Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating activities:
Net income	$ 1,125	$ 192
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of debt discount	136	191
Amortization of leasehold interest	(24)	(24)
Depreciation and amortization	2,489	1,875
Increase (decrease) in deferred rent liability	(15)	43
Amortization of marketing agreement intangible assets	55	32
Allowance for doubtful accounts	23
Deferred income taxes	111	6
Stock based compensation	3,099	1,624
Foreign exchange adjustment	(138)
Decrease in fair value of contingent consideration	(517)
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	452	190
Prepaid expenses and other assets	(198)
Other assets	35	10
Accounts payable	1,529	928
Accrued expenses	(2,052)	(1,112)
Deferred revenue	(268)	(426)
Net cash provided by operating activities	5,842	3,529
Investing activities:
Purchases of computers, furniture and equipment	(273)	(426)
Cash paid in connection with acquisitions, net of cash received	(8,789)	(8,577)
Net cash used in investing activities	(9,062)	(9,003)
Financing activities:
Repayment of debt	(307)	(1,544)
Proceeds from repayment of notes receivable		70
Repurchase of common stock	(3,235)
Proceeds from exercise of stock options and stock warrants	306	1,396
Net cash used in financing activities	(3,236)	(78)
Effect of exchange rate on cash	(201)	11
Net decrease in cash and cash equivalents	(6,657)	(5,541)
Cash and cash equivalents, beginning of period	50,211	43,407
Cash and cash equivalents, end of period	$ 43,554	$ 37,866