CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Net income (loss)	$ 1,303	$ (19,500)	$ 3,958	$ (24,126)
Other comprehensive income (loss):
Amortization of prior service cost	23	39	46	77
Amortization of actuarial loss	(28)	(20)	(58)	(38)
Adjustments to net periodic benefit cost	(5)	19	(12)	39
Comprehensive income (loss)	$ 1,308	$ (19,519)	$ 3,970	$ (24,165)