Commitments and Contingencies (Narrative) (Details) $ in Thousands	12 Months Ended
Mar. 31, 2018 USD ($)
Commitments and Contingencies [Abstract]
Litigation settlement	$ 1,950

Amount awarded to other party in judgment or settlement of litigation.

No definition available.

Name:	us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration