Note 6 - Leases - Summary of Liability Maturity (Details) - USD ($)	May 31, 2025	May 31, 2024
2026, financing leases	$ 4,513
2026, operating leases	609,000
2027, financing leases	0
2027, operating leases	609,000
2028, financing leases	0
2028, operating leases	631,300
2029, financing leases	0
2029, operating leases	635,760
2030, financing leases	0
2030, operating leases	604,510
Thereafter, Finance Lease	0
Thereafter, Operating leases	4,158,580
Total future minimum lease payments, Finance Lease	4,513
Total future minimum lease payments, Operating leases	7,248,150
Present value discount, Finance Lease	55
Present value discount, Operating leases	2,079,849
Present value of minimum lease payments, Finance Lease	4,457
Liability under operating leases	$ 5,168,301	$ 5,453,234