Note 7 - Property, Plant and Equipment (Tables)

3 Months Ended

Jul. 31, 2024

Notes Tables

Property, Plant and Equipment [Table Text Block]

	July 31, 2024			April 30, 2024
Land	$	4,224		$	4,224
Building and improvements		48,230			48,190
Aircraft		5,699			5,599
Machinery and equipment		7,463			7,484
Office furniture and fixtures		14,611			14,389
Leasehold improvements		4,032			4,032
		84,259			83,918
Accumulated depreciation		(25,319	)		(24,331	)
Total property, plant and equipment	$	58,940		$	59,587

Schedule of Useful Life of Property, Plant, and Equipment [Table Text Block]

Description	Estimated useful life
Building and improvements	39 years or the shorter of the estimated useful life of the asset or the underlying lease term
Aircraft	5 years
Machinery and equipment	5 years
Office furniture and fixtures	5 years
Leasehold improvements	Shorter of the estimated useful life of the asset or the underlying lease term