Consolidated statements of operations (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue:
Net revenue	$ 46,566,065	$ 43,578,016	$ 41,858,166
Cost of revenue:
Payment processing service fees	11,236,262	10,943,290	11,677,012
Processing and service costs	13,048,294	11,010,778	9,093,674
Total cost of revenue	24,284,556	21,954,068	20,770,686
Selling, general and administrative expenses	22,241,656	25,865,652	18,152,014
Total operating expenses	46,526,212	47,819,720	38,922,700
Income (loss) from operations	39,853	(4,241,704)	2,935,466
Other income (expense):
Interest expense	(66,905)	(55,987)	(319,098)
Interest income	1,038	1,236	1,582
Other income (expense), net	88,889	(8,739)	98,682
Total other income (expense), net	23,022	(63,490)	(218,834)
Income (loss) from operations before provision for income taxes	62,875	(4,305,194)	2,716,632
Provision for income taxes	(40,869)	(147,111)	(331,903)
Net income (loss)	$ 22,006	$ (4,452,305)	$ 2,384,729
Basic net income (loss) per share applicable to common stockholders (in dollars per share)	$ 0.00	$ (0.09)	$ 0.04
Diluted net income (loss) per share applicable to common stockholders (in dollars per share)	$ 0.00	$ (0.09)	$ 0.04
Weighted average common stock outstanding (basic) (in shares)	52,943,203	52,187,144	49,348,033
Weighted average common stock outstanding (diluted) (in shares)	54,465,285	52,187,144	52,167,492