Annual report pursuant to Section 13 and 15(d)

Stock Option Plans and 401(k) Plan (Details 1)

v3.21.2
Stock Option Plans and 401(k) Plan (Details 1) - $ / shares
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Share-based Payment Arrangement [Abstract]    
Exercise price $ 1.27 $ 1.14
Market price on date of grant $ 1.27 $ 1.05
Risk-free interest rate 0.53% 1.79%
Expected term (years) 5 years 6 months 29 days 5 years 4 months 28 days
Volatility 83.79% 86.99%
Expected dividend yield 0.00% 0.00%
Fair value per share at grant date $ .87 $ 0.73