XML 34 R21.htm IDEA: XBRL DOCUMENT v3.21.1

Recent Adopted and Issued Accounting Pronouncements (Policies)	3 Months Ended
	Apr. 30, 2021
Recent Adopted and Issued Accounting Pronouncements [Abstract]
Recently Adopted Accounting Guidance	Recently Adopted Accounting Guidance ​ There was no accounting guidance adopted during the three months ended April 30, 2021.

X

- References

No definition available.

+ Details

Name:	us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.

+ References

No definition available.

+ Details

Name:	us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration