Schedule of Reconciliation of Basic and Diluted Net Income (loss) Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Income (loss) per common share:
Net income (loss)	$ 753,302	$ 80,497	$ 1,857,136	$ (261,143)
Shares outstanding: Weighted avg. common shares outstanding - basic	2,120,912	2,051,081	2,096,433	2,044,054
Shares outstanding: Effect of the assumed exercise of dilutive stock options	$ 55,328	$ 3,207	$ 50,284
Shares outstanding: Weighted avg. common shares outstanding - dilutive	2,176,240	2,054,288	2,146,717	2,044,054
Income (loss) per common share: Basic	$ 0.36	$ 0.04	$ 0.89	$ (0.13)
Income (loss) per common share: Diluted	$ 0.35	$ 0.04	$ 0.87	$ (0.13)