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

Property, Plant and Equipment (Details)

v3.25.1
Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost $ 148,597 $ 141,757  
Accumulated depreciation (75,773) (73,422)  
Property, plant and equipment, net 72,824 68,335  
Depreciation expense 8,658    
Depreciation, depletion and amortization 22,339 18,837 $ 19,231
Land, buildings and improvements      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost 60,233 57,514  
Machinery and equipment      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost 61,079 57,892  
Office furniture and equipment      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost 18,945 19,239  
Internally developed software      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost 5,213 5,069  
Depreciation expense   8,679 9,784
Depreciation, depletion and amortization 21 226 $ 334
Construction in progress      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment at cost $ 3,127 $ 2,043