v3.26.1
Significant Customer and Other Information - Concentrations of Risk (Details)
3 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Customer Concentration Risk [Member] | Customer A [Member] | Sales Revenue Product Line [Member]      
Significant Customer and Other Information [Abstract]      
Concentration risk percentage 37.00% 39.00%  
Customer Concentration Risk [Member] | Customer A [Member] | Accounts Receivable [Member]      
Significant Customer and Other Information [Abstract]      
Concentration risk percentage 49.00%   52.00%
Customer Concentration Risk [Member] | Customer C [Member] | Sales Revenue Product Line [Member]      
Significant Customer and Other Information [Abstract]      
Concentration risk percentage 28.00% 22.00%  
Customer Concentration Risk [Member] | Customer C [Member] | Accounts Receivable [Member]      
Significant Customer and Other Information [Abstract]      
Concentration risk percentage 7.00%   18.00%
Customer Concentration Risk [Member] | Customer B [Member] | Sales Revenue Product Line [Member]      
Significant Customer and Other Information [Abstract]      
Concentration risk percentage 18.00% 24.00%  
Customer Concentration Risk [Member] | Customer B [Member] | Accounts Receivable [Member]      
Significant Customer and Other Information [Abstract]      
Concentration risk percentage 15.00%   12.00%
Product Concentration Risk [Member] | Sales Revenue Product Line [Member]      
Significant Customer and Other Information [Abstract]      
Concentration risk percentage 100.00% 100.00%  
Product Concentration Risk [Member] | Rotating Electrical Products [Member] | Sales Revenue Product Line [Member]      
Significant Customer and Other Information [Abstract]      
Concentration risk percentage 58.00% 66.00%  
Product Concentration Risk [Member] | Brake-Related Products [Member] | Sales Revenue Product Line [Member]      
Significant Customer and Other Information [Abstract]      
Concentration risk percentage 38.00% 29.00%  
Product Concentration Risk [Member] | Other Products [Member] | Sales Revenue Product Line [Member]      
Significant Customer and Other Information [Abstract]      
Concentration risk percentage 4.00% 5.00%