Shareholders' Equity - Restricted Stock Award (Details)
|3 Months Ended|
Apr. 30, 2022
|Period for recognition of unrecognized compensation cost||2 years 3 months|
Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
No definition available.