Income (Loss) Per Common Share - Schedule of Reconciliation of Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Income (loss) per common share:
Net income (loss)	$ 80,497	$ 35,196	$ (261,143)	$ (101,777)
Shares outstanding: Weighted avg. shares outstanding - basic	2,051,081	2,040,166	2,044,054	2,040,166
Shares outstanding: Effect of the assumed exercise of dilutive stock options	$ 3,207
Shares outstanding: Weighted avg. shares outstanding - dilutive	2,054,288	2,040,166	2,044,054	2,040,166
Income (loss) per common share: Basic	$ 0.04	$ 0.02	$ (0.13)	$ (0.05)
Income (loss) per common share: Diluted	$ 0.04	$ 0.02	$ (0.13)	$ (0.05)