Consolidated Statements of Changes in Shareholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Shares Held By Subsidiary [Member]	Total
Balance (in shares) at Dec. 31, 2017	995,253
Balance at Dec. 31, 2017		$ 6,323,450	$ 15,061,757	$ 5,029,160	$ (8,454,506)	$ 18,955,114
Net income (loss)			(115,709)			(115,709)
Issuance of stock option awards		70,280				70,280
Unrealized gains (losses) on securities, net of reclassification adjustment				(154,558)		(154,558)
Purchase of shares by subsidiary, net					(486,545)	(486,545)
Dividends ($0.50 per share)			(313,417)			(313,417)
Cumulative effect of adoption of accounting guidance (ASU 2016-01)			5,092,950	(5,092,950)
Balance (in shares) at Dec. 31, 2018	995,253
Balance at Dec. 31, 2018		6,393,730	19,725,581	(218,348)	(8,941,051)	17,955,165
Net income (loss)			2,412,519			2,412,519
Unrealized gains (losses) on securities, net of reclassification adjustment				321,978		321,978
Purchase of shares by subsidiary, net					(122,566)	(122,566)
Dividends ($0.50 per share)			(295,691)			(295,691)
Stock option awards expense		72,046				72,046
Balance (in shares) at Dec. 31, 2019	995,253
Balance at Dec. 31, 2019		$ 6,465,776	$ 21,842,409	$ 103,630	$ (9,063,617)	$ 20,343,451