CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Gain	Total
Balances at Dec. 31, 2018	$ 2,814,000	$ 10,401,000	$ 22,066,000	$ (1,230,000)	$ 34,051,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			135,000		135,025
Cash dividends, $0.40 per share			(282,000)		(282,000)
Dividends reinvested under dividend reinvestment plan	4,000	32,000			36,000
Other comprehensive income				515,000	515,000
Balances at Mar. 31, 2019	2,818,000	10,433,000	21,919,000	(715,000)	34,455,000
Balances at Dec. 31, 2019	2,827,000	10,525,000	22,537,000	(209,000)	35,680,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			268,000		268,384
Cash dividends, $0.40 per share			(283,000)		(283,000)
Dividends reinvested under dividend reinvestment plan	3,000	29,000			32,000
Other comprehensive income				160,000	160,000
Balances at Mar. 31, 2020	$ 2,830,000	$ 10,554,000	$ 22,522,000	$ (49,000)	$ 35,857,000