Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Details-Stock-based compensation)

v3.22.2
Stock-Based Compensation (Details-Stock-based compensation) - USD ($)
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation $ 382,000 $ 371,000
Cost of Sales [Member]    
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation 0 (27,000)
Research and Development Expense [Member]    
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation 0 26,000
Selling, General and Administrative Expenses [Member]    
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation $ 382,000 $ 372,000