Note 7 - Leases (Tables)

3 Months Ended

Aug. 31, 2023

Notes Tables

Schedule of Financing Lease [Table Text Block]

	August 31, 2023			May 31, 2023
Non-cancellable financing leases	$	50,518		$	60,485
Less: Current portion		(27,689	)		(31,981	)
Non-cancellable financing leases, net of current portion	$	22,829		$	28,504

	August 31, 2023			May 31, 2023
Production equipment under financing leases	$	176,565		$	176,565
Less: Accumulated amortization		(103,146	)		(95,447	)
Production equipment under financing leases, net	$	73,419		$	81,118

Lease, Cost [Table Text Block]

	2023			2022
Lease Expense
Financing lease expense -
Amortization of right-of-use assets	$	7,699		$	218,914
Interest on lease liabilities		600			19,509
Operating lease expense		183,957			52,970
Short-term lease expense		360,353			395,810
Total	$	552,609		$	687,203
Other Information
Cash paid for amounts included in the measurement of lease liabilities for finance leases -
Operating cash flows	$	600		$	19,509
Financing cash flows	$	9,947		$	419,120
Cash paid for amounts included in the measurement of lease liabilities for operating leases -
Operating cash flows	$	177,217		$	52,970
Weighted-average remaining lease term (in years) -
Financing leases		1.6			1.1
Operating leases		13.9			14.8
Weighted-average discount rate -
Financing leases		4.3	%		7.3	%
Operating leases		6.0	%		6.0	%

Finance Lease, Liability, to be Paid, Maturity [Table Text Block]

	Financing Leases		Operating Leases
Twelve months ending August 31, 2024	$	34,374	$	546,910
Twelve months ending August 31, 2025		14,818		534,000
Twelve months ending August 31, 2026		3,009		534,000
Twelve months ending August 31, 2027		-		536,230
Twelve months ending August 31, 2028		-		560,760
Thereafter		-		5,139,910
Total future minimum lease payments		52,201		7,851,810
Present value discount		1,683		2,552,837
Present value of minimum lease payments	$	50,518	$	5,298,973