CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Cash received from customers	$ 94,951	$ 99,064	$ 103,295
Cash paid to suppliers and employees	(108,028)	(110,185)	(116,763)
Cash from Continued Dumping and Subsidy Offset Act, net		39,466	4,615
Interest paid	(2,516)	(2,218)	(2,094)
Income tax (payments) refunds	(42)	(768)	3,640
Net cash provided (used) by operating activities	(15,635)	25,359	(7,307)
Cash flows from investing activities:
Sale of short-term securities	15,000
Purchase of short-term securities		(25,000)
Increase in restricted cash		(150)	(1,587)
Capital expenditures	(2,700)	(3,820)	(4,352)
Proceeds from sale of assets		81	1,570
Purchase of other assets	(2,415)	(2,730)	(38)
Net cash (used) provided by investing activities	9,885	(31,619)	(4,407)
Cash flows from financing activities:
Capital lease payments	(132)	(132)	(121)
Purchase and retirement of common stock	(358)	(661)
Proceeds from exercise of stock options	112
Proceeds from insurance policy loans	2,416	2,283	2,003
Net cash provided (used) by financing activities	2,038	1,490	1,882
Net decrease in cash	(3,712)	(4,770)	(9,832)
Cash at beginning of year	10,930	15,700	25,532
Cash at end of year	7,218	10,930	15,700
Reconciliation of net loss to net cash used by operating activities:
Net (loss) income	(12,637)	30,384	(5,025)
Adjustments to reconcile net (loss) income to net cash used by operating activities:
Depreciation	1,886	1,753	1,614
Amortization	350	14	29
Stock-based compensation	959	779	505
Other, net	4	(62)	468
Changes in assets and liabilities:
Accounts receivable	(1,974)	224	(364)
Inventories	1,394	(3,976)	(5,389)
Prepaid expenses and other current assets	(2,793)	(2,363)	2,917
Accounts payable	(574)	(1,652)	847
Accrued salaries, wages and benefits	117	(1,044)	(205)
Other accrued expenses	(737)	374	(2,330)
Other assets	153	146	130
Other long-term liabilities	(1,783)	782	(504)
Net cash provided (used) by operating activities	(15,635)	25,359	(7,307)
Non-cash financing activities:
Capital lease			973
Asset purchases in accounts payable	$ 80	$ 255