Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (3,222)	$ (21,387)
Adjustments to reconcile net loss to net cash used by operating activities:
Stock-based compensation	1,916	2,468
Depreciation and amortization	4,919	5,790
Non cash revenue from warrants	(431)	(348)
Allowance for doubtful accounts	(745)	1,034
Deferred income taxes	(15)	15,387
Loss on disposal of property and equipment	32	2
Loss on marketable securities		1
Increase (decrease) in cash from changes in assets and liabilities:
Accounts receivable	6,127	5,992
Inventories	(174)	(355)
Prepaid and other expenses	1,301	(41)
Prepaid and receivable income taxes	38	1,231
Other assets	(64)	599
Accounts payable	(2,345)	(2,525)
Accrued and other liabilities	(1,794)	4,107
Deferred revenue, net of deferred cost of goods sold	(4,281)	(4,003)
Net cash provided by operating activities	1,262	7,952
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in property and equipment	(2,079)	(2,980)
Purchase of marketable securities		(193)
Proceeds from the sale of marketable securities		1,223
Other	12
Restricted cash	175	303
Net cash used by investing activities	(1,892)	(1,647)
CASH FLOWS FROM FINANCING ACTIVITIES:
Exercise of stock options	44
Repayment of debt	(2,050)	(6,322)
Proceeds from debt	3,173	719
Payment of tax withholding obligations related to stock	(122)	(161)
Net cash provided (used) by financing activities	1,045	(5,764)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(530)	482
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(115)	1,023
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	51,789	36,490
CASH AND CASH EQUIVALENTS, END OF PERIOD	$ 51,674	$ 37,513