Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash Flows From Operating Activities:
Net loss	$ (981)	$ (1,868)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	709	1,085
Stock-based compensation expense	668	1,142
Write-off of property and equipment	0	123
Changes in operating assets and liabilities:
Accounts receivable	2,521	(3,469)
Inventories	91	496
Prepaid expenses and other assets	(266)	(5,250)
Accounts payable	456	4,543
Accrued compensation and other expenses	(3,074)	(875)
Deferred revenue	682	(96)
Other long-term liabilities	142	(118)
Net cash (used in) provided by operating activities	948	(4,287)
Cash Flows From Investing Activities:
Purchases of property and equipment	(1,195)	(327)
Net cash used in investing activities	(1,195)	(327)
Cash Flows From Financing Activities:
Principal payment of note payable	0	(71)
Payments on bank borrowings	(2,800)	0
Proceeds from bank borrowings	2,800	0
Shares withheld for tax purposes	(114)	(401)
Proceeds from sale of stock to employees	387	448
Net cash (used in) provided by financing activities	273	(24)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(44)	(83)
Net (Decrease) Increase in Cash and Cash Equivalents	(18)	(4,721)
Cash and Cash Equivalents, beginning of period	40,315	46,168
Cash and Cash Equivalents, end of period	40,297	41,447
Supplemental Disclosures of Non-Cash Investing Activities:
Property and equipment acquired but not yet paid	489	855
Supplemental Cash Flow Data:
Cash paid for income taxes	$ 17	$ 34