9. STOCK COMPENSATION (Details - Stock compensation) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Total stock-based compensation expense	$ 102,576	$ 344,854	$ 755,648	$ 944,512
Weighted average number of common shares outstanding- basic and diluted	2,887,883	1,203,344	1,821,557	1,191,012
Basic and diluted loss per common share attributable to stock-based compensation expense	$ (0.28)	$ (1.67)	$ (2.52)	$ (3.82)
Vesting of stock options and restricted stock units [Member]
Total stock-based compensation expense	$ 102,576	$ 344,854	$ 755,648	$ 944,512
Share-Based Compensation [Member]
Basic and diluted loss per common share attributable to stock-based compensation expense	$ (0.04)	$ (0.29)	$ (0.41)	$ (0.79)