5. Loans, Allowance for Loan Losses and Credit Quality (Details 2) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Allowance for loan losses, Beginning balance	$ 5,011,878	$ 4,905,874	$ 4,905,874
Charge-offs	(27,823)	(76,422)	(502,366)
Recoveries	25,433	23,597	98,370
Provisions (credit)	100,000	150,000	510,000
Allowance for loan losses, Ending balance	5,109,488	5,003,049	5,011,878
Allowance for loan losses evaluated for impairment, Individually	117,700	140,200	139,700
Allowance for loan losses evaluated for impairment, Collectively	4,991,788	4,862,849	4,872,178
Allowance for loan losses	5,109,488	5,003,049	5,011,878
Loans evaluated for impairment, Individually	2,060,927	3,939,120	4,491,996
Loans evaluated for impairment, Collectively	452,987,258	448,634,474	453,627,433
Total Loans	455,048,185	452,573,594	458,119,429
Commercial and industrial
Allowance for loan losses, Beginning balance	712,902	646,719	646,719
Charge-offs	(10,836)	(35,059)	(200,900)
Recoveries	19,295	5,607	59,264
Provisions (credit)	9,014	133,224	207,819
Allowance for loan losses, Ending balance	730,375	750,491	712,902
Allowance for loan losses evaluated for impairment, Individually	0	70,200	0
Allowance for loan losses evaluated for impairment, Collectively	730,375	680,291	712,902
Allowance for loan losses	730,375	750,491	712,902
Loans evaluated for impairment, Individually	204,354	702,732	286,436
Loans evaluated for impairment, Collectively	63,335,986	66,744,605	64,904,688
Total Loans	63,540,340	67,447,337	65,191,124
Commercial Real Estate
Allowance for loan losses, Beginning balance	2,152,678	2,311,936	2,311,936
Charge-offs	0	0	(14,783)
Recoveries	0	0	0
Provisions (credit)	142,625	13,175	(144,475)
Allowance for loan losses, Ending balance	2,295,303	2,325,111	2,152,678
Allowance for loan losses evaluated for impairment, Individually	0	0	0
Allowance for loan losses evaluated for impairment, Collectively	2,295,303	2,325,111	2,152,678
Allowance for loan losses	2,295,303	2,325,111	2,152,678
Loans evaluated for impairment, Individually	907,309	2,107,787	2,551,748
Loans evaluated for impairment, Collectively	177,298,011	169,345,317	175,654,794
Total Loans	178,205,320	171,453,104	178,206,542
Residential Real Estate - 1st Lien
Allowance for loan losses, Beginning balance	1,368,028	1,270,766	1,270,766
Charge-offs	(312)	(15,874)	(150,947)
Recoveries	312	6,042	6,042
Provisions (credit)	(29,101)	61,083	242,167
Allowance for loan losses, Ending balance	1,338,927	1,322,017	1,368,028
Allowance for loan losses evaluated for impairment, Individually	0	59,100	25,100
Allowance for loan losses evaluated for impairment, Collectively	1,338,927	1,262,917	1,342,928
Allowance for loan losses	1,338,927	1,322,017	1,368,028
Loans evaluated for impairment, Individually	717,673	820,565	1,419,808
Loans evaluated for impairment, Collectively	161,876,702	160,773,746	161,340,465
Total Loans	162,594,375	161,594,311	162,760,273
Residential Real Estate Jr Lien
Allowance for loan losses, Beginning balance	422,822	321,099	321,099
Charge-offs	0	(20,199)	(66,104)
Recoveries	60	60	240
Provisions (credit)	143	20,447	167,587
Allowance for loan losses, Ending balance	423,025	321,407	422,822
Allowance for loan losses evaluated for impairment, Individually	117,700	10,900	114,600
Allowance for loan losses evaluated for impairment, Collectively	305,325	310,507	308,222
Allowance for loan losses	423,025	321,407	422,822
Loans evaluated for impairment, Individually	231,591	308,036	234,004
Loans evaluated for impairment, Collectively	43,686,134	44,370,920	44,486,262
Total Loans	43,917,725	44,678,956	44,720,266
Consumer
Allowance for loan losses, Beginning balance	75,689	118,819	118,819
Charge-offs	(16,675)	(5,290)	(69,632)
Recoveries	5,766	11,888	32,824
Provisions (credit)	(6,324)	(39,333)	(6,322)
Allowance for loan losses, Ending balance	58,456	86,084	75,689
Allowance for loan losses evaluated for impairment, Individually	0	0	0
Allowance for loan losses evaluated for impairment, Collectively	58,456	86,084	75,689
Allowance for loan losses	58,456	86,084	75,689
Loans evaluated for impairment, Individually	0	0	0
Loans evaluated for impairment, Collectively	6,790,425	7,399,886	7,241,224
Total Loans	6,790,425	7,399,886	7,241,224
Unallocated
Allowance for loan losses, Beginning balance	279,759	236,535	236,535
Charge-offs	0	0	0
Recoveries	0	0	0
Provisions (credit)	(16,357)	(38,596)	43,224
Allowance for loan losses, Ending balance	263,402	197,939	279,759
Allowance for loan losses evaluated for impairment, Individually	0	0	0
Allowance for loan losses evaluated for impairment, Collectively	263,402	197,939	279,759
Allowance for loan losses	$ 263,402	$ 197,939	$ 279,759