v3.26.1
1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - customer
3 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Accounts Receivable    
Concentration of credit risk    
Number of customers 1  
Accounts Receivable | Customer Concentration Risk | Major Customer One    
Concentration of credit risk    
Percentage attributable to customers 62.00%  
Sales Revenue, Net | Customer Concentration Risk | Nokia    
Concentration of credit risk    
Percentage attributable to customers 5.00% 9.00%