Leases - Right of use asset (Details) $ in Thousands	9 Months Ended
Aug. 31, 2025 USD ($)
Leases
Right-of-use asset, Beginning balance	$ 155
Net amortization	(29)
Right-of-use asset, Ending balance	$ 126

Amount of periodic reduction over lease term of carrying amount of right-of-use asset from operating lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Name:	us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration