Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating activities
Net income	$ 386	$ 64
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	548	461
Stock-based compensation	263	263
Impairment charges		83
Provision for losses in accounts receivable	11	103
Provision for inventory write-downs	461	246
Provision for deferred income taxes	4
Noncash restructuring charges		709
Foreign currency transaction (gain) loss	220	(200)
Changes in operating assets and liabilities:
Accounts receivable	(87)	(768)
Inventory	(737)	(791)
Prepaid expenses and other assets	26	(112)
Accounts payable and other liabilities	(709)	(2,472)
Net cash provided by (used in) operating activities	386	(2,414)
Investing activities
Purchases of property and equipment	(271)	(515)
Payments related to acquisitions		(271)
Receipts related to divestitures	4	6
Purchase of technology and licenses	(45)	(19)
Net cash used in investing activities	(312)	(799)
Financing activities
Proceeds from issuance of common stock		16
Purchase of treasury stock	(602)	(376)
Net cash used in financing activities	(602)	(360)
Effect of exchange rate changes on cash and cash equivalents	18	62
Net decrease in cash and cash equivalents	(510)	(3,511)
Cash and cash equivalents at beginning of period	20,132	22,614
Cash and cash equivalents at end of period	$ 19,622	$ 19,103