The First Bancorp, Inc. (FNLC) 10-Q 6 May 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	May. 02, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	First Bancorp, Inc /ME/
Entity Central Index Key	765,207
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		10,776,337
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Assets
Cash and cash equivalents	$ 14,533	$ 14,299	$ 13,855
Interest bearing deposits in other banks	6,372	4,013	336
Securities available for sale	216,725	223,039	156,317
Securities to be held to maturity (fair value of $243,337,000 at March 31, 2016, $243,123,000 at December 31, 2015 and $267,247,000 at March 31, 2015)	236,611	240,023	262,455
Restricted equity securities, at cost	13,875	14,257	13,912
Loans held for sale	224	349	0
Loans	1,004,942	988,638	939,169
Less allowance for loan losses	10,219	9,916	10,196
Total loans	994,723	978,722	928,973
Accrued interest receivable	6,271	4,912	5,724
Premises and equipment, net	21,392	21,816	22,270
Other real estate owned	1,592	1,532	2,899
Goodwill	29,805	29,805	29,805
Other assets	32,558	32,043	22,286
Total assets	1,574,681	1,564,810	1,458,832
Liabilities
Demand deposits	116,756	130,566	100,939
NOW deposits	240,112	242,638	199,099
Money market deposits	74,643	92,994	101,292
Savings deposits	205,218	206,009	167,338
Certificates of deposit	472,712	370,982	398,157
Total deposits	1,109,441	1,043,189	966,825
Borrowed funds – short term	151,399	222,323	167,437
Borrowed funds – long term	125,132	115,134	145,139
Other liabilities	17,164	16,666	15,915
Total liabilities	1,403,136	1,397,312	1,295,316
Shareholders' equity
Common stock, one cent par value per share	108	108	107
Additional paid-in capital	60,064	59,862	59,286
Retained earnings	108,677	106,673	101,736
Accumulated other comprehensive income (loss)
Net unrealized gain on securities available for sale	2,975	1,123	2,579
Net unrealized loss on securities transferred from available for sale to held to maturity	(123)	(112)	(67)
Net unrealized loss on postretirement benefit costs	(156)	(156)	(125)
Total shareholders' equity	171,545	167,498	163,516
Total liabilities & shareholders' equity	$ 1,574,681	$ 1,564,810	$ 1,458,832
Common Stock
Number of shares authorized (shares)	18,000,000	18,000,000	18,000,000
Number of shares issued (shares)	10,775,307	10,753,855	10,734,419
Number of shares outstanding (shares)	10,775,307	10,753,855	10,734,419
Book value per common share (usd per share)	$ 15.92	$ 15.58	$ 15.23
Tangible book value per common share (usd per share)	$ 13.13	$ 12.78	$ 12.43

Consolidated Balance Sheets (U3

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Assets
Securities to be held to maturity	$ 243,337	$ 243,123	$ 267,247
Shareholders' equity
Common stock, par value per share (usd per share)	$ 0.01	$ 0.01	$ 0.01

Consolidated Statements of Inco

Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest income
Interest and fees on loans (includes tax-exempt income of $148,000 for March 31, 2016 and $141,000 for March 31, 2015)	$ 9,734	$ 8,855
Interest on deposits with other banks	3	5
Interest and dividends on investments (includes tax-exempt income of $1,237,000 for March 31, 2016 and $1,312,000 for March 31, 2015)	3,539	3,505
Total interest income	13,276	12,365
Interest expense
Interest on deposits	1,353	1,443
Interest on borrowed funds	1,194	1,220
Total interest expense	2,547	2,663
Net interest income	10,729	9,702
Provision for loan losses	375	500
Net interest income after provision for loan losses	10,354	9,202
Non-interest income
Investment management and fiduciary income	563	541
Service charges on deposit accounts	574	579
Net securities gains	536	1,395
Mortgage origination and servicing income, net of amortization	129	197
Other operating income	1,162	946
Total non-interest income	2,964	3,658
Non-interest expense
Salaries and employee benefits	3,598	3,720
Occupancy expense	578	645
Furniture and equipment expense	796	770
FDIC insurance premiums	214	230
Amortization of identified intangibles	11	25
Other operating expense	2,003	1,875
Total non-interest expense	7,200	7,265
Income before income taxes	6,118	5,595
Income tax expense	1,615	1,420
NET INCOME	$ 4,503	$ 4,175
Basic earnings per common share (usd per share)	$ 0.42	$ 0.39
Diluted earnings per common share (usd per share)	$ 0.42	$ 0.39
Other comprehensive income (loss) net of tax
Net unrealized gain on securities available for sale	$ 1,852	$ 57
Net unrealized loss on securities transferred from available for sale to held to maturity, net of amortization	(11)	(19)
Other comprehensive income	1,841	38
Comprehensive income	$ 6,344	$ 4,213

Consolidated Statements of Inc5

Consolidated Statements of Income and Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Interest and fees on loans (tax-exempt income)	$ 148	$ 141
Interest and dividends on investments (tax-exempt income)	$ 1,237	$ 1,312

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common stock and additional paid-in capital	Retained earnings	Accumulated other comprehensive income
Balance, beginning balance at Dec. 31, 2014	$ 161,554	$ 59,389	$ 99,816	$ 2,349
Balance, beginning period (in shares) at Dec. 31, 2014		10,724,359
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,175		4,175
Net unrealized gain on securities available for sale, net of tax	57			57
Net unrealized loss on securities transferred from available for sale to held to maturity, net of tax	(19)			(19)
Comprehensive income	4,213		4,175	38
Cash dividends declared	(2,255)		(2,255)
Equity compensation expense	74	$ 74
Payment to repurchase common stock	(180)	$ (180)
Payment for repurchase of common stock (in shares)		(10,138)
Issuance of restricted stock (in shares)		13,650
Proceeds from sale of common stock	110	$ 110
Proceeds from sale of common stock (in shares)		6,548
Balance, ending period at Mar. 31, 2015	$ 163,516	$ 59,393	101,736	2,387
Balance, ending balance (in shares) at Mar. 31, 2015	10,734,419	10,734,419
Balance, beginning balance at Dec. 31, 2015	$ 167,498	$ 59,970	106,673	855
Balance, beginning period (in shares) at Dec. 31, 2015	10,753,855	10,753,855
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 4,503		4,503
Net unrealized gain on securities available for sale, net of tax	1,852			1,852
Net unrealized loss on securities transferred from available for sale to held to maturity, net of tax	(11)			(11)
Comprehensive income	6,344		4,503	1,841
Cash dividends declared	(2,370)		(2,370)
Equity compensation expense	49	$ 49
Payment to repurchase common stock	(129)		(129)
Payment for repurchase of common stock (in shares)		(6,936)
Tax benefit from vesting of restricted stock	32	$ 32
Issuance of restricted stock (in shares)		21,847
Proceeds from sale of common stock	121	$ 121
Proceeds from sale of common stock (in shares)		6,541
Balance, ending period at Mar. 31, 2016	$ 171,545	$ 60,172	$ 108,677	$ 2,696
Balance, ending balance (in shares) at Mar. 31, 2016	10,775,307	10,775,307

Consolidated Statements of Cha7

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (usd per share)	$ 0.22	$ 0.21

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net income	$ 4,503	$ 4,175
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation	432	425
Change in deferred taxes	(111)	88
Provision for loan losses	375	500
Loans originated for resale	(4,560)	(5,489)
Proceeds from sales and transfers of loans	4,799	5,599
Net gain on sales of loans	(114)	(110)
Net gain on sale or call of securities	(536)	(1,395)
Net amortization of premiums on investments	619	159
Net gain on sale of other real estate owned	(7)	(43)
Equity compensation expense	49	74
Tax benefit from vesting of restricted stock	32	0
Net increase in other assets and accrued interest	(1,944)	(1,301)
Net increase (decrease) in other liabilities	(388)	129
Amortization of investment in limited partnership	49	66
Net acquisition amortization	11	25
Net cash provided by operating activities	3,209	2,902
Cash flows from investing activities
(Increase) decrease in interest-bearing deposits in other banks	(2,359)	3,223
Proceeds from sales of securities available for sale	8,868	35,465
Proceeds from maturities, payments and calls of securities available for sale	8,852	5,991
Proceeds from maturities, payments and calls of securities to be held to maturity	6,228	18,875
Proceeds from sales of other real estate owned	201	1,309
Purchases of securities available for sale	(8,672)	(11,255)
Purchases of securities to be held to maturity	(2,785)	(5,344)
Redemption of restricted equity securities	382	0
Net increase in loans	(16,630)	(22,633)
Capital expenditures	(8)	(76)
Net cash provided (used) by investing activities	(5,923)	25,555
Cash flows from financing activities
Net decrease in demand, savings, and money market accounts	(35,478)	(8,650)
Net increase (decrease) in certificates of deposit	101,730	(49,344)
Net decrease in short-term borrowings	(70,926)	(22,340)
Advances on long-term borrowings	10,000	55,000
Payment to repurchase common stock	(129)	(180)
Proceeds from sale of common stock	121	110
Dividends paid	(2,370)	(2,255)
Net cash provided (used) by financing activities	2,948	(27,659)
Net increase in cash and cash equivalents	234	798
Cash and cash equivalents at beginning of period	14,299	13,057
Cash and cash equivalents at end of period	14,533	13,855
Interest paid	2,487	2,621
Income taxes paid	0	0
Non-cash transactions
Net transfer from loans to other real estate owned	$ 254	$ 380

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The First Bancorp, Inc. ("the Company") is a financial holding company that owns all of the common stock of First National Bank ("the Bank"). The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of Management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. All significant intercompany transactions and balances are eliminated in consolidation. The income reported for the 2016 period is not necessarily indicative of the results that may be expected for the year ending December 31, 2016 . For further information, refer to the consolidated financial statements and notes included in the Company's annual report on Form 10-K for the year ended December 31, 2015 . Subsequent Events Events occurring subsequent to March 31, 2016 , have been evaluated as to their potential impact to the financial statements.

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The following table summarizes the amortized cost and estimated fair value of investment securities at March 31, 2016 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale Mortgage-backed securities $ 190,025,000 $ 3,837,000 $ (205,000 ) $ 193,657,000 State and political subdivisions 18,975,000 948,000 (19,000 ) 19,904,000 Other equity securities 3,148,000 39,000 (23,000 ) 3,164,000 $ 212,148,000 $ 4,824,000 $ (247,000 ) $ 216,725,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 68,009,000 $ 37,000 $ (107,000 ) $ 67,939,000 Mortgage-backed securities 39,828,000 1,675,000 (35,000 ) 41,468,000 State and political subdivisions 124,474,000 5,156,000 — 129,630,000 Corporate securities 4,300,000 — — 4,300,000 $ 236,611,000 $ 6,868,000 $ (142,000 ) $ 243,337,000 Restricted equity securities Federal Home Loan Bank Stock $ 12,838,000 $ — $ — $ 12,838,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 13,875,000 $ — $ — $ 13,875,000 The following table summarizes the amortized cost and estimated fair value of investment securities at December 31, 2015 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale Mortgage-backed securities $ 194,563,000 $ 1,509,000 $ (962,000 ) $ 195,110,000 State and political subdivisions 23,367,000 1,201,000 (62,000 ) 24,506,000 Other equity securities 3,381,000 48,000 (6,000 ) 3,423,000 $ 221,311,000 $ 2,758,000 $ (1,030,000 ) $ 223,039,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 71,000,000 $ 40,000 $ (2,284,000 ) $ 68,756,000 Mortgage-backed securities 42,193,000 1,305,000 (136,000 ) 43,362,000 State and political subdivisions 122,530,000 4,200,000 (25,000 ) 126,705,000 Corporate securities 4,300,000 — — 4,300,000 $ 240,023,000 $ 5,545,000 $ (2,445,000 ) $ 243,123,000 Restricted equity securities Federal Home Loan Bank Stock $ 13,220,000 $ — $ — $ 13,220,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 14,257,000 $ — $ — $ 14,257,000 The following table summarizes the amortized cost and estimated fair value of investment securities at March 31, 2015 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale Mortgage-backed securities $ 124,969,000 $ 2,790,000 $ (142,000 ) $ 127,617,000 State and political subdivisions 24,384,000 1,328,000 (114,000 ) 25,598,000 Other equity securities 2,997,000 105,000 — 3,102,000 $ 152,350,000 $ 4,223,000 $ (256,000 ) $ 156,317,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 82,974,000 $ 108,000 $ (912,000 ) $ 82,170,000 Mortgage-backed securities 53,228,000 2,030,000 (116,000 ) 55,142,000 State and political subdivisions 125,953,000 3,811,000 (129,000 ) 129,635,000 Corporate securities 300,000 — — 300,000 $ 262,455,000 $ 5,949,000 $ (1,157,000 ) $ 267,247,000 Restricted equity securities Federal Home Loan Bank Stock $ 12,875,000 $ — $ — $ 12,875,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 13,912,000 $ — $ — $ 13,912,000 The following table summarizes the contractual maturities of investment securities at March 31, 2016 : Securities available for sale Securities to be held to maturity Amortized Cost Fair Value (Estimated) Amortized Cost Fair Value (Estimated) Due in 1 year or less $ 2,599,000 $ 2,633,000 $ 1,825,000 $ 1,847,000 Due in 1 to 5 years 3,321,000 3,390,000 6,709,000 6,925,000 Due in 5 to 10 years 19,222,000 19,946,000 56,874,000 58,932,000 Due after 10 years 183,858,000 187,592,000 171,203,000 175,633,000 Equity securities 3,148,000 3,164,000 — — $ 212,148,000 $ 216,725,000 $ 236,611,000 $ 243,337,000 The following table summarizes the contractual maturities of investment securities at December 31, 2015 : Securities available for sale Securities to be held to maturity Amortized Cost Fair Value (Estimated) Amortized Cost Fair Value (Estimated) Due in 1 year or less $ 527,000 $ 530,000 $ 1,814,000 $ 1,850,000 Due in 1 to 5 years 7,562,000 7,727,000 6,306,000 6,514,000 Due in 5 to 10 years 19,647,000 20,055,000 58,397,000 60,196,000 Due after 10 years 190,194,000 191,304,000 173,506,000 174,563,000 Equity securities 3,381,000 3,423,000 — — $ 221,311,000 $ 223,039,000 $ 240,023,000 $ 243,123,000 The following table summarizes the contractual maturities of investment securities at March 31, 2015 : Securities available for sale Securities to be held to maturity Amortized Cost Fair Value (Estimated) Amortized Cost Fair Value (Estimated) Due in 1 year or less $ 2,842,000 $ 2,858,000 $ 1,873,000 $ 1,899,000 Due in 1 to 5 years 14,950,000 15,231,000 12,050,000 12,241,000 Due in 5 to 10 years 17,746,000 18,110,000 47,898,000 49,930,000 Due after 10 years 113,815,000 117,016,000 200,634,000 203,177,000 Equity securities 2,997,000 3,102,000 — — $ 152,350,000 $ 156,317,000 $ 262,455,000 $ 267,247,000 At March 31, 2016 , securities with a fair value of $202,296,000 were pledged to secure public deposits, repurchase agreements, and for other purposes as required by law. This compares to securities with a fair value of $201,879,000 as of December 31, 2015 and $224,133,000 at March 31, 2015 , pledged for the same purposes. Gains and losses on the sale of securities available for sale are computed by subtracting the amortized cost at the time of sale from the security's selling price, net of accrued interest to be received. The following table shows securities gains and losses for the three months ended March 31, 2016 and 2015 : For the three months ended March 31, 2016 2015 Proceeds from sales of securities $ 8,868,000 $ 35,465,000 Gross realized gains 536,000 1,395,000 Gross realized losses — — Net gain $ 536,000 $ 1,395,000 Related income taxes $ 188,000 $ 488,000 Management reviews securities with unrealized losses for other than temporary impairment. As of March 31, 2016 , there were 34 securities with unrealized losses held in the Company's portfolio. These securities were temporarily impaired as a result of changes in interest rates reducing their fair value, of which 12 had been temporarily impaired for 12 months or more. At the present time, there have been no material changes in the credit quality of these securities resulting in other than temporary impairment, and in Management's opinion, no additional write-down for other-than-temporary impairment is warranted. Information regarding securities temporarily impaired as of March 31, 2016 is summarized below: Less than 12 months 12 months or more Total Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses U.S. Government-sponsored agencies $ — $ — $ 4,893,000 $ (107,000 ) $ 4,893,000 $ (107,000 ) Mortgage-backed securities 17,125,000 (170,000 ) 1,866,000 (70,000 ) 18,991,000 (240,000 ) State and political subdivisions 522,000 — 1,417,000 (19,000 ) 1,939,000 (19,000 ) Other equity securities 235,000 (6,000 ) 106,000 (17,000 ) 341,000 (23,000 ) $ 17,882,000 $ (176,000 ) $ 8,282,000 $ (213,000 ) $ 26,164,000 $ (389,000 ) As of December 31, 2015 , there were 78 securities with unrealized losses held in the Company's portfolio. These securities were temporarily impaired as a result of changes in interest rates reducing their fair value, of which 15 had been temporarily impaired for 12 months or more. Information regarding securities temporarily impaired as of December 31, 2015 is summarized below: Less than 12 months 12 months or more Total Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses U.S. Government-sponsored agencies $ 45,311,000 $ (1,469,000 ) $ 17,185,000 $ (815,000 ) $ 62,496,000 $ (2,284,000 ) Mortgage-backed securities 120,915,000 (1,027,000 ) 910,000 (71,000 ) 121,825,000 (1,098,000 ) State and political subdivisions 2,528,000 (24,000 ) 2,901,000 (63,000 ) 5,429,000 (87,000 ) Other equity securities 64,000 (5,000 ) 52,000 (1,000 ) 116,000 (6,000 ) $ 168,818,000 $ (2,525,000 ) $ 21,048,000 $ (950,000 ) $ 189,866,000 $ (3,475,000 ) As of March 31, 2015 , there were 55 securities with unrealized losses held in the Company's portfolio. These securities were temporarily impaired as a result of changes in interest rates reducing their fair value, of which five had been temporarily impaired for 12 months or more. Information regarding securities temporarily impaired as of March 31, 2015 is summarized below: Less than 12 months 12 months or more Total Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses U.S. Government-sponsored agencies $ 36,459,000 $ (595,000 ) $ 10,903,000 $ (317,000 ) $ 47,362,000 $ (912,000 ) Mortgage-backed securities 20,634,000 (256,000 ) 65,000 (2,000 ) 20,699,000 (258,000 ) State and political subdivisions 10,390,000 (201,000 ) 1,641,000 (42,000 ) 12,031,000 (243,000 ) $ 67,483,000 $ (1,052,000 ) $ 12,609,000 $ (361,000 ) $ 80,092,000 $ (1,413,000 ) During the third quarter of 2014, the Company transferred securities with a total amortized cost of $89,780,000 with a corresponding fair value of $89,757,000 from available for sale to held to maturity. The net unrealized loss, net of taxes, on these securities at the date of the transfer was $15,000 . The net unrealized holding loss at the time of transfer continues to be reported in accumulated other comprehensive income (loss), net of tax and is amortized over the remaining lives of the securities as an adjustment of the yield. The amortization of the net unrealized loss reported in accumulated other comprehensive income (loss) will offset the effect on interest income of the discount for the transferred securities. The remaining unamortized balance of the net unrealized losses for the securities transferred from available for sale to held to maturity was $123,000 at March 31, 2016 . These securities were transferred as a part of the Company's overall investment and balance sheet strategies. The Bank is a member of the Federal Home Loan Bank ("FHLB") of Boston, a cooperatively owned wholesale bank for housing and finance in the six New England States. As a requirement of membership in the FHLB, the Bank must own a minimum required amount of FHLB stock, calculated periodically based primarily on its level of borrowings from the FHLB. The Bank uses the FHLB for much of its wholesale funding needs. As of March 31, 2016 and 2015 , and December 31, 2015 , the Bank's investment in FHLB stock totaled $12,838,000 , $12,875,000 and $13,220,000 , respectively. FHLB stock is a non-marketable equity security and therefore is reported at cost, which equals par value. The Company periodically evaluates its investment in FHLB stock for impairment based on, among other factors, the capital adequacy of the FHLB and its overall financial condition. No impairment losses have been recorded through March 31, 2016 . The Bank will continue to monitor its investment in FHLB stock.

