3. Loans, Allowance for Loan Losses and Credit Quality (Tables)

12 Months Ended

Dec. 31, 2015

Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]

Composition of net loans

	2015			2014
Commercial & industrial	$	65,191,124		$	64,390,220
Commercial real estate		178,206,542			166,611,830
Residential real estate - 1st lien		162,760,273			163,966,124
Residential real estate - Jr lien		44,720,266			44,801,483
Consumer		7,241,224			8,035,298
		458,119,429			447,804,955
Deduct (add):
Allowance for loan losses		5,011,878			4,905,874
Deferred net loan costs		(316,491	)		(303,394	)
		4,695,387			4,602,480
Net Loans	$	453,424,042		$	443,202,475

Past due loans by segment

													90 Days or
			90 Days		Total						Non-Accrual		More
December 31, 2015	30-89 Days		or More		Past Due		Current		Total Loans		Loans		and Accruing
Commercial & industrial	$	224,997	$	168,244	$	393,241	$	64,797,883	$	65,191,124	$	441,103	$	13,556
Commercial real estate		888,994		560,439		1,449,433		176,757,109		178,206,542		2,400,757		45,356
Residential real estate
- 1st lien		2,875,768		1,408,551		4,284,319		158,475,954		162,760,273		2,009,079		801,241
- Jr lien		521,373		63,031		584,404		44,135,862		44,720,266		386,132		63,031
Consumer		83,343		0		83,343		7,157,881		7,241,224		0		0
Total	$	4,594,475	$	2,200,265	$	6,794,740	$	451,324,689	$	458,119,429	$	5,237,071	$	923,184

													90 Days or
			90 Days		Total						Non-Accrual		More
December 31, 2014	30-89 Days		or More		Past Due		Current		Total Loans		Loans		and Accruing
Commercial & industrial	$	439,151	$	299,095	$	738,246	$	63,651,974	$	64,390,220	$	552,386	$	23,579
Commercial real estate		988,924		5,313		994,237		165,617,593		166,611,830		1,934,096		5,313
Residential real estate
- 1st lien		4,446,138		1,484,334		5,930,472		158,035,652		163,966,124		1,263,046		980,138
- Jr lien		637,917		179,920		817,837		43,983,646		44,801,483		404,061		115,852
Consumer		56,392		0		56,392		7,978,906		8,035,298		0		0
Total	$	6,568,522	$	1,968,662	$	8,537,184	$	439,267,771	$	447,804,955	$	4,153,589	$	1,124,882

Changes in the allowance for loan losses

As of or for the year ended December 31, 2015
							Residential			Residential
	Commercial			Commercial			Real Estate			Real Estate
	& Industrial			Real Estate			1st Lien			Jr Lien			Consumer			Unallocated		Total
Allowance for loan losses
Beginning balance	$	646,719		$	2,311,936		$	1,270,766		$	321,099		$	118,819		$	236,535	$	4,905,874
Charge-offs		(200,900	)		(14,783	)		(150,947	)		(66,104	)		(69,632	)		0		(502,366	)
Recoveries		59,264			0			6,042			240			32,824			0		98,370
Provision (credit)		207,819			(144,475	)		242,167			167,587			(6,322	)		43,224		510,000
Ending balance	$	712,902		$	2,152,678		$	1,368,028		$	422,822		$	75,689		$	279,759	$	5,011,878
Allowance for loan losses
Evaluated for impairment
Individually	$	0		$	0		$	25,100		$	114,600		$	0		$	0	$	139,700
Collectively		712,902			2,152,678			1,342,928			308,222			75,689			279,759		4,872,178
Total	$	712,902		$	2,152,678		$	1,368,028		$	422,822		$	75,689		$	279,759	$	5,011,878
Loans evaluated for impairment
Individually	$	286,436		$	2,551,748		$	1,419,808		$	234,004		$	0				$	4,491,996
Collectively		64,904,688			175,654,794			161,340,465			44,486,262			7,241,224					453,627,433
Total	$	65,191,124		$	178,206,542		$	162,760,273		$	44,720,266		$	7,241,224				$	458,119,429

As of or for the year ended December 31, 2014
							Residential			Residential
	Commercial			Commercial			Real Estate			Real Estate
	& Industrial			Real Estate			1st Lien			Jr Lien			Consumer			Unallocated			Total
Allowance for loan losses
Beginning balance	$	516,382		$	2,143,398		$	1,452,184		$	366,471		$	105,279		$	271,201		$	4,854,915
Charge-offs		(153,329	)		(167,841	)		(58,904	)		(51,389	)		(112,376	)		0			(543,839	)
Recoveries		6,249			0			14,543			240			33,766			0			54,798
Provision (credit)		277,417			336,379			(137,057	)		5,777			92,150			(34,666	)		540,000
Ending balance	$	646,719		$	2,311,936		$	1,270,766		$	321,099		$	118,819		$	236,535		$	4,905,874
Allowance for loan losses
Evaluated for impairment
Individually	$	0		$	34,400		$	43,400		$	0		$	0		$	0		$	77,800
Collectively		646,719			2,277,536			1,227,366			321,099			118,819			236,535			4,828,074
Total	$	646,719		$	2,311,936		$	1,270,766		$	321,099		$	118,819		$	236,535		$	4,905,874
Loans evaluated for impairment
Individually	$	390,605		$	1,930,993		$	721,241		$	328,889		$	0					$	3,371,728
Collectively		63,999,615			164,680,837			163,244,883			44,472,594			8,035,298						444,433,227
Total	$	64,390,220		$	166,611,830		$	163,966,124		$	44,801,483		$	8,035,298					$	447,804,955

