Share Repurchase (Narrative) (Details) $ in Millions	Jul. 31, 2019 USD ($)
Subsequent event [Member]
Share Repurchase [Line Items]
Authorized share repurchase amount	$ 3.0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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