Loans Allowance for Loan Losses and Credit Quality (Details 3) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Allowance for loan losses, beginning balance	$ 6,515,684	$ 5,723,753	$ 5,926,491	$ 5,602,541	$ 5,602,541
Charge-offs	(100,825)	(267,333)	(250,092)	(541,757)	(860,059)
Recoveries	10,750	14,723	65,208	56,190	117,842
Provisions (credit)	362,499	412,499	1,046,501	766,668	1,066,167
Allowance for loan losses, ending balance	6,788,108	5,883,642	6,788,108	5,883,642	5,926,491
Allowance for loan losses evaluated for impairment, individually	111,796		111,796		104,548
Allowance for loan losses evaluated for impairment, collectively	6,676,312		6,676,312		5,821,943
Total ALL evaluted for impairment			6,788,108		5,926,491
Total, Loans evaluted for impairment			738,247,772		606,988,937
Loans evaluated for impairment, individually	7,069,716		7,069,716		6,748,146
Loans evaluated for impairment, collectively	731,178,056		731,178,056		600,240,791
Municipal
Allowance for loan losses, beginning balance	0	0	0	0	0
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0	0
Provisions (credit)	41,866	0	41,866	0	0
Allowance for loan losses, ending balance	41,866	0	41,866	0	0
Allowance for loan losses evaluated for impairment, individually	0		0		0
Allowance for loan losses evaluated for impairment, collectively	41,866		41,866		0
Total ALL evaluted for impairment			41,866		0
Total, Loans evaluted for impairment			52,332,802		55,817,206
Loans evaluated for impairment, individually	0		0		0
Loans evaluated for impairment, collectively	52,332,802		52,332,802		55,817,206
Commercial and industrial
Allowance for loan losses, beginning balance	886,546	715,132	836,766	697,469	697,469
Charge-offs	(34,565)	(6,795)	(34,565)	(10,368)	(175,815)
Recoveries	0	1,690	1,087	10,768	10,768
Provisions (credit)	90,770	133,632	139,463	145,790	304,344
Allowance for loan losses, ending balance	942,751	843,659	942,751	843,659	836,766
Allowance for loan losses evaluated for impairment, individually	0		0		0
Allowance for loan losses evaluated for impairment, collectively	942,751		942,751		836,766
Total ALL evaluted for impairment			942,751		836,766
Total, Loans evaluted for impairment			197,637,213		98,930,831
Loans evaluated for impairment, individually	374,558		374,558		420,933
Loans evaluated for impairment, collectively	197,262,655		197,262,655		98,509,898
Commercial Real Estate
Allowance for loan losses, beginning balance	3,406,502	3,094,781	3,181,646	3,019,868	3,019,868
Charge-offs	(2,200)	(101,476)	(2,200)	(116,186)	(116,186)
Recoveries	0	0	20,000	0	50,388
Provisions (credit)	222,268	272,858	427,124	362,481	227,576
Allowance for loan losses, ending balance	3,626,570	3,266,163	3,626,570	3,266,163	3,181,646
Allowance for loan losses evaluated for impairment, individually	0		0		0
Allowance for loan losses evaluated for impairment, collectively	3,626,570		3,626,570		3,181,646
Total ALL evaluted for impairment			3,626,570		3,181,646
Total, Loans evaluted for impairment			280,495,907		246,282,726
Loans evaluated for impairment, individually	1,822,625		1,822,625		1,699,238
Loans evaluated for impairment, collectively	278,673,282		278,673,282		244,583,488
Residential Real Estate - 1st Lien
Allowance for loan losses, beginning balance	1,511,897	1,427,357	1,388,654	1,421,494	1,421,494
Charge-offs	(56,500)	(147,724)	(134,196)	(242,244)	(242,244)
Recoveries	4,742	1,059	10,552	11,131	15,776
Provisions (credit)	36,383	130,189	231,602	220,500	193,538
Allowance for loan losses, ending balance	1,496,522	1,410,881	1,496,522	1,410,881	1,388,654
Allowance for loan losses evaluated for impairment, individually	111,435		111,435		103,836
Allowance for loan losses evaluated for impairment, collectively	1,385,087		1,385,087		1,284,728
Total ALL evaluted for impairment			1,496,522		1,388,564
Total, Loans evaluted for impairment			165,004,745		158,337,296
Loans evaluated for impairment, individually	4,724,624		4,724,624		4,471,902
Loans evaluated for impairment, collectively	160,280,121		160,280,121		153,865,394
Residential Real Estate Jr Lien
Allowance for loan losses, beginning balance	319,749	287,984	289,684	273,445	273,445
Charge-offs	0	0	(28,673)	(102,000)	(222,999)
Recoveries	533	485	5,280	1,486	2,200
Provisions (credit)	6,434	(3,402)	60,425	112,136	237,038
Allowance for loan losses, ending balance	326,716	285,067	326,716	285,067	289,684
Allowance for loan losses evaluated for impairment, individually	361		361		712
Allowance for loan losses evaluated for impairment, collectively	326,355		326,355		288,972
Total ALL evaluted for impairment			326,716		289,684
Total, Loans evaluted for impairment			38,603,996		43,230,873
Loans evaluated for impairment, individually	147,909		147,909		156,073
Loans evaluated for impairment, collectively	38,456,087		38,456,087		43,074,800
Consumer
Allowance for loan losses, beginning balance	48,653	53,410	51,793	56,787	56,787
Charge-offs	(7,560)	(11,338)	(50,458)	(70,959)	(102,815)
Recoveries	5,475	11,489	28,289	32,805	38,710
Provisions (credit)	8,709	(454)	25,653	34,474	59,111
Allowance for loan losses, ending balance	55,277	53,107	55,277	53,107	51,793
Allowance for loan losses evaluated for impairment, individually	0		0		0
Allowance for loan losses evaluated for impairment, collectively	55,277		55,277		51,793
Total ALL evaluted for impairment			55,277		51,793
Total, Loans evaluted for impairment			4,173,109		4,390,005
Loans evaluated for impairment, individually	0		0		0
Loans evaluated for impairment, collectively	4,173,109		4,173,109		4,390,005
Unallocated
Allowance for loan losses, beginning balance	342,337	145,089	178,038	133,478	133,478
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0	0
Provisions (credit)	43,931	(120,324)	(120,368)	(108,713)	44,560
Allowance for loan losses, ending balance	298,406	$ 24,765	298,406	$ 24,765	178,038
Allowance for loan losses evaluated for impairment, individually	0		0		0
Allowance for loan losses evaluated for impairment, collectively	$ 298,406		298,406		178,038
Total ALL evaluted for impairment			$ 298,406		$ 178,038