Impaired loans by segment

	As of December 31, 2015						2015
			Unpaid				Average
	Recorded		Principal		Related		Recorded
	Investment		Balance		Allowance		Investment
With an allowance recorded
Commercial & industrial	$	0	$	0	$	0	$	37,359
Commercial real estate		0		0		0		40,902
Residential real estate - 1st lien		173,788		182,251		25,100		228,273
Residential real estate - Jr lien		234,004		284,227		114,600		155,207
		407,792		466,478		139,700		461,741
With no related allowance recorded
Commercial & industrial		286,436		366,387				446,817
Commercial real estate		2,551,748		2,776,729				2,151,713
Residential real estate - 1st lien		1,246,020		1,460,402				973,572
Residential real estate - Jr lien		0		0				113,964
		4,084,204		4,603,518				3,686,066
Total	$	4,491,996	$	5,069,996	$	139,700	$	4,147,807

	As of December 31, 2014						2014
			Unpaid				Average
	Recorded		Principal		Related		Recorded
	Investment		Balance		Allowance		Investment
With an allowance recorded
Commercial & industrial	$	0	$	0	$	0	$	158,690
Commercial real estate		204,511		220,981		34,400		280,104
Residential real estate - 1st lien		115,108		144,708		43,400		294,807
Residential real estate - Jr lien		0		0		0		149,772
		319,619		365,689		77,800		883,373
With no related allowance recorded
Commercial & industrial		390,605		424,598				507,232
Commercial real estate		1,726,482		1,689,772				1,294,710
Residential real estate - 1st lien		606,133		875,841				971,542
Residential real estate - Jr lien		328,889		390,260				238,826
		3,052,109		3,380,471				3,012,310
Total	$	3,371,728	$	3,746,160	$	77,800	$	3,895,683

Risk ratings

As of December 31, 2015
					Residential		Residential
	Commercial		Commercial		Real Estate		Real Estate
	& Industrial		Real Estate		1st Lien		Jr Lien		Consumer		Total
Group A	$	59,764,081	$	168,326,527	$	158,834,849	$	44,041,594	$	7,241,224	$	438,208,275
Group B		4,724,729		4,529,493		599,516		212,508		0		10,066,246
Group C		702,314		5,350,522		3,325,908		466,164		0		9,844,908
Total	$	65,191,124	$	178,206,542	$	162,760,273	$	44,720,266	$	7,241,224	$	458,119,429

As of December 31, 2014
					Residential		Residential
	Commercial		Commercial		Real Estate		Real Estate
	& Industrial		Real Estate		1st Lien		Jr Lien		Consumer		Total
Group A	$	61,201,586	$	157,767,641	$	160,912,689	$	44,018,956	$	8,035,298	$	431,936,170
Group B		2,316,908		3,280,904		228,148		251,822		0		6,077,782
Group C		871,726		5,563,285		2,825,287		530,705		0		9,791,003
Total	$	64,390,220	$	166,611,830	$	163,966,124	$	44,801,483	$	8,035,298	$	447,804,955

Loans modified as TDRs

	Year ended December 31, 2015
			Pre-		Post-
			Modification		Modification
			Outstanding		Outstanding
	Number of		Recorded		Recorded
	Contracts		Investment		Investment
Commercial & industrial		2	$	199,134	$	204,142
Commercial real estate		3		581,431		616,438
Residential real estate - 1st lien		12		1,229,100		1,303,228
Residential real estate - Jr lien		2		117,746		121,672
Total		19	$	2,127,411	$	2,245,480

	Year ended December 31, 2014
			Pre-		Post-
			Modification		Modification
			Outstanding		Outstanding
	Number of		Recorded		Recorded
	Contracts		Investment		Investment
Commercial real estate		1	$	301,823	$	301,823
Residential real estate - 1st lien		11		1,294,709		1,332,336
Total		12	$	1,596,532	$	1,634,159

TDRs payment default

Year ended December 31, 2015

	Number of		Recorded
	Contracts		Investment
Commercial real estate		1	$	149,514
Residential real estate - 1st lien		4		286,803
Residential real estate - Jr lien		1		69,828
Total		6	$	506,145

Year ended December 31, 2014

	Number of		Recorded
	Contracts		Investment
Residential real estate - 1st lien		2	$	137,830