Condensed Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 35,673	$ 25,144
Restricted cash		371
Accounts receivable	1,684	2,794
Prepaid expenses	3,044	1,952
Inventory	718	195
Income tax receivable		935
Deferred tax assets, net	869	1,445
Current assets before funds held for clients	41,988	32,836
Funds held for clients	591,563	660,557
Total current assets	633,551	693,393
Property and equipment, net	48,692	47,919
Deposits and other assets	764	645
Goodwill	51,889	51,889
Intangible assets, net	4,693	5,096
Total assets	739,589	798,942
Current liabilities:
Accounts payable	2,527	3,042
Income tax payable	3,353
Accrued commissions and bonuses	1,568	5,080
Accrued payroll and vacation	3,160	1,582
Deferred revenue	2,662	2,535
Current portion of long-term debt	862	855
Accrued expenses and other current liabilities	7,309	5,121
Current liabilities before client funds obligation	21,441	18,215
Client funds obligation	591,563	660,557
Total current liabilities	613,004	678,772
Deferred tax liabilities, net	2,430	3,107
Long-term deferred revenue	18,114	16,802
Long-term debt, less current portion	25,652	26,123
Total long-term liabilities	46,196	46,032
Commitments and contingencies
Stockholders' equity:
Common stock, $0.01 par value (100,000,000 shares authorized, 56,563,541 and 53,832,782 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively)	566	538
Additional paid in capital	68,165	67,937
Retained earnings	11,658	5,663
Total stockholders' equity	80,389	74,138
Total liabilities and stockholders' equity	$ 739,589	$ 798,942