Loans

Loans	3 Months Ended
	Mar. 31, 2016
Loans and Leases Receivable Disclosure [Abstract]
Loans	Loans The following table shows the composition of the Company's loan portfolio as of March 31, 2016 and 2015 and at December 31, 2015 : March 31, 2016 December 31, 2015 March 31, 2015 Commercial Real estate $ 279,683,000 27.8 % $ 269,462,000 27.3 % $ 242,021,000 25.8 % Construction 20,138,000 2.0 % 24,881,000 2.5 % 34,683,000 3.7 % Other 133,629,000 13.3 % 128,341,000 13.0 % 115,455,000 12.3 % Municipal 19,042,000 1.9 % 19,751,000 2.0 % 26,277,000 2.8 % Residential Term 405,495,000 40.3 % 403,030,000 40.7 % 383,869,000 40.8 % Construction 11,754,000 1.2 % 8,451,000 0.9 % 13,036,000 1.4 % Home equity line of credit 110,249,000 11.0 % 110,202,000 11.1 % 104,100,000 11.1 % Consumer 24,952,000 2.5 % 24,520,000 2.5 % 19,728,000 2.1 % Total $ 1,004,942,000 100.0 % $ 988,638,000 100.0 % $ 939,169,000 100.0 % Loan balances include net deferred loan costs of $4,053,000 as of March 31, 2016 , $3,686,000 as of December 31, 2015 , and $2,933,000 as of March 31, 2015 . Pursuant to collateral agreements, qualifying first mortgage loans, which totaled $277,905,000 at March 31, 2016 , $279,463,000 at December 31, 2015 , and $240,760,000 at March 31, 2015 , were used to collateralize borrowings from the FHLB. In addition, commercial, construction and home equity loans totaling $258,369,000 at March 31, 2016 , $243,578,000 at December 31, 2015 , and $244,170,000 at March 31, 2015 , were used to collateralize a standby line of credit at the Federal Reserve Bank of Boston that is currently unused. For all loan classes, loans over 30 days past due are considered delinquent. Information on the past-due status of loans by class of financing receivable as of March 31, 2016 , is presented in the following table: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due All Past Due Current Total 90+ Days & Accruing Commercial Real estate $ 428,000 $ 376,000 $ 451,000 $ 1,255,000 $ 278,428,000 $ 279,683,000 $ — Construction — — 150,000 150,000 19,988,000 20,138,000 — Other 323,000 110,000 — 433,000 133,196,000 133,629,000 — Municipal — — — — 19,042,000 19,042,000 — Residential Term 2,321,000 62,000 2,400,000 4,783,000 400,712,000 405,495,000 411,000 Construction — — — — 11,754,000 11,754,000 — Home equity line of credit 718,000 122,000 543,000 1,383,000 108,866,000 110,249,000 — Consumer 176,000 26,000 41,000 243,000 24,709,000 24,952,000 41,000 Total $ 3,966,000 $ 696,000 $ 3,585,000 $ 8,247,000 $ 996,695,000 $ 1,004,942,000 $ 452,000 Information on the past-due status of loans by class of financing receivable as of December 31, 2015 , is presented in the following table: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due All Past Due Current Total 90+ Days & Accruing Commercial Real estate $ 603,000 $ — $ 281,000 $ 884,000 $ 268,578,000 $ 269,462,000 $ — Construction 35,000 — 238,000 273,000 24,608,000 24,881,000 — Other 303,000 — 25,000 328,000 128,013,000 128,341,000 25,000 Municipal — — — — 19,751,000 19,751,000 — Residential Term 450,000 2,098,000 2,639,000 5,187,000 397,843,000 403,030,000 100,000 Construction 368,000 — — 368,000 8,083,000 8,451,000 — Home equity line of credit 261,000 255,000 592,000 1,108,000 109,094,000 110,202,000 — Consumer 102,000 26,000 11,000 139,000 24,381,000 24,520,000 11,000 Total $ 2,122,000 $ 2,379,000 $ 3,786,000 $ 8,287,000 $ 980,351,000 $ 988,638,000 $ 136,000 Information on the past-due status of loans by class of financing receivable as of March 31, 2015 , is presented in the following table: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due All Past Due Current Total 90+ Days & Accruing Commercial Real estate $ 491,000 $ — $ 307,000 $ 798,000 $ 241,223,000 $ 242,021,000 $ — Construction 21,000 — 208,000 229,000 34,454,000 34,683,000 — Other 135,000 2,000 857,000 994,000 114,461,000 115,455,000 — Municipal — — — — 26,277,000 26,277,000 — Residential Term 3,948,000 1,438,000 2,857,000 8,243,000 375,626,000 383,869,000 100,000 Construction — — — — 13,036,000 13,036,000 — Home equity line of credit 488,000 105,000 864,000 1,457,000 102,643,000 104,100,000 — Consumer 136,000 16,000 85,000 237,000 19,491,000 19,728,000 84,000 Total $ 5,219,000 $ 1,561,000 $ 5,178,000 $ 11,958,000 $ 927,211,000 $ 939,169,000 $ 184,000 For all classes, loans are placed on non-accrual status when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement or when principal and interest is 90 days or more past due unless the loan is both well secured and in the process of collection (in which case the loan may continue to accrue interest in spite of its past due status). A loan is "well secured" if it is secured (1) by collateral in the form of liens on or pledges of real or personal property, including securities, that have a realizable value sufficient to discharge the debt (including accrued interest) in full, or (2) by the guarantee of a financially responsible party. A loan is "in the process of collection" if collection of the loan is proceeding in due course either (1) through legal action, including judgment enforcement procedures, or, (2) in appropriate circumstances, through collection efforts not involving legal action which are reasonably expected to result in repayment of the debt or in its restoration to a current status in the near future. Cash payments received on non-accrual loans, which are included in impaired loans, are applied to reduce the loan's principal balance until the remaining principal balance is deemed collectible, after which interest is recognized when collected. As a general rule, a loan may be restored to accrual status when payments are current for a substantial period of time, generally six months, and repayment of the remaining contractual amounts is expected or when it otherwise becomes well secured and in the process of collection. Information on nonaccrual loans as of March 31, 2016 and 2015 and at December 31, 2015 is presented in the following table: March 31, 2016 December 31, 2015 March 31, 2015 Commercial Real estate $ 920,000 $ 915,000 $ 1,609,000 Construction 180,000 238,000 208,000 Other 69,000 66,000 932,000 Municipal — — — Residential Term 4,677,000 5,260,000 6,514,000 Construction — — — Home equity line of credit 841,000 893,000 1,039,000 Consumer — — 25,000 Total $ 6,687,000 $ 7,372,000 $ 10,327,000 Impaired loans include troubled debt restructured and loans placed on non-accrual. These loans are measured at the present value of expected future cash flows discounted at the loan's effective interest rate or at the fair value of the collateral if the loan is collateral dependent. If the measure of an impaired loan is lower than the recorded investment in the loan and estimated selling costs, a specific reserve is established for the difference, or, in certain situations, if the measure of an impaired loan is lower than the recorded investment in the loan and estimated selling costs, the difference is written off. A breakdown of impaired loans by class of financing receivable as of and for the three months ended March 31, 2016 is presented in the following table: Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Recognized Interest Income With No Related Allowance Commercial Real estate $ 7,381,000 $ 7,712,000 $ — $ 7,221,000 $ 79,000 Construction 179,000 238,000 — 80,000 1,000 Other 1,097,000 1,137,000 — 1,121,000 8,000 Municipal — — — — — Residential Term 10,543,000 11,541,000 — 10,715,000 91,000 Construction — — — — — Home equity line of credit 1,344,000 2,023,000 — 1,353,000 8,000 Consumer — — — — — $ 20,544,000 $ 22,651,000 $ — $ 20,490,000 $ 187,000 With an Allowance Recorded Commercial Real estate $ 3,129,000 $ 3,213,000 $ 69,000 $ 3,399,000 $ 36,000 Construction 788,000 788,000 96,000 926,000 8,000 Other 88,000 96,000 21,000 80,000 — Municipal — — — — — Residential Term 3,997,000 4,265,000 384,000 3,995,000 43,000 Construction — — — — — Home equity line of credit 64,000 65,000 29,000 83,000 1,000 Consumer — — — — — $ 8,066,000 $ 8,427,000 $ 599,000 $ 8,483,000 $ 88,000 Total Commercial Real estate $ 10,510,000 $ 10,925,000 $ 69,000 $ 10,620,000 $ 115,000 Construction 967,000 1,026,000 96,000 1,006,000 9,000 Other 1,185,000 1,233,000 21,000 1,201,000 8,000 Municipal — — — — — Residential Term 14,540,000 15,806,000 384,000 14,710,000 134,000 Construction — — — — — Home equity line of credit 1,408,000 2,088,000 29,000 1,436,000 9,000 Consumer — — — — — $ 28,610,000 $ 31,078,000 $ 599,000 $ 28,973,000 $ 275,000 Substantially all interest income recognized on impaired loans for all classes of financing receivables was recognized on a cash basis as received. A breakdown of impaired loans by class of financing receivable as of and for the year ended December 31, 2015 is presented in the following table: Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Recognized Interest Income With No Related Allowance Commercial Real estate $ 7,173,000 $ 7,496,000 $ — $ 8,990,000 $ 301,000 Construction 30,000 30,000 — 3,000 1,000 Other 1,163,000 1,210,000 — 1,893,000 76,000 Municipal — — — — — Residential Term 11,122,000 12,157,000 — 10,480,000 415,000 Construction — — — — — Home equity line of credit 1,401,000 2,054,000 — 1,400,000 43,000 Consumer — — — 42,000 3,000 $ 20,889,000 $ 22,947,000 $ — $ 22,808,000 $ 839,000 With an Allowance Recorded Commercial Real estate $ 3,544,000 $ 3,627,000 $ 89,000 $ 3,066,000 $ 149,000 Construction 996,000 996,000 302,000 1,153,000 44,000 Other 71,000 77,000 8,000 256,000 5,000 Municipal — — — — — Residential Term 3,966,000 4,193,000 326,000 5,228,000 180,000 Construction — — — — — Home equity line of credit 65,000 66,000 29,000 187,000 3,000 Consumer — — — — — $ 8,642,000 $ 8,959,000 $ 754,000 $ 9,890,000 $ 381,000 Total Commercial Real estate $ 10,717,000 $ 11,123,000 $ 89,000 $ 12,056,000 $ 450,000 Construction 1,026,000 1,026,000 302,000 1,156,000 45,000 Other 1,234,000 1,287,000 8,000 2,149,000 81,000 Municipal — — — — — Residential Term 15,088,000 16,350,000 326,000 15,708,000 595,000 Construction — — — — — Home equity line of credit 1,466,000 2,120,000 29,000 1,587,000 46,000 Consumer — — — 42,000 3,000 $ 29,531,000 $ 31,906,000 $ 754,000 $ 32,698,000 $ 1,220,000 A breakdown of impaired loans by class of financing receivable as of and for the three months ended March 31, 2015 is presented in the following table: Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Recognized Interest Income With No Related Allowance Commercial Real estate $ 9,062,000 $ 9,496,000 $ — $ 10,899,000 $ 88,000 Construction — — — — — Other 2,305,000 2,411,000 — 2,465,000 16,000 Municipal — — — — — Residential Term 11,235,000 12,243,000 — 11,136,000 100,000 Construction — — — — — Home equity line of credit 1,363,000 1,958,000 — 1,281,000 8,000 Consumer 25,000 28,000 — 25,000 1,000 $ 23,990,000 $ 26,136,000 $ — $ 25,806,000 $ 213,000 With an Allowance Recorded Commercial Real estate $ 3,643,000 $ 3,955,000 $ 248,000 $ 1,996,000 $ 32,000 Construction 1,380,000 1,380,000 396,000 1,372,000 13,000 Other 416,000 1,115,000 347,000 327,000 — Municipal — — — — — Residential Term 5,113,000 5,363,000 421,000 5,233,000 53,000 Construction — — — — — Home equity line of credit 291,000 295,000 24,000 387,000 — Consumer — — — — — $ 10,843,000 $ 12,108,000 $ 1,436,000 $ 9,315,000 $ 98,000 Total Commercial Real estate $ 12,705,000 $ 13,451,000 $ 248,000 $ 12,895,000 $ 120,000 Construction 1,380,000 1,380,000 396,000 1,372,000 13,000 Other 2,721,000 3,526,000 347,000 2,792,000 16,000 Municipal — — — — — Residential Term 16,348,000 17,606,000 421,000 16,369,000 153,000 Construction — — — — — Home equity line of credit 1,654,000 2,253,000 24,000 1,668,000 8,000 Consumer 25,000 28,000 — 25,000 1,000 $ 34,833,000 $ 38,244,000 $ 1,436,000 $ 35,121,000 $ 311,000 Troubled Debt Restructured A troubled debt restructured ("TDR") constitutes a restructuring of debt if the Company, for economic or legal reasons related to the borrower's financial difficulties, grants a concession to the borrower that it would not otherwise consider. To determine whether or not a loan should be classified as a TDR, Management evaluates a loan based upon the following criteria: • The borrower demonstrates financial difficulty; common indicators include past due status with bank obligations, substandard credit bureau reports, or an inability to refinance with another lender, and • The Company has granted a concession; common concession types include maturity date extension, interest rate adjustments to below market pricing, and deferment of payments. As of March 31, 2016 , the Company had 82 loans with a value of $23,628,000 that have been classified as TDRs. This compares to 84 loans with a value of $23,923,000 and 90 loans with a value of $26,524,000 classified as TDRs as of December 31, 2015 and March 31, 2015 , respectively. The impairment carried as a specific reserve in the allowance for loan losses is calculated by present valuing the expected cash flows on the loan at the original interest rate, or, for collateral-dependent loans, using the fair value of the collateral less costs to sell. The following table shows TDRs by class and the specific reserve as of March 31, 2016 : Number of Loans Balance Specific Reserves Commercial Real estate 14 $ 10,133,000 $ 65,000 Construction 1 788,000 96,000 Other 10 1,116,000 — Municipal — — — Residential Term 53 10,856,000 275,000 Construction — — — Home equity line of credit 4 735,000 — Consumer — — — 82 $ 23,628,000 $ 436,000 The following table shows TDRs by class and the specific reserve as of December 31, 2015 : Number of Loans Balance Specific Reserves Commercial Real estate 15 $ 10,350,000 $ 85,000 Construction 1 788,000 94,000 Other 11 1,168,000 1,000 Municipal — — — Residential Term 53 10,875,000 275,000 Construction — — — Home equity line of credit 4 742,000 — Consumer — — — 84 $ 23,923,000 $ 455,000 The following table shows TDRs by class and the specific reserve as of March 31, 2015 : Number of Loans Balance Specific Reserves Commercial Real estate 17 $ 11,831,000 $ 133,000 Construction 1 1,172,000 189,000 Other 13 1,789,000 — Municipal — — — Residential Term 54 10,917,000 351,000 Construction — — — Home equity line of credit 5 815,000 22,000 Consumer — — — 90 $ 26,524,000 $ 695,000 As of March 31, 2016 , six of the loans classified as TDRs with a total balance of $890,000 were more than 30 days past due. None of these loans had been placed on TDR status in the previous 12 months. The following table shows these TDRs by class and the associated specific reserves included in the allowance for loan losses as of March 31, 2016 : Number of Loans Balance Specific Reserves Commercial Real estate 1 $ 155,000 $ — Construction — — — Other — — — Municipal — — — Residential Term 5 735,000 46,000 Construction — — — Home equity line of credit — — — Consumer — — — 6 $ 890,000 $ 46,000 As of March 31, 2015 , eight of the loans classified as TDRs with a total balance of $1,121,000 were more than 30 days past due. None, of these loans had been placed on TDR status in the previous 12 months. The following table shows these TDRs by class and the associated specific reserves included in the allowance for loan losses as of March 31, 2015 : Number of Loans Balance Specific Reserves Commercial Real estate — $ — $ — Construction — — — Other — — — Municipal — — — Residential Term 7 920,000 — Construction — — — Home equity line of credit 1 201,000 22,000 Consumer — — — 8 $ 1,121,000 $ 22,000 For the three months ended March 31, 2016 and 2015, no loans were placed on TDR status. As of March 31, 2016 , Management is aware of six loans classified as TDRs that are involved in bankruptcy with an outstanding balance of $1,073,000 . There were also 12 loans with an outstanding balance of $1,703,000 that were classified as TDRs and on non-accrual status. Two loans with an outstanding balance of $215,000 , that were classified as TDRs, were in the process of foreclosure. Residential Mortgage Loans in Process of Foreclosure As of March 31, 2016 , there were 14 mortgage loans collateralized by residential real estate in the process of foreclosure with a total balance of $ 1,399,000 ; this compares to 16 mortgage loans collateralized by residential real estate in the process of foreclosure with a total balance of $1,677,000 as of March 31, 2015.

