Note 4 - Property, Plant and Equipment (Tables)

3 Months Ended

Aug. 31, 2025

Notes Tables

Property, Plant and Equipment [Table Text Block]

	August 31,			May 31,
	2025			2025
Production machinery and equipment	$	72,350,582		$	71,908,843
Plant buildings and land		3,930,207			3,930,207
Leasehold improvements		2,528,312			2,370,743
Furniture and fixtures		542,057			542,057
		79,351,158			78,751,850
Less: Accumulated depreciation and amortization		(50,236,773	)		(48,706,964	)
Net Property, Plant and Equipment	$	29,114,385		$	30,044,886