Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating activities
Net loss	$ (1,504)	$ (3,752)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation expense	955	1,093
Change to allowance for doubtful accounts	325	16
(Gain) Loss on disposal of fixed assets	31	130
Stock-based compensation	1,131	1,149
Changes in operating assets and liabilities:
Restricted cash	3	(403)
Accounts receivable	(6,828)	(2,033)
Inventories	77	(4,301)
Prepaid expenses and other assets	(946)	(80)
Accounts payable	(104)	13
Accrued expenses	(1,502)	(1,689)
Deferred revenue	3,098	2,074
Long-term liabilities	72	232
Net cash used in operating activities	(5,192)	(7,551)
Investing activities
Sales/maturities of marketable securities	0	134
Purchases of property and equipment	(1,021)	(2,225)
Net cash used in investing activities	(1,021)	(2,091)
Financing activities
Proceeds from private placement of common stock	9,750	0
Issuance costs of private placement	(187)	0
Proceeds from draw on revolving line of credit	2,017	3,000
Payments on revolving line of credit	(2,017)	0
Proceeds from employee stock purchases	491	277
Purchases of treasury stock	(20)	(12)
Net cash provided by financing activities	10,034	3,265
Translation gain (loss) on subsidiaries in foreign currencies	(99)	416
Change in cash and cash equivalents	3,722	(5,961)
Cash and cash equivalents, beginning of period	10,357	15,416
Cash and cash equivalents, end of period	$ 14,079	$ 9,455