Allowance for Loan Losses

Allowance for Loan Losses	3 Months Ended
	Mar. 31, 2016
Receivables [Abstract]
Allowance for Loan Losses	Allowance for Loan Losses The Company provides for loan losses through the establishment of an allowance for loan losses which represents an estimated reserve for existing losses in the loan portfolio. A systematic methodology is used for determining the allowance that includes a quarterly review process, risk rating changes, and adjustments to the allowance. The loan portfolio is classified in eight classes and credit risk is evaluated separately in each class. The appropriate level of the allowance is evaluated continually based on a review of significant loans, with a particular emphasis on nonaccruing, past due, and other loans that may require special attention. Other factors include general conditions in local and national economies; loan portfolio composition and asset quality indicators; and internal factors such as changes in underwriting policies, credit administration practices, experience, ability and depth of lending management, among others. The allowance consists of four elements: (1) specific reserves for loans evaluated individually for impairment; (2) general reserves for each portfolio segment based on historical loan loss experience, (3) qualitative reserves judgmentally adjusted for local and national economic conditions, concentrations, portfolio composition, volume and severity of delinquencies and nonaccrual loans, trends of criticized and classified loans, changes in credit policies and underwriting standards, credit administration practices, and other factors as applicable for each portfolio segment; and (4) unallocated reserves. All outstanding loans are considered in evaluating the appropriateness of the allowance. A breakdown of the allowance for loan losses as of March 31, 2016 , December 31, 2015 , and March 31, 2015 , by class of financing receivable and allowance element, is presented in the following tables: As of March 31, 2016 Specific Reserves on Loans Evaluated Individually for Impairment General Reserves on Loans Based on Historical Loss Experience Reserves for Qualitative Factors Unallocated Reserves Total Reserves Commercial Real estate $ 69,000 $ 1,236,000 $ 2,219,000 $ — $ 3,524,000 Construction 96,000 89,000 160,000 — 345,000 Other 21,000 592,000 1,063,000 — 1,676,000 Municipal — — 17,000 — 17,000 Residential Term 384,000 630,000 460,000 — 1,474,000 Construction — 19,000 14,000 — 33,000 Home equity line of credit 29,000 502,000 374,000 — 905,000 Consumer — 413,000 241,000 — 654,000 Unallocated — — — 1,591,000 1,591,000 $ 599,000 $ 3,481,000 $ 4,548,000 $ 1,591,000 $ 10,219,000 As of December 31, 2015 Specific Reserves on Loans Evaluated Individually for Impairment General Reserves on Loans Based on Historical Loss Experience Reserves for Qualitative Factors Unallocated Reserves Total Reserves Commercial Real estate $ 89,000 $ 893,000 $ 2,138,000 $ — $ 3,120,000 Construction 302,000 82,000 196,000 — 580,000 Other 8,000 425,000 1,019,000 — 1,452,000 Municipal — — 17,000 — 17,000 Residential Term 326,000 613,000 452,000 — 1,391,000 Construction — 14,000 10,000 — 24,000 Home equity line of credit 29,000 500,000 364,000 — 893,000 Consumer — 331,000 235,000 — 566,000 Unallocated — — — 1,873,000 1,873,000 $ 754,000 $ 2,858,000 $ 4,431,000 $ 1,873,000 $ 9,916,000 As of March 31, 2015 Specific Reserves on Loans Evaluated Individually for Impairment General Reserves on Loans Based on Historical Loss Experience Reserves for Qualitative Factors Unallocated Reserves Total Reserves Commercial Real estate $ 248,000 $ 1,094,000 $ 1,775,000 $ — $ 3,117,000 Construction 396,000 157,000 254,000 — 807,000 Other 347,000 521,000 846,000 — 1,714,000 Municipal — — 16,000 — 16,000 Residential Term 421,000 298,000 389,000 — 1,108,000 Construction — 10,000 13,000 — 23,000 Home equity line of credit 24,000 716,000 304,000 — 1,044,000 Consumer — 318,000 208,000 — 526,000 Unallocated — — — 1,841,000 1,841,000 $ 1,436,000 $ 3,114,000 $ 3,805,000 $ 1,841,000 $ 10,196,000 Qualitative adjustment factors are taken into consideration when determining reserve estimates. These adjustment factors are based upon our evaluation of various current conditions, including those listed below. • General economic conditions. • Credit quality trends with emphasis on loan delinquencies, nonaccrual levels and classified loans. • Recent loss experience in particular segments of the portfolio. • Loan volumes and concentrations, including changes in mix. • Other factors, including changes in quality of the loan origination; loan policy changes; changes in credit risk management processes; Bank regulatory and external loan review examination results. The qualitative portion of the allowance for loan losses was 0.45% of related loans as of March 31, 2016 and December 31, 2015 . The qualitative portion increased $117,000 between December 31, 2015 and March 31, 2016 due to an increase in loans outstanding. The unallocated component of the allowance totaled $1,591,000 at March 31, 2016 , or 15.6% of the total reserve. This compares to $1,873,000 or 18.9% as of December 31, 2015 . Changes in various elements of the allowance caused the period-to-period decrease. Management feels the change in the unalloctaed is consistent with improvement in credit quality and the effect of loan portfolio growth. The allowance for loan losses as a percent of total loans stood at 1.02% as of March 31, 2016 . This compares to 1.00% of total loans as of December 31, 2015 and 1.09% of total loans as of March 31, 2015 . Commercial loans are comprised of three major classes, commercial real estate loans, commercial construction loans and other commercial loans. Commercial real estate is primarily comprised of loans to small businesses collateralized by owner-occupied real estate, while other commercial is primarily comprised of loans to small businesses collateralized by plant and equipment, commercial fishing vessels and gear, and limited inventory-based lending. Commercial real estate loans typically have a maximum loan-to-value of 80% based upon current appraisal information at the time the loan is made. Municipal loans are comprised of loans to municipalities in Maine for capitalized expenditures, construction projects or tax-anticipation notes. All municipal loans are considered general obligations of the municipality and as such are collateralized by the taxing ability of the municipality for repayment of debt. Construction, land and land development loans, both commercial and residential, comprise a small portion of the portfolio, and at 21.8% of capital are below the regulatory limit of 100.0% of capital at March 31, 2016 . Construction loans and non-owner-occupied commercial real estate loans are at 106.7% of total capital, below the regulatory limit of 300.0% of capital at March 31, 2016 . The process of establishing the allowance with respect to the commercial loan portfolio begins when a loan officer initially assigns each loan a risk rating, using established credit criteria. Approximately 50% of the outstanding loans and commitments are subject to review and validation annually by an independent consulting firm, as well as periodically by the Company's internal credit review function. The methodology employs Management's judgment as to the level of losses on existing loans based on internal review of the loan portfolio, including an analysis of a borrower's current financial position, and the consideration of current and anticipated economic conditions and their potential effects on specific borrowers and or lines of business. In determining the Company's ability to collect certain loans, Management also considers the fair value of underlying collateral. The risk rating system has eight levels, defined as follows: 1 Strong Credits rated "1" are characterized by borrowers fully responsible for the credit with excellent capacity to pay principal and interest. Loans rated "1" may be secured with acceptable forms of liquid collateral. 2 Above Average Credits rated "2" are characterized by borrowers that have better than average liquidity, capitalization, earnings and/or cash flow with a consistent record of solid financial performance. 3 Satisfactory Credits rated "3" are characterized by borrowers with favorable liquidity, profitability and financial condition with adequate cash flow to pay debt service. 4 Average Credits rated "4" are characterized by borrowers that present risk more than 1, 2 and 3 rated loans and merit an ordinary level of ongoing monitoring. Financial condition is on par or somewhat below industry averages while cash flow is generally adequate to meet debt service requirements. 5 Watch Credits rated "5" are characterized by borrowers that warrant greater monitoring due to financial condition or unresolved and identified risk factors. 6 Other Assets Especially Mentioned (OAEM) Loans in this category are currently protected but are potentially weak and constitute an undue and unwarranted credit risk, but not to the point of justifying a classification of substandard. OAEM have potential weaknesses which may, if not checked or corrected, weaken the asset or inadequately protect the Company's credit position at some future date. 7 Substandard Loans in this category are inadequately protected by the paying capacity of the borrower or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. Substandard loans are characterized by the distinct possibility that the Company may sustain some loss if the deficiencies are not corrected. 8 Doubtful Loans classified "Doubtful" have the same weaknesses as those classified substandard with the added characteristic that the weaknesses make collection or liquidation in full, based on currently existing facts, conditions, and values, highly questionable and improbable. The possibility of loss is high, but because of certain important and reasonably specific pending factors which may work to the advantage and strengthening of the asset, its classification as an estimated loss is deferred until its more exact status may be determined. The following table summarizes the risk ratings for the Company's commercial real estate, commercial construction, commercial other, and municipal loans as of March 31, 2016 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 6,000 $ — $ 990,000 $ — $ 996,000 2 Above Average 27,586,000 55,000 7,707,000 17,331,000 52,679,000 3 Satisfactory 59,080,000 2,898,000 31,629,000 1,711,000 95,318,000 4 Average 129,432,000 11,926,000 67,550,000 — 208,908,000 5 Watch 34,025,000 5,109,000 20,345,000 — 59,479,000 6 OAEM 9,821,000 — 2,490,000 — 12,311,000 7 Substandard 19,733,000 150,000 2,918,000 — 22,801,000 8 Doubtful — — — — — Total $ 279,683,000 $ 20,138,000 $ 133,629,000 $ 19,042,000 $ 452,492,000 The following table summarizes the risk ratings for the Company's commercial real estate, commercial construction, commercial other, and municipal loans as of December 31, 2015 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 6,000 $ — $ 1,256,000 $ — $ 1,262,000 2 Above Average 29,176,000 56,000 7,506,000 18,321,000 55,059,000 3 Satisfactory 52,821,000 2,057,000 28,787,000 1,430,000 85,095,000 4 Average 122,071,000 18,070,000 67,301,000 — 207,442,000 5 Watch 36,075,000 4,490,000 18,135,000 — 58,700,000 6 OAEM 9,742,000 — 2,410,000 — 12,152,000 7 Substandard 19,571,000 208,000 2,946,000 — 22,725,000 8 Doubtful — — — — — Total $ 269,462,000 $ 24,881,000 $ 128,341,000 $ 19,751,000 $ 442,435,000 The following table summarizes the risk ratings for the Company's commercial real estate, commercial construction, commercial other, and municipal loans as of March 31, 2015 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 11,000 $ — $ 344,000 $ — $ 355,000 2 Above Average 11,599,000 766,000 8,282,000 24,687,000 45,334,000 3 Satisfactory 52,828,000 2,227,000 24,758,000 1,590,000 81,403,000 4 Average 108,480,000 25,867,000 55,120,000 — 189,467,000 5 Watch 36,816,000 2,567,000 17,642,000 — 57,025,000 6 OAEM 9,670,000 2,509,000 1,669,000 — 13,848,000 7 Substandard 22,617,000 747,000 7,640,000 — 31,004,000 8 Doubtful — — — — — Total $ 242,021,000 $ 34,683,000 $ 115,455,000 $ 26,277,000 $ 418,436,000 Commercial loans are generally charged off when all or a portion of the principal amount is determined to be uncollectible. This determination is based on circumstances specific to a borrower including repayment ability, analysis of collateral and other factors as applicable. Residential loans are comprised of two classes: term loans, which include traditional amortizing home mortgages, and construction loans, which include loans for owner-occupied residential construction. Residential loans typically have a 75% to 80% loan to value based upon current appraisal information at the time the loan is made. Home equity loans and lines of credit are typically written to the same underwriting standards. Consumer loans are primarily amortizing loans to individuals collateralized by automobiles, pleasure craft and recreation vehicles, typically with a maximum loan to value of 80% to 90% of the purchase price of the collateral. Consumer loans also include a small amount of unsecured short-term time notes to individuals. Residential loans, consumer loans and home equity lines of credit are segregated into homogeneous pools with similar risk characteristics. Trends and current conditions are analyzed and historical loss experience is adjusted accordingly. Quantitative and qualitative adjustment factors for these segments are consistent with those for the commercial and municipal classes. Certain loans in the residential, home equity lines of credit and consumer classes identified as having the potential for further deterioration are analyzed individually to confirm impairment status, and to determine the need for a specific reserve; however there is no formal rating system used for these classes. Consumer loans greater than 120 days past due are generally charged off. Residential loans 90 days or more past due are placed on non-accrual status unless the loans are both well secured and in the process of collection. One- to four-family residential real estate loans and home equity loans are written down or charged-off no later than 180 days past due, or for residential real estate secured loans having a borrower in bankruptcy, within 60 days of receipt of notification of filing from the bankruptcy court, whichever is sooner. This is subject to completion of a current assessment of the value of the collateral with any outstanding loan balance in excess of the fair value of the property, less costs to sell, written down or charged-off. There were no changes to the Company's accounting policies or methodology used to estimate the allowance for loan losses during the three months ended March 31, 2016 . The following table presents allowance for loan losses activity by class for the three months ended March 31, 2016 , and allowance for loan loss balances by class and related loan balances by class as of March 31, 2016 : Commercial Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction For the three months ended March 31, 2016 Beginning balance $ 3,120,000 $ 580,000 $ 1,452,000 $ 17,000 $ 1,391,000 $ 24,000 $ 893,000 $ 566,000 $ 1,873,000 $ 9,916,000 Charge offs — 58,000 — — 20,000 — 49,000 63,000 — 190,000 Recoveries — — 20,000 — 65,000 — 1,000 32,000 — 118,000 Provision (credit) 404,000 (177,000 ) 204,000 — 38,000 9,000 60,000 119,000 (282,000 ) 375,000 Ending balance $ 3,524,000 $ 345,000 $ 1,676,000 $ 17,000 $ 1,474,000 $ 33,000 $ 905,000 $ 654,000 $ 1,591,000 $ 10,219,000 Allowance for loan losses as of March 31, 2016 Ending balance specifically evaluated for impairment $ 69,000 $ 96,000 $ 21,000 $ — $ 384,000 $ — $ 29,000 $ — $ — $ 599,000 Ending balance collectively evaluated for impairment $ 3,455,000 $ 249,000 $ 1,655,000 $ 17,000 $ 1,090,000 $ 33,000 $ 876,000 $ 654,000 $ 1,591,000 $ 9,620,000 Related loan balances as of March 31, 2016 Ending balance $ 279,683,000 $ 20,138,000 $ 133,629,000 $ 19,042,000 $ 405,495,000 $ 11,754,000 $ 110,249,000 $ 24,952,000 $ — $ 1,004,942,000 Ending balance specifically evaluated for impairment $ 10,510,000 $ 967,000 $ 1,185,000 $ — $ 14,540,000 $ — $ 1,408,000 $ — $ — $ 28,610,000 Ending balance collectively evaluated for impairment $ 269,173,000 $ 19,171,000 $ 132,444,000 $ 19,042,000 $ 390,955,000 $ 11,754,000 $ 108,841,000 $ 24,952,000 $ — $ 976,332,000 The following table presents allowance for loan losses activity by class for the year-ended December 31, 2015 and allowance for loan loss balances by class and related loan balances by class as of December 31, 2015 : Commercial Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction For the year ended December 31, 2015 Beginning balance $ 3,532,000 $ 823,000 $ 1,505,000 $ 15,000 $ 1,185,000 $ 20,000 $ 1,060,000 $ 542,000 $ 1,662,000 $ 10,344,000 Charge offs 280,000 9,000 732,000 — 420,000 — 582,000 350,000 — 2,373,000 Recoveries 2,000 1,000 88,000 — 152,000 — 31,000 121,000 — 395,000 Provision (credit) (134,000 ) (235,000 ) 591,000 2,000 474,000 4,000 384,000 253,000 211,000 1,550,000 Ending balance $ 3,120,000 $ 580,000 $ 1,452,000 $ 17,000 $ 1,391,000 $ 24,000 $ 893,000 $ 566,000 $ 1,873,000 $ 9,916,000 Allowance for loan losses as of December 31, 2015 Ending balance specifically evaluated for impairment $ 89,000 $ 302,000 $ 8,000 $ — $ 326,000 $ — $ 29,000 $ — $ — $ 754,000 Ending balance collectively evaluated for impairment $ 3,031,000 $ 278,000 $ 1,444,000 $ 17,000 $ 1,065,000 $ 24,000 $ 864,000 $ 566,000 $ 1,873,000 $ 9,162,000 Related loan balances as of December 31, 2015 Ending balance $ 269,462,000 $ 24,881,000 $ 128,341,000 $ 19,751,000 $ 403,030,000 $ 8,451,000 $ 110,202,000 $ 24,520,000 $ — $ 988,638,000 Ending balance specifically evaluated for impairment $ 10,717,000 $ 1,026,000 $ 1,234,000 $ — $ 15,088,000 $ — $ 1,466,000 $ — $ — $ 29,531,000 Ending balance collectively evaluated for impairment $ 258,745,000 $ 23,855,000 $ 127,107,000 $ 19,751,000 $ 387,942,000 $ 8,451,000 $ 108,736,000 $ 24,520,000 $ — $ 959,107,000 The following table presents allowance for loan losses activity by class for the three months ended March 31, 2015 , and allowance for loan loss balances by class and related loan balances by class as of March 31, 2015 : Commercial Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction For the three months ended March 31, 2015 Beginning balance $ 3,532,000 $ 823,000 $ 1,505,000 $ 15,000 $ 1,185,000 $ 20,000 $ 1,060,000 $ 542,000 $ 1,662,000 $ 10,344,000 Charge offs 122,000 — 2,000 — 83,000 — 447,000 62,000 — 716,000 Recoveries — — 4,000 — 6,000 — 22,000 36,000 — 68,000 Provision (credit) (293,000 ) (16,000 ) 207,000 1,000 — 3,000 409,000 10,000 179,000 500,000 Ending balance $ 3,117,000 $ 807,000 $ 1,714,000 $ 16,000 $ 1,108,000 $ 23,000 $ 1,044,000 $ 526,000 $ 1,841,000 $ 10,196,000 Allowance for loan losses as of March 31, 2015 Ending balance specifically evaluated for impairment $ 248,000 $ 396,000 $ 347,000 $ — $ 421,000 $ — $ 24,000 $ — $ — $ 1,436,000 Ending balance collectively evaluated for impairment $ 2,869,000 $ 411,000 $ 1,367,000 $ 16,000 $ 687,000 $ 23,000 $ 1,020,000 $ 526,000 $ 1,841,000 $ 8,760,000 Related loan balances as of March 31, 2015 Ending balance $ 242,021,000 $ 34,683,000 $ 115,455,000 $ 26,277,000 $ 383,869,000 $ 13,036,000 $ 104,100,000 $ 19,728,000 $ — $ 939,169,000 Ending balance specifically evaluated for impairment $ 12,705,000 $ 1,380,000 $ 2,721,000 $ — $ 16,348,000 $ — $ 1,654,000 $ 25,000 $ — $ 34,833,000 Ending balance collectively evaluated for impairment $ 229,316,000 $ 33,303,000 $ 112,734,000 $ 26,277,000 $ 367,521,000 $ 13,036,000 $ 102,446,000 $ 19,703,000 $ — $ 904,336,000

Stock Options and Stock-Based C

Stock Options and Stock-Based Compensation	3 Months Ended
	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Options and Stock-Based Compensation	Stock Options and Stock-Based Compensation At the 2010 Annual Meeting, shareholders approved the 2010 Equity Incentive Plan (the "2010 Plan"). This reserves 400,000 shares of common stock for issuance in connection with stock options, restricted stock awards and other equity based awards to attract and retain the best available personnel, provide additional incentive to officers, employees and non-employee Directors and promote the success of our business. Such grants and awards will be structured in a manner that does not encourage the recipients to expose the Company to undue or inappropriate risk. Options issued under the 2010 Plan will qualify for treatment as incentive stock options for purposes of Section 422 of the Internal Revenue Code. Other compensation under the 2010 Plan will qualify as performance-based for purposes of Section 162(m) of the Internal Revenue Code, and will satisfy NASDAQ guidelines relating to equity compensation. As of March 31, 2016 , 108,710 shares of restricted stock had been granted under the 2010 Plan, of which 67,064 shares remain restricted as of March 31, 2016 as detailed in the following table: Year Granted Vesting Term (In Years) Shares Remaining Term (In Years) 2012 5.0 7,996 0.8 2013 5.0 14,776 1.8 2014 5.0 10,422 2.8 2015 5.0 12,023 3.8 2016 1.0 6,832 0.8 2016 5.0 15,015 4.8 67,064 2.8 The compensation cost related to these restricted stock grants is $1,140,000 and will be recognized over the vesting terms of each grant. In the three months ended March 31, 2016 , $49,000 of expense was recognized for these restricted shares, leaving $706,000 in unrecognized expense as of March 31, 2016 . In the three months ended March 31, 2015 , $74,000 of expense was recognized for restricted shares, leaving $567,000 in unrecognized expense as of March 31, 2015 . The Company established a shareholder-approved stock option plan in 1995 (the "1995 Plan"), under which the Company granted options to employees for 600,000 shares of common stock. Only incentive stock options were granted under the 1995 Plan. The option price of each option grant was determined by the Options Committee of the Board of Directors, and in no instance was less than the fair market value on the date of the grant. An option's maximum term was ten years from the date of grant, with 50% of the options granted vesting two years from the date of grant and the remaining 50% vesting five years from the date of grant. As of January 16, 2005, all options under the 1995 Plan had been granted, and as of January 16, 2015, all options granted under the 2015 plan had been exercised or expired.

Preferred and Common Stock

Preferred and Common Stock	3 Months Ended
	Mar. 31, 2016
Stockholders' Equity Note [Abstract]
Preferred and Common Stock	Preferred and Common Stock Preferred Stock On January 9, 2009, the Company issued $25,000,000 in Fixed Rate Cumulative Perpetual Preferred Stock, Series A, by the U.S. Treasury ("Treasury') under the Capital Purchase Program ("the CPP Shares"). The CPP Shares qualified as Tier 1 capital on the Company's books for regulatory purposes and ranked senior to the Company's common stock and senior or at an equal level in the Company's capital structure to any other shares of preferred stock the Company may issue in the future. In three separate transactions in 2012 and 2013, the Company repurchased all of the CPP shares from the Treasury. Incident to such issuance of the CPP shares, the Company issued to the Treasury warrants (the "Warrants") to purchase up to 225,904 shares of the Company's common stock at a price per share of $16.60 (subject to adjustment). The Warrants (and any shares of common stock issuable pursuant to the Warrants) are freely transferable by Treasury to third parties. The Warrants have a term of ten years and could be exercised by Treasury or a subsequent holder at any time or from time to time during their term. To the extent they had not previously been exercised, the Warrants will expire after ten years. The Warrants were unchanged as a result of the CPP Shares repurchase transactions. In May 2015, the Treasury sold all of the Warrants to private parties. In accordance with the contractual terms of the Warrants, the number of shares issuable upon exercise of the warrants and strike price were adjusted at the time of the sale. As a result of this transaction, the number of issuable shares under the Warrants now stands at 226,819 shares with a strike price of $16.53 per share. Common Stock On March 28, 2013, the Company consummated a fully underwritten offering for 760,771 shares of the Company's common stock, with net proceeds of $11,649,000 . The Company used these proceeds to repurchase the remaining $10,000,000 of CPP Shares on May 8, 2013. Proceeds from sale of common stock totaled $121,000 and $110,000 for the three months ended March 31, 2016 and 2015 , respectively.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2016
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following table sets forth the computation of basic and diluted earnings per share (EPS) for the three months ended March 31, 2016 and 2015 : Income (Numerator) Shares (Denominator) Per-Share Amount For the three months ended March 31, 2016 Net income as reported $ 4,503,000 Basic EPS: Income available to common shareholders 4,503,000 10,699,440 $ 0.42 Effect of dilutive securities: restricted stock and warrants 95,672 Diluted EPS: Income available to common shareholders plus assumed conversions $ 4,503,000 10,795,112 $ 0.42 For the three months ended March 31, 2015 Net income as reported $ 4,175,000 Basic EPS: Income available to common shareholders 4,175,000 10,665,059 $ 0.39 Effect of dilutive securities: restricted stock and warrants 66,430 Diluted EPS: Income available to common shareholders plus assumed conversions $ 4,175,000 10,731,489 $ 0.39 All earnings per share calculations have been made using the weighted average number of shares outstanding during the period. The potentially dilutive securities are incentive stock options, unvested shares of restricted stock granted to certain key members of Management and the warrants. The number of dilutive shares is calculated using the treasury method, assuming that all options and warrants were exercisable at the end of each period. Options and warrants that are out-of-the-money are not considered in the calculation of dilutive earnings per share as the effect would be anti-dilutive. The following table presents the number of options and warrants outstanding as of March 31, 2016 and 2015 and the amount for which the average market price at period end is above or below the strike price: Outstanding In-the-Money Out-of-the-Money For the three months ended March 31, 2016 Warrants to private parties 226,819 226,819 — Total dilutive securities 226,819 226,819 — For the three months ended March 31, 2015 Warrants issued to Treasury 225,904 225,904 — Total dilutive securities 225,904 225,904 —

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2016
General Discussion of Pension and Other Postretirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans 401(k) Plan The Bank has a defined contribution plan available to substantially all employees who have completed 3 months of service. Employees may contribute up to Internal Revenue Service ("IRS") determined limits and the Bank may match employee contributions not to exceed 3.0% of compensation depending on contribution level. Subject to a vote of the Board of Directors, the Bank may also make a profit-sharing contribution to the Plan. Such contribution equaled 2.0% of each eligible employee's compensation in 2015 . The amount for 2016 has not been established. The expense related to the 401(k) plan was $120,000 and $121,000 for the three months ended March 31, 2016 and 2015 , respectively. Deferred Compensation and Supplemental Retirement Benefits The Bank also provides unfunded, non-qualified deferred compensation payable over two years , as well as unfunded supplemental retirement benefits for certain officers, payable in installments over 20 years upon retirement or death. The agreements consist of individual contracts with differing characteristics that, when taken together, do not constitute a postretirement plan. The costs for these benefits are recognized over the service periods of the participating officers in accordance with FASB ASC Topic 712 "Compensation – Nonretirement Postemployment Benefits". The expense of these supplemental retirement benefits was $54,000 for the three months ended March 31, 2016 and $78,000 for the same period in 2015 . As of March 31, 2016 , the associated accrued liability included in other liabilities in the balance sheet was $3,082,000 compared to $3,088,000 and $3,031,000 at December 31, 2015 and March 31, 2015 , respectively. Post-Retirement Benefit Plans The Bank sponsors two post-retirement benefit plans. One plan currently provides a subsidy for health insurance premiums to certain retired employees and a future subsidy for seven active employees who were age 50 and over in 1996. These subsidies are based on years of service and range between $40 and $1,200 per month per person. The other plan provides life insurance coverage to certain retired employees and health insurance for retired directors. None of these plans are pre-funded. The Company utilizes FASB ASC Topic 712 "Compensation – Nonretirement Postemployment Benefits" to recognize the overfunded or underfunded status of a defined benefit postretirement plan as an asset or liability in its balance sheet and to recognize changes in the funded status in the year in which the changes occur through comprehensive income. The following table sets forth the accumulated postretirement benefit obligation and funded status: At or for the three months ended March 31, 2016 2015 Change in benefit obligation Benefit obligation at beginning of year $ 1,967,000 $ 1,928,000 Service cost — — Interest cost 21,000 18,000 Benefits paid (30,000 ) (26,000 ) Benefit obligation at end of period $ 1,958,000 $ 1,920,000 Funded status Benefit obligation at end of period $ (1,958,000 ) $ (1,920,000 ) Unamortized loss 240,000 192,000 Accrued benefit cost at end of period $ (1,718,000 ) $ (1,728,000 ) The following table sets forth the net periodic pension cost: For the three months ended March 31, 2016 2015 Components of net periodic benefit cost Service cost $ — $ — Interest cost 21,000 18,000 Net periodic benefit cost $ 21,000 $ 18,000 Amounts not yet reflected in net periodic benefit cost and included in accumulated other comprehensive income (loss) are as follows: March 31, December 31, 2015 March 31, Unamortized net actuarial loss $ (240,000 ) $ (240,000 ) $ (192,000 ) Deferred tax benefit at 35% 84,000 84,000 67,000 Net unrecognized postretirement benefits included in accumulated other comprehensive income (loss) $ (156,000 ) $ (156,000 ) $ (125,000 ) A weighted average discount rate of 4.25% was used in determining the accumulated benefit obligation and the net periodic benefit cost. The assumed health care cost trend rate is 7.0% . The measurement date for benefit obligations was as of year-end for prior years presented. The expected benefit payments for all of 2016 are $121,000 . Plan expense for 2016 is estimated to be $85,000 . A 1% change in trend assumptions would create an approximate change in the same direction of $100,000 in the accumulated benefit obligation, $7,000 in the interest cost and $1,000 in the service cost.

