5. Loans, Allowance for Loan Losses and Credit Quality (Details 1) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
30-89 days	$ 3,107,557	$ 6,363,675
90 days or more	2,884,537	1,917,425
Total past due	5,992,094	8,281,100
Current	598,115,194	570,169,417
Total loans	604,107,288	578,450,517
Non-accrual loans	5,338,884	4,263,286
90 days or more and accruing	1,150,549	729,106
Commercial and industrial
30-89 days	174,959	217,385
90 days or more	162,330	0
Total past due	337,289	217,385
Current	92,307,580	80,549,308
Total loans	92,644,869	80,766,693
Non-accrual loans	570,171	84,814
90 days or more and accruing	0	0
Commercial Real Estate
30-89 days	536,098	1,509,839
90 days or more	261,321	190,789
Total past due	797,419	1,700,628
Current	248,802,302	233,617,520
Total loans	249,599,721	235,318,148
Non-accrual loans	1,746,986	1,742,993
90 days or more and accruing	0	0
Municipal
30-89 days	0	0
90 days or more	0	0
Total past due	0	0
Current	51,935,005	47,067,023
Total loans	51,935,005	47,067,023
Non-accrual loans	0	0
90 days or more and accruing	0	0
Residential real estate - 1st lien
30-89 days	1,896,729	4,108,319
90 days or more	2,166,286	1,371,061
Total past due	4,063,015	5,479,380
Current	156,993,213	160,185,795
Total loans	161,056,228	165,665,175
Non-accrual loans	2,754,912	2,026,939
90 days or more and accruing	969,072	622,486
Residential real estate - Jr lien
30-89 days	475,345	484,855
90 days or more	294,600	353,914
Total past due	769,945	838,769
Current	43,391,782	43,706,218
Total loans	44,161,727	44,544,987
Non-accrual loans	266,815	408,540
90 days or more and accruing	181,477	104,959
Consumer
30-89 days	24,426	43,277
90 days or more	0	1,661
Total past due	24,426	44,938
Current	4,685,312	5,043,553
Total loans	4,709,738	5,088,491
Non-accrual loans	0	0
90 days or more and accruing	$ 0	$ 1,661