INCOME TAXES (Details 2) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Computed "expected" tax expense									$ 1,769,525	$ 1,993,679	$ 1,686,702
Increase (reduction) in income taxes resulting from:
Amortization of credit and gain										1,685	196,477
Stock based compensation									19,527	16,391	15,205
Valuation allowance									8,083	7,123	7,538
Other									7,259	6,233	38,938
State income tax, net of federal benefit									238,729	268,000	(226,578)
Federal credits											(454,985)
Tax exempt interest income									(77,444)	(117,837)	(154,315)
Income tax expense	$ 528,834	$ 519,930	$ 459,582	$ 457,333	$ 522,548	$ 603,264	$ 550,229	$ 499,233	$ 1,965,679	$ 2,175,274	$ 1,108,982