Cost of Revenue (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Cost of revenue [Abstract]
Software service costs	$ 62,500	$ 78,800	$ 135,500	$ 188,900
Software service costs, changes	(16,300)		(53,400)
Software service costs, changes (in hundredths)	(20.70%)		(28.30%)
Software product costs	69,900	51,700	135,400	89,100
Software product costs, changes	18,200		46,300
Software product costs, changes (in hundredths)	35.20%		52.00%
Cost of revenue	132,400	130,500	270,900	278,000
Cost of revenue, changes	$ 1,900		$ (7,100)
Cost of revenue changes, in (hundredths)	1.50%		(2.60%)