Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Net income (loss)	$ 1,539	$ (3,890)	$ (148)	$ (10,861)
Other comprehensive income (loss), net of tax:
Change in unrealized gain (loss) on investments	(50)	(29)	42	(42)
Change in minimum post retirement benefits obligation	52	2	104	4
Change in cash flow hedges	0	20	0	(40)
Other comprehensive income (loss)	2	(7)	146	(78)
Total comprehensive income (loss)	$ 1,541	$ (3,897)	$ (2)	$ (10,939)