CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Cash received from customers	$ 48,248,000	$ 56,271,000
Cash paid to suppliers and employees	(51,243,000)	(55,898,000)
Cash from Continued Dumping and Subsidy Offset Act, net	1,103,000	5,308,000
Interest paid, net	(191,000)	(987,000)
Income tax payments	(510,000)	(105,000)
Net cash (used in) provided by operating activities	(2,593,000)	4,589,000
Cash flows from investing activities:
Proceeds from surrender of corporate-owned life insurance policies	28,139,000
Decrease in restricted cash		527,000
Proceeds from sale of assets		4,000
Purchase of other assets	(14,000)	(15,000)
Net cash provided by investing activities	28,125,000	516,000
Cash flows from financing activities:
Stock purchase and retirement for tax withholdings on vesting of restricted awards	(15,000)	(13,000)
Payments on insurance policy loans	(5,495,000)	(5,461,000)
Payment of dividends	(21,282,000)
Purchase and retirement of common stock	(1,012,000)
Net cash used by financing activities	(27,804,000)	(5,474,000)
Cash flows from discontinued operations:
Cash (used in) provided by operating activities	(13,000)	1,282,000
Net cash (used in) provided by discontinued operations	(13,000)	1,282,000
Net (decrease) increase cash	(2,285,000)	913,000
Cash at beginning of year	6,497,000	5,584,000
Cash at end of year	4,212,000	6,497,000
Reconciliation of net (loss) income to net cash (used in) provided by operating activities:
Net (loss) income	(5,258,000)	5,340,000
Loss from discontinued operations		11,000
Depreciation	181,000	185,000
Amortization	289,000	285,000
Stock-based compensation	338,000	824,000
Other, net		14,000
Changes in assets and liabilities:
Accounts receivable	3,433,000	(1,072,000)
Inventories	(2,017,000)	3,282,000
Prepaid expenses and other assets	(176,000)	(1,747,000)
Accounts payable	233,000	(542,000)
Accrued salaries, wages and benefits	(250,000)	177,000
Other accrued expenses	235,000	(1,109,000)
Other long-term liabilities	399,000	(1,059,000)
Net cash (used in) provided by operating activities	$ (2,593,000)	$ 4,589,000