Note 7 - Leases - Summary of Liability Maturity (Details) - USD ($)	Aug. 31, 2025	May 31, 2025
2026, financing leases	$ 3,009
2026, operating leases	609,000
2027, financing leases	0
2027, operating leases	611,230
2028, financing leases	0
2028, operating leases	635,760
2029, financing leases	0
2029, operating leases	635,760
2030, financing leases	0
2030, operating leases	585,760
Thereafter, Finance Lease	0
Thereafter, Operating leases	4,018,390
Total future minimum lease payments, Finance Lease	3,009
Total future minimum lease payments, Operating leases	7,095,900
Present value discount, Finance Lease	27
Present value discount, Operating leases	2,001,735
Present value of minimum lease payments, Finance Lease	2,982
Liability under operating leases	$ 5,094,165	$ 5,168,301