Property, Plant and Equipment (Tables)

3 Months Ended

Jul. 31, 2020

Property, Plant and Equipment [Abstract]

Components Of Property, Plant And Equipment

The components of property, plant and equipment were:

	July 31,		April 30,
(in thousands)	2020		2020
Land	$	4,431	$	4,431
Buildings and improvements	120,995		120,819
Buildings and improvements - finance leases	11,636		11,636
Machinery and equipment	313,661		312,806
Machinery and equipment - finance leases	30,972		30,911
Construction in progress	9,158		8,164
	490,853		488,767
Less accumulated amortization and depreciation	(291,765)		(284,943)
Total	$	199,088	$	203,824