Other Comprehensive Income (Los

Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2016
Equity [Abstract]
Other Comprehensive Income (Loss)	Other Comprehensive Income (Loss) The following table summarizes activity in the unrealized gain or loss on available for sale securities included in other comprehensive income (loss) for the three months ended March 31, 2016 and 2015 . For the three months ended March 31, 2016 2015 Balance at beginning of period $ 1,123,000 $ 2,522,000 Unrealized gains arising during the period 3,385,000 1,483,000 Reclassification of realized gains during the period (536,000 ) (1,395,000 ) Related deferred taxes (997,000 ) (31,000 ) Net change 1,852,000 57,000 Balance at end of period $ 2,975,000 $ 2,579,000 The reclassification of realized gains is included in the net securities gains line of the consolidated statements of income and comprehensive income and the tax effect is included in the income tax expense line of the same statement. The following table summarizes activity in the unrealized loss on securities transferred from available for sale to held to maturity included in other comprehensive income (loss) for the three months ended March 31, 2016 and 2015 . For the three months ended March 31, 2016 2015 Balance at beginning of period $ (112,000 ) $ (48,000 ) Amortization of net unrealized losses (17,000 ) (14,000 ) Related deferred taxes 6,000 (5,000 ) Net change (11,000 ) (19,000 ) Balance at end of period $ (123,000 ) $ (67,000 ) The following table summarizes activity in the unrealized gain or loss on postretirement benefits included in other comprehensive income (loss) for the three months ended March 31, 2016 and 2015 . For the three months ended March 31, 2016 2015 Unrecognized postretirement benefits at beginning of period $ (156,000 ) $ (125,000 ) Amortization of unrecognized transition obligation — — Change in unamortized net actuarial gain (loss) — — Related deferred taxes — — Unrecognized postretirement benefits at end of period $ (156,000 ) $ (125,000 )

Mortgage Servicing Rights

Mortgage Servicing Rights	3 Months Ended
	Mar. 31, 2016
Transfers and Servicing [Abstract]
Mortgage Servicing Rights	Mortgage Servicing Rights FASB ASC Topic 860 "Transfers and Servicing" requires all separately recognized servicing assets and servicing liabilities to be initially measured at fair value, if practicable. The Company's servicing assets and servicing liabilities are reported using the amortization method and carried at the lower of amortized cost or fair value by strata. In evaluating the carrying values of mortgage servicing rights, the Company obtains third party valuations based on loan level data including note rate, type and term of the underlying loans. The model utilizes several assumptions, the most significant of which is loan prepayments, calculated using a three -months moving average of weekly prepayment data published by the Public Securities Association (PSA) and modeled against the serviced loan portfolio, and the discount rate to discount future cash flows. As of March 31, 2016 , the prepayment assumption using the PSA model was 248 , which translates into an anticipated prepayment rate of 14.86% . The discount rate is the quarterly average 10 year U.S. Treasury plus 5.17% . Other assumptions include delinquency rates, foreclosure rates, servicing cost inflation, and annual unit loan cost. All assumptions are adjusted periodically to reflect current circumstances. Amortization of mortgage servicing rights, as well as write-offs due to prepayments of the related mortgage loans, are recorded as a charge against mortgage servicing fee income. For the three months ended March 31, 2016 and 2015 , servicing rights capitalized totaled zero and $64,000 , respectively. Servicing rights amortized for the three months ended March 31, 2016 and 2015 , were $97,000 and $104,000 , respectively. The fair value of servicing rights was $1,543,000 , $1,915,000 and $1,746,000 at March 31, 2016 , December 31, 2015 and March 31, 2015 , respectively. The Bank serviced loans for others totaling $223,565,000 , $223,610,000 and $214,537,000 at March 31, 2016 , December 31, 2015 , and March 31, 2015 , respectively. Mortgage servicing rights are included in other assets and detailed in the following table: March 31, December 31, March 31, Mortgage servicing rights $ 5,747,000 $ 5,747,000 $ 6,103,000 Accumulated amortization (4,716,000 ) (4,619,000 ) (5,053,000 ) Impairment reserve (107,000 ) (35,000 ) (47,000 ) $ 924,000 $ 1,093,000 $ 1,003,000

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes FASB ASC Topic 740 "Income Taxes" defines the criteria that an individual tax position must satisfy for some or all of the benefits of that position to be recognized in a company's financial statements. Topic 740 prescribes a recognition threshold of more-likely-than-not, and a measurement attribute for all tax positions taken or expected to be taken on a tax return, in order for those tax positions to be recognized in the financial statements. The Company is currently open to audit under the statute of limitations by the IRS for the years ended December 31, 2013 through 2015.

Certificates of Deposit

Certificates of Deposit	3 Months Ended
	Mar. 31, 2016
Banking and Thrift [Abstract]
Certificates of Deposit	Certificates of Deposit The following table represents the breakdown of certificates of deposit at March 31, 2016 and 2015 , and at December 31, 2015 : March 31, 2016 December 31, 2015 March 31, 2015 Certificates of deposit < $100,000 $ 197,006,000 $ 158,529,000 $ 137,166,000 Certificates $100,000 to $250,000 226,644,000 175,077,000 210,657,000 Certificates $250,000 and over 49,062,000 37,376,000 50,334,000 $ 472,712,000 $ 370,982,000 $ 398,157,000

Reclassifications

Reclassifications	3 Months Ended
	Mar. 31, 2016
Accounting Changes and Error Corrections [Abstract]
Reclassifications	Reclassifications Certain items from the prior year were reclassified in the financial statements to conform with the current year presentation. These do not have a material impact on the consolidated balance sheet or statement of income and comprehensive income presentations.

Fair Value

Fair Value	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value	Fair Value Certain assets and liabilities are recorded at fair value to provide additional insight into the Company's quality of earnings. Some of these assets and liabilities are measured on a recurring basis while others are measured on a nonrecurring basis, with the determination based upon applicable existing accounting pronouncements. For example, securities available for sale are recorded at fair value on a recurring basis. Other assets, such as, other real estate owned and impaired loans, are recorded at fair value on a nonrecurring basis using the lower of cost or market methodology to determine impairment of individual assets. The Company groups assets and liabilities which are recorded at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. A financial instrument's level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement (with level 1 considered highest and level 3 considered lowest). A brief description of each level follows. Level 1 - Valuation is based upon quoted prices for identical instruments in active markets. Level 2 - Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. Level 3 - Valuation is generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates that market participants would use in pricing the asset or liability. Valuation includes use of discounted cash flow models and similar techniques. The fair value methods and assumptions for the Company's financial instruments and other assets measured at fair value are set forth below. Cash, Cash Equivalents and Interest-Bearing Deposits in Other Banks The carrying values of cash equivalents, due from banks and federal funds sold approximate their relative fair values. As such, the Company classifies these financial instruments as Level 1. Investment Securities The fair values of investment securities are estimated by independent providers using a market approach with observable inputs, including matrix pricing and recent transactions. In obtaining such valuation information from third parties, the Company has evaluated their valuation methodologies used to develop the fair values in order to determine whether the valuations are representative of an exit price in the Company's principal markets. The Company's principal markets for its securities portfolios are the secondary institutional markets, with an exit price that is predominantly reflective of bid level pricing in those markets. Fair values are calculated based on the value of one unit without regard to any premium or discount that may result from concentrations of ownership of a financial instrument, possible tax ramifications, or estimated transaction costs. If these considerations had been incorporated into the fair value estimates, the aggregate fair value could have been changed. The carrying values of restricted equity securities approximate fair values. As such, the Company classifies investment securities as Level 2. Loans Held for Sale Loans held for sale are recorded at the lower of carrying value or fair value. The fair value of mortgage loans held for sale is based on what secondary markets are currently offering for portfolios with similar characteristics. As such, the Company classifies mortgage loans held for sale as Level 2. Loans Fair values are estimated for portfolios of loans with similar financial characteristics. The fair values of performing loans are calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest risk inherent in the loan. The estimates of maturity are based on the Company's historical experience with repayments for each loan classification, modified, as required, by an estimate of the effect of current economic and lending conditions, and the effects of estimated prepayments. Assumptions regarding credit risk, cash flows, and discount rates are judgmentally determined using available market information and specific borrower information. Management has made estimates of fair value using discount rates that it believes to be reasonable. However, because there is no market for many of these financial instruments, Management has no basis to determine whether the fair value presented above would be indicative of the value negotiated in an actual sale. As such, the Company classifies loans as Level 3, except for certain collateral-dependent impaired loans. Fair values of impaired loans are based on estimated cash flows and are discounted using a rate commensurate with the risk associated with the estimated cash flows, or if collateral dependent, discounted to the appraised value of the collateral as determined by reference to sale prices of similar properties, less costs to sell. As such, the Company classifies collateral dependent impaired loans for which a specific reserve results in a fair value measure as Level 2. All other impaired loans are classified as Level 3. Other Real Estate Owned Real estate acquired through foreclosure is initially recorded at fair value. The fair value of other real estate owned is based on property appraisals and an analysis of similar properties currently available. As such, the Company records other real estate owned as nonrecurring Level 2. Mortgage Servicing Rights Mortgage servicing rights represent the value associated with servicing residential mortgage loans. Servicing assets and servicing liabilities are reported using the amortization method and compared to fair value for impairment. In evaluating the fair values of mortgage servicing rights, the Company obtains third party valuations based on loan level data including note rate, type and term of the underlying loans. As such, the Company classifies mortgage servicing rights as Level 2. Accrued Interest Receivable The fair value estimate of this financial instrument approximates the carrying value as this financial instrument has a short maturity. It is the Company's policy to stop accruing interest on loans for which it is probable that the interest is not collectible. Therefore, this financial instrument has been adjusted for estimated credit loss. As such, the Company classifies accrued interest receivable as Level 2. Deposits The fair value of deposits is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities. As such, the Company classifies deposits as Level 2. The fair value estimates do not include the benefit that results from the low-cost funding provided by the deposits compared to the cost of borrowing funds in the market. If that value were considered, the fair value of the Company's net assets could increase. Borrowed Funds The fair value of borrowed funds is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently available for borrowings of similar remaining maturities. As such, the Company classifies borrowed funds as Level 2. Accrued Interest Payable The fair value estimate approximates the carrying amount as this financial instrument has a short maturity. The Company classifies accrued interest payable as Level 2. Off-Balance-Sheet Instruments Off-balance-sheet instruments include loan commitments. Fair values for loan commitments have not been presented as the future revenue derived from such financial instruments is not significant. Limitations Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These values do not reflect any premium or discount that could result from offering for sale at one time the Company's entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Company's financial instruments, fair value estimates are based on Management's judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on- and off-balance-sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. Other significant assets and liabilities that are not considered financial instruments include the deferred tax asset, premises and equipment, and other real estate owned. In addition, tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in any of the estimates. Assets and Liabilities Recorded at Fair Value on a Recurring Basis The following tables present the balances of assets and liabilities that were measured at fair value on a recurring basis as of March 31, 2016 , December 31, 2015 and March 31, 2015 . At March 31, 2016 Level 1 Level 2 Level 3 Total Securities available for sale Mortgage-backed securities $ — $ 193,657,000 $ — $ 193,657,000 State and political subdivisions — 19,904,000 — 19,904,000 Other equity securities — 3,164,000 — 3,164,000 Total assets $ — $ 216,725,000 $ — $ 216,725,000 At December 31, 2015 Level 1 Level 2 Level 3 Total Securities available for sale Mortgage-backed securities $ — $ 195,110,000 $ — $ 195,110,000 State and political subdivisions — 24,506,000 — 24,506,000 Other equity securities — 3,423,000 — 3,423,000 Total assets $ — $ 223,039,000 $ — $ 223,039,000 At March 31, 2015 Level 1 Level 2 Level 3 Total Securities available for sale Mortgage-backed securities $ — $ 127,617,000 $ — $ 127,617,000 State and political subdivisions — 25,598,000 — 25,598,000 Other equity securities — 3,102,000 — 3,102,000 Total assets $ — $ 156,317,000 $ — $ 156,317,000 Assets and Liabilities Recorded at Fair Value on a Non-Recurring Basis The following tables include assets measured at fair value on a nonrecurring basis that have had a fair value adjustment since their initial recognition. Other real estate owned is presented net of an allowance of $130,000 , $162,000 and $387,000 at March 31, 2016 , December 31, 2015 , and March 31, 2015 , respectively. Only collateral-dependent impaired loans with a related specific allowance for loan losses or a partial charge off are included in impaired loans for purposes of fair value disclosures. Impaired loans below are presented net of specific allowances of $158,000 , $292,000 and $799,000 at March 31, 2016 , December 31, 2015 , and March 31, 2015 , respectively. At March 31, 2016 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 1,592,000 $ — $ 1,592,000 Impaired loans — 879,000 — 879,000 Total assets $ — $ 2,471,000 $ — $ 2,471,000 At December 31, 2015 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 1,532,000 $ — $ 1,532,000 Impaired loans — 699,000 — 699,000 Total assets $ — $ 2,231,000 $ — $ 2,231,000 At March 31, 2015 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 2,899,000 $ — $ 2,899,000 Impaired loans — 1,439,000 — 1,439,000 Total assets $ — $ 4,338,000 $ — $ 4,338,000 Fair Value of Financial Instruments FASB ASC Topic 825 "Financial Instruments" requires disclosures of fair value information about financial instruments, whether or not recognized in the balance sheet, if the fair values can be reasonably determined. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company's various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques using observable inputs when available. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. Topic 825 excludes certain financial instruments and all nonfinancial instruments from its disclosure requirements. Accordingly, the aggregate fair value amounts presented may not necessarily represent the underlying fair value of the Company. The carrying amount and estimated fair values for financial instruments as of March 31, 2016 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 14,533,000 $ 14,533,000 $ 14,533,000 $ — $ — Interest bearing deposits in other banks 6,372,000 6,372,000 6,372,000 — — Securities available for sale 216,725,000 216,725,000 — 216,725,000 — Securities to be held to maturity 236,611,000 243,337,000 — 243,337,000 — Restricted equity securities 13,875,000 13,875,000 — 13,875,000 — Loans held for sale 224,000 224,000 — 224,000 — Loans (net of allowance for loan losses) Commercial Real estate 275,510,000 272,302,000 — — 272,302,000 Construction 19,729,000 19,499,000 — — 19,499,000 Other 131,644,000 131,637,000 — — 131,637,000 Municipal 19,022,000 19,994,000 — — 19,994,000 Residential Term 403,749,000 410,670,000 — 17,000 410,653,000 Construction 11,715,000 11,648,000 — — 11,648,000 Home equity line of credit 109,177,000 108,274,000 — 862,000 107,412,000 Consumer 24,177,000 24,153,000 — — 24,153,000 Total loans 994,723,000 998,177,000 — 879,000 997,298,000 Mortgage servicing rights 924,000 1,543,000 — 1,543,000 — Accrued interest receivable 6,271,000 6,271,000 — 6,271,000 — Financial liabilities Demand deposits $ 116,756,000 $ 116,614,000 $ — $ 116,614,000 $ — NOW deposits 240,112,000 230,934,000 — 230,934,000 — Money market deposits 74,643,000 68,221,000 — 68,221,000 — Savings deposits 205,218,000 187,346,000 — 187,346,000 — Local certificates of deposit 207,664,000 209,455,000 — 209,455,000 — National certificates of deposit 265,048,000 265,335,000 — 265,335,000 — Total deposits 1,109,441,000 1,077,905,000 — 1,077,905,000 — Repurchase agreements 91,399,000 88,442,000 — 88,442,000 — Federal Home Loan Bank advances 185,132,000 186,398,000 — 186,398,000 — Total borrowed funds 276,531,000 274,840,000 — 274,840,000 — Accrued interest payable 495,000 495,000 — 495,000 — The carrying amounts and estimated fair values for financial instruments as of December 31, 2015 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 14,299,000 $ 14,299,000 $ 14,299,000 $ — $ — Interest bearing deposits in other banks 4,013,000 4,013,000 4,013,000 — — Securities available for sale 223,039,000 223,039,000 — 223,039,000 — Securities to be held to maturity 240,023,000 243,123,000 — 243,123,000 — Restricted equity securities 14,257,000 14,257,000 — 14,257,000 — Loans held for sale 349,000 349,000 — 349,000 — Loans (net of allowance for loan losses) Commercial Real estate 265,616,000 262,763,000 — — 262,763,000 Construction 24,166,000 23,906,000 — — 23,906,000 Other 126,551,000 126,141,000 — — 126,141,000 Municipal 19,730,000 20,331,000 — — 20,331,000 Residential Term 401,315,000 405,315,000 — — 405,315,000 Construction 8,421,000 8,379,000 — — 8,379,000 Home equity line of credit 109,101,000 108,118,000 — 699,000 107,419,000 Consumer 23,822,000 23,754,000 — — 23,754,000 Total loans 978,722,000 978,707,000 — 699,000 978,008,000 Mortgage servicing rights 1,093,000 1,915,000 — 1,915,000 — Accrued interest receivable 4,912,000 4,912,000 — 4,912,000 — Financial liabilities Demand deposits $ 130,566,000 $ 125,651,000 $ — $ 125,651,000 $ — NOW deposits 242,638,000 224,627,000 — 224,627,000 — Money market deposits 92,994,000 82,050,000 — 82,050,000 — Savings deposits 206,009,000 181,010,000 — 181,010,000 — Local certificates of deposit 201,420,000 201,013,000 — 201,013,000 — National certificates of deposit 169,562,000 169,617,000 — 169,617,000 — Total deposits 1,043,189,000 983,968,000 — 983,968,000 — Repurchase agreements 87,103,000 82,168,000 — 82,168,000 — Federal Home Loan Bank advances 250,354,000 250,027,000 — 250,027,000 — Total borrowed funds 337,457,000 332,195,000 — 332,195,000 — Accrued interest payable 435,000 435,000 — 435,000 — The carrying amount and estimated fair values for financial instruments as of March 31, 2015 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 13,855,000 $ 13,855,000 $ 13,855,000 $ — $ — Interest bearing deposits in other banks 336,000 336,000 336,000 — — Securities available for sale 156,317,000 156,317,000 — 156,317,000 — Securities to be held to maturity 262,455,000 267,247,000 — 267,247,000 — Restricted equity securities 13,912,000 13,912,000 — 13,912,000 — Loans (net of allowance for loan losses) Commercial Real estate 238,218,000 236,340,000 — 184,000 236,156,000 Construction 33,698,000 33,432,000 — — 33,432,000 Other 113,363,000 113,409,000 — 9,000 113,400,000 Municipal 26,257,000 26,844,000 — — 26,844,000 Residential Term 382,517,000 389,582,000 — 1,018,000 388,564,000 Construction 13,008,000 12,988,000 — — 12,988,000 Home equity line of credit 102,826,000 102,302,000 — 228,000 102,074,000 Consumer 19,086,000 19,259,000 — — 19,259,000 Total loans 928,973,000 934,156,000 — 1,439,000 932,717,000 Mortgage servicing rights 1,003,000 1,746,000 — 1,746,000 — Accrued interest receivable 5,724,000 5,724,000 — 5,724,000 — Financial liabilities Demand deposits $ 100,939,000 $ 99,935,000 $ — $ 99,935,000 $ — NOW deposits 199,099,000 189,139,000 — 189,139,000 — Money market deposits 101,292,000 87,816,000 — 87,816,000 — Savings deposits 167,338,000 151,345,000 — 151,345,000 — Local certificates of deposit 199,553,000 200,506,000 — 200,506,000 — National certificates of deposit 198,604,000 198,846,000 — 198,846,000 — Total deposits 966,825,000 927,587,000 — 927,587,000 — Repurchase agreements 85,657,000 81,693,000 — 81,693,000 — Federal Home Loan Bank advances 226,919,000 230,230,000 — 230,230,000 — Total borrowed funds 312,576,000 311,923,000 — 311,923,000 — Accrued interest payable 564,000 564,000 — 564,000 —

Impact of Recently Issued Accou

Impact of Recently Issued Accounting Standards	3 Months Ended
	Mar. 31, 2016
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Impact of Recently Issued Accounting Standards	Impact of Recently Issued Accounting Standards In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities. The ASU was issued to enhance the reporting model for financial instruments to provide users of financial statements with more decision-useful information. This ASU changes how entities account for equity investments that do not result in consolidation and are not accounted for under the equity method of accounting. The ASU also changes certain disclosure requirements and other aspects of U.S. GAAP, including a requirement for public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes. The ASU is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The ASU will not have a material effect on the Company's consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The ASU was issued to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The ASU is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Management is reviewing the guidance in the ASU to determine whether it will have a material effect on the Company’s consolidated financial statements.

Impact of Recently Issued Acc24

Impact of Recently Issued Accounting Standards (Policies)	3 Months Ended
	Mar. 31, 2016
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Impact of Recently Issued Accounting Standards	Impact of Recently Issued Accounting Standards In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities. The ASU was issued to enhance the reporting model for financial instruments to provide users of financial statements with more decision-useful information. This ASU changes how entities account for equity investments that do not result in consolidation and are not accounted for under the equity method of accounting. The ASU also changes certain disclosure requirements and other aspects of U.S. GAAP, including a requirement for public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes. The ASU is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The ASU will not have a material effect on the Company's consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The ASU was issued to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The ASU is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Management is reviewing the guidance in the ASU to determine whether it will have a material effect on the Company’s consolidated financial statements.

