
Income (loss) per share - diluted:
Continuing operations (in dollars per share)	$ 0.74	$ 0.36	$ 1.10	$ 0.53
Discontinued operations (in dollars per share)	$ (0.06)	$ (0.01)	$ (0.11)	$ (0.03)
Net income per common share (in dollars per share)	$ 0.68	$ 0.35	$ 0.99	$ 0.50