Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 77,900	$ 61,169
Accounts receivable, less allowance for doubtful accounts of $416 and $498 as of September 30, 2013 and December 31, 2012, respectively	14,818	13,626
Income tax receivable	4,504	6,682
Deposits	501	389
Prepaid expenses and other current assets	3,483	2,260
Deferred tax assets	2,007	2,194
Total current assets	103,213	86,320
Deposits, less current portion	979	1,107
Deferred tax assets, less current portion	1,229	1,710
Restricted cash	1,618	3,396
Property and equipment, net	6,376	4,314
Intangible assets, net	540	986
Total assets	113,955	97,833
Current liabilities:
Accounts payable	27,676	28,695
Reserve for unexchanged promotional shares	25,000	3,000
Accrued expenses	10,043	8,993
Deferred revenue	1,740	2,698
Income tax payable	1,353	0
Deferred rent	306	280
Total current liabilities	66,118	43,666
Long-term tax liabilities	10,388	10,030
Deferred rent, less current portion	1,423	798
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value per share (5,000 shares authorized; none issued)	0	0
Common stock, $0.01 par value (40,000 shares authorized; 15,801 shares issued and 15,362 shares outstanding as of September 30, 2013 and December 31, 2012)	163	163
Treasury stock (at cost, 438 shares at September 30, 2013 and December 31, 2012)	(7,898)	(7,898)
Additional paid-in capital	9,851	8,863
Retained earnings	34,707	42,948
Accumulated other comprehensive loss	(797)	(737)
Total stockholders' equity	36,026	43,339
Total liabilities and stockholders' equity	$ 113,955	$ 97,833