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Property, Plant and Equipment
 6 Months Ended
Jul. 31, 2026
Property, Plant, and Equipment [Abstract]  
Property, Plant, and Equipment Property, Plant and Equipment, Net
Property, plant and equipment, net consists of the following:
7/31/20261/31/20267/31/2025
(In thousands)
Land$3,731 $3,731 $3,731 
Land improvements706 706 706 
Buildings and building improvements52,059 52,059 52,050 
Machinery and equipment124,903 123,179 122,538 
Leasehold improvements649 649 657 
Property, plant and equipment, gross182,048 180,324 179,682 
Less accumulated depreciation and amortization(148,652)(145,746)(143,562)
Property, plant and equipment, net$33,396 $34,578 $36,120 

Depreciation and amortization expenses related to property, plant and equipment recorded within cost of goods sold were $1.1 million for the three months ended July 31, 2026 and 2025. Depreciation and amortization expenses related to property, plant and equipment recorded within selling, general and administrative expenses were $0.3 million and $0.5 million for the three months ended July 31, 2026 and 2025, respectively.

Depreciation and amortization expenses related to property, plant and equipment recorded within cost of goods sold were $2.3 million for the six months ended July 31, 2026 and 2025. Depreciation and amortization expenses related to property, plant and equipment recorded within selling, general and administrative expenses were $0.6 million and $0.8 million for the six months ended July 31, 2026 and 2025, respectively.