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Schedule of Available For Sale, Held-to-Maturity, and Restricted Equity Securities	The following table summarizes the amortized cost and estimated fair value of investment securities at March 31, 2016 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale Mortgage-backed securities $ 190,025,000 $ 3,837,000 $ (205,000 ) $ 193,657,000 State and political subdivisions 18,975,000 948,000 (19,000 ) 19,904,000 Other equity securities 3,148,000 39,000 (23,000 ) 3,164,000 $ 212,148,000 $ 4,824,000 $ (247,000 ) $ 216,725,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 68,009,000 $ 37,000 $ (107,000 ) $ 67,939,000 Mortgage-backed securities 39,828,000 1,675,000 (35,000 ) 41,468,000 State and political subdivisions 124,474,000 5,156,000 — 129,630,000 Corporate securities 4,300,000 — — 4,300,000 $ 236,611,000 $ 6,868,000 $ (142,000 ) $ 243,337,000 Restricted equity securities Federal Home Loan Bank Stock $ 12,838,000 $ — $ — $ 12,838,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 13,875,000 $ — $ — $ 13,875,000 The following table summarizes the amortized cost and estimated fair value of investment securities at December 31, 2015 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale Mortgage-backed securities $ 194,563,000 $ 1,509,000 $ (962,000 ) $ 195,110,000 State and political subdivisions 23,367,000 1,201,000 (62,000 ) 24,506,000 Other equity securities 3,381,000 48,000 (6,000 ) 3,423,000 $ 221,311,000 $ 2,758,000 $ (1,030,000 ) $ 223,039,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 71,000,000 $ 40,000 $ (2,284,000 ) $ 68,756,000 Mortgage-backed securities 42,193,000 1,305,000 (136,000 ) 43,362,000 State and political subdivisions 122,530,000 4,200,000 (25,000 ) 126,705,000 Corporate securities 4,300,000 — — 4,300,000 $ 240,023,000 $ 5,545,000 $ (2,445,000 ) $ 243,123,000 Restricted equity securities Federal Home Loan Bank Stock $ 13,220,000 $ — $ — $ 13,220,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 14,257,000 $ — $ — $ 14,257,000 The following table summarizes the amortized cost and estimated fair value of investment securities at March 31, 2015 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale Mortgage-backed securities $ 124,969,000 $ 2,790,000 $ (142,000 ) $ 127,617,000 State and political subdivisions 24,384,000 1,328,000 (114,000 ) 25,598,000 Other equity securities 2,997,000 105,000 — 3,102,000 $ 152,350,000 $ 4,223,000 $ (256,000 ) $ 156,317,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 82,974,000 $ 108,000 $ (912,000 ) $ 82,170,000 Mortgage-backed securities 53,228,000 2,030,000 (116,000 ) 55,142,000 State and political subdivisions 125,953,000 3,811,000 (129,000 ) 129,635,000 Corporate securities 300,000 — — 300,000 $ 262,455,000 $ 5,949,000 $ (1,157,000 ) $ 267,247,000 Restricted equity securities Federal Home Loan Bank Stock $ 12,875,000 $ — $ — $ 12,875,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 13,912,000 $ — $ — $ 13,912,000
Contractual Maturities of Investment Securities	The following table summarizes the contractual maturities of investment securities at March 31, 2016 : Securities available for sale Securities to be held to maturity Amortized Cost Fair Value (Estimated) Amortized Cost Fair Value (Estimated) Due in 1 year or less $ 2,599,000 $ 2,633,000 $ 1,825,000 $ 1,847,000 Due in 1 to 5 years 3,321,000 3,390,000 6,709,000 6,925,000 Due in 5 to 10 years 19,222,000 19,946,000 56,874,000 58,932,000 Due after 10 years 183,858,000 187,592,000 171,203,000 175,633,000 Equity securities 3,148,000 3,164,000 — — $ 212,148,000 $ 216,725,000 $ 236,611,000 $ 243,337,000 The following table summarizes the contractual maturities of investment securities at December 31, 2015 : Securities available for sale Securities to be held to maturity Amortized Cost Fair Value (Estimated) Amortized Cost Fair Value (Estimated) Due in 1 year or less $ 527,000 $ 530,000 $ 1,814,000 $ 1,850,000 Due in 1 to 5 years 7,562,000 7,727,000 6,306,000 6,514,000 Due in 5 to 10 years 19,647,000 20,055,000 58,397,000 60,196,000 Due after 10 years 190,194,000 191,304,000 173,506,000 174,563,000 Equity securities 3,381,000 3,423,000 — — $ 221,311,000 $ 223,039,000 $ 240,023,000 $ 243,123,000 The following table summarizes the contractual maturities of investment securities at March 31, 2015 : Securities available for sale Securities to be held to maturity Amortized Cost Fair Value (Estimated) Amortized Cost Fair Value (Estimated) Due in 1 year or less $ 2,842,000 $ 2,858,000 $ 1,873,000 $ 1,899,000 Due in 1 to 5 years 14,950,000 15,231,000 12,050,000 12,241,000 Due in 5 to 10 years 17,746,000 18,110,000 47,898,000 49,930,000 Due after 10 years 113,815,000 117,016,000 200,634,000 203,177,000 Equity securities 2,997,000 3,102,000 — — $ 152,350,000 $ 156,317,000 $ 262,455,000 $ 267,247,000
Schedule of Securities Gains and Losses	The following table shows securities gains and losses for the three months ended March 31, 2016 and 2015 : For the three months ended March 31, 2016 2015 Proceeds from sales of securities $ 8,868,000 $ 35,465,000 Gross realized gains 536,000 1,395,000 Gross realized losses — — Net gain $ 536,000 $ 1,395,000 Related income taxes $ 188,000 $ 488,000
Schedule of Temporary Impairment Losses	Information regarding securities temporarily impaired as of March 31, 2016 is summarized below: Less than 12 months 12 months or more Total Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses U.S. Government-sponsored agencies $ — $ — $ 4,893,000 $ (107,000 ) $ 4,893,000 $ (107,000 ) Mortgage-backed securities 17,125,000 (170,000 ) 1,866,000 (70,000 ) 18,991,000 (240,000 ) State and political subdivisions 522,000 — 1,417,000 (19,000 ) 1,939,000 (19,000 ) Other equity securities 235,000 (6,000 ) 106,000 (17,000 ) 341,000 (23,000 ) $ 17,882,000 $ (176,000 ) $ 8,282,000 $ (213,000 ) $ 26,164,000 $ (389,000 ) As of December 31, 2015 , there were 78 securities with unrealized losses held in the Company's portfolio. These securities were temporarily impaired as a result of changes in interest rates reducing their fair value, of which 15 had been temporarily impaired for 12 months or more. Information regarding securities temporarily impaired as of December 31, 2015 is summarized below: Less than 12 months 12 months or more Total Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses U.S. Government-sponsored agencies $ 45,311,000 $ (1,469,000 ) $ 17,185,000 $ (815,000 ) $ 62,496,000 $ (2,284,000 ) Mortgage-backed securities 120,915,000 (1,027,000 ) 910,000 (71,000 ) 121,825,000 (1,098,000 ) State and political subdivisions 2,528,000 (24,000 ) 2,901,000 (63,000 ) 5,429,000 (87,000 ) Other equity securities 64,000 (5,000 ) 52,000 (1,000 ) 116,000 (6,000 ) $ 168,818,000 $ (2,525,000 ) $ 21,048,000 $ (950,000 ) $ 189,866,000 $ (3,475,000 ) As of March 31, 2015 , there were 55 securities with unrealized losses held in the Company's portfolio. These securities were temporarily impaired as a result of changes in interest rates reducing their fair value, of which five had been temporarily impaired for 12 months or more. Information regarding securities temporarily impaired as of March 31, 2015 is summarized below: Less than 12 months 12 months or more Total Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses Fair Value (Estimated) Unrealized Losses U.S. Government-sponsored agencies $ 36,459,000 $ (595,000 ) $ 10,903,000 $ (317,000 ) $ 47,362,000 $ (912,000 ) Mortgage-backed securities 20,634,000 (256,000 ) 65,000 (2,000 ) 20,699,000 (258,000 ) State and political subdivisions 10,390,000 (201,000 ) 1,641,000 (42,000 ) 12,031,000 (243,000 ) $ 67,483,000 $ (1,052,000 ) $ 12,609,000 $ (361,000 ) $ 80,092,000 $ (1,413,000 )

Loans (Tables)

Loans (Tables)	3 Months Ended
	Mar. 31, 2016
Loans and Leases Receivable Disclosure [Abstract]
Composition of Loan Portfolio	The following table shows the composition of the Company's loan portfolio as of March 31, 2016 and 2015 and at December 31, 2015 : March 31, 2016 December 31, 2015 March 31, 2015 Commercial Real estate $ 279,683,000 27.8 % $ 269,462,000 27.3 % $ 242,021,000 25.8 % Construction 20,138,000 2.0 % 24,881,000 2.5 % 34,683,000 3.7 % Other 133,629,000 13.3 % 128,341,000 13.0 % 115,455,000 12.3 % Municipal 19,042,000 1.9 % 19,751,000 2.0 % 26,277,000 2.8 % Residential Term 405,495,000 40.3 % 403,030,000 40.7 % 383,869,000 40.8 % Construction 11,754,000 1.2 % 8,451,000 0.9 % 13,036,000 1.4 % Home equity line of credit 110,249,000 11.0 % 110,202,000 11.1 % 104,100,000 11.1 % Consumer 24,952,000 2.5 % 24,520,000 2.5 % 19,728,000 2.1 % Total $ 1,004,942,000 100.0 % $ 988,638,000 100.0 % $ 939,169,000 100.0 %
Past Due Loans Aging	Information on the past-due status of loans by class of financing receivable as of March 31, 2016 , is presented in the following table: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due All Past Due Current Total 90+ Days & Accruing Commercial Real estate $ 428,000 $ 376,000 $ 451,000 $ 1,255,000 $ 278,428,000 $ 279,683,000 $ — Construction — — 150,000 150,000 19,988,000 20,138,000 — Other 323,000 110,000 — 433,000 133,196,000 133,629,000 — Municipal — — — — 19,042,000 19,042,000 — Residential Term 2,321,000 62,000 2,400,000 4,783,000 400,712,000 405,495,000 411,000 Construction — — — — 11,754,000 11,754,000 — Home equity line of credit 718,000 122,000 543,000 1,383,000 108,866,000 110,249,000 — Consumer 176,000 26,000 41,000 243,000 24,709,000 24,952,000 41,000 Total $ 3,966,000 $ 696,000 $ 3,585,000 $ 8,247,000 $ 996,695,000 $ 1,004,942,000 $ 452,000 Information on the past-due status of loans by class of financing receivable as of December 31, 2015 , is presented in the following table: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due All Past Due Current Total 90+ Days & Accruing Commercial Real estate $ 603,000 $ — $ 281,000 $ 884,000 $ 268,578,000 $ 269,462,000 $ — Construction 35,000 — 238,000 273,000 24,608,000 24,881,000 — Other 303,000 — 25,000 328,000 128,013,000 128,341,000 25,000 Municipal — — — — 19,751,000 19,751,000 — Residential Term 450,000 2,098,000 2,639,000 5,187,000 397,843,000 403,030,000 100,000 Construction 368,000 — — 368,000 8,083,000 8,451,000 — Home equity line of credit 261,000 255,000 592,000 1,108,000 109,094,000 110,202,000 — Consumer 102,000 26,000 11,000 139,000 24,381,000 24,520,000 11,000 Total $ 2,122,000 $ 2,379,000 $ 3,786,000 $ 8,287,000 $ 980,351,000 $ 988,638,000 $ 136,000 Information on the past-due status of loans by class of financing receivable as of March 31, 2015 , is presented in the following table: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due All Past Due Current Total 90+ Days & Accruing Commercial Real estate $ 491,000 $ — $ 307,000 $ 798,000 $ 241,223,000 $ 242,021,000 $ — Construction 21,000 — 208,000 229,000 34,454,000 34,683,000 — Other 135,000 2,000 857,000 994,000 114,461,000 115,455,000 — Municipal — — — — 26,277,000 26,277,000 — Residential Term 3,948,000 1,438,000 2,857,000 8,243,000 375,626,000 383,869,000 100,000 Construction — — — — 13,036,000 13,036,000 — Home equity line of credit 488,000 105,000 864,000 1,457,000 102,643,000 104,100,000 — Consumer 136,000 16,000 85,000 237,000 19,491,000 19,728,000 84,000 Total $ 5,219,000 $ 1,561,000 $ 5,178,000 $ 11,958,000 $ 927,211,000 $ 939,169,000 $ 184,000
Nonaccrual Loans	Information on nonaccrual loans as of March 31, 2016 and 2015 and at December 31, 2015 is presented in the following table: March 31, 2016 December 31, 2015 March 31, 2015 Commercial Real estate $ 920,000 $ 915,000 $ 1,609,000 Construction 180,000 238,000 208,000 Other 69,000 66,000 932,000 Municipal — — — Residential Term 4,677,000 5,260,000 6,514,000 Construction — — — Home equity line of credit 841,000 893,000 1,039,000 Consumer — — 25,000 Total $ 6,687,000 $ 7,372,000 $ 10,327,000
Impaired Loans by class of financing receivable	A breakdown of impaired loans by class of financing receivable as of and for the three months ended March 31, 2016 is presented in the following table: Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Recognized Interest Income With No Related Allowance Commercial Real estate $ 7,381,000 $ 7,712,000 $ — $ 7,221,000 $ 79,000 Construction 179,000 238,000 — 80,000 1,000 Other 1,097,000 1,137,000 — 1,121,000 8,000 Municipal — — — — — Residential Term 10,543,000 11,541,000 — 10,715,000 91,000 Construction — — — — — Home equity line of credit 1,344,000 2,023,000 — 1,353,000 8,000 Consumer — — — — — $ 20,544,000 $ 22,651,000 $ — $ 20,490,000 $ 187,000 With an Allowance Recorded Commercial Real estate $ 3,129,000 $ 3,213,000 $ 69,000 $ 3,399,000 $ 36,000 Construction 788,000 788,000 96,000 926,000 8,000 Other 88,000 96,000 21,000 80,000 — Municipal — — — — — Residential Term 3,997,000 4,265,000 384,000 3,995,000 43,000 Construction — — — — — Home equity line of credit 64,000 65,000 29,000 83,000 1,000 Consumer — — — — — $ 8,066,000 $ 8,427,000 $ 599,000 $ 8,483,000 $ 88,000 Total Commercial Real estate $ 10,510,000 $ 10,925,000 $ 69,000 $ 10,620,000 $ 115,000 Construction 967,000 1,026,000 96,000 1,006,000 9,000 Other 1,185,000 1,233,000 21,000 1,201,000 8,000 Municipal — — — — — Residential Term 14,540,000 15,806,000 384,000 14,710,000 134,000 Construction — — — — — Home equity line of credit 1,408,000 2,088,000 29,000 1,436,000 9,000 Consumer — — — — — $ 28,610,000 $ 31,078,000 $ 599,000 $ 28,973,000 $ 275,000 Substantially all interest income recognized on impaired loans for all classes of financing receivables was recognized on a cash basis as received. A breakdown of impaired loans by class of financing receivable as of and for the year ended December 31, 2015 is presented in the following table: Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Recognized Interest Income With No Related Allowance Commercial Real estate $ 7,173,000 $ 7,496,000 $ — $ 8,990,000 $ 301,000 Construction 30,000 30,000 — 3,000 1,000 Other 1,163,000 1,210,000 — 1,893,000 76,000 Municipal — — — — — Residential Term 11,122,000 12,157,000 — 10,480,000 415,000 Construction — — — — — Home equity line of credit 1,401,000 2,054,000 — 1,400,000 43,000 Consumer — — — 42,000 3,000 $ 20,889,000 $ 22,947,000 $ — $ 22,808,000 $ 839,000 With an Allowance Recorded Commercial Real estate $ 3,544,000 $ 3,627,000 $ 89,000 $ 3,066,000 $ 149,000 Construction 996,000 996,000 302,000 1,153,000 44,000 Other 71,000 77,000 8,000 256,000 5,000 Municipal — — — — — Residential Term 3,966,000 4,193,000 326,000 5,228,000 180,000 Construction — — — — — Home equity line of credit 65,000 66,000 29,000 187,000 3,000 Consumer — — — — — $ 8,642,000 $ 8,959,000 $ 754,000 $ 9,890,000 $ 381,000 Total Commercial Real estate $ 10,717,000 $ 11,123,000 $ 89,000 $ 12,056,000 $ 450,000 Construction 1,026,000 1,026,000 302,000 1,156,000 45,000 Other 1,234,000 1,287,000 8,000 2,149,000 81,000 Municipal — — — — — Residential Term 15,088,000 16,350,000 326,000 15,708,000 595,000 Construction — — — — — Home equity line of credit 1,466,000 2,120,000 29,000 1,587,000 46,000 Consumer — — — 42,000 3,000 $ 29,531,000 $ 31,906,000 $ 754,000 $ 32,698,000 $ 1,220,000 A breakdown of impaired loans by class of financing receivable as of and for the three months ended March 31, 2015 is presented in the following table: Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Recognized Interest Income With No Related Allowance Commercial Real estate $ 9,062,000 $ 9,496,000 $ — $ 10,899,000 $ 88,000 Construction — — — — — Other 2,305,000 2,411,000 — 2,465,000 16,000 Municipal — — — — — Residential Term 11,235,000 12,243,000 — 11,136,000 100,000 Construction — — — — — Home equity line of credit 1,363,000 1,958,000 — 1,281,000 8,000 Consumer 25,000 28,000 — 25,000 1,000 $ 23,990,000 $ 26,136,000 $ — $ 25,806,000 $ 213,000 With an Allowance Recorded Commercial Real estate $ 3,643,000 $ 3,955,000 $ 248,000 $ 1,996,000 $ 32,000 Construction 1,380,000 1,380,000 396,000 1,372,000 13,000 Other 416,000 1,115,000 347,000 327,000 — Municipal — — — — — Residential Term 5,113,000 5,363,000 421,000 5,233,000 53,000 Construction — — — — — Home equity line of credit 291,000 295,000 24,000 387,000 — Consumer — — — — — $ 10,843,000 $ 12,108,000 $ 1,436,000 $ 9,315,000 $ 98,000 Total Commercial Real estate $ 12,705,000 $ 13,451,000 $ 248,000 $ 12,895,000 $ 120,000 Construction 1,380,000 1,380,000 396,000 1,372,000 13,000 Other 2,721,000 3,526,000 347,000 2,792,000 16,000 Municipal — — — — — Residential Term 16,348,000 17,606,000 421,000 16,369,000 153,000 Construction — — — — — Home equity line of credit 1,654,000 2,253,000 24,000 1,668,000 8,000 Consumer 25,000 28,000 — 25,000 1,000 $ 34,833,000 $ 38,244,000 $ 1,436,000 $ 35,121,000 $ 311,000
Troubled Debt Restructurings on Financing Receivables	The following table shows TDRs by class and the specific reserve as of March 31, 2016 : Number of Loans Balance Specific Reserves Commercial Real estate 14 $ 10,133,000 $ 65,000 Construction 1 788,000 96,000 Other 10 1,116,000 — Municipal — — — Residential Term 53 10,856,000 275,000 Construction — — — Home equity line of credit 4 735,000 — Consumer — — — 82 $ 23,628,000 $ 436,000 The following table shows TDRs by class and the specific reserve as of December 31, 2015 : Number of Loans Balance Specific Reserves Commercial Real estate 15 $ 10,350,000 $ 85,000 Construction 1 788,000 94,000 Other 11 1,168,000 1,000 Municipal — — — Residential Term 53 10,875,000 275,000 Construction — — — Home equity line of credit 4 742,000 — Consumer — — — 84 $ 23,923,000 $ 455,000 The following table shows TDRs by class and the specific reserve as of March 31, 2015 : Number of Loans Balance Specific Reserves Commercial Real estate 17 $ 11,831,000 $ 133,000 Construction 1 1,172,000 189,000 Other 13 1,789,000 — Municipal — — — Residential Term 54 10,917,000 351,000 Construction — — — Home equity line of credit 5 815,000 22,000 Consumer — — — 90 $ 26,524,000 $ 695,000 As of March 31, 2016 , six of the loans classified as TDRs with a total balance of $890,000 were more than 30 days past due. None of these loans had been placed on TDR status in the previous 12 months. The following table shows these TDRs by class and the associated specific reserves included in the allowance for loan losses as of March 31, 2016 : Number of Loans Balance Specific Reserves Commercial Real estate 1 $ 155,000 $ — Construction — — — Other — — — Municipal — — — Residential Term 5 735,000 46,000 Construction — — — Home equity line of credit — — — Consumer — — — 6 $ 890,000 $ 46,000 As of March 31, 2015 , eight of the loans classified as TDRs with a total balance of $1,121,000 were more than 30 days past due. None, of these loans had been placed on TDR status in the previous 12 months. The following table shows these TDRs by class and the associated specific reserves included in the allowance for loan losses as of March 31, 2015 : Number of Loans Balance Specific Reserves Commercial Real estate — $ — $ — Construction — — — Other — — — Municipal — — — Residential Term 7 920,000 — Construction — — — Home equity line of credit 1 201,000 22,000 Consumer — — — 8 $ 1,121,000 $ 22,000

