Condensed Consolidated Statement of Shareholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock Including Additional Paid in Capital [Member]	Pension Plans, Defined Benefit [Member]	Accumulated Translation Adjustment [Member]	Retained Earnings [Member]
Balance at Dec. 30, 2012	$ 466,905	$ 71,819	$ (5,030)	$ (57,584)	$ 457,700
Share balance at Dec. 30, 2012	27,295,488	27,295,488
Net income	4,934				4,934
Change in employee benefit plans, net of taxes	85		85
Net foreign currency translation adjustment	5,940			5,940
Stock Options Exercised, Shares	26,875	26,875
Stock Options Exercised, Value	431	431
Stock Based Compensation Expense	539	539
Balance at Mar. 31, 2013	$ 478,834	$ 72,789	$ (4,945)	$ (51,644)	$ 462,634
Share balance at Mar. 31, 2013	27,322,363	27,322,363