CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)	Common Stock	Additional Paid-In Capital	Retained Earnings Adjustment	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Adjustment	Total
Balances at Dec. 31, 2020	$ 2,842,000	$ 10,640,000		$ 23,071,000	$ 540,000		$ 37,093,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				1,962,000			1,962,090
Cash dividends, $0.30 per share				(853,000)			(853,000)
Dividends reinvested under dividend reinvestment plan	9,000	91,000					100,000
Other comprehensive loss					(1,865,000)		(1,865,000)
Balances at Sep. 30, 2021	2,851,000	10,731,000	$ (1,472,000)	22,708,000	(1,325,000)	$ (1,472,000)	34,965,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Retained earnings							22,977,000
Balances at Dec. 31, 2021	2,854,000	10,759,000		22,977,000	(874,000)		35,716,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				915,000			915,274
Cash dividends, $0.30 per share				(857,000)			(857,000)
Dividends reinvested under dividend reinvestment plan	8,000	77,000					85,000
Other comprehensive loss					(21,519,000)		(21,519,000)
Balances at Sep. 30, 2022	$ 2,862,000	$ 10,836,000		$ 23,035,000	$ (22,393,000)		14,340,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Retained earnings							$ 23,035,000