Condensed Consolidated Statements of Changes in Stockholders' Equity (Deficit) - USD ($)	Series A Preferred Stock [Member] Preferred Stock [Member]	Series B Preferred Stock [Member] Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balances at Mar. 31, 2019	$ 3,275,998	$ 1,007,367	$ 325,586	$ 7,914,955	$ (12,606,589)	$ (82,683)
Balances (in Shares) at Mar. 31, 2019	500,000	166,667	3,255,887
8% Dividends on Preferred Stock	$ 180,000	$ 60,000		(240,000)		240,000
Stock-based compensation				16,393		16,393
Net income					1,701,587	1,701,587
Balances at Dec. 31, 2019	$ 3,455,998	$ 1,067,367	$ 325,586	7,691,348	(10,905,002)	1,635,297
Balances (in Shares) at Dec. 31, 2019	500,000	166,667	3,255,887
Balances at Sep. 30, 2019	$ 3,395,998	$ 1,047,367	$ 325,586	7,766,072	(11,812,579)	722,444
Balances (in Shares) at Sep. 30, 2019	500,000	166,667	3,255,887
8% Dividends on Preferred Stock	$ 60,000	$ 20,000		(80,000)		80,000
Stock-based compensation				5,276		5,276
Net income					907,577	907,577
Balances at Dec. 31, 2019	$ 3,455,998	$ 1,067,367	$ 325,586	7,691,348	(10,905,002)	1,635,297
Balances (in Shares) at Dec. 31, 2019	500,000	166,667	3,255,887
Balances at Mar. 31, 2020	$ 3,515,998	$ 1,087,367	$ 325,586	7,616,624	(7,870,099)	$ 4,675,476
Balances (in Shares) at Mar. 31, 2020	500,000	166,667	3,255,887			3,255,887
8% Dividends on Preferred Stock	$ 180,000	$ 60,000		(240,000)		$ 240,000
Stock-based compensation				15,829		15,829
Net income					833,361	833,361
Balances at Dec. 31, 2020	$ 3,695,998	$ 1,147,367	$ 325,586	7,392,453	(7,036,738)	$ 5,524,666
Balances (in Shares) at Dec. 31, 2020	500,000	166,667	3,255,887			3,255,887
Balances at Sep. 30, 2020	$ 3,635,998	$ 1,127,367	$ 325,586	7,467,176	(7,536,371)	$ 5,019,756
Balances (in Shares) at Sep. 30, 2020	500,000	166,667	3,255,887
8% Dividends on Preferred Stock	$ 60,000	$ 20,000		(80,000)		80,000
Stock-based compensation				5,277		5,277
Net income					499,633	499,633
Balances at Dec. 31, 2020	$ 3,695,998	$ 1,147,367	$ 325,586	$ 7,392,453	$ (7,036,738)	$ 5,524,666
Balances (in Shares) at Dec. 31, 2020	500,000	166,667	3,255,887			3,255,887