Fair Value Measurements (Details 1) - Cash Surrender Value [Member] - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 809	$ 3,122
Unrealized gain relating to instruments held at reporting date	(11)	16
Purchases, sales, issuances and settlements, net	27	1
Balance at end of period	$ 825	$ 3,139