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

3 Months Ended

Mar. 31, 2016

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

Composition of net loans

	March 31,			December 31,			March 31,
	2016			2015			2015
Commercial & industrial	$	63,540,340		$	65,191,124		$	67,447,337
Commercial real estate		178,205,320			178,206,542			171,453,104
Residential real estate - 1st lien		162,594,375			162,760,273			161,594,311
Residential real estate - Jr lien		43,917,725			44,720,266			44,678,956
Consumer		6,790,425			7,241,224			7,399,886
		455,048,185			458,119,429			452,573,594
Deduct (add):
Allowance for loan losses		5,109,488			5,011,878			5,003,049
Deferred net loan costs		(315,050	)		(316,491	)		(303,949	)
		4,794,438			4,695,387			4,699,100
Net Loans	$	450,253,747		$	453,424,042		$	447,874,494

Past due loans by segment

													90 Days or
			90 Days		Total						Non-Accrual		More
March 31, 2016	30-89 Days		or More		Past Due		Current		Total Loans		Loans		and Accruing
Commercial & industrial	$	37,333	$	204,354	$	241,687	$	63,298,653	$	63,540,340	$	256,456	$	0
Commercial real estate		3,825,884		428,545		4,254,429		173,950,891		178,205,320		966,071		19,810
Residential real estate
- 1st lien		3,950,062		991,614		4,941,676		157,652,699		162,594,375		1,467,171		764,031
- Jr lien		228,117		122,183		350,300		43,567,425		43,917,725		377,911		122,183
Consumer		152,546		0		152,546		6,637,879		6,790,425		0		0
Total	$	8,193,942	$	1,746,696	$	9,940,638	$	445,107,547	$	455,048,185	$	3,067,609	$	906,024

													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
March 31, 2015	30-89 Days		or More		Past Due		Current		Total Loans		Loans		and Accruing
Commercial & industrial	$	368,737	$	385,212	$	753,949	$	66,693,388	$	67,447,337	$	945,226	$	0
Commercial real estate		840,817		5,313		846,130		170,606,974		171,453,104		2,174,472		5,313
Residential real estate
- 1st lien		4,663,341		681,381		5,344,722		156,249,589		161,594,311		1,420,371		316,165
- Jr lien		420,073		13,375		433,448		44,245,508		44,678,956		382,451		13,375
Consumer		72,479		7,580		80,059		7,319,827		7,399,886		0		7,580
Total	$	6,365,447	$	1,092,861	$	7,458,308	$	445,115,286	$	452,573,594	$	4,922,520	$	342,433

Changes in the allowance for loan losses

As of or for the three months ended March 31, 2016

						Residential			Residential
	Commercial			Commercial		Real Estate			Real Estate
	& Industrial			Real Estate		1st Lien			Jr Lien		Consumer			Unallocated			Total
Allowance for loan losses
Beginning balance	$	712,902		$	2,152,678	$	1,368,028		$	422,822	$	75,689		$	279,759		$	5,011,878
Charge-offs		(10,836	)		0		(312	)		0		(16,675	)		0			(27,823	)
Recoveries		19,295			0		312			60		5,766			0			25,433
Provision (credit)		9,014			142,625		(29,101	)		143		(6,324	)		(16,357	)		100,000
Ending balance	$	730,375		$	2,295,303	$	1,338,927		$	423,025	$	58,456		$	263,402		$	5,109,488
Allowance for loan losses
Evaluated for impairment
Individually	$	0		$	0	$	0		$	117,700	$	0		$	0		$	117,700
Collectively		730,375			2,295,303		1,338,927			305,325		58,456			263,402			4,991,788
Total	$	730,375		$	2,295,303	$	1,338,927		$	423,025	$	58,456		$	263,402		$	5,109,488
Loans evaluated for impairment
Individually	$	204,354		$	907,309	$	717,673		$	231,591	$	0					$	2,060,927
Collectively		63,335,986			177,298,011		161,876,702			43,686,134		6,790,425						452,987,258
Total	$	63,540,340		$	178,205,320	$	162,594,375		$	43,917,725	$	6,790,425					$	455,048,185

