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, 2017	7,310,939
Balance at Dec. 31, 2017	$ 731,095	$ 21,280,437	$ 405,438	$ (8,481,268)	$ 13,935,702
Common stock issued, $7 per share (in shares)	204,553
Common stock issued, $7 per share	$ 20,455	1,411,416			1,431,871
Costs associated with common stock issued		(417,088)			(417,088)
Other comprehensive loss			(1,647,536)		(1,647,536)
Net income (loss)				(783,473)	(783,473)
Cumulative effect, adoption of accounting guidance for equity securities					0
Balance (in shares) at Sep. 30, 2018	7,515,492
Balance at Sep. 30, 2018	$ 751,550	22,274,765	(1,242,098)	(9,264,741)	12,519,476
Balance (in shares) at Jun. 30, 2018	7,453,287
Balance at Jun. 30, 2018	$ 745,330	21,985,207	(1,098,682)	(9,060,854)	12,571,001
Common stock issued, $7 per share (in shares)	62,205
Common stock issued, $7 per share	$ 6,221	429,215			435,435
Costs associated with common stock issued		(139,657)			(139,657)
Other comprehensive loss			(143,416)		(143,416)
Net income (loss)				(203,887)	(203,887)
Cumulative effect, adoption of accounting guidance for equity securities
Balance (in shares) at Sep. 30, 2018	7,515,492
Balance at Sep. 30, 2018	$ 751,550	22,274,765	(1,242,098)	(9,264,741)	12,519,476
Balance (in shares) at Dec. 31, 2018	7,650,551
Balance at Dec. 31, 2018	$ 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 loss			4,679,277		4,679,277
Net income (loss)				383,532	383,532
Cumulative effect, adoption of accounting guidance for equity securities				(1,098,760)	(1,098,760)
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 loss			992,674		992,674
Net income (loss)				42,446	42,446
Cumulative effect, adoption of accounting guidance for equity securities
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
Other comprehensive income