Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
OPERATING ACTIVITIES
Net (loss) income	$ (1,320)	$ 382
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation	729	699
Amortization of finite-lived intangible assets	76	144
Write-down of note receivable	40	0
Gain on disposal of Lynch property	0	(6)
Stock-based compensation	428	363
Deferred income tax (benefit) provision	(576)	5
Changes in operating assets and liabilities:
(Increase) decrease in accounts receivable	(41)	1,473
Decrease in inventories, net	327	271
Increase in other assets	(402)	(115)
Increase (decrease) in trade accounts payable, accrued liabilities and other liabilities	270	(895)
Net cash provided by (used in) operating activities	(469)	2,321
INVESTING ACTIVITIES
Capital expenditures	(906)	(1,694)
Net cash used in investing activities	(906)	(1,694)
FINANCING ACTIVITIES
Net borrowings (repayments) on note payable to bank	(1,777)	3,026
Increase in restricted cash	(1,500)	0
Proceeds from issuance of common stock	0	6,562
Payment of expenses related to the public offering	0	(69)
Proceeds from long-term debt	0	548
Principal payments on long-term debt	(342)	(817)
Purchase of treasury stock	(90)	(315)
Net cash provided by (used in) financing activities	(3,709)	8,935
(Decrease) increase in cash and cash equivalents	(5,084)	9,562
Cash and cash equivalents at beginning of period	13,709	4,147
Cash and cash equivalents at end of period	8,625	13,709
Supplemental Disclosure:
Cash paid for income taxes	157	433
Cash paid for interest	95	91
Supplemental Disclosure of noncash investing activity:
Note receivable obtained in sale of property	$ 0	$ 299