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 three months ended March 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		(35,059	)		0		(15,874	)		(20,199	)		(5,290	)		0			(76,422	)
Recoveries		5,607			0		6,042			60			11,888			0			23,597
Provision (credit)		133,224			13,175		61,083			20,447			(39,333	)		(38,596	)		150,000
Ending balance	$	750,491		$	2,325,111	$	1,322,017		$	321,407		$	86,084		$	197,939		$	5,003,049
Allowance for loan losses
Evaluated for impairment
Individually	$	70,200		$	0	$	59,100		$	10,900		$	0		$	0		$	140,200
Collectively		680,291			2,325,111		1,262,917			310,507			86,084			197,939			4,862,849
Total	$	750,491		$	2,325,111	$	1,322,017		$	321,407		$	86,084		$	197,939		$	5,003,049
Loans evaluated for impairment
Individually	$	702,732		$	2,107,787	$	820,565		$	308,036		$	0					$	3,939,120
Collectively		66,744,605			169,345,317		160,773,746			44,370,920			7,399,886						448,634,474
Total	$	67,447,337		$	171,453,104	$	161,594,311		$	44,678,956		$	7,399,886					$	452,573,594

Impaired loans by segment

	As of March 31, 2016
			Unpaid				Average
	Recorded		Principal		Related		Recorded
	Investment		Balance		Allowance		Investment(1)
With an allowance recorded
Residential real estate - 1st lien	$	0	$	0	$	0	$	86,894
Residential real estate - Jr lien		231,591		284,287		117,700		232,798
		231,591		284,287		117,700		319,692
With no related allowance recorded
Commercial & industrial		204,354		272,017				245,395
Commercial real estate		907,309		957,229				1,729,529
Residential real estate - 1st lien		717,673		803,505				981,847
		1,829,336		2,032,751				2,956,771
Total	$	2,060,927	$	2,317,038	$	117,700	$	3,276,463

(1) For the three months ended March 31, 2016

	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 March 31, 2015
			Unpaid				Average
	Recorded		Principal		Related		Recorded
	Investment		Balance		Allowance		Investment(1)
With an allowance recorded
Commercial & industrial	$	94,855	$	94,855	$	70,200	$	47,428
Commercial real estate		0		0		0		102,256
Residential real estate - 1st lien		355,885		383,523		59,100		235,497
Residential real estate - Jr lien		67,106		76,631		10,900		33,553
	$	517,846	$	555,009	$	140,200	$	418,734
With no related allowance recorded
Commercial & industrial	$	607,877	$	657,443			$	499,241
Commercial real estate		2,107,787		2,296,957				1,917,135
Residential real estate - 1st lien		464,680		531,386				535,407
Residential real estate - Jr lien		240,930		284,202				284,910
	$	3,421,274	$	3,769,988			$	3,236,693
Total	$	3,939,120	$	4,324,997	$	140,200	$	3,655,427

Risk ratings

As of March 31, 2016

					Residential		Residential
	Commercial		Commercial		Real Estate		Real Estate
	& Industrial		Real Estate		1st Lien		Jr Lien		Consumer		Total
Group A	$	58,289,285	$	165,816,389	$	159,255,456	$	43,197,130	$	6,790,425	$	433,348,685
Group B		4,448,662		4,638,741		593,394		184,734		0		9,865,531
Group C		802,393		7,750,190		2,745,525		535,861		0		11,833,969
Total	$	63,540,340	$	178,205,320	$	162,594,375	$	43,917,725	$	6,790,425	$	455,048,185

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

March 31, 2015

					Residential		Residential
	Commercial		Commercial		Real Estate		Real Estate
	& Industrial		Real Estate		1st Lien		Jr Lien		Consumer		Total
Group A	$	63,693,155	$	160,845,487	$	158,579,882	$	43,991,054	$	7,392,306	$	434,501,884
Group B		2,900,660		4,873,360		233,858		269,395		0		8,277,273
Group C		853,522		5,734,257		2,780,571		418,507		7,580		9,794,437
Total	$	67,447,337	$	171,453,104	$	161,594,311	$	44,678,956	$	7,399,886	$	452,573,594

Loans modified as TDRs

	Three months ended March 31, 2016
			Pre-		Post-
			Modification		Modification
			Outstanding		Outstanding
	Number of		Recorded		Recorded
	Contracts		Investment		Investment
Residential real estate - 1st lien		5	$	395,236	$	412,923
Residential real estate - Jr lien		1		10,261		10,340
Total		6	$	405,497	$	423,263

	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

	Three months ended March 31, 2015
			Pre-		Post-
			Modification		Modification
			Outstanding		Outstanding
	Number of		Recorded		Recorded
	Contracts		Investment		Investment
Residential real estate - 1st lien		5	$	344,329	$	360,905
Residential real estate - Jr lien		2		117,745		121,673
Total		7	$	462,074	$	482,578

TDRs payment default

Twelve months ended March 31, 2016

	Number of		Recorded
	Contracts		Investment
Commercial		1	$	79,158
Commercial real estate		1		146,519
Residential real estate - 1st lien		1		59,838
Total		3	$	285,515

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

Twelve months ended March 31, 2015

	Number of		Recorded
	Contracts		Investment
Residential real estate - 1st lien		4	$	306,874