Derivatives (Narratives) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Interest Rate Derivatives [Abstract]
Total notional amount of Company's variable interest rate swaps on debt	$ 23,700		$ 23,700
Notional amount of operating lease	4,900		4,900
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	$ (87)	$ 565	551	$ 2,265
Loss reclassified from AOCI into income (effective portion)			789	$ 3,308
Reclassify net losses on interest rate contracts from AOCI to earnings over the next twelve months			$ 200