Critical Accounting Policies (Details) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2013 item
Revenue Recognition
Number of classes of end user customers		2
Minimum order of licenses of end user customers defined as large		5,000
Maximum order of licenses of end user customers defined as small		5,000
Reclassifications
Reclassification of amortization on the developed technology intangible asset	$ 226,000