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 income	$ 18,198	$ 3,319	$ 13,157
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,539	2,725	2,389
Deferred income tax	(2,178)	(337)	(1,276)
Stock-based compensation	1,207	750	750
Provision for losses on accounts receivable	162	52	199
Tax benefit of stock option exercise	0	(268)	0
Net foreign currency effect	(4)	81	197
Changes in operating assets and liabilities:
Accounts receivable	(285)	(146)	(2,323)
Deposits	(406)	(667)	20
Income tax receivable	5,171	(3,093)	5,797
Prepaid expenses and other current assets	87	(584)	(413)
Accounts payable	6,403	12,074	3,232
Accrued expenses	5,568	256	1,830
Deferred revenue	513	853	498
Deferred rent	45	209	(72)
Income tax payable	(285)	(369)	630
Other non-current liabilities	(35)	776	(690)
Net cash provided by operating activities	36,700	15,631	23,925
Cash flows from investing activities:
Purchases of property and equipment	(2,744)	(2,460)	(1,279)
Purchases of intangible asset	(677)	0	0
Purchases of restricted cash	(272)	0	(2,248)
Net cash used in investing activities	(3,693)	(2,460)	(3,527)
Cash flows from financing activities:
Repurchase of common stock	(11,510)	(15,123)	0
Proceeds from sale of Asia Pacific business segment, net of cash provided	0	0	1,076
Proceeds from exercise of stock options	0	40	0
Tax benefit of stock option exercise	0	268	0
Net cash provided by (used in) financing activities	(11,510)	(14,815)	1,076
Effect of exchange rate changes on cash and cash equivalents	928	(796)	(66)
Net increase (decrease) in cash and cash equivalents	22,425	(2,440)	21,408
Cash and cash equivalents at beginning of period	38,744	41,184	19,776
Cash and cash equivalents at end of period	61,169	38,744	41,184
Supplemental disclosure of cash flow information:
Cash paid for income taxes, net of refunds received	$ 4,937	$ 15,025	$ 5,857