Stock-based expense (Tables)

9 Months Ended

Sep. 30, 2013

Stock-based expense

Summary of stock-based expense recognized by income statement classification

	Three months ended September 30,				Nine months ended September 30,
	2013		2012		2013		2012
Processing and service costs	$	65,284	$	67,811	$	173,089	$	196,812
Selling, general and administrative expenses	250,684		216,260		691,835		627,656
Total stock-based expense	$	315,968	$	284,071	$	864,924	$	824,468

Summary of stock-based expense recognized by stock based compensation program

	Three months ended September 30,				Nine months ended September 30,
	2013		2012		2013		2012
Stock options	$	228,423	$	284,071	$	739,992	$	824,468
Restricted stock awards	87,545		—		124,932		—
Total stock-based expense	$	315,968	$	284,071	$	864,924	$	824,468