Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2019	7,734,004
Balance at Dec. 31, 2019	$ 773,401	$ 23,210,257	$ 2,329,495	$ (9,436,956)	$ 16,876,197
Common stock issued, $7 per share (in shares)	6,696
Common stock issued, $7 per share	$ 670	46,202			46,872
Costs associated with common stock issued		(51,565)			(51,565)
Other comprehensive loss			(1,705,031)		(1,705,031)
Net loss				(2,703,371)	(2,703,371)
Balance (in shares) at Mar. 31, 2020	7,740,700
Balance at Mar. 31, 2020	$ 774,071	23,204,894	624,464	(12,140,327)	12,463,102
Balance (in shares) at Dec. 31, 2020	7,741,487
Balance at Dec. 31, 2020	$ 774,150	23,063,273	3,564,875	(8,997,507)	18,404,791
Common stock issued, $7 per share (in shares)	1,086
Common stock issued, $7 per share	$ 108	7,494			7,602
Costs associated with common stock issued		(47,556)			(47,556)
Other comprehensive loss			(2,265,849)		(2,265,849)
Net loss				(336,217)	(336,217)
Balance (in shares) at Mar. 31, 2021	7,742,573
Balance at Mar. 31, 2021	$ 774,258	$ 23,023,211	$ 1,299,026	$ (9,333,724)	$ 15,762,771