Note 7 - Leases - Summary of Liability Maturity (Details) - USD ($)	Feb. 28, 2025	May 31, 2024
2026, financing leases	$ 7,814
2026, operating leases	609,000
2027, financing leases	0
2027, operating leases	609,000
2028, financing leases	0
2028, operating leases	624,610
2029, financing leases	0
2029, operating leases	635,760
2030, financing leases	0
2030, operating leases	623,260
Thereafter, Finance Lease	0
Thereafter, Operating leases	4,298,770
Total future minimum lease payments, Finance Lease	7,814
Total future minimum lease payments, Operating leases	7,400,400
Present value discount, Finance Lease	110
Present value discount, Operating leases	2,159,142
Present value of minimum lease payments, Finance Lease	7,704
Liability under operating leases	$ 5,241,258	$ 5,453,234