Consolidated Statements of Cash Flow (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Cash flows from operating activities:
Cash received from customers	$ 23,960	$ 26,097
Cash paid to suppliers and employees	(30,909)	(29,234)
Interest received, net	18	3
Income taxes paid, net	(96)	(68)
Net cash used by operating activities	(7,027)	(3,202)
Cash flows from investing activities:
Sale of short-term securities	5,000
Capital expenditures	(1,151)	(1,835)
Purchase of other assets	(761)	(401)
Net cash provided (used) by investing activities	3,088	(2,236)
Cash flows from financing activities:
Purchase and retirement of common stock	(353)
Capital lease payments	(33)	(33)
Net cash used by financing activities	(386)	(33)
Net decrease in cash	(4,325)	(5,471)
Cash at beginning of period	10,930	15,700
Cash at end of period	6,605	10,229
Reconciliation of net loss to net cash used by operating activities:
Net loss	(2,094)	(1,563)
Depreciation and amortization	448	415
Stock-based compensation	247	187
Accounts receivable	(2,043)	(633)
Inventories	(287)	(648)
Prepaid expenses and other current assets	(88)	235
Accounts payable	(2,962)	(778)
Accrued salaries, wages and benefits	(721)	(951)
Other accrued expenses	(79)	19
Other assets	649	599
Other long-term liabilities	(97)	(84)
Net cash used by operating activities	$ (7,027)	$ (3,202)