Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating activities
Net income	$ 846	$ 386
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	610	548
Stock-based compensation	277	263
Provision for losses in accounts receivable	3	11
Provision for inventory write-downs	103	461
Provision for deferred income taxes		4
Foreign currency transaction loss	53	220
Changes in operating assets and liabilities:
Accounts receivable	(446)	(87)
Inventory	(619)	(737)
Prepaid expenses and other assets	(48)	26
Accounts payable and other liabilities	(1,125)	(709)
Net cash provided by (used in) operating activities	(346)	386
Investing activities
Purchases of property and equipment	(676)	(271)
Payments related to acquisitions	(111)
Receipts related to divestitures		4
Purchase of technology and licenses	(8)	(45)
Net cash used in investing activities	(795)	(312)
Financing activities
Proceeds from issuance of common stock	170
Purchase of treasury stock	(90)	(602)
Net cash provided by (used in) financing activities	80	(602)
Effect of exchange rate changes on cash and cash equivalents	(85)	18
Net decrease in cash and cash equivalents	(1,146)	(510)
Cash and cash equivalents at beginning of period	16,448	20,132
Cash and cash equivalents at end of period	$ 15,302	$ 19,622