Property, Plant and Equipment (Tables)

9 Months Ended

Jan. 31, 2022

Property, Plant and Equipment [Abstract]

Components Of Property, Plant And Equipment

The components of property, plant and equipment were:

	January 31,		April 30,
(in thousands)	2022		2021
Land	$	4,431	$	4,431
Buildings and improvements	118,848		116,103
Buildings and improvements - finance leases	11,636		11,636
Machinery and equipment	325,219		315,371
Machinery and equipment - finance leases	31,094		31,386
Construction in progress	36,865		22,669
	528,093		501,596
Less accumulated amortization and depreciation	(319,365)		(297,594)
Total	$	208,728	$	204,002