CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($)	Redeemable Preferred Stock	Common Stock	Retained Earnings	Total
Beginning balance, shares at Dec. 31, 2019	4,662,768	4,964,529
Beginning balance, amount at Dec. 31, 2019	$ 18,319,102	$ 8,512,489	$ 22,213,515	$ 49,045,106
Preferred stock dividends accrued	$ 256,452		(256,452)	0
Net income			787,082	787,082
Ending balance, shares at Mar. 31, 2020	4,662,768	4,964,529
Ending balance, amount at Mar. 31, 2020	$ 18,575,554	$ 8,512,489	22,744,145	49,832,188
Beginning balance, shares at Dec. 31, 2020	6,309,508	4,964,529
Beginning balance, amount at Dec. 31, 2020	$ 25,817,305	$ 8,512,489	24,492,133	58,821,927
Issuance of preferred stock, net, shares	229,333
Issuance of preferred stock, net, amount	$ 1,089,191			1,089,191
Preferred stock dividends accrued	$ 359,636		(359,636)	0
Net income			122,685	122,685
Ending balance, shares at Mar. 31, 2021	6,538,841	4,964,529
Ending balance, amount at Mar. 31, 2021	$ 27,266,132	$ 8,512,489	$ 24,255,182	$ 60,033,803