Shareholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 27, 2013	Sep. 28, 2012	Jun. 30, 2012	Mar. 29, 2013	Jul. 27, 2012	Feb. 01, 2008
Stockholders Equity [Line Items]
Balance, beginning of period	$ 143,562	$ 136,509		$ 136,509
Net income	1,364	1,266
Translation adjustments	1,880	1,264
Benefit plan adjustments, net of tax	450	668
Cash dividends	(1,501)	(1,230)
Compensation expense and windfall tax benefits	753	1,883
Shares (acquired) issued, net	(2,125)	(1,570)
Balance, end of period	144,383	138,790
Common Stock [Member]
Stockholders Equity [Line Items]
Number of shares authorize to repurchase (in shares)					375,000	500,000
Stock repurchased during period (in shares)			125,000	185,000
Balance, beginning of period	13,183	12,759		12,759
Compensation expense and windfall tax benefits	753	1,883
Shares (acquired) issued, net	(2,777)	(2,713)
Balance, end of period	11,159	11,929	12,759
Retained Earnings [Member]
Stockholders Equity [Line Items]
Balance, beginning of period	184,110	184,306		184,306
Net income	1,277	1,231
Cash dividends	(1,015)	(1,026)
Balance, end of period	184,372	184,511
Accumulated Other Comprehensive Income (Loss) [Member]
Stockholders Equity [Line Items]
Balance, beginning of period	(25,899)	(34,797)		(34,797)
Translation adjustments	1,926	1,226
Benefit plan adjustments, net of tax	450	668
Balance, end of period	(23,523)	(32,903)
Treasury Stock [Member]
Stockholders Equity [Line Items]
Balance, beginning of period	(28,890)	(26,781)		(26,781)
Shares (acquired) issued, net	652	1,143
Balance, end of period	(28,238)	(25,638)
Non-Controlling Interest [Member]
Stockholders Equity [Line Items]
Balance, beginning of period	1,058	1,022		1,022
Net income	87	35
Translation adjustments	(46)	38
Cash dividends	(486)	(204)
Balance, end of period	$ 613	$ 891