XML 66 R57.htm IDEA: XBRL DOCUMENT v3.23.3
10. STOCK-BASED COMPENSATION - Stock-based compensation expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Stock-based compensation expense by line item        
Stock-based compensation expense $ 676 $ 661 $ 1,496 $ 1,299
Cost of Revenues        
Stock-based compensation expense by line item        
Stock-based compensation expense 57 49 124 109
Research and Development Expense        
Stock-based compensation expense by line item        
Stock-based compensation expense 369 390 755 741
Selling, General and Administrative Expenses        
Stock-based compensation expense by line item        
Stock-based compensation expense $ 250 $ 222 $ 617 $ 449