Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Entity that Current Director Owns Minority Interest and Serves as Board of Directors Chairman
Related Party Transaction
Purchased goods and services	$ 41	$ 21	$ 38
Immediate family member of management | Services purchased from an Immediate family member of a named executive officer
Related Party Transaction
Purchased goods and services	$ 43