Consolidated Balance Sheets - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 15,577,764	$ 13,305,816
Restricted cash	5,271,492	4,981,472
Accounts receivable, net of allowances of $0.1 million as of March 31, 2017 and December 31, 2016	6,954,633	6,060,533
Prepaid expenses and other assets	2,006,760	1,940,544
Total current assets	29,810,649	26,288,365
Other assets:
Restricted cash	612,502	550,402
Property and equipment, net	1,644,582	1,674,410
Software development costs, net	4,126,196	4,197,142
Intangible assets, net	698,685	827,474
Goodwill	280,935	276,786
Deferred tax asset	22,673,170	22,673,206
Other long-term assets	1,753,892	2,095,817
Total other assets	31,789,962	32,295,237
Total assets	61,600,611	58,583,602
Current liabilities:
Accounts payable	1,048,087	830,479
Accrued expenses	5,216,455	5,353,735
Due to merchants	5,459,868	5,199,390
Current portion of capital leases	221,608	166,966
Total current liabilities	11,946,018	11,550,570
Long-term liabilities:
Long-term debt	9,916,000	9,916,000
Other long-term liabilities	786,259	854,991
Total long-term liabilities	10,702,259	10,770,991
Total liabilities	22,648,277	22,321,561
Commitments and contingencies (Note 8)
Stockholders' equity:
Convertible preferred stock-10,000,000 shares authorized as of March 31, 2017 and December 31, 2016, $0.01 par value: Series A-1,535,398 issued and outstanding as of March 31, 2017 and 1,535,398 issued and outstanding as of December 31, 2016; $6,141,592 and $6,141,592 aggregate liquidation preference as of March 31, 2017 and December 31, 2016, respectively	15,354	15,354
Common stock-250,000,000 shares authorized as of March 31, 2017 and December 31, 2016, $0.01 par value, and 60,072,783 shares issued and 49,697,429 shares outstanding as of March 31, 2017, and 59,666,333 shares issued and 49,290,979 shares outstanding as of December 31, 2016	600,728	596,663
Treasury stock, at cost, 10,375,354 shares and 10,375,354 shares as of March 31, 2017 and December 31, 2016, respectively	(31,726,486)	(31,726,486)
Additional paid-in capital	112,565,197	111,327,321
Accumulated other comprehensive loss	(623,596)	(654,408)
Accumulated deficit	(41,878,863)	(43,296,403)
Total stockholders' equity	38,952,334	36,262,041
Total liabilities and stockholders' equity	$ 61,600,611	$ 58,583,602