Note 13 - Leases (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2022	Aug. 31, 2021
Lease, Cost, Total	$ 4,333	$ 5,547	$ 14,368	$ 17,536
Operating Lease, Weighted Average Remaining Lease Term (Month)	42 months		42 months
Operating Lease, Weighted Average Discount Rate, Percent	4.86%		4.86%
Lessee, Finance Lease, Term of Contract (Month)	52 months		52 months
Finance Lease, Weighted Average Discount Rate, Percent	4.18%		4.18%
Finance Lease, Right-of-Use Asset, Amortization	$ 40,140		$ 87,284
Iowa Economic Development’s Manufacturing 4.0 Program [Member]
Government Assistance, Amount	$ 224,513