Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
OPERATING ACTIVITIES
Net loss	$ (8,219)	$ (1,320)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	913	729
Amortization of finite-lived intangible assets	77	76
Impairment of property, plant and equipment	249	0
Gain on disposal of property, plant and equipment	(21)	0
Impairment of note receivable	11	40
Stock-based compensation	575	428
Deferred income tax provision (benefit)	3,922	(576)
Changes in operating assets and liabilities:
Decrease (increase) in accounts receivable, net	1,113	(41)
Decrease in inventories, net	720	327
Decrease (increase) in other assets	341	(402)
(Decrease) increase in trade accounts payable, accrued compensation and commissions expense and other accrued liabilities	(345)	270
Net cash used in operating activities	(664)	(469)
INVESTING ACTIVITIES
Capital expenditures	(448)	(906)
Proceeds from disposal of property, plant and equipment	28	0
Net cash used in investing activities	(420)	(906)
FINANCING ACTIVITIES
Net repayments on note payable to bank	(68)	(1,777)
Increase in restricted cash	0	(1,500)
Principal payments on long-term debt	(58)	(342)
Purchase of treasury stock	(167)	(90)
Warrant dividend issuance costs	(65)	0
Net cash used in financing activities	(358)	(3,709)
Decrease in cash and cash equivalents	(1,442)	(5,084)
Cash and cash equivalents at beginning of period	8,625	13,709
Cash and cash equivalents at end of period	7,183	8,625
Supplemental Disclosure:
Cash paid for income taxes	21	157
Cash paid for interest	$ 36	$ 95