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v3.20.1

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

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount awarded to other party in judgment or settlement of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration