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

Organization and Summary of Significant Accounting Policies- Narrative (Details)

v3.26.1
Organization and Summary of Significant Accounting Policies- Narrative (Details) - USD ($)
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Product Information [Line Items]      
Entity wide disclosure on geographic areas, revenue from external customers attributed to foreign countries, percentage 51.00% 49.00% 51.00%
Disclosure on geographic areas, long-lived assets in foreign countries 47.00% 47.00%  
Guarantee obligations secured by cash deposits $ 1,417,000 $ 789,000 $ 518,000
Billed contracts receivable 3,637,000 4,422,000  
Accounts receivable, allowance for doubtful accounts 1,355,000 1,230,000  
Cloud computing arrangement, unamortized implementation cost 12,784,000 8,250,000  
Goodwill, impairment loss $ 0 0 0
Standard warranty term 1 year    
Research and development expense $ 9,511,000 9,408,000 $ 9,799,000
Minimum      
Product Information [Line Items]      
Standard warranty term 1 year    
Maximum      
Product Information [Line Items]      
Standard warranty term 18 months    
Prepaid Expenses and Other Current Assets      
Product Information [Line Items]      
Cloud computing arrangement, unamortized implementation cost $ 2,209,000 1,206,000  
Other Noncurrent Assets      
Product Information [Line Items]      
Cloud computing arrangement, unamortized implementation cost $ 10,575,000 $ 7,044,000