Financing Receivables (Details) (USD $)	6 Months Ended
	Sep. 30, 2014	Mar. 31, 2014
Financing Receivables [Abstract]
Minimum finance receivable deferred payment term	1 year
Financing Receivable, Recorded Investment, Past Due [Line Items]
Allowance for credit losses on financing receivables	$ 0	$ 0
Pass Rating [Member] | Software products [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
0-29 days past invoice date	761,000	2,684,000
30-90 days past invoice date	157,000	628,000
Greater than 90 days past invoice date	164,000	26,000
Unbilled	38,207,000	33,807,000
Total financing receivables	$ 39,289,000	$ 37,145,000