v3.26.1
Summary of Significant Accounting Policies (Details)
12 Months Ended
Mar. 31, 2026
USD ($)
Segment
Mar. 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Summary of Significant Accounting Policies [Abstract]      
Number of operating segments (in Segment) | Segment 3    
Prior period over which allocations of labor and variable and fixed overhead costs are determined based on average actual use of production facilities 12 months    
Reserve for excess and obsolete inventory $ 19,002,000 $ 18,964,000  
Period of normal operating cycle 1 year    
Impairment of plant and equipment $ 0 0 $ 0
Gain (loss) in foreign currency-denominated lease liabilities 6,409,000 (11,713,000) 5,187,000
Impairment of goodwill 0 0 0
Impairment of intangible assets 0 0 0
Advertising expenses 1,041,000 435,000 614,000
Carrying value of plan assets 2,028,000 1,881,000  
Deferred compensation obligation 2,028,000 1,881,000  
Expense related to the deferred compensation plan 80,000 36,000 6,000
Employee contributions made to deferred compensation plan 115,000 46,000 82,000
Short-term investments redeemed for the payment of deferred compensation liabilities 301,000 151,000 603,000
General and Administrative Expenses [Member]      
Summary of Significant Accounting Policies [Abstract]      
Foreign currency transaction gain (loss) $ 494,000 $ (2,987,000) $ 515,000
Maximum [Member]      
Summary of Significant Accounting Policies [Abstract]      
Percentage of inventory reserve to cost if no liquidation market exists for part 100.00%    
Amortization period for core premiums 8 years    
Amortization period for finished goods premiums 8 years    
Lease renewal term 5 years    
Remanufactured cores nominal price (in dollars per core) 0.01    
Percentage of stock adjustment returns 5.00%    
Percentage of aggregate returns 20.00%    
Maximum [Member] | Machinery and Equipment [Member]      
Summary of Significant Accounting Policies [Abstract]      
Estimated service life 10 years    
Maximum [Member] | Office Equipment and Fixtures [Member]      
Summary of Significant Accounting Policies [Abstract]      
Estimated service life 10 years    
Minimum [Member]      
Summary of Significant Accounting Policies [Abstract]      
Amortization period for core premiums 6 years    
Minimum [Member] | Machinery and Equipment [Member]      
Summary of Significant Accounting Policies [Abstract]      
Estimated service life 5 years    
Minimum [Member] | Office Equipment and Fixtures [Member]      
Summary of Significant Accounting Policies [Abstract]      
Estimated service life 3 years