Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012
Cash flows from operating activities:
Cash received from customers	$ 70,545	$ 73,503
Cash paid to suppliers and employees	(79,816)	(79,818)
Cash from Continued Dumping and Subsidy Offset Act		39,909
Interest paid, net	(2,514)	(2,246)
Income taxes paid, net	(156)	(748)
Net cash (used) provided by operating activities	(11,941)	30,600
Cash flows from investing activities:
Sale of short-term securities	15,000
Purchase of short-term securities		(20,000)
Restricted cash increase		(150)
Capital expenditures	(2,881)	(3,226)
Purchase of other assets	(2,189)	(2,007)
Proceeds from sale of assets		55
Net cash provided (used) by investing activities	9,930	(25,328)
Cash flows from financing activities:
Purchase and retirement of common stock	(358)
Proceeds from insurance policy loans	2,416	2,283
Proceeds from exercise of stock options	38
Capital lease payments	(99)	(99)
Net cash provided by financing activities	1,997	2,184
Net (decrease) increase in cash and equivalents	(14)	7,456
Cash and equivalents at beginning of period	10,930	15,700
Cash and equivalents at end of period	10,916	23,156
Reconciliation of net (loss) income to net cash (used) provided by operating activities:
Net (loss) income	(8,093)	33,392
Depreciation and amortization	1,587	1,320
Stock-based compensation	661	589
Gain on disposal of assets		(50)
Changes in assets and liabilities:
Accounts receivable	(3,671)	(1,619)
Inventories	3,394	(401)
Prepaid expenses and other current assets	(3,428)	(2,181)
Accounts payable	(1,692)	(1,502)
Accrued salaries, wages and benefits	596	475
Other accrued expenses	(342)	496
Other assets	(559)	(492)
Other long-term liabilities	(394)	573
Net cash (used) provided by operating activities	$ (11,941)	$ 30,600