Note 8 - Other Liabilities - Current and Long Term Liabilities (Details) - USD ($) $ in Thousands	Feb. 28, 2022	Nov. 30, 2021
Other current liabilities:
Remediation liabilities, current	$ 840	$ 840
Lease obligations, current	191	224
Other Liabilities, Current, Total	1,031	1,064
Other long-term liabilities:
Remediation liabilities, noncurrent	280	280
Lease obligations, noncurrent	164	184
Other Liabilities, Noncurrent, Total	$ 444	$ 464

Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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