CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net loss	$ (20,459)	$ (21,101)	$ (13,423)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	2,368	1,846	1,975
Amortization of intangible assets	5,763	6,272	4,431
Stock-based compensation	5,822	3,110	1,568
Change in fair value of Blammo earnout	167	(61)	0
Interest expense on debt	0	4	413
Amortization of loan agreement costs	0	70	188
Non-cash foreign currency remeasurement (gain)/loss	365	(789)	699
Impairment of goodwill	3,613	0	0
Impairment of prepaid royalties and guarantees	0	531	663
Changes in allowance for doubtful accounts	281	296	(42)
Changes in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable	2,430	(64)	5,237
Prepaid royalties	483	1,458	3,696
Prepaid expenses and other assets	(842)	168	(414)
Accounts payable	(586)	602	1,139
Other accrued liabilities	(459)	(177)	(1,223)
Accrued compensation	(1,300)	978	1,839
Accrued royalties	(1,133)	(3,402)	(5,278)
Deferred revenues	680	8,103	231
Accrued restructuring charge	(883)	(1,575)	1,055
Other long-term liabilities	(3,059)	(2,996)	(505)
Net cash (used in)/provided by operating activities	(6,749)	(6,727)	2,249
Cash flows from investing activities:
Purchase of property and equipment	(2,014)	(2,708)	(710)
Purchase of intangible assets	(5,000)	0	0
Net cash received from acquisitions	913	10,342	0
Net cash (used in)/provided by investing activities	(6,101)	7,634	(710)
Cash flows from financing activities:
Proceeds from line of credit	0	0	37,356
Payments on line of credit	0	(2,288)	(39,729)
MIG loan payments	0	(698)	(10,302)
Proceeds from public offering, net	0	15,661	0
Proceeds from private placement, net	0	0	13,218
Proceeds from exercise of stock options and ESPP	2,586	1,993	598
Proceeds from exercise of stock warrants and issuance of common stock	619	3,711	0
Net cash provided by financing activities	3,205	18,379	1,141
Effect of exchange rate changes on cash	(242)	63	(327)
Net increase/(decrease) in cash and cash equivalents	(9,887)	19,349	2,353
Cash and cash equivalents at beginning of period	32,212	12,863	10,510
Cash and cash equivalents at end of period	22,325	32,212	12,863
Supplemental disclosures of cash flow information
Common stock issued for acquisitions	2,796	33,158	0
Interest paid	0	0	1,349
Income taxes paid	$ 394	$ 1,453	$ 507