Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Condensed Consolidated Statements of Cash Flows [Abstract]
Net income	$ 678	$ 5,221
Depreciation	521	493
Amortization of finite-lived intangible assets	108	90
Gain on disposal of Lynch property	(6)	0
Stock-based compensation	202	91
Deferred income tax provision	213	0
Increase in accounts receivable	(38)	(1,887)
Increase in inventories	(167)	(1,346)
Increase in trade accounts payable, accrued liabilities and other liabilities	80	243
Decrease in other current assets	9	119
Net cash provided by operating activities	1,600	3,024
Capital expenditures	1,285	340
Net cash used in investing activities	(1,285)	(340)
Net borrowings (repayments) on note payable to bank	3,351	(1,696)
Proceeds from issuance of common stock	6,562	0
Payment of expenses related to the public offering	(158)	0
Proceeds from long-term debt	536	0
Repayments of long-term debt	(722)	(2,549)
Purchase of treasury stock	(315)	0
Net cash provided by (used in) financing activities	9,254	(4,245)
Increase (decrease) in cash and cash equivalents	9,569	(1,561)
Cash and cash equivalents at end of period	4,147	3,816
Cash and cash equivalents at end of period	13,716	2,255
Cash paid for income taxes	35	1
Cash paid for interest	52	293
Note receivable obtained in sale of property by Lynch Systems	$ 299	$ 0