Note 5 - Contracts in Progress - Long-term Contracts (Details) - USD ($)	Nov. 30, 2024	Nov. 30, 2023
Costs in Excess of Billings, Cost	$ 594,420	$ 839,161
Billings in Excess of Costs, Costs	5,561,121	3,228,941
Costs in Excess of Billings, Estimated Earnings	208,112	299,230
Billings in Excess of Costs, Estimated Earnings	2,688,242	1,421,112
Costs in Excess of Billings, Costs and Estimated Earnings	802,532	1,138,391
Billings in Excess of Costs, Costs and Estimated Earnings	8,249,363	4,650,053
Costs in Excess of Billings, Amounts Billed	(589,337)	(849,109)
Billings in Excess of Costs, Amounts Billed	(10,178,514)	(5,001,342)
Costs in Excess of Billings	213,195	289,282
Billings in Excess of Costs and Profit	$ (1,929,151)	$ (351,289)