Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows From Operating Activities:
Net loss	$ (1,868)	$ (1,271)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	1,085	1,049
Stock-based compensation expense	1,142	803
Write-off of property and equipment	123
Changes in operating assets and liabilities, net of effects of business acquisition:
Accounts receivable	(3,469)	8,003
Inventories	496	2,190
Prepaid expenses and other assets	(5,250)	(46)
Accounts payable	4,543	(8,489)
Accrued compensation and other expenses	(1,286)	(1,022)
Deferred revenue	(96)	220
Restructuring accrual	411	(243)
Other long-term liabilities	(118)	(244)
Net cash provided by (used in) operating activities	(4,287)	950
Cash Flows From Investing Activities:
Purchases of property and equipment	(327)	(604)
Net cash used in investing activities	(327)	(604)
Cash Flows From Financing Activities:
Principal payment of note payable	(71)	(68)
Shares withheld for tax purposes	(401)	(191)
Proceeds from sale of stock to employees	448	536
Net cash provided by (used in) financing activities	(24)	277
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(83)	(46)
Net Increase (Decrease) in Cash and Cash Equivalents	(4,721)	577
Cash and Cash Equivalents, beginning of period	46,168	45,732
Cash and Cash Equivalents, end of period	41,447	46,309
Supplemental Disclosures of Non-Cash Investing Activities:
Property and equipment acquired but not yet paid	$ 855	$ 223