Accounts payable and accrued liabilities (Details) - USD ($)	Mar. 06, 2025	Feb. 28, 2025	Nov. 30, 2024
Subsequent Event [Line Items]
Trade accounts payable		$ 297,000	$ 196,000
Accrued liabilities		124,000	62,000
Accrued salaries and vacation		245,000	498,000
Accounts payable and accrued liabilities		$ 666,000	$ 756,000
Subsequent Event
Subsequent Event [Line Items]
Accrued salaries and vacation	$ 145,000

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Carrying value as of the balance sheet date of obligations incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
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-Section S99
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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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