Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net income (loss)	$ (8,241)	$ 14,442
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	2,185	1,856
Deferred income tax	641	(3)
Stock-based compensation	989	900
Provision for losses on accounts receivable	(44)	116
Net foreign currency effect	38	(6)
Changes in operating assets and liabilities:
Accounts receivable	(1,106)	(2,069)
Deposits	17	(382)
Income tax receivable	2,169	1,819
Prepaid expenses and other current assets	(975)	(241)
Accounts payable	(1,041)	1,189
Reserve for unexchanged promotional shares	22,000	3,000
Accrued expenses	1,039	3,198
Deferred revenue	(956)	323
Deferred rent	299	21
Income tax payable	1,292	(284)
Other non-current liabilities	359	(190)
Net cash provided by operating activities	18,665	23,689
Cash flows from investing activities:
Purchases of property and equipment	(3,596)	(2,046)
Release of restricted cash	1,786	0
Net cash used in investing activities	(1,810)	(2,046)
Cash flows from financing activities:
Net cash used in financing activities	0	(3,611)
Effect of exchange rate changes on cash and cash equivalents	(124)	858
Net increase in cash and cash equivalents	16,731	18,890
Cash and cash equivalents at beginning of period	61,169	38,744
Cash and cash equivalents at end of period	77,900	57,634
Supplemental disclosure of cash flow information:
Cash paid for income taxes, net	$ 1,917	$ 5,568