Goodwill and Intangible Assets (Details Textual) $ in Thousands	12 Months Ended
	Mar. 31, 2015 USD ($)	Mar. 31, 2014 USD ($)	Mar. 31, 2013 USD ($)
Goodwill [Line Items]
Number of business operating segments	1
Amortization of intangible assets, excluding amortization of internal use software	$ 900	$ 1,200	$ 1,200
Amortization of intangible assets	3,461	6,414	3,284
Capitalized Computer Software, Additions	17,200	13,700	4,900
Developed technology [Member]
Goodwill [Line Items]
Amortization of intangible assets	$ 1,300	$ 300	$ 800