Stockholders' Equity (Details) - Reconciliation of the activity in Stockholders` Equity accounts (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Stockholders' Equity (Details) - Reconciliation of the activity in Stockholders` Equity accounts [Line Items]
Balance, December 31, 2013	$ 75,641
Net loss	(4,410)	(2,094)
Stock-based compensation	223	247
Adjustment to net periodic benefit cost	35	33
Balance, March 29,2014	71,419
Common Stock [Member]
Stockholders' Equity (Details) - Reconciliation of the activity in Stockholders` Equity accounts [Line Items]
Balance, December 31, 2013	283
Net loss
Stock-based compensation
Adjustment to net periodic benefit cost
Balance, March 29,2014	283
Additional Paid-in Capital [Member]
Stockholders' Equity (Details) - Reconciliation of the activity in Stockholders` Equity accounts [Line Items]
Balance, December 31, 2013	15,732
Net loss
Stock-based compensation	223
Adjustment to net periodic benefit cost
Balance, March 29,2014	15,955
Retained Earnings [Member]
Stockholders' Equity (Details) - Reconciliation of the activity in Stockholders` Equity accounts [Line Items]
Balance, December 31, 2013	59,784
Net loss	(4,410)
Stock-based compensation
Adjustment to net periodic benefit cost
Balance, March 29,2014	55,374
Accumulated Other Comprehensive Income (Loss) [Member]
Stockholders' Equity (Details) - Reconciliation of the activity in Stockholders` Equity accounts [Line Items]
Balance, December 31, 2013	(158)
Net loss
Stock-based compensation
Adjustment to net periodic benefit cost	(35)
Balance, March 29,2014	$ (193)