Common Stock and Earnings (Loss) Per Share (Earnings (Loss) Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 27, 2014		Sep. 28, 2013		Sep. 27, 2014		Sep. 28, 2013
Basic earnings (loss) per share:
Income (loss) from continuing operations	$ (166)		$ 1,432		$ 3,664		$ 3,761
Less: Allocation of earnings to participating securities	0		(57)		(182)		(149)
Income (loss) from continuing operations available to common shareholders - basic	(166)		1,375		3,482		3,612
Basic weighted-average shares outstanding (1)	15,394	[1]	12,760	[1]	14,040	[1]	12,722
Basic earnings (loss) per share - continuing operations	$ (0.01)		$ 0.11		$ 0.25		$ 0.28
Diluted earnings (loss) per share:
Income (loss) from continuing operations available to common shareholders - basic	(166)		1,375		3,482		3,612
Add: Undistributed earnings reallocated to unvested shareholders	0		1		3		1
Income (loss) from continuing operations available to common shareholders - basic	$ (166)		$ 1,376		$ 3,485		$ 3,613
Effect of dilutive securities:
Stock options (2)	0	[2]	77	[2]	111	[2]	45
Directors' stock performance units (2)	0	[2]	62	[2]	65	[2]	61
Diluted weighted-average shares outstanding (1)(2)	15,394	[1],[2]	12,899	[1],[2]	14,216	[1],[2]	12,828
Diluted earnings (loss) per share - continuing operations	$ (0.01)		$ 0.11		$ 0.25		$ 0.28
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	552		450		432		530

[1] Includes Common and Class B Common shares, in thousands.

[2] Because their effects are anti-dilutive, shares issuable under stock option plans where the exercise price is greater than the average market price of the Company's Common Stock during the relevant period and directors' stock performance units have been excluded. Aggregate shares excluded for the three and nine months ended September 27, 2014 were 552 and 432, respectively, and for the three and nine months ending September 28, 2013 were 450 and 530, respectively.