Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:
Net income (loss)	$ 2,145	$ 18	$ 2,242
Depreciation and amortization	2,052	2,298	2,565
Deferred tax expense (benefit)	1,056	(10)	1,291
Stock-based compensation	414	336	313
Unrealized (gain)/loss on foreign currency translation	10	(12)	126
Accounts receivable	929	356	292
Inventories	(850)	(699)	3,103
Other current assets	(93)	(44)	40
Accounts payable	(164)	(10)	268
Accrued liabilities	(259)	(40)	(55)
Income taxes payable		(38)	38
Deferred revenue and other liabilities	(352)	(214)	(1,608)
Net cash provided by (used in) operating activities	4,888	1,941	8,615
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(1,084)	(620)	(276)
Net cash provided by (used in) investing activities	(1,084)	(620)	(276)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	124	75	53
Proceeds from (repayments of) line of credit borrowings, net	(3,079)	(1,123)	(6,841)
Proceeds from (repayments of) debt, net		(381)	(770)
Net cash provided by (used in) financing activities	(2,955)	(1,429)	(7,558)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	(9)	200	(86)
INCREASE IN CASH AND CASH EQUIVALENTS	840	92	695
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	5,492	5,400	4,705
CASH AND CASH EQUIVALENTS, END OF PERIOD	6,332	5,492	5,400
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest	28	162	409
Cash paid for income taxes	214	107	87
Non-cash transfer of inventory to property and equipment	$ 351	$ 815	$ 128