Consolidated Statement of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Items [Member]	Noncontrolling Interest [Member]	Total
Beginning balance at Jan. 02, 2010	$ 146	$ 92,244	$ 146,624	$ (46,558)	$ 252	$ 1,323	$ 194,031
Beginning balance (in shares) at Jan. 02, 2010	14,624,159			2,219,221
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income			18,507			241	18,748
Activity under stock and 401(K) plans		665		2,179			2,844
Treasury stock reissued (in shares)				(105,299)
Tax benefits related to employees' and directors' stock plans		26					26
Purchases of Company common stock				(4,407)			(4,407)
Purchases of Company common stock (in shares)				255,500
Other Comprehensive Items					(3,838)	(103)	(3,941)
Ending balance at Jan. 01, 2011	146	92,935	165,131	(48,786)	(3,586)	1,461	207,301
Ending balance (in shares) at Jan. 01, 2011	14,624,159			2,369,422
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income			33,575			274	33,849
Activity under stock and 401(K) plans		395		2,756			3,151
Treasury stock reissued (in shares)				(133,411)
Tax benefits related to employees' and directors' stock plans		371					371
Purchases of Company common stock				(16,088)			(16,088)
Purchases of Company common stock (in shares)				747,706
Dividend paid to minority shareholder						(579)	(579)
Other Comprehensive Items					(4,369)	(6)	(4,375)
Ending balance at Dec. 31, 2011	146	93,701	198,706	(62,118)	(7,955)	1,150	223,630
Ending balance (in shares) at Dec. 31, 2011	14,624,159			2,983,717
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income			31,623			198	31,821
Activity under stock and 401(K) plans		1,615		2,584			4,199
Treasury stock reissued (in shares)				(123,752)
Tax benefits related to employees' and directors' stock plans		132					132
Purchases of Company common stock				(14,491)			(14,491)
Purchases of Company common stock (in shares)				633,581
Other Comprehensive Items					4,640	36	4,676
Ending balance at Dec. 29, 2012	$ 146	$ 95,448	$ 230,329	$ (74,025)	$ (3,315)	$ 1,384	$ 249,967
Ending balance (in shares) at Dec. 29, 2012	14,624,159			3,493,546