Note E - Leases (Details Textual) - USD ($)	1 Months Ended	3 Months Ended	9 Months Ended
	Oct. 31, 2019	Jun. 30, 2022	Dec. 31, 2022
Finance Lease, Liability, Payment, Due, Total			$ 190,561
Operating Lease, Weighted Average Remaining Lease Term (Year)			19 years 7 months 6 days
Finance Lease, Weighted Average Remaining Lease Term (Year)			1 year 8 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent			2.70%
Finance Lease, Weighted Average Discount Rate, Percent			1.90%
Heavy-duty Forklift [Member]
Lessee, Finance Lease, Term of Contract (Year)	5 years
Finance Lease, Liability, Payment, Due, Total	$ 518,616
Finance Lease, Monthly Payment	$ 9,074
Granite City, IL Facility [Member]
Lessee, Operating Lease, Renewal Term (Year)			20 years
Operating Lease, Quarterly Payments			$ 18,832
Granite City, IL Facility [Member] | Plateplus Inc. [Member]
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability		$ 1,237,097
Office Space in Longview, Texas [Member]
Operating Lease, Monthly Payments			$ 4,878