Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenue:
Net revenue	$ 13,103,376	$ 12,683,359	$ 26,787,889	$ 24,816,129
Cost of revenue:
Payment processing service fees	2,734,689	2,590,885	5,425,913	5,179,089
Processing and service costs	3,524,123	3,385,658	7,024,791	6,623,598
Total cost of revenue	6,258,812	5,976,543	12,450,704	11,802,687
Selling, general and administrative expenses	5,204,892	4,712,704	10,685,606	9,183,104
Restructuring charges	125,268		125,268
Total operating expenses	11,588,972	10,689,247	23,261,578	20,985,791
Income from operations	1,514,404	1,994,112	3,526,311	3,830,338
Other (expense) income:
Interest expense	(83,021)	(13,830)	(97,697)	(28,443)
Interest income	398	365	822	791
Total other expense, net	(82,623)	(13,465)	(96,875)	(27,652)
Income from operations before provision for income taxes	1,431,781	1,980,647	3,429,436	3,802,686
Provision for income taxes	(149,058)	(105,319)	(386,408)	(215,732)
Net income	$ 1,282,723	$ 1,875,328	$ 3,043,028	$ 3,586,954
Basic net income per share applicable to common stockholders ( in dollars per share)	$ 0.02	$ 0.03	$ 0.06	$ 0.06
Diluted net income per share applicable to common stockholders (in dollars per share)	$ 0.02	$ 0.03	$ 0.05	$ 0.06
Weighted-average common stock outstanding (basic) (in shares)	49,602,206	53,082,296	50,186,828	53,439,467
Weighted-average common stock outstanding (diluted) (in shares)	51,987,695	53,830,534	52,401,790	54,090,469