Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($)	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2018						7,650,551
Balance at Dec. 31, 2018			$ 1,098,760	$ (1,098,760)		$ 765,056	$ 22,989,443	$ (2,184,429)	$ (8,937,404)	$ 12,632,666
Common stock issued, $7 per share (in shares)						82,019
Common stock issued, $7 per share						$ 8,202	565,931			574,133
Costs associated with common stock issued							(300,981)			(300,981)
Other comprehensive income								3,580,517		2,494,848
Net income (loss)									383,532	383,532
Balance (in shares) at Sep. 30, 2019						7,732,570
Balance at Sep. 30, 2019						$ 773,258	23,254,393	2,494,848	(9,652,632)	16,869,867
Balance (in shares) at Jun. 30, 2019						7,707,090
Balance at Jun. 30, 2019						$ 770,710	23,141,692	1,502,174	(9,695,078)	15,719,498
Common stock issued, $7 per share (in shares)						25,480
Common stock issued, $7 per share						$ 2,548	175,812			178,360
Costs associated with common stock issued							(63,111)			(63,111)
Other comprehensive income								992,674		992,674
Net income (loss)									42,446	42,446
Balance (in shares) at Sep. 30, 2019						7,732,570
Balance at Sep. 30, 2019						$ 773,258	23,254,393	2,494,848	(9,652,632)	16,869,867
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)						7,354
Common stock issued, $7 per share						$ 736	50,742			51,478
Costs associated with common stock issued							(144,863)			(144,863)
Other comprehensive income								1,750,472		1,750,472
Net income (loss)									(2,057,588)	(2,057,588)
Balance (in shares) at Sep. 30, 2020						7,741,358
Balance at Sep. 30, 2020						$ 774,137	23,116,136	4,079,967	(11,494,544)	16,475,696
Balance (in shares) at Jun. 30, 2020						7,741,229
Balance at Jun. 30, 2020						$ 774,124	23,161,098	3,517,249	(12,566,699)	14,885,772
Common stock issued, $7 per share (in shares)						129
Common stock issued, $7 per share						$ 13	890			903
Costs associated with common stock issued							(45,852)			(45,852)
Other comprehensive income								562,718		562,718
Net income (loss)									1,072,155	1,072,155
Balance (in shares) at Sep. 30, 2020						7,741,358
Balance at Sep. 30, 2020						$ 774,137	$ 23,116,136	$ 4,079,967	$ (11,494,544)	$ 16,475,696