Earnings Per Common Share Diluted EPS (Details) - USD ($)	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income (Loss) Available to Common Stockholders, Basic	$ 2,016,331	$ 1,884,031
Weighted Average Shares Outstanding (Basic)	3,252,884	2,995,650
Net Income Per Common Share (Basic)	$ 0.62	$ 0.64
Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities	$ 0	$ 90,660
Weighted Average Shares Outstanding, Senior Convertible Debentures	0	302,200
Weighted Average Number Diluted Shares Outstanding Adjustment	2,348	1,152
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities	0	(0.03)
Net Income (Loss) Available to Common Stockholders, Diluted	$ 2,016,331	$ 1,974,691
Weighted Average Shares Outstanding (Diluted)	3,252,884	3,257,850
Net Income Per Common Share (Diluted)	$ 0.62	$ 0.61