Accumulated Other Comprehensive Income (Details) (USD $)	3 Months Ended
	Mar. 28, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	$ 10,921,000
Other comprehensive income (loss) before reclassifications	(389,000)
Amounts reclassified from accumulated other comprehensive income (loss)	20,000
Net other comprehensive income (loss)	(369,000)
Balance, end of period	10,552,000
Other comprehensive income (loss), pension and other postretirement benefit plans, tax	(300,000)	(300,000)
Accumulated Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	19,281,000
Other comprehensive income (loss) before reclassifications	(389,000)
Amounts reclassified from accumulated other comprehensive income (loss)	0
Net other comprehensive income (loss)	(389,000)
Balance, end of period	18,892,000
Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	(8,360,000)
Other comprehensive income (loss) before reclassifications	0
Amounts reclassified from accumulated other comprehensive income (loss)	20,000
Net other comprehensive income (loss)	20,000
Balance, end of period	$ (8,340,000)