Note 13 - Leases (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021	Jul. 05, 2022	Jun. 29, 2022
Lease, Cost, Total	$ 5,192	$ 5,909	$ 10,035	$ 11,989
Operating Lease, Weighted Average Remaining Lease Term (Month)	46 months		46 months
Operating Lease, Weighted Average Discount Rate, Percent	4.88%		4.88%
Lessee, Finance Lease, Term of Contract (Month)	52 months		52 months
Finance Lease, Weighted Average Discount Rate, Percent	4.24%		4.24%
Finance Lease, Right-of-Use Asset, Amortization	$ 31,002		$ 47,144
Forklift [Member] | Subsequent Event [Member]
Lessee, Finance Lease, Lease Not yet Commenced, Term of Contract (Month)						60 months
Lessee, Finance Lease, Not yet Commenced, Monthly Payment, Amount						$ 2,432
Lessee, Finance Lease, Not yet Commenced, Bargain Purchased Option, Amount						$ 14,575
Haas Milling Machine [Member] | Subsequent Event [Member]
Lessee, Finance Lease, Lease Not yet Commenced, Term of Contract (Month)					60 months
Lessee, Finance Lease, Not yet Commenced, Monthly Payment, Amount					$ 2,805
Lessee, Finance Lease, Not yet Commenced, Bargain Purchased Option, Amount					$ 16,437