CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Net loss	$ (4,410)	$ (2,094)
Other comprehensive loss:
Amortization of prior service cost	38	41
Amortization of actuarial loss	(3)	(8)
Adjustments to net periodic benefit cost	35	33
Comprehensive loss	$ (4,445)	$ (2,127)