Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Cash Flows From Operating Activities:
Net loss	$ (3,216)	$ (12,261)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	2,164	1,999
Adjustment to contingent consideration		(285)
Stock-based compensation expense	2,537	1,763
Changes in operating assets and liabilities, net of effects of business acquisition:
Accounts receivable	4,298	(1,147)
Inventories	2,050	(3,327)
Prepaid expenses and other assets	(850)	(809)
Accounts payable	(5,305)	(875)
Accrued compensation and other expenses	1,254	(1,698)
Deferred revenue	23	458
Restructuring accrual	(481)	732
Other long-term liabilities	(355)	(459)
Net cash provided by (used in) operating activities	2,119	(15,909)
Cash Flows From Investing Activities:
Acquisition, net of cash acquired		(625)
Purchases of property and equipment	(1,578)	(655)
Net cash used in investing activities	(1,578)	(1,280)
Cash Flows From Financing Activities:
Principal payment of note and loan payable	(136)	(904)
Proceeds from bank borrowings		2,800
Shares withheld for tax purposes	(343)
Proceeds from sale of stock to employees	742	334
Net cash provided by financing activities	263	2,230
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(28)	21
Net Increase (Decrease) in Cash and Cash Equivalents	776	(14,938)
Cash and Cash Equivalents, beginning of period	45,732	57,574
Cash and Cash Equivalents, end of period	46,508	42,636
Supplemental Disclosures of Non-Cash Investing and Financing Activities:
Common stock issued in connection with acquisition		8,132
Capital assets acquired but not paid	$ 164	$ 249

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