Goodwill And Other Intangible Assets Expected amortization expense (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Remainder of Fiscal 2016	$ 723
2017	1,446
2018	1,334
2019	869
2020	799
Thereafter	2,508
Finite-lived intangible assets, net	7,679	$ 8,321
Existing Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Remainder of Fiscal 2016	85
2017	170
2018	128
2019	103
2020	103
Thereafter	51
Finite-lived intangible assets, net	640	159
Patents [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Remainder of Fiscal 2016	16
2017	32
2018	32
2019	32
2020	32
Thereafter	428
Finite-lived intangible assets, net	$ 572	$ 504