Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Condensed Consolidated Statements of Cash Flows [Abstract]
Net income	$ 587	$ 3,243
Depreciation	336	309
Amortization of finite-lived intangible assets	72	72
Stock-based compensation	118	30
Deferred income tax provision	213	0
Decrease (increase) in accounts receivable	592	(2,215)
Increase in inventories	(922)	(1,076)
Increase in trade accounts payable, accrued liabilities and other liabilities	717	300
Decrease in other current assets	20	145
Net cash provided by operating activities	1,733	808
Capital expenditures	(1,166)	(168)
Net cash used in investing activities	1,166	168
Net repayments on note payable to bank	0	664
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	(669)	(181)
Net cash provided by (used in) financing activities	6,271	(845)
Increase (decrease) in cash and cash equivalents	6,838	(205)
Cash and cash equivalents at beginning of period	4,147	3,816
Cash and cash equivalents at end of period	10,985	3,611
Cash paid for income taxes	35	0
Cash paid for interest	$ 31	$ 218