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v3.21.1

Discontinued Operations (Details) $ in Millions | Jan. 31, 2019 USD ($)
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Discontinued Operations and Disposal Groups [Abstract] |
Cash purchase price | $ 1.6

X
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Includes cash within disposal group or discontinued operation. + References No definition available. + Details
Name: | us-gaap_CashIncludingDiscontinuedOperations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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