Note 13 - Equity Incentive Plan - Option Activity (Details) - $ / shares	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023
Options O/S at beginning of period, Shares (in shares)	8,000	12,000
Options O/S at beginning of period, Weighted Average Exercise Price (in dollars per share)	$ 5.43	$ 5.75
Granted, Shares (in shares)	0
Granted, Weighted Average Exercise Price (in dollars per share)	$ 0	$ 0
Exercised, Shares (in shares)	0	0
Exercised, Weighted Average Exercise Price (in dollars per share)	$ 0	$ 0
Options Expired or Forfeited, Shares (in shares)	(4,000)	(4,000)
Options Expired or Forfeited, Weighted Average Exercise Price (in dollars per share)	$ 6.15	$ 6.4
Options O/S at end of Period, Shares (in shares)	4,000	8,000
Options O/S at end of period, Weighted Average Exercise Price (in dollars per share)	$ 4.7	$ 5.43
Options Outstanding at the End of the Period, Weighted Average Remaining Contractual Term (Year)	4 months 20 days	10 months 24 days
Options Exer. At end of the Period, Shares (in shares)	4,000	8,000
Options Exer. At end of the Period, Weighted Average Exercise Price (in dollars per share)	$ 4.7	$ 5.43
Options Exer. At end of the Period, Weighted Average Remaining Contractual Term (Year)	4 months 20 days	10 months 24 days