Consolidated Statements of Income - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
INTEREST INCOME
Loans, including fees	$ 4,984,492	$ 4,863,971	$ 9,700,911	$ 9,432,050
Investment securities	2,734,424	2,919,236	5,557,112	5,751,687
Other interest	60,060	59,086	120,344	127,633
Total interest income	7,778,976	7,842,293	15,378,367	15,311,370
INTEREST EXPENSE
Deposits	515,506	486,003	1,016,715	963,645
Other borrowed funds	311,034	343,814	604,466	673,619
Total interest expense	826,540	829,817	1,621,181	1,637,264
NET INTEREST INCOME	6,952,436	7,012,476	13,757,186	13,674,106
PROVISION FOR (REVERSAL OF) LOAN LOSSES	88,962	(29,586)	(147,811)	(180,806)
NET INTEREST INCOME AFTER PROVISION FOR (REVERSAL OF) LOAN LOSSES	6,863,474	7,042,062	13,904,997	13,854,912
OTHER INCOME
Other operating income	294,097	430,349	582,470	705,806
Total other income	2,078,410	2,123,192	4,178,840	4,057,452
OTHER EXPENSES
Salaries and employee benefits	3,675,422	3,745,433	7,343,279	7,409,237
Occupancy expense	1,361,622	1,338,630	2,887,001	2,648,873
Other operating expense	1,910,845	1,826,548	3,765,290	3,961,657
Total other expenses	6,947,889	6,910,611	13,995,570	14,019,767
INCOME BEFORE PROVISION FOR INCOME TAXES	1,993,995	2,254,643	4,088,267	3,892,597
PROVISION FOR INCOME TAXES	305,855	471,190	627,740	671,819
NET INCOME	$ 1,688,140	$ 1,783,453	$ 3,460,527	$ 3,220,778
NET INCOME PER SHARE -Basic	$ 0.35	$ 0.37	$ 0.71	$ 0.66
NET INCOME PER SHARE -Diluted	0.35	0.36	0.71	0.66
DIVIDENDS PAID PER SHARE	$ 0.24	$ 0.24	$ 0.48	$ 0.48
Deposit Account [Member]
OTHER INCOME
Other income	$ 1,067,260	$ 1,019,372	$ 2,210,853	$ 2,061,403
Financial Service, Other [Member]
OTHER INCOME
Other income	$ 717,053	$ 673,471	$ 1,385,517	$ 1,290,243