Annual report [Section 13 and 15(d), not S-K Item 405]

Property, Plant and Equipment (Details)

v3.26.1
Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost $ 161,673 $ 148,597  
Accumulated depreciation (81,934) (75,773)  
Property, plant and equipment, net 79,739 72,824  
Depreciation expense 9,038    
Depreciation, depletion and amortization 22,466 22,339 $ 18,837
Land, buildings and improvements      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost 63,989 60,233  
Machinery and equipment      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost 68,130 61,079  
Office furniture and equipment      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost 21,367 18,945  
Internally developed software      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost 5,213 5,213  
Depreciation expense   8,658 8,679
Depreciation, depletion and amortization 29 21 $ 226
Construction in progress      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost $ 2,974 $ 3,127