Intangible Assets and Software Development Costs (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Amortization of developed technology			$ 7,371,000	$ 5,705,000
Finite-lived intangible assets, net	$ 96,000		96,000		$ 130,000
Amortization of Intangible Assets	471,000	$ 353,000	1,421,000	1,031,000
Capitalized Computer Software, Additions	1,600,000	3,000,000	6,500,000	8,900,000
Developed Technology Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Accumulated Amortization, Excluding Accumulated Impairment	10,055,000		10,055,000		$ 10,055,000
Developed Technology Internal [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of developed technology	2,600,000	2,300,000	7,300,000	5,700,000
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 11,500,000	$ 11,500,000	$ 34,500,000	$ 34,500,000