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	3 Months Ended
	Mar. 31, 2016
Receivables [Abstract]
Allowance for loan losses by class of financing receivable and allowance	A breakdown of the allowance for loan losses as of March 31, 2016 , December 31, 2015 , and March 31, 2015 , by class of financing receivable and allowance element, is presented in the following tables: As of March 31, 2016 Specific Reserves on Loans Evaluated Individually for Impairment General Reserves on Loans Based on Historical Loss Experience Reserves for Qualitative Factors Unallocated Reserves Total Reserves Commercial Real estate $ 69,000 $ 1,236,000 $ 2,219,000 $ — $ 3,524,000 Construction 96,000 89,000 160,000 — 345,000 Other 21,000 592,000 1,063,000 — 1,676,000 Municipal — — 17,000 — 17,000 Residential Term 384,000 630,000 460,000 — 1,474,000 Construction — 19,000 14,000 — 33,000 Home equity line of credit 29,000 502,000 374,000 — 905,000 Consumer — 413,000 241,000 — 654,000 Unallocated — — — 1,591,000 1,591,000 $ 599,000 $ 3,481,000 $ 4,548,000 $ 1,591,000 $ 10,219,000 As of December 31, 2015 Specific Reserves on Loans Evaluated Individually for Impairment General Reserves on Loans Based on Historical Loss Experience Reserves for Qualitative Factors Unallocated Reserves Total Reserves Commercial Real estate $ 89,000 $ 893,000 $ 2,138,000 $ — $ 3,120,000 Construction 302,000 82,000 196,000 — 580,000 Other 8,000 425,000 1,019,000 — 1,452,000 Municipal — — 17,000 — 17,000 Residential Term 326,000 613,000 452,000 — 1,391,000 Construction — 14,000 10,000 — 24,000 Home equity line of credit 29,000 500,000 364,000 — 893,000 Consumer — 331,000 235,000 — 566,000 Unallocated — — — 1,873,000 1,873,000 $ 754,000 $ 2,858,000 $ 4,431,000 $ 1,873,000 $ 9,916,000 As of March 31, 2015 Specific Reserves on Loans Evaluated Individually for Impairment General Reserves on Loans Based on Historical Loss Experience Reserves for Qualitative Factors Unallocated Reserves Total Reserves Commercial Real estate $ 248,000 $ 1,094,000 $ 1,775,000 $ — $ 3,117,000 Construction 396,000 157,000 254,000 — 807,000 Other 347,000 521,000 846,000 — 1,714,000 Municipal — — 16,000 — 16,000 Residential Term 421,000 298,000 389,000 — 1,108,000 Construction — 10,000 13,000 — 23,000 Home equity line of credit 24,000 716,000 304,000 — 1,044,000 Consumer — 318,000 208,000 — 526,000 Unallocated — — — 1,841,000 1,841,000 $ 1,436,000 $ 3,114,000 $ 3,805,000 $ 1,841,000 $ 10,196,000
Summary of Risk Ratings for Loans	The following table summarizes the risk ratings for the Company's commercial real estate, commercial construction, commercial other, and municipal loans as of March 31, 2016 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 6,000 $ — $ 990,000 $ — $ 996,000 2 Above Average 27,586,000 55,000 7,707,000 17,331,000 52,679,000 3 Satisfactory 59,080,000 2,898,000 31,629,000 1,711,000 95,318,000 4 Average 129,432,000 11,926,000 67,550,000 — 208,908,000 5 Watch 34,025,000 5,109,000 20,345,000 — 59,479,000 6 OAEM 9,821,000 — 2,490,000 — 12,311,000 7 Substandard 19,733,000 150,000 2,918,000 — 22,801,000 8 Doubtful — — — — — Total $ 279,683,000 $ 20,138,000 $ 133,629,000 $ 19,042,000 $ 452,492,000 The following table summarizes the risk ratings for the Company's commercial real estate, commercial construction, commercial other, and municipal loans as of December 31, 2015 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 6,000 $ — $ 1,256,000 $ — $ 1,262,000 2 Above Average 29,176,000 56,000 7,506,000 18,321,000 55,059,000 3 Satisfactory 52,821,000 2,057,000 28,787,000 1,430,000 85,095,000 4 Average 122,071,000 18,070,000 67,301,000 — 207,442,000 5 Watch 36,075,000 4,490,000 18,135,000 — 58,700,000 6 OAEM 9,742,000 — 2,410,000 — 12,152,000 7 Substandard 19,571,000 208,000 2,946,000 — 22,725,000 8 Doubtful — — — — — Total $ 269,462,000 $ 24,881,000 $ 128,341,000 $ 19,751,000 $ 442,435,000 The following table summarizes the risk ratings for the Company's commercial real estate, commercial construction, commercial other, and municipal loans as of March 31, 2015 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 11,000 $ — $ 344,000 $ — $ 355,000 2 Above Average 11,599,000 766,000 8,282,000 24,687,000 45,334,000 3 Satisfactory 52,828,000 2,227,000 24,758,000 1,590,000 81,403,000 4 Average 108,480,000 25,867,000 55,120,000 — 189,467,000 5 Watch 36,816,000 2,567,000 17,642,000 — 57,025,000 6 OAEM 9,670,000 2,509,000 1,669,000 — 13,848,000 7 Substandard 22,617,000 747,000 7,640,000 — 31,004,000 8 Doubtful — — — — — Total $ 242,021,000 $ 34,683,000 $ 115,455,000 $ 26,277,000 $ 418,436,000
Allowance for Loan Losses Transactions	The following table presents allowance for loan losses activity by class for the three months ended March 31, 2016 , and allowance for loan loss balances by class and related loan balances by class as of March 31, 2016 : Commercial Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction For the three months ended March 31, 2016 Beginning balance $ 3,120,000 $ 580,000 $ 1,452,000 $ 17,000 $ 1,391,000 $ 24,000 $ 893,000 $ 566,000 $ 1,873,000 $ 9,916,000 Charge offs — 58,000 — — 20,000 — 49,000 63,000 — 190,000 Recoveries — — 20,000 — 65,000 — 1,000 32,000 — 118,000 Provision (credit) 404,000 (177,000 ) 204,000 — 38,000 9,000 60,000 119,000 (282,000 ) 375,000 Ending balance $ 3,524,000 $ 345,000 $ 1,676,000 $ 17,000 $ 1,474,000 $ 33,000 $ 905,000 $ 654,000 $ 1,591,000 $ 10,219,000 Allowance for loan losses as of March 31, 2016 Ending balance specifically evaluated for impairment $ 69,000 $ 96,000 $ 21,000 $ — $ 384,000 $ — $ 29,000 $ — $ — $ 599,000 Ending balance collectively evaluated for impairment $ 3,455,000 $ 249,000 $ 1,655,000 $ 17,000 $ 1,090,000 $ 33,000 $ 876,000 $ 654,000 $ 1,591,000 $ 9,620,000 Related loan balances as of March 31, 2016 Ending balance $ 279,683,000 $ 20,138,000 $ 133,629,000 $ 19,042,000 $ 405,495,000 $ 11,754,000 $ 110,249,000 $ 24,952,000 $ — $ 1,004,942,000 Ending balance specifically evaluated for impairment $ 10,510,000 $ 967,000 $ 1,185,000 $ — $ 14,540,000 $ — $ 1,408,000 $ — $ — $ 28,610,000 Ending balance collectively evaluated for impairment $ 269,173,000 $ 19,171,000 $ 132,444,000 $ 19,042,000 $ 390,955,000 $ 11,754,000 $ 108,841,000 $ 24,952,000 $ — $ 976,332,000 The following table presents allowance for loan losses activity by class for the year-ended December 31, 2015 and allowance for loan loss balances by class and related loan balances by class as of December 31, 2015 : Commercial Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction For the year ended December 31, 2015 Beginning balance $ 3,532,000 $ 823,000 $ 1,505,000 $ 15,000 $ 1,185,000 $ 20,000 $ 1,060,000 $ 542,000 $ 1,662,000 $ 10,344,000 Charge offs 280,000 9,000 732,000 — 420,000 — 582,000 350,000 — 2,373,000 Recoveries 2,000 1,000 88,000 — 152,000 — 31,000 121,000 — 395,000 Provision (credit) (134,000 ) (235,000 ) 591,000 2,000 474,000 4,000 384,000 253,000 211,000 1,550,000 Ending balance $ 3,120,000 $ 580,000 $ 1,452,000 $ 17,000 $ 1,391,000 $ 24,000 $ 893,000 $ 566,000 $ 1,873,000 $ 9,916,000 Allowance for loan losses as of December 31, 2015 Ending balance specifically evaluated for impairment $ 89,000 $ 302,000 $ 8,000 $ — $ 326,000 $ — $ 29,000 $ — $ — $ 754,000 Ending balance collectively evaluated for impairment $ 3,031,000 $ 278,000 $ 1,444,000 $ 17,000 $ 1,065,000 $ 24,000 $ 864,000 $ 566,000 $ 1,873,000 $ 9,162,000 Related loan balances as of December 31, 2015 Ending balance $ 269,462,000 $ 24,881,000 $ 128,341,000 $ 19,751,000 $ 403,030,000 $ 8,451,000 $ 110,202,000 $ 24,520,000 $ — $ 988,638,000 Ending balance specifically evaluated for impairment $ 10,717,000 $ 1,026,000 $ 1,234,000 $ — $ 15,088,000 $ — $ 1,466,000 $ — $ — $ 29,531,000 Ending balance collectively evaluated for impairment $ 258,745,000 $ 23,855,000 $ 127,107,000 $ 19,751,000 $ 387,942,000 $ 8,451,000 $ 108,736,000 $ 24,520,000 $ — $ 959,107,000 The following table presents allowance for loan losses activity by class for the three months ended March 31, 2015 , and allowance for loan loss balances by class and related loan balances by class as of March 31, 2015 : Commercial Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction For the three months ended March 31, 2015 Beginning balance $ 3,532,000 $ 823,000 $ 1,505,000 $ 15,000 $ 1,185,000 $ 20,000 $ 1,060,000 $ 542,000 $ 1,662,000 $ 10,344,000 Charge offs 122,000 — 2,000 — 83,000 — 447,000 62,000 — 716,000 Recoveries — — 4,000 — 6,000 — 22,000 36,000 — 68,000 Provision (credit) (293,000 ) (16,000 ) 207,000 1,000 — 3,000 409,000 10,000 179,000 500,000 Ending balance $ 3,117,000 $ 807,000 $ 1,714,000 $ 16,000 $ 1,108,000 $ 23,000 $ 1,044,000 $ 526,000 $ 1,841,000 $ 10,196,000 Allowance for loan losses as of March 31, 2015 Ending balance specifically evaluated for impairment $ 248,000 $ 396,000 $ 347,000 $ — $ 421,000 $ — $ 24,000 $ — $ — $ 1,436,000 Ending balance collectively evaluated for impairment $ 2,869,000 $ 411,000 $ 1,367,000 $ 16,000 $ 687,000 $ 23,000 $ 1,020,000 $ 526,000 $ 1,841,000 $ 8,760,000 Related loan balances as of March 31, 2015 Ending balance $ 242,021,000 $ 34,683,000 $ 115,455,000 $ 26,277,000 $ 383,869,000 $ 13,036,000 $ 104,100,000 $ 19,728,000 $ — $ 939,169,000 Ending balance specifically evaluated for impairment $ 12,705,000 $ 1,380,000 $ 2,721,000 $ — $ 16,348,000 $ — $ 1,654,000 $ 25,000 $ — $ 34,833,000 Ending balance collectively evaluated for impairment $ 229,316,000 $ 33,303,000 $ 112,734,000 $ 26,277,000 $ 367,521,000 $ 13,036,000 $ 102,446,000 $ 19,703,000 $ — $ 904,336,000

Stock Options and Stock-Based28

Stock Options and Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Nonvested Restricted Stock Units Activity	As of March 31, 2016 , 108,710 shares of restricted stock had been granted under the 2010 Plan, of which 67,064 shares remain restricted as of March 31, 2016 as detailed in the following table: Year Granted Vesting Term (In Years) Shares Remaining Term (In Years) 2012 5.0 7,996 0.8 2013 5.0 14,776 1.8 2014 5.0 10,422 2.8 2015 5.0 12,023 3.8 2016 1.0 6,832 0.8 2016 5.0 15,015 4.8 67,064 2.8

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2016
Earnings Per Share [Abstract]
Basic and diluted earnings per share (EPS)	The following table sets forth the computation of basic and diluted earnings per share (EPS) for the three months ended March 31, 2016 and 2015 : Income (Numerator) Shares (Denominator) Per-Share Amount For the three months ended March 31, 2016 Net income as reported $ 4,503,000 Basic EPS: Income available to common shareholders 4,503,000 10,699,440 $ 0.42 Effect of dilutive securities: restricted stock and warrants 95,672 Diluted EPS: Income available to common shareholders plus assumed conversions $ 4,503,000 10,795,112 $ 0.42 For the three months ended March 31, 2015 Net income as reported $ 4,175,000 Basic EPS: Income available to common shareholders 4,175,000 10,665,059 $ 0.39 Effect of dilutive securities: restricted stock and warrants 66,430 Diluted EPS: Income available to common shareholders plus assumed conversions $ 4,175,000 10,731,489 $ 0.39
Number of options and warrants outstanding and amount above or below the strike price	The following table presents the number of options and warrants outstanding as of March 31, 2016 and 2015 and the amount for which the average market price at period end is above or below the strike price: Outstanding In-the-Money Out-of-the-Money For the three months ended March 31, 2016 Warrants to private parties 226,819 226,819 — Total dilutive securities 226,819 226,819 — For the three months ended March 31, 2015 Warrants issued to Treasury 225,904 225,904 — Total dilutive securities 225,904 225,904 —

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2016
General Discussion of Pension and Other Postretirement Benefits [Abstract]
Accumulated post-retirement benefit obligation, funded status, net periodic benefit cost and assumptions used	The following table sets forth the accumulated postretirement benefit obligation and funded status: At or for the three months ended March 31, 2016 2015 Change in benefit obligation Benefit obligation at beginning of year $ 1,967,000 $ 1,928,000 Service cost — — Interest cost 21,000 18,000 Benefits paid (30,000 ) (26,000 ) Benefit obligation at end of period $ 1,958,000 $ 1,920,000 Funded status Benefit obligation at end of period $ (1,958,000 ) $ (1,920,000 ) Unamortized loss 240,000 192,000 Accrued benefit cost at end of period $ (1,718,000 ) $ (1,728,000 )
Schedule of net benefit costs	The following table sets forth the net periodic pension cost: For the three months ended March 31, 2016 2015 Components of net periodic benefit cost Service cost $ — $ — Interest cost 21,000 18,000 Net periodic benefit cost $ 21,000 $ 18,000
Schedule of net periodic benefit cost not yet recognized	Amounts not yet reflected in net periodic benefit cost and included in accumulated other comprehensive income (loss) are as follows: March 31, December 31, 2015 March 31, Unamortized net actuarial loss $ (240,000 ) $ (240,000 ) $ (192,000 ) Deferred tax benefit at 35% 84,000 84,000 67,000 Net unrecognized postretirement benefits included in accumulated other comprehensive income (loss) $ (156,000 ) $ (156,000 ) $ (125,000 )

Other Comprehensive Income (L31

Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2016
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table summarizes activity in the unrealized gain or loss on available for sale securities included in other comprehensive income (loss) for the three months ended March 31, 2016 and 2015 . For the three months ended March 31, 2016 2015 Balance at beginning of period $ 1,123,000 $ 2,522,000 Unrealized gains arising during the period 3,385,000 1,483,000 Reclassification of realized gains during the period (536,000 ) (1,395,000 ) Related deferred taxes (997,000 ) (31,000 ) Net change 1,852,000 57,000 Balance at end of period $ 2,975,000 $ 2,579,000 The following table summarizes activity in the unrealized gain or loss on postretirement benefits included in other comprehensive income (loss) for the three months ended March 31, 2016 and 2015 . For the three months ended March 31, 2016 2015 Unrecognized postretirement benefits at beginning of period $ (156,000 ) $ (125,000 ) Amortization of unrecognized transition obligation — — Change in unamortized net actuarial gain (loss) — — Related deferred taxes — — Unrecognized postretirement benefits at end of period $ (156,000 ) $ (125,000 ) The following table summarizes activity in the unrealized loss on securities transferred from available for sale to held to maturity included in other comprehensive income (loss) for the three months ended March 31, 2016 and 2015 . For the three months ended March 31, 2016 2015 Balance at beginning of period $ (112,000 ) $ (48,000 ) Amortization of net unrealized losses (17,000 ) (14,000 ) Related deferred taxes 6,000 (5,000 ) Net change (11,000 ) (19,000 ) Balance at end of period $ (123,000 ) $ (67,000 )

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	3 Months Ended
	Mar. 31, 2016
Transfers and Servicing [Abstract]
Reconciliation of Mortgage Servicing Assets	Mortgage servicing rights are included in other assets and detailed in the following table: March 31, December 31, March 31, Mortgage servicing rights $ 5,747,000 $ 5,747,000 $ 6,103,000 Accumulated amortization (4,716,000 ) (4,619,000 ) (5,053,000 ) Impairment reserve (107,000 ) (35,000 ) (47,000 ) $ 924,000 $ 1,093,000 $ 1,003,000

Certificates of Deposit (Tables

Certificates of Deposit (Tables)	3 Months Ended
	Mar. 31, 2016
Banking and Thrift [Abstract]
Certificates of deposit	The following table represents the breakdown of certificates of deposit at March 31, 2016 and 2015 , and at December 31, 2015 : March 31, 2016 December 31, 2015 March 31, 2015 Certificates of deposit < $100,000 $ 197,006,000 $ 158,529,000 $ 137,166,000 Certificates $100,000 to $250,000 226,644,000 175,077,000 210,657,000 Certificates $250,000 and over 49,062,000 37,376,000 50,334,000 $ 472,712,000 $ 370,982,000 $ 398,157,000

Fair Value (Tables)

Fair Value (Tables)	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Assets and liabilities measured on recurring basis measured at fair value	The following tables present the balances of assets and liabilities that were measured at fair value on a recurring basis as of March 31, 2016 , December 31, 2015 and March 31, 2015 . At March 31, 2016 Level 1 Level 2 Level 3 Total Securities available for sale Mortgage-backed securities $ — $ 193,657,000 $ — $ 193,657,000 State and political subdivisions — 19,904,000 — 19,904,000 Other equity securities — 3,164,000 — 3,164,000 Total assets $ — $ 216,725,000 $ — $ 216,725,000 At December 31, 2015 Level 1 Level 2 Level 3 Total Securities available for sale Mortgage-backed securities $ — $ 195,110,000 $ — $ 195,110,000 State and political subdivisions — 24,506,000 — 24,506,000 Other equity securities — 3,423,000 — 3,423,000 Total assets $ — $ 223,039,000 $ — $ 223,039,000 At March 31, 2015 Level 1 Level 2 Level 3 Total Securities available for sale Mortgage-backed securities $ — $ 127,617,000 $ — $ 127,617,000 State and political subdivisions — 25,598,000 — 25,598,000 Other equity securities — 3,102,000 — 3,102,000 Total assets $ — $ 156,317,000 $ — $ 156,317,000
Assets and liabilities measured on non-recurring basis measured at fair value	The following tables include assets measured at fair value on a nonrecurring basis that have had a fair value adjustment since their initial recognition. Other real estate owned is presented net of an allowance of $130,000 , $162,000 and $387,000 at March 31, 2016 , December 31, 2015 , and March 31, 2015 , respectively. Only collateral-dependent impaired loans with a related specific allowance for loan losses or a partial charge off are included in impaired loans for purposes of fair value disclosures. Impaired loans below are presented net of specific allowances of $158,000 , $292,000 and $799,000 at March 31, 2016 , December 31, 2015 , and March 31, 2015 , respectively. At March 31, 2016 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 1,592,000 $ — $ 1,592,000 Impaired loans — 879,000 — 879,000 Total assets $ — $ 2,471,000 $ — $ 2,471,000 At December 31, 2015 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 1,532,000 $ — $ 1,532,000 Impaired loans — 699,000 — 699,000 Total assets $ — $ 2,231,000 $ — $ 2,231,000 At March 31, 2015 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 2,899,000 $ — $ 2,899,000 Impaired loans — 1,439,000 — 1,439,000 Total assets $ — $ 4,338,000 $ — $ 4,338,000
Estimated fair value of financial instruments	The carrying amount and estimated fair values for financial instruments as of March 31, 2015 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 13,855,000 $ 13,855,000 $ 13,855,000 $ — $ — Interest bearing deposits in other banks 336,000 336,000 336,000 — — Securities available for sale 156,317,000 156,317,000 — 156,317,000 — Securities to be held to maturity 262,455,000 267,247,000 — 267,247,000 — Restricted equity securities 13,912,000 13,912,000 — 13,912,000 — Loans (net of allowance for loan losses) Commercial Real estate 238,218,000 236,340,000 — 184,000 236,156,000 Construction 33,698,000 33,432,000 — — 33,432,000 Other 113,363,000 113,409,000 — 9,000 113,400,000 Municipal 26,257,000 26,844,000 — — 26,844,000 Residential Term 382,517,000 389,582,000 — 1,018,000 388,564,000 Construction 13,008,000 12,988,000 — — 12,988,000 Home equity line of credit 102,826,000 102,302,000 — 228,000 102,074,000 Consumer 19,086,000 19,259,000 — — 19,259,000 Total loans 928,973,000 934,156,000 — 1,439,000 932,717,000 Mortgage servicing rights 1,003,000 1,746,000 — 1,746,000 — Accrued interest receivable 5,724,000 5,724,000 — 5,724,000 — Financial liabilities Demand deposits $ 100,939,000 $ 99,935,000 $ — $ 99,935,000 $ — NOW deposits 199,099,000 189,139,000 — 189,139,000 — Money market deposits 101,292,000 87,816,000 — 87,816,000 — Savings deposits 167,338,000 151,345,000 — 151,345,000 — Local certificates of deposit 199,553,000 200,506,000 — 200,506,000 — National certificates of deposit 198,604,000 198,846,000 — 198,846,000 — Total deposits 966,825,000 927,587,000 — 927,587,000 — Repurchase agreements 85,657,000 81,693,000 — 81,693,000 — Federal Home Loan Bank advances 226,919,000 230,230,000 — 230,230,000 — Total borrowed funds 312,576,000 311,923,000 — 311,923,000 — Accrued interest payable 564,000 564,000 — 564,000 — The carrying amount and estimated fair values for financial instruments as of March 31, 2016 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 14,533,000 $ 14,533,000 $ 14,533,000 $ — $ — Interest bearing deposits in other banks 6,372,000 6,372,000 6,372,000 — — Securities available for sale 216,725,000 216,725,000 — 216,725,000 — Securities to be held to maturity 236,611,000 243,337,000 — 243,337,000 — Restricted equity securities 13,875,000 13,875,000 — 13,875,000 — Loans held for sale 224,000 224,000 — 224,000 — Loans (net of allowance for loan losses) Commercial Real estate 275,510,000 272,302,000 — — 272,302,000 Construction 19,729,000 19,499,000 — — 19,499,000 Other 131,644,000 131,637,000 — — 131,637,000 Municipal 19,022,000 19,994,000 — — 19,994,000 Residential Term 403,749,000 410,670,000 — 17,000 410,653,000 Construction 11,715,000 11,648,000 — — 11,648,000 Home equity line of credit 109,177,000 108,274,000 — 862,000 107,412,000 Consumer 24,177,000 24,153,000 — — 24,153,000 Total loans 994,723,000 998,177,000 — 879,000 997,298,000 Mortgage servicing rights 924,000 1,543,000 — 1,543,000 — Accrued interest receivable 6,271,000 6,271,000 — 6,271,000 — Financial liabilities Demand deposits $ 116,756,000 $ 116,614,000 $ — $ 116,614,000 $ — NOW deposits 240,112,000 230,934,000 — 230,934,000 — Money market deposits 74,643,000 68,221,000 — 68,221,000 — Savings deposits 205,218,000 187,346,000 — 187,346,000 — Local certificates of deposit 207,664,000 209,455,000 — 209,455,000 — National certificates of deposit 265,048,000 265,335,000 — 265,335,000 — Total deposits 1,109,441,000 1,077,905,000 — 1,077,905,000 — Repurchase agreements 91,399,000 88,442,000 — 88,442,000 — Federal Home Loan Bank advances 185,132,000 186,398,000 — 186,398,000 — Total borrowed funds 276,531,000 274,840,000 — 274,840,000 — Accrued interest payable 495,000 495,000 — 495,000 — The carrying amounts and estimated fair values for financial instruments as of December 31, 2015 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 14,299,000 $ 14,299,000 $ 14,299,000 $ — $ — Interest bearing deposits in other banks 4,013,000 4,013,000 4,013,000 — — Securities available for sale 223,039,000 223,039,000 — 223,039,000 — Securities to be held to maturity 240,023,000 243,123,000 — 243,123,000 — Restricted equity securities 14,257,000 14,257,000 — 14,257,000 — Loans held for sale 349,000 349,000 — 349,000 — Loans (net of allowance for loan losses) Commercial Real estate 265,616,000 262,763,000 — — 262,763,000 Construction 24,166,000 23,906,000 — — 23,906,000 Other 126,551,000 126,141,000 — — 126,141,000 Municipal 19,730,000 20,331,000 — — 20,331,000 Residential Term 401,315,000 405,315,000 — — 405,315,000 Construction 8,421,000 8,379,000 — — 8,379,000 Home equity line of credit 109,101,000 108,118,000 — 699,000 107,419,000 Consumer 23,822,000 23,754,000 — — 23,754,000 Total loans 978,722,000 978,707,000 — 699,000 978,008,000 Mortgage servicing rights 1,093,000 1,915,000 — 1,915,000 — Accrued interest receivable 4,912,000 4,912,000 — 4,912,000 — Financial liabilities Demand deposits $ 130,566,000 $ 125,651,000 $ — $ 125,651,000 $ — NOW deposits 242,638,000 224,627,000 — 224,627,000 — Money market deposits 92,994,000 82,050,000 — 82,050,000 — Savings deposits 206,009,000 181,010,000 — 181,010,000 — Local certificates of deposit 201,420,000 201,013,000 — 201,013,000 — National certificates of deposit 169,562,000 169,617,000 — 169,617,000 — Total deposits 1,043,189,000 983,968,000 — 983,968,000 — Repurchase agreements 87,103,000 82,168,000 — 82,168,000 — Federal Home Loan Bank advances 250,354,000 250,027,000 — 250,027,000 — Total borrowed funds 337,457,000 332,195,000 — 332,195,000 — Accrued interest payable 435,000 435,000 — 435,000 —

