Intangible Assets Schedule Of Intangibles (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Mar. 31, 2018
Gross Carrying Amount	$ 34,569	$ 31,681
Accumulated Amortization	(22,407)	(19,723)
Net Carrying Amount	12,162	11,958
Technology
Gross Carrying Amount	22,902	19,702
Accumulated Amortization	(12,755)	(10,535)
Net Carrying Amount	10,147	9,167
Customer relationships
Gross Carrying Amount	9,464	9,776
Accumulated Amortization	(7,639)	(7,366)
Net Carrying Amount	1,825	2,410
Trade names/domains
Gross Carrying Amount	2,108	2,108
Accumulated Amortization	(1,918)	(1,727)
Net Carrying Amount	190	381
In-process research and development
Gross Carrying Amount	95	95
Accumulated Amortization	(95)	(95)
Net Carrying Amount	$ 0	$ 0