Note 15 - Supplemental Cash Flow Information - Supplemental Cash Flow Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2025	Aug. 31, 2024
Interest and dividends received	$ 1,956	$ 365	$ 3,871	$ 3,445
Income taxes paid	$ 0	$ 437	$ 223	$ 537

Amount, before refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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