Investment Securities Amortized

Investment Securities Amortized Cost and Estimated Fair Value of Available for Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 212,148	$ 221,311	$ 152,350
Unrealized Gains	4,824	2,758	4,223
Unrealized Losses	(247)	(1,030)	(256)
Fair Value (Estimated)	216,725	223,039	156,317
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	190,025	194,563	124,969
Unrealized Gains	3,837	1,509	2,790
Unrealized Losses	(205)	(962)	(142)
Fair Value (Estimated)	193,657	195,110	127,617
State and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	18,975	23,367	24,384
Unrealized Gains	948	1,201	1,328
Unrealized Losses	(19)	(62)	(114)
Fair Value (Estimated)	19,904	24,506	25,598
Other equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,148	3,381	2,997
Unrealized Gains	39	48	105
Unrealized Losses	(23)	(6)	0
Fair Value (Estimated)	$ 3,164	$ 3,423	$ 3,102

Investment Securities Amortiz36

Investment Securities Amortized Cost and Estimated Fair Value of Held to Maturity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 236,611	$ 240,023	$ 262,455
Unrealized Gains	6,868	5,545	5,949
Unrealized Losses	(142)	(2,445)	(1,157)
Fair Value (Estimated)	243,337	243,123	267,247
U.S. Government-sponsored agencies
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	68,009	71,000	82,974
Unrealized Gains	37	40	108
Unrealized Losses	(107)	(2,284)	(912)
Fair Value (Estimated)	67,939	68,756	82,170
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	39,828	42,193	53,228
Unrealized Gains	1,675	1,305	2,030
Unrealized Losses	(35)	(136)	(116)
Fair Value (Estimated)	41,468	43,362	55,142
State and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	124,474	122,530	125,953
Unrealized Gains	5,156	4,200	3,811
Unrealized Losses	0	(25)	(129)
Fair Value (Estimated)	129,630	126,705	129,635
Corporate securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	4,300	4,300	300
Unrealized Gains	0	0	0
Unrealized Losses	0	0	0
Fair Value (Estimated)	$ 4,300	$ 4,300	$ 300

Investment Securities Amortiz37

Investment Securities Amortized Cost and Estimated Fair Value of Restricted Equity Securities (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Restricted Equity Securities [Line Items]
Amortized Cost	$ 13,875,000	$ 14,257,000	$ 13,912,000
Unrealized Gains	0	0	0
Unrealized Losses	0	0	0
Fair Value (Estimated)	13,875,000	14,257,000	13,912,000
Federal Home Loan Bank Stock
Restricted Equity Securities [Line Items]
Amortized Cost	12,838,000	13,220,000	12,875,000
Unrealized Gains	0	0	0
Unrealized Losses	0	0	0
Fair Value (Estimated)	12,838,000	13,220,000	12,875,000
Federal Reserve Bank Stock
Restricted Equity Securities [Line Items]
Amortized Cost	1,037,000	1,037,000	1,037,000
Unrealized Gains	0	0	0
Unrealized Losses	0	0	0
Fair Value (Estimated)	$ 1,037,000	$ 1,037,000	$ 1,037,000

Investment Securities Contractu

Investment Securities Contractual Maturities of Investment Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in 1 year or less, Securities available for sale, Amortized Cost	$ 2,599	$ 527	$ 2,842
Due in 1 to 5 years, Securities available for sale, Amortized Cost	3,321	7,562	14,950
Due in 5 to 10 years, Securities available for sale, Amortized Cost	19,222	19,647	17,746
Due after 10 years, Securities available for sale, Amortized Cost	183,858	190,194	113,815
Equity securities, Amortized Cost	3,148	3,381	2,997
Amortized Cost	212,148	221,311	152,350
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in 1 year or less, Securities available for sale, Fair Value (Estimated)	2,633	530	2,858
Due in 1 to 5 years, Securities available for sale, Fair Value (Estimated)	3,390	7,727	15,231
Due in 5 to 10 years, Securities available for sale, Fair Value (Estimated)	19,946	20,055	18,110
Due after 10 years, Securities available for sale, Fair Value (Estimated)	187,592	191,304	117,016
Equity securities, Fair Value (Estimated)	3,164	3,423	3,102
Fair Value (Estimated)	216,725	223,039	156,317
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Due in 1 year or less, Securities available to be held to maturity, Amortized Cost	1,825	1,814	1,873
Due in 1 to 5 years, Securities to be held to maturity, Amortized Cost	6,709	6,306	12,050
Due in 5 to 10 years, Securities to be held to maturity, Amortized Cost	56,874	58,397	47,898
Due after 10 years, Securities to be held to maturity, Amortized Cost	171,203	173,506	200,634
Securities to be held to maturity, Amortized Cost	236,611	240,023	262,455
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in 1 year or less, Securities available to be held to maturity, Fair Value (Estimated)	1,847	1,850	1,899
Due in 1 to 5 years, Securities to be held to maturity, Fair Value (Estimated)	6,925	6,514	12,241
Due in 5 to 10 years, Securities to be held to maturity, Fair Value (Estimated)	58,932	60,196	49,930
Due after 10 years, Securities to be held to maturity, Fair Value (Estimated)	175,633	174,563	203,177
Fair Value (Estimated)	$ 243,337	$ 243,123	$ 267,247

Investment Securities Securitie

Investment Securities Securities Gains and Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales of securities	$ 8,868	$ 35,465
Gross realized gains	536	1,395
Gross realized losses	0	0
Net gain	536	1,395
Related income taxes	$ 188	$ 488

Investment Securities Temporari

Investment Securities Temporarily Impaired Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Fair Value (Estimated) (Less than 12 months)	$ 17,882	$ 168,818	$ 67,483
Unrealized Loss (Less than 12 months)	(176)	(2,525)	(1,052)
Fair Value (Estimated) (12 months or more)	8,282	21,048	12,609
Unrealized Loss (12 months or more)	(213)	(950)	(361)
Fair Value (Estimated)	26,164	189,866	80,092
Unrealized Losses	(389)	(3,475)	(1,413)
U.S. Government-sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Fair Value (Estimated) (Less than 12 months)	0	45,311	36,459
Unrealized Loss (Less than 12 months)	0	(1,469)	(595)
Fair Value (Estimated) (12 months or more)	4,893	17,185	10,903
Unrealized Loss (12 months or more)	(107)	(815)	(317)
Fair Value (Estimated)	4,893	62,496	47,362
Unrealized Losses	(107)	(2,284)	(912)
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Fair Value (Estimated) (Less than 12 months)	17,125	120,915	20,634
Unrealized Loss (Less than 12 months)	(170)	(1,027)	(256)
Fair Value (Estimated) (12 months or more)	1,866	910	65
Unrealized Loss (12 months or more)	(70)	(71)	(2)
Fair Value (Estimated)	18,991	121,825	20,699
Unrealized Losses	(240)	(1,098)	(258)
State and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Fair Value (Estimated) (Less than 12 months)	522	2,528	10,390
Unrealized Loss (Less than 12 months)	0	(24)	(201)
Fair Value (Estimated) (12 months or more)	1,417	2,901	1,641
Unrealized Loss (12 months or more)	(19)	(63)	(42)
Fair Value (Estimated)	1,939	5,429	12,031
Unrealized Losses	(19)	(87)	$ (243)
Other equity securities
Schedule of Available-for-sale Securities [Line Items]
Fair Value (Estimated) (Less than 12 months)	235	64
Unrealized Loss (Less than 12 months)	(6)	(5)
Fair Value (Estimated) (12 months or more)	106	52
Unrealized Loss (12 months or more)	(17)	(1)
Fair Value (Estimated)	341	116
Unrealized Losses	$ (23)	$ (6)

Investment Securities Additiona

Investment Securities Additional Information (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016USD ($)securitystate	Mar. 31, 2015USD ($)security	Dec. 31, 2015USD ($)security	Sep. 30, 2014USD ($)
Investments, Debt and Equity Securities [Abstract]
Fair value of securities pledged as collateral	$ 202,296	$ 224,133	$ 201,879
Number of securities temporarily impaired (security) | security	34	55	78
Number of securities temporarily impaired (security) | security	12	5	15
Length of time securities temporarily impaired (months)	12 months	12 months	12 months
Amortized cost of transferred securities from available-for-sale to held-to-maturity				$ 89,780
Fair value of transferred securities from available-for-sale to held-to-maturity				89,757
Net unrealized loss, net of taxes on transferred securities				$ 15
Other comprehensive income (loss), unrealized loss on transferred securities	$ (123)	$ (67)	$ (112)
Number of states in New England where FHLB serve (state) | state	6
Federal Home Loan Bank Stock	$ 12,838	$ 12,875	$ 13,220

Loans - Narrative (Details)

Loans - Narrative (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016USD ($)loan	Mar. 31, 2015USD ($)loan	Dec. 31, 2015USD ($)loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net deferred loan costs	$ 4,053	$ 2,933	$ 3,686
Qualifying first mortgage loans	277,905	240,760	279,463
Loans pledged as collateral	$ 258,369	$ 244,170	$ 243,578
Loans classified as TDR | loan	82	90	84
Value of loans classified as TDR	$ 23,628	$ 26,524	$ 23,923
Number of TDR loans more than 30 days past due | loan	6	8
Value of TDR loans more than 30 days past due	$ 890	$ 1,121
Number of loans placed on TDR status | loan	0	0
Number of TDR loans involved in bankruptcy | loan	6
Value of TDR loans involved in bankruptcy	$ 1,073
Number of TDR loans on non-accrual status | loan	12
Value of TDR loans on non-accrual status	$ 1,703
Number of TDR loans in the process of foreclosure | loan	2
Value of TDR loans in the process of foreclosure	$ 215
Number of mortgage loans in the process of foreclosure | loan	14	16
Value of mortgage loans in the process of foreclosure	$ 1,399	$ 1,677
Unallocated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of days past due	30 days	30 days

Loans - Loan Portfolio (Details

Loans - Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Schedule of Financing Receivables [Line Items]
Loans	$ 1,004,942	$ 988,638	$ 939,169
Percentage of loans receivable, by type	100.00%	100.00%	100.00%
Commercial real estate
Schedule of Financing Receivables [Line Items]
Loans	$ 279,683	$ 269,462	$ 242,021
Percentage of loans receivable, by type	27.80%	27.30%	25.80%
Commercial construction
Schedule of Financing Receivables [Line Items]
Loans	$ 20,138	$ 24,881	$ 34,683
Percentage of loans receivable, by type	2.00%	2.50%	3.70%
Commercial other
Schedule of Financing Receivables [Line Items]
Loans	$ 133,629	$ 128,341	$ 115,455
Percentage of loans receivable, by type	13.30%	13.00%	12.30%
Municipal
Schedule of Financing Receivables [Line Items]
Loans	$ 19,042	$ 19,751	$ 26,277
Percentage of loans receivable, by type	1.90%	2.00%	2.80%
Residential term
Schedule of Financing Receivables [Line Items]
Loans	$ 405,495	$ 403,030	$ 383,869
Percentage of loans receivable, by type	40.30%	40.70%	40.80%
Residential construction
Schedule of Financing Receivables [Line Items]
Loans	$ 11,754	$ 8,451	$ 13,036
Percentage of loans receivable, by type	1.20%	0.90%	1.40%
Home equity line of credit
Schedule of Financing Receivables [Line Items]
Loans	$ 110,249	$ 110,202	$ 104,100
Percentage of loans receivable, by type	11.00%	11.10%	11.10%
Consumer
Schedule of Financing Receivables [Line Items]
Loans	$ 24,952	$ 24,520	$ 19,728
Percentage of loans receivable, by type	2.50%	2.50%	2.10%

Loans - Past-due Status of Loan

Loans - Past-due Status of Loans by Class (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Schedule of Financing Receivables [Line Items]
All Past Due	$ 8,247	$ 8,287	$ 11,958
Current	996,695	980,351	927,211
Total	1,004,942	988,638	939,169
90 Days & Accruing	452	136	184
Commercial real estate
Schedule of Financing Receivables [Line Items]
All Past Due	1,255	884	798
Current	278,428	268,578	241,223
Total	279,683	269,462	242,021
90 Days & Accruing	0	0	0
Commercial construction
Schedule of Financing Receivables [Line Items]
All Past Due	150	273	229
Current	19,988	24,608	34,454
Total	20,138	24,881	34,683
90 Days & Accruing	0	0	0
Commercial other
Schedule of Financing Receivables [Line Items]
All Past Due	433	328	994
Current	133,196	128,013	114,461
Total	133,629	128,341	115,455
90 Days & Accruing	0	25	0
Municipal
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
Current	19,042	19,751	26,277
Total	19,042	19,751	26,277
90 Days & Accruing	0	0	0
Residential term
Schedule of Financing Receivables [Line Items]
All Past Due	4,783	5,187	8,243
Current	400,712	397,843	375,626
Total	405,495	403,030	383,869
90 Days & Accruing	411	100	100
Residential construction
Schedule of Financing Receivables [Line Items]
All Past Due	0	368	0
Current	11,754	8,083	13,036
Total	11,754	8,451	13,036
90 Days & Accruing	0	0	0
Home equity line of credit
Schedule of Financing Receivables [Line Items]
All Past Due	1,383	1,108	1,457
Current	108,866	109,094	102,643
Total	110,249	110,202	104,100
90 Days & Accruing	0	0	0
Consumer
Schedule of Financing Receivables [Line Items]
All Past Due	243	139	237
Current	24,709	24,381	19,491
Total	24,952	24,520	19,728
90 Days & Accruing	41	11	84
30-59 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	3,966	2,122	5,219
30-59 Days Past Due | Commercial real estate
Schedule of Financing Receivables [Line Items]
All Past Due	428	603	491
30-59 Days Past Due | Commercial construction
Schedule of Financing Receivables [Line Items]
All Past Due	0	35	21
30-59 Days Past Due | Commercial other
Schedule of Financing Receivables [Line Items]
All Past Due	323	303	135
30-59 Days Past Due | Municipal
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
30-59 Days Past Due | Residential term
Schedule of Financing Receivables [Line Items]
All Past Due	2,321	450	3,948
30-59 Days Past Due | Residential construction
Schedule of Financing Receivables [Line Items]
All Past Due	0	368	0
30-59 Days Past Due | Home equity line of credit
Schedule of Financing Receivables [Line Items]
All Past Due	718	261	488
30-59 Days Past Due | Consumer
Schedule of Financing Receivables [Line Items]
All Past Due	176	102	136
60-89 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	696	2,379	1,561
60-89 Days Past Due | Commercial real estate
Schedule of Financing Receivables [Line Items]
All Past Due	376	0	0
60-89 Days Past Due | Commercial construction
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
60-89 Days Past Due | Commercial other
Schedule of Financing Receivables [Line Items]
All Past Due	110	0	2
60-89 Days Past Due | Municipal
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
60-89 Days Past Due | Residential term
Schedule of Financing Receivables [Line Items]
All Past Due	62	2,098	1,438
60-89 Days Past Due | Residential construction
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
60-89 Days Past Due | Home equity line of credit
Schedule of Financing Receivables [Line Items]
All Past Due	122	255	105
60-89 Days Past Due | Consumer
Schedule of Financing Receivables [Line Items]
All Past Due	26	26	16
Equal to Greater than 90 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	3,585	3,786	5,178
Equal to Greater than 90 Days Past Due | Commercial real estate
Schedule of Financing Receivables [Line Items]
All Past Due	451	281	307
Equal to Greater than 90 Days Past Due | Commercial construction
Schedule of Financing Receivables [Line Items]
All Past Due	150	238	208
Equal to Greater than 90 Days Past Due | Commercial other
Schedule of Financing Receivables [Line Items]
All Past Due	0	25	857
Equal to Greater than 90 Days Past Due | Municipal
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
Equal to Greater than 90 Days Past Due | Residential term
Schedule of Financing Receivables [Line Items]
All Past Due	2,400	2,639	2,857
Equal to Greater than 90 Days Past Due | Residential construction
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
Equal to Greater than 90 Days Past Due | Home equity line of credit
Schedule of Financing Receivables [Line Items]
All Past Due	543	592	864
Equal to Greater than 90 Days Past Due | Consumer
Schedule of Financing Receivables [Line Items]
All Past Due	$ 41	$ 11	$ 85

Loans - Nonaccrual Loans (Detai

Loans - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	$ 6,687	$ 7,372	$ 10,327
Commercial real estate
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	920	915	1,609
Commercial construction
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	180	238	208
Commercial other
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	69	66	932
Municipal
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	0	0	0
Residential term
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	4,677	5,260	6,514
Residential construction
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	0	0	0
Home equity line of credit
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	841	893	1,039
Consumer
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	$ 0	$ 0	$ 25

