v3.26.1
Plant and Equipment (Details) - USD ($)
Mar. 31, 2026
Mar. 31, 2025
Foreign Countries [Member]    
Plant and Equipment [Abstract]    
Total plant and equipment $ 27,321,000 $ 27,760,000
Mexico [Member]    
Plant and Equipment [Abstract]    
Total plant and equipment $ 24,126,000 $ 25,001,000