Note 7 - Lease Commitments (Details Textual) - USD ($)
Oct. 01, 2018
Aug. 31, 2020
Lessee, Operating Lease, Renewal Term (Year) 5 years  
Lessee, Operating Lease, Rent Abatement and Tenant Allowance Period (Month) 180 days  
Operating Lease, Expense $ 21,300  
Lessee, Operating Lease, Discount Rate   5.25%