Earnings (Loss) Per Share (Earnings (Loss) Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 24, 2016	Sep. 26, 2015	Sep. 24, 2016	Sep. 26, 2015
Basic earnings (loss) per share:
Income (loss) from continuing operations		$ 573	$ 84	$ (2,569)	$ (1,780)
Less: Allocation of earnings to participating securities		(17)	(2)	0	0
Income (loss) from continuing operations available to common shareholders - basic		$ 556	$ 82	$ (2,569)	$ (1,780)
Basic weighted-average shares outstanding (1)	[1]	15,648	15,573	15,631	15,518
Basic earnings (loss) per share - continuing operations		$ 0.04	$ 0.01	$ (0.16)	$ (0.11)
Diluted earnings (loss) per share:
Income (loss) from continuing operations available to common shareholders - basic		$ 556	$ 82	$ (2,569)	$ (1,780)
Add: Undistributed earnings reallocated to unvested shareholders		0	0	0	0
Income (loss) from continuing operations available to common shareholders - basic		$ 556	$ 82	$ (2,569)	$ (1,780)
Effect of dilutive securities:
Stock options (2)	[2]	0	37	0	0
Directors' stock performance units (2)	[2]	96	56	0	0
Diluted weighted-average shares outstanding (1)(2)	[1],[2]	15,744	15,666	15,631	15,518
Diluted earnings (loss) per share - continuing operations		$ 0.04	$ 0.01	$ (0.16)	$ (0.11)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		104	220	220	308

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

[2] 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 to the extent they are anti-dilutive. Aggregate shares excluded for the three and nine months ended September 24, 2016 were 104 and 220, respectively, and for the three and nine months ended September 26, 2015 were 220 and 308, respectively.