Net Income per Share (Details) - Schedule of Earnings Per Share, Basic and Diluted - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Basic net income per share computation:
Net income	$ 222,748	$ 536,234	$ 333,728	$ 794,010
Preferred dividends	(80,000)	(80,000)	(160,000)	(160,000)
Net income attributable to common shareholders	142,748	456,234	173,728	634,010
Add: Preferred dividends	80,000	80,000	160,000	160,000
Diluted income attributable to common shareholders	$ 222,748	$ 536,234	$ 173,728	$ 794,010
Weighted-average common shares outstanding (in Shares)	3,255,887	3,255,887	3,255,887	3,255,887
Incremental shares attributable to the assumed conversion of preferred stock, and exercise of outstanding stock options and warrants (in Shares)	1,813,062	1,689,778	0	1,689,778
Total adjusted weighted-average shares (in Shares)	5,068,949	4,945,665	3,255,887	4,945,665
Diluted net income (loss) per share (in Dollars per share)	$ 0.04	$ 0.11	$ 0.05	$ 0.16
Basic net income per share (in Dollars per share)	$ 0.04	$ 0.14	$ 0.05	$ 0.19