Consolidated Balance Sheets - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 9,802,497	$ 13,305,816
Restricted cash	4,350,588	4,981,472
Accounts receivable, net of allowances of $0.1 million as of September 30, 2017 and December 31, 2016	7,915,203	6,060,533
Prepaid expenses and other assets	2,048,902	1,940,544
Total current assets	24,117,190	26,288,365
Other assets:
Restricted cash	550,580	550,402
Property and equipment, net	1,652,484	1,674,410
Software development costs, net	4,190,599	4,197,142
Intangible assets, net	605,657	827,474
Goodwill	310,736	276,786
Deferred tax asset	22,343,511	22,673,206
Other long-term assets	1,452,404	2,095,817
Total other assets	31,105,971	32,295,237
Total assets	55,223,161	58,583,602
Current liabilities:
Accounts payable	1,064,240	830,479
Accrued expenses	3,360,875	5,353,735
Due to merchants	4,526,072	5,199,390
Current portion of capital leases	188,971	166,966
Total current liabilities	9,140,158	11,550,570
Long-term liabilities:
Long-term debt		9,916,000
Other long-term liabilities	324,998	854,991
Total long-term liabilities	324,998	10,770,991
Total liabilities	9,465,156	22,321,561
Commitments and contingencies (Note 8)
Stockholders' equity:
Convertible preferred stock-10,000,000 shares authorized as of September 30, 2017 and December 31, 2016, $0.01 par value: Series A-1,535,398 issued and outstanding as of September 30, 2017 and December 31, 2016; $6,141,592 aggregate liquidation preference as of September 30, 2017 and December 31, 2016	15,354	15,354
Common stock-250,000,000 shares authorized as of September 30, 2017 and December 31, 2016, $0.01 par value, and 60,232,922 shares issued and 49,857,568 shares outstanding as of September 30, 2017, and 59,666,333 shares issued and 49,290,979 shares outstanding as of December 31, 2016	603,468	596,663
Treasury stock, at cost, 10,375,354 shares as of September 30, 2017 and December 31, 2016	(31,726,486)	(31,726,486)
Additional paid-in capital	113,565,756	111,327,321
Accumulated other comprehensive loss	(485,852)	(654,408)
Accumulated deficit	(36,214,235)	(43,296,403)
Total stockholders' equity	45,758,005	36,262,041
Total liabilities and stockholders' equity	$ 55,223,161	$ 58,583,602