Property, Plant and Equipment (Tables)

6 Months Ended

Oct. 31, 2020

Property, Plant and Equipment [Abstract]

Components Of Property, Plant And Equipment

The components of property, plant and equipment were:

	October 31,		April 30,
(in thousands)	2020		2020
Land	$	4,431	$	4,431
Buildings and improvements	121,743		120,819
Buildings and improvements - finance leases	11,636		11,636
Machinery and equipment	305,692		312,806
Machinery and equipment - finance leases	30,870		30,911
Construction in progress	13,313		8,164
	487,685		488,767
Less accumulated amortization and depreciation	(288,790)		(284,943)
Total	$	198,895	$	203,824