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Discontinued Operations (Details) $ in Millions	Jan. 31, 2019 USD ($)
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