Loans - Impaired Loans by Class

Loans - Impaired Loans by Class (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Schedule of Financing Receivables [Line Items]
Recorded Investment	$ 28,610	$ 34,833	$ 29,531
Unpaid Principal Balance	31,078	38,244	31,906
Related Allowance	599	1,436	754
Average Recorded Investment	28,973	35,121	32,698
Recognized Interest Income	275	311	1,220
With No Related Allowance
Schedule of Financing Receivables [Line Items]
Recorded Investment	20,544	23,990	20,889
Unpaid Principal Balance	22,651	26,136	22,947
Related Allowance	0	0	0
Average Recorded Investment	20,490	25,806	22,808
Recognized Interest Income	187	213	839
With an Allowance Recorded
Schedule of Financing Receivables [Line Items]
Recorded Investment	8,066	10,843	8,642
Unpaid Principal Balance	8,427	12,108	8,959
Related Allowance	599	1,436	754
Average Recorded Investment	8,483	9,315	9,890
Recognized Interest Income	88	98	381
Commercial real estate
Schedule of Financing Receivables [Line Items]
Recorded Investment	10,510	12,705	10,717
Unpaid Principal Balance	10,925	13,451	11,123
Related Allowance	69	248	89
Average Recorded Investment	10,620	12,895	12,056
Recognized Interest Income	115	120	450
Commercial real estate | With No Related Allowance
Schedule of Financing Receivables [Line Items]
Recorded Investment	7,381	9,062	7,173
Unpaid Principal Balance	7,712	9,496	7,496
Related Allowance	0	0	0
Average Recorded Investment	7,221	10,899	8,990
Recognized Interest Income	79	88	301
Commercial real estate | With an Allowance Recorded
Schedule of Financing Receivables [Line Items]
Recorded Investment	3,129	3,643	3,544
Unpaid Principal Balance	3,213	3,955	3,627
Related Allowance	69	248	89
Average Recorded Investment	3,399	1,996	3,066
Recognized Interest Income	36	32	149
Commercial construction
Schedule of Financing Receivables [Line Items]
Recorded Investment	967	1,380	1,026
Unpaid Principal Balance	1,026	1,380	1,026
Related Allowance	96	396	302
Average Recorded Investment	1,006	1,372	1,156
Recognized Interest Income	9	13	45
Commercial construction | With No Related Allowance
Schedule of Financing Receivables [Line Items]
Recorded Investment	179	0	30
Unpaid Principal Balance	238	0	30
Related Allowance	0	0	0
Average Recorded Investment	80	0	3
Recognized Interest Income	1	0	1
Commercial construction | With an Allowance Recorded
Schedule of Financing Receivables [Line Items]
Recorded Investment	788	1,380	996
Unpaid Principal Balance	788	1,380	996
Related Allowance	96	396	302
Average Recorded Investment	926	1,372	1,153
Recognized Interest Income	8	13	44
Commercial other
Schedule of Financing Receivables [Line Items]
Recorded Investment	1,185	2,721	1,234
Unpaid Principal Balance	1,233	3,526	1,287
Related Allowance	21	347	8
Average Recorded Investment	1,201	2,792	2,149
Recognized Interest Income	8	16	81
Commercial other | With No Related Allowance
Schedule of Financing Receivables [Line Items]
Recorded Investment	1,097	2,305	1,163
Unpaid Principal Balance	1,137	2,411	1,210
Related Allowance	0	0	0
Average Recorded Investment	1,121	2,465	1,893
Recognized Interest Income	8	16	76
Commercial other | With an Allowance Recorded
Schedule of Financing Receivables [Line Items]
Recorded Investment	88	416	71
Unpaid Principal Balance	96	1,115	77
Related Allowance	21	347	8
Average Recorded Investment	80	327	256
Recognized Interest Income	0	0	5
Municipal
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	0	0
Unpaid Principal Balance	0	0	0
Related Allowance	0	0	0
Average Recorded Investment	0	0	0
Recognized Interest Income	0	0	0
Municipal | With No Related Allowance
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	0	0
Unpaid Principal Balance	0	0	0
Related Allowance	0	0	0
Average Recorded Investment	0	0	0
Recognized Interest Income	0	0	0
Municipal | With an Allowance Recorded
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	0	0
Unpaid Principal Balance	0	0	0
Related Allowance	0	0	0
Average Recorded Investment	0	0	0
Recognized Interest Income	0	0	0
Residential term
Schedule of Financing Receivables [Line Items]
Recorded Investment	14,540	16,348	15,088
Unpaid Principal Balance	15,806	17,606	16,350
Related Allowance	384	421	326
Average Recorded Investment	14,710	16,369	15,708
Recognized Interest Income	134	153	595
Residential term | With No Related Allowance
Schedule of Financing Receivables [Line Items]
Recorded Investment	10,543	11,235	11,122
Unpaid Principal Balance	11,541	12,243	12,157
Related Allowance	0	0	0
Average Recorded Investment	10,715	11,136	10,480
Recognized Interest Income	91	100	415
Residential term | With an Allowance Recorded
Schedule of Financing Receivables [Line Items]
Recorded Investment	3,997	5,113	3,966
Unpaid Principal Balance	4,265	5,363	4,193
Related Allowance	384	421	326
Average Recorded Investment	3,995	5,233	5,228
Recognized Interest Income	43	53	180
Residential construction
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	0	0
Unpaid Principal Balance	0	0	0
Related Allowance	0	0	0
Average Recorded Investment	0	0	0
Recognized Interest Income	0	0	0
Residential construction | With No Related Allowance
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	0	0
Unpaid Principal Balance	0	0	0
Related Allowance	0	0	0
Average Recorded Investment	0	0	0
Recognized Interest Income	0	0	0
Residential construction | With an Allowance Recorded
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	0	0
Unpaid Principal Balance	0	0	0
Related Allowance	0	0	0
Average Recorded Investment	0	0	0
Recognized Interest Income	0	0	0
Home equity line of credit
Schedule of Financing Receivables [Line Items]
Recorded Investment	1,408	1,654	1,466
Unpaid Principal Balance	2,088	2,253	2,120
Related Allowance	29	24	29
Average Recorded Investment	1,436	1,668	1,587
Recognized Interest Income	9	8	46
Home equity line of credit | With No Related Allowance
Schedule of Financing Receivables [Line Items]
Recorded Investment	1,344	1,363	1,401
Unpaid Principal Balance	2,023	1,958	2,054
Related Allowance	0	0	0
Average Recorded Investment	1,353	1,281	1,400
Recognized Interest Income	8	8	43
Home equity line of credit | With an Allowance Recorded
Schedule of Financing Receivables [Line Items]
Recorded Investment	64	291	65
Unpaid Principal Balance	65	295	66
Related Allowance	29	24	29
Average Recorded Investment	83	387	187
Recognized Interest Income	1	0	3
Consumer
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	25	0
Unpaid Principal Balance	0	28	0
Related Allowance	0	0	0
Average Recorded Investment	0	25	42
Recognized Interest Income	0	1	3
Consumer | With No Related Allowance
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	25	0
Unpaid Principal Balance	0	28	0
Related Allowance	0	0	0
Average Recorded Investment	0	25	42
Recognized Interest Income	0	1	3
Consumer | With an Allowance Recorded
Schedule of Financing Receivables [Line Items]
Recorded Investment	0	0	0
Unpaid Principal Balance	0	0	0
Related Allowance	0	0	0
Average Recorded Investment	0	0	0
Recognized Interest Income	$ 0	$ 0	$ 0

Loans - TDR's by Class and Spec

Loans - TDR's by Class and Specific Reserves (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016USD ($)loan	Mar. 31, 2015USD ($)loan	Dec. 31, 2015USD ($)loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	82	90	84
Balance	$ 23,628	$ 26,524	$ 23,923
Specific Reserves	$ 436	$ 695	$ 455
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	14	17	15
Balance	$ 10,133	$ 11,831	$ 10,350
Specific Reserves	$ 65	$ 133	$ 85
Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	1	1	1
Balance	$ 788	$ 1,172	$ 788
Specific Reserves	$ 96	$ 189	$ 94
Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	10	13	11
Balance	$ 1,116	$ 1,789	$ 1,168
Specific Reserves	$ 0	$ 0	$ 1
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	0	0	0
Balance	$ 0	$ 0	$ 0
Specific Reserves	$ 0	$ 0	$ 0
Residential term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	53	54	53
Balance	$ 10,856	$ 10,917	$ 10,875
Specific Reserves	$ 275	$ 351	$ 275
Residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	0	0	0
Balance	$ 0	$ 0	$ 0
Specific Reserves	$ 0	$ 0	$ 0
Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	4	5	4
Balance	$ 735	$ 815	$ 742
Specific Reserves	$ 0	$ 22	$ 0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	0	0	0
Balance	$ 0	$ 0	$ 0
Specific Reserves	$ 0	$ 0	$ 0

Loans - TDR's by Class and the

Loans - TDR's by Class and the Associated Specific Reserves (Details) $ in Thousands	Mar. 31, 2016USD ($)loan	Mar. 31, 2015USD ($)loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due | loan	6	8
Value of TDR loans more than 30 days past due	$ 890	$ 1,121
Specific reserve of TDR loans more than 30 days past due	$ 46	$ 22
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due | loan	1	0
Value of TDR loans more than 30 days past due	$ 155	$ 0
Specific reserve of TDR loans more than 30 days past due	$ 0	$ 0
Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due | loan	0	0
Value of TDR loans more than 30 days past due	$ 0	$ 0
Specific reserve of TDR loans more than 30 days past due	$ 0	$ 0
Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due | loan	0	0
Value of TDR loans more than 30 days past due	$ 0	$ 0
Specific reserve of TDR loans more than 30 days past due	$ 0	$ 0
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due | loan	0	0
Value of TDR loans more than 30 days past due	$ 0	$ 0
Specific reserve of TDR loans more than 30 days past due	$ 0	$ 0
Residential term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due | loan	5	7
Value of TDR loans more than 30 days past due	$ 735	$ 920
Specific reserve of TDR loans more than 30 days past due	$ 46	$ 0
Residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due | loan	0	0
Value of TDR loans more than 30 days past due	$ 0	$ 0
Specific reserve of TDR loans more than 30 days past due	$ 0	$ 0
Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due | loan	0	1
Value of TDR loans more than 30 days past due	$ 0	$ 201
Specific reserve of TDR loans more than 30 days past due	$ 0	$ 22
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due | loan	0	0
Value of TDR loans more than 30 days past due	$ 0	$ 0
Specific reserve of TDR loans more than 30 days past due	$ 0	$ 0

Allowance for Loan Losses Narra

Allowance for Loan Losses Narrative (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016USD ($)loan_class	Dec. 31, 2015USD ($)	Mar. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of classes in the loan portfolio (class) | loan_class	8
Allowance for loan and lease losses, percent	0.45%	0.45%
Allowance for loan and lease losses, period increase (decrease)	$ 117	$ 117
Allowance for loan losses	$ 10,219	$ 9,916	$ 10,196	$ 10,344
Allowance for loan losses as a percent of total loans	1.02%	1.00%	1.09%
Number of classes in the commercial loan portfolio (class) | loan_class	3
Residential loans typical loan to value range, high	80.00%
Construction loans accrual to company capital	21.80%
Constructions loan portfolio maximum to company capital	100.00%
Construction and non owner occupied commercial real estate	106.70%
Maximum loan portfolio to company capital	300.00%
Outstanding loans and commitments subject by independent consulting firm	50.00%
Number of classes in the residential loan portfolio (class) | loan_class	2
Loan value, lower range	75.00%
Collateralized consumer loans to individuals loan to value maximum, lower range	80.00%
Collateralized consumer loans to individuals loan to value maximum, higher range	90.00%
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Delinquent period before residential loans placed on non accrual status	120 days
Residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 33	$ 24	$ 23	$ 20
Delinquent period before residential loans placed on non accrual status	90 days
Unallocated Reserves
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 1,591	$ 1,873	$ 1,841
Percent of total reserve allowance accounted for by loan loss allowances	15.60%	18.90%

Allowance for Loan Losses - Fi

Allowance for Loan Losses - Financing Receivable and Allowance Element by Class (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 10,219	$ 9,916	$ 10,196	$ 10,344
Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	599	754	1,436
General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	3,481	2,858	3,114
Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	4,548	4,431	3,805
Unallocated Reserves
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,591	1,873	1,841
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	3,524	3,120	3,117	3,532
Commercial real estate | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	69	89	248
Commercial real estate | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,236	893	1,094
Commercial real estate | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	2,219	2,138	1,775
Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	345	580	807	823
Commercial construction | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	96	302	396
Commercial construction | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	89	82	157
Commercial construction | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	160	196	254
Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,676	1,452	1,714	1,505
Commercial other | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	21	8	347
Commercial other | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	592	425	521
Commercial other | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,063	1,019	846
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	17	17	16	15
Municipal | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses		0	0
Municipal | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses		0	0
Municipal | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	17	17	16
Residential term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,474	1,391	1,108	1,185
Residential term | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	384	326	421
Residential term | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	630	613	298
Residential term | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	460	452	389
Residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	33	24	23	20
Residential construction | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	0	0
Residential construction | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	19	14	10
Residential construction | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	14	10	13
Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	905	893	1,044	1,060
Home equity line of credit | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	29	29	24
Home equity line of credit | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	502	500	716
Home equity line of credit | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	374	364	304
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	654	566	526	542
Consumer | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	0	0
Consumer | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	413	331	318
Consumer | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	241	235	208
Unallocated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,591	1,873	1,841	$ 1,662
Unallocated | Unallocated Reserves
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 1,591	$ 1,873	$ 1,841

Allowance for Loan Losses - Ri

Allowance for Loan Losses - Risk Ratings by Segment (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	$ 452,492	$ 442,435	$ 418,436
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	279,683	269,462	242,021
Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	20,138	24,881	34,683
Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	133,629	128,341	115,455
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	19,042	19,751	26,277
1 Strong
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	996	1,262	355
1 Strong | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	6	6	11
1 Strong | Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
1 Strong | Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	990	1,256	344
1 Strong | Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
2 Above Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	52,679	55,059	45,334
2 Above Average | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	27,586	29,176	11,599
2 Above Average | Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	55	56	766
2 Above Average | Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	7,707	7,506	8,282
2 Above Average | Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	17,331	18,321	24,687
3 Satisfactory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	95,318	85,095	81,403
3 Satisfactory | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	59,080	52,821	52,828
3 Satisfactory | Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	2,898	2,057	2,227
3 Satisfactory | Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	31,629	28,787	24,758
3 Satisfactory | Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	1,711	1,430	1,590
4 Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	208,908	207,442	189,467
4 Average | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	129,432	122,071	108,480
4 Average | Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	11,926	18,070	25,867
4 Average | Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	67,550	67,301	55,120
4 Average | Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
5 Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	59,479	58,700	57,025
5 Watch | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	34,025	36,075	36,816
5 Watch | Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	5,109	4,490	2,567
5 Watch | Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	20,345	18,135	17,642
5 Watch | Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
6 OAEM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	12,311	12,152	13,848
6 OAEM | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	9,821	9,742	9,670
6 OAEM | Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	2,509
6 OAEM | Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	2,490	2,410	1,669
6 OAEM | Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
7 Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	22,801	22,725	31,004
7 Substandard | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	19,733	19,571	22,617
7 Substandard | Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	150	208	747
7 Substandard | Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	2,918	2,946	7,640
7 Substandard | Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
8 Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
8 Doubtful | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
8 Doubtful | Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
8 Doubtful | Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
8 Doubtful | Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	$ 0	$ 0	$ 0

Allowance for Loan Losses - Al

Allowance for Loan Losses - Allowance for Loan Loss Activity by Class (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 9,916	$ 10,344	$ 10,344
Charge offs	190	716	2,373
Recoveries	118	68	395
Provision for loan losses	375	500	1,550
Ending balance	10,219	10,196	9,916
Ending balance specifically evaluated for impairment	599	1,436	754
Ending balance collectively evaluated for impairment	9,620	8,760	9,162
Total	1,004,942	939,169	988,638
Ending balance specifically evaluated for impairment	28,610	34,833	29,531
Ending balance collectively evaluated for impairment	976,332	904,336	959,107
Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,120	3,532	3,532
Charge offs	0	122	280
Recoveries	0	0	2
Provision for loan losses	404	(293)	(134)
Ending balance	3,524	3,117	3,120
Ending balance specifically evaluated for impairment	69	248	89
Ending balance collectively evaluated for impairment	3,455	2,869	3,031
Total	279,683	242,021	269,462
Ending balance specifically evaluated for impairment	10,510	12,705	10,717
Ending balance collectively evaluated for impairment	269,173	229,316	258,745
Commercial construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	580	823	823
Charge offs	58	0	9
Recoveries	0	0	1
Provision for loan losses	(177)	(16)	(235)
Ending balance	345	807	580
Ending balance specifically evaluated for impairment	96	396	302
Ending balance collectively evaluated for impairment	249	411	278
Total	20,138	34,683	24,881
Ending balance specifically evaluated for impairment	967	1,380	1,026
Ending balance collectively evaluated for impairment	19,171	33,303	23,855
Commercial other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,452	1,505	1,505
Charge offs	0	2	732
Recoveries	20	4	88
Provision for loan losses	204	207	591
Ending balance	1,676	1,714	1,452
Ending balance specifically evaluated for impairment	21	347	8
Ending balance collectively evaluated for impairment	1,655	1,367	1,444
Total	133,629	115,455	128,341
Ending balance specifically evaluated for impairment	1,185	2,721	1,234
Ending balance collectively evaluated for impairment	132,444	112,734	127,107
Municipal
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	17	15	15
Charge offs	0	0	0
Recoveries	0	0	0
Provision for loan losses	0	1	2
Ending balance	17	16	17
Ending balance specifically evaluated for impairment	0	0	0
Ending balance collectively evaluated for impairment	17	16	17
Total	19,042	26,277	19,751
Ending balance specifically evaluated for impairment	0	0	0
Ending balance collectively evaluated for impairment	19,042	26,277	19,751
Residential term
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,391	1,185	1,185
Charge offs	20	83	420
Recoveries	65	6	152
Provision for loan losses	38	0	474
Ending balance	1,474	1,108	1,391
Ending balance specifically evaluated for impairment	384	421	326
Ending balance collectively evaluated for impairment	1,090	687	1,065
Total	405,495	383,869	403,030
Ending balance specifically evaluated for impairment	14,540	16,348	15,088
Ending balance collectively evaluated for impairment	390,955	367,521	387,942
Residential construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	24	20	20
Charge offs	0	0	0
Recoveries	0	0	0
Provision for loan losses	9	3	4
Ending balance	33	23	24
Ending balance specifically evaluated for impairment	0	0	0
Ending balance collectively evaluated for impairment	33	23	24
Total	11,754	13,036	8,451
Ending balance specifically evaluated for impairment	0	0	0
Ending balance collectively evaluated for impairment	11,754	13,036	8,451
Home equity line of credit
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	893	1,060	1,060
Charge offs	49	447	582
Recoveries	1	22	31
Provision for loan losses	60	409	384
Ending balance	905	1,044	893
Ending balance specifically evaluated for impairment	29	24	29
Ending balance collectively evaluated for impairment	876	1,020	864
Total	110,249	104,100	110,202
Ending balance specifically evaluated for impairment	1,408	1,654	1,466
Ending balance collectively evaluated for impairment	108,841	102,446	108,736
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	566	542	542
Charge offs	63	62	350
Recoveries	32	36	121
Provision for loan losses	119	10	253
Ending balance	654	526	566
Ending balance specifically evaluated for impairment	0	0	0
Ending balance collectively evaluated for impairment	654	526	566
Total	24,952	19,728	24,520
Ending balance specifically evaluated for impairment	0	25	0
Ending balance collectively evaluated for impairment	24,952	19,703	24,520
Unallocated
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,873	1,662	1,662
Charge offs	0	0	0
Recoveries	0	0	0
Provision for loan losses	(282)	179	211
Ending balance	1,591	1,841	1,873
Ending balance specifically evaluated for impairment	0	0	0
Ending balance collectively evaluated for impairment	1,591	1,841	1,873
Total	0	0	0
Ending balance specifically evaluated for impairment	0	0	0
Ending balance collectively evaluated for impairment	$ 0	$ 0	$ 0

Stock Options and Stock-Based53

Stock Options and Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 1995	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted during the period	108,710
Total share based compensation cost	$ 1,140
Allocated Share-based Compensation Expense	49	$ 74
Share-based compensation expense not yet recognized	$ 706	$ 567
Shares granted, net of forfeitures (shares)			600,000
Percentage of options vesting two years			50.00%
Vesting Term (In Years)			10 years
Percentage of options vesting five years			50.00%
Plan 2,010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capital shares reserved for future issuance (shares)				400,000
First Vesting Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)			2 years
Second Vesting Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)			5 years
Restricted Stock | Plan 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted during the period	67,064
Restricted Stock | First Vesting Period | Plan 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted during the period	6,832
Vesting Term (In Years)	1 year

Stock Options and Stock-Based54

Stock Options and Stock-Based Compensation - Shares of Restricted Stock Granted under 2010 Plan (Details) - shares	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 1995
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)						10 years
Shares	108,710
First Vesting Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)						2 years
Plan 2010 | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares	67,064
Remaining Term (In Years)	2 years 9 months 18 days
Plan 2010 | Five Years | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)	5 years	5 years	5 years	5 years	5 years
Shares	15,015	12,023	10,422	14,776	7,996
Remaining Term (In Years)	4 years 9 months 18 days	3 years 9 months 18 days	2 years 9 months 18 days	1 year 9 months 18 days	9 months 18 days
Plan 2010 | First Vesting Period | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)	1 year
Shares	6,832
Remaining Term (In Years)	9 months 18 days

Preferred and Common Stock (Det

Preferred and Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	Mar. 28, 2013	Jan. 09, 2009	Mar. 31, 2016	Mar. 31, 2015	May. 31, 2015
Class of Stock [Line Items]
Number of shares of common stock issuable pursuant to the Warrants, maximum (in shares)		225,904			226,819
Exercise price of the Warrants (in dollars per share)		$ 16.60			$ 16.53
Term of warrants		10 years
Proceeds from sale of common stock (in shares)	760,771
Proceeds from sale of common stock	$ 11,649		$ 121	$ 110
Outstanding CPP shares - value	$ 10,000
Issuance of common stock for plans			121	110
Capital Purchase Program
Class of Stock [Line Items]
Issuance of common stock for plans			$ 121	$ 110
Series A Preferred Stock
Class of Stock [Line Items]
Proceeds from issuance of CPP Shares		$ 25,000

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income (Numerator) [Abstract]
Net income as reported	$ 4,503	$ 4,175
Basic EPS: Income available to common shareholders (shares)	4,503	4,175
Net Income (Loss) Available to Common Stockholders, Diluted	$ 4,503	$ 4,175
Shares (Denominator) [Abstract]
Basic EPS: Income available to common shareholders (in shares)	10,699,440	10,665,059
Effect of dilutive securities: restricted stock and warrants (in shares)	95,672	66,430
Diluted EPS: Income available to common shareholders plus assumed conversions (in shares)	10,795,112	10,731,489
Per-Share Amount [Abstract]
Basic EPS: Income available to common shareholders (in dollars per share)	$ 0.42	$ 0.39
Diluted EPS: Income available to common shareholders plus assumed conversions (in dollars per share)	$ 0.42	$ 0.39

Earnings Per Share - Schedule

Earnings Per Share - Schedule of Options and Warrants Outstanding (Details) - shares	Mar. 31, 2016	Mar. 31, 2015
Schedule of Outstanding Options And Warrants [Line Items]
Warrants to private parties	226,819	225,904
Total Dilutive Securities	226,819	225,904
In-the-Money
Schedule of Outstanding Options And Warrants [Line Items]
Warrants to private parties	226,819	225,904
Total Dilutive Securities	226,819	225,904
Out-of-the-Money
Schedule of Outstanding Options And Warrants [Line Items]
Warrants to private parties	0	0
Total Dilutive Securities	0	0

Employee Benefit Plans (Details

Employee Benefit Plans (Details)	3 Months Ended
	Mar. 31, 2016USD ($)employeepost_retirement_benefit_plan	Mar. 31, 2015USD ($)	Dec. 31, 2015USD ($)
General Discussion of Pension and Other Postretirement Benefits [Abstract]
Requisite period of service (months)	3 months
Defined contribution plan employer maximum percentage match of annual salary based on employee contribution	3.00%
Defined contribution plan employer maximum percentage of annual profit-sharing contribution to plan for benefit of employee			2.00%
Expense related to 401(k) plan	$ 120,000	$ 121,000
Unfunded, non-qualified deferred compensation payable period (years)	2 years
Unfunded, supplemental retirement benefits payable period (years)	20 years
Pension expense	$ 54,000	78,000
Accrued pension liability	$ 3,082,000	$ 3,031,000	$ 3,088,000
Number of post retirement benefit plans | post_retirement_benefit_plan	2
Number of employees currently eligible | employee	7
Requisite age	50 years
Post-retirement benefit plan health insurance subsidy range minimum per month per person	$ 40
Post-retirement benefit plan health insurance subsidy range maximum per month per person	$ 1,200
Discount rate	4.25%
Assumed health care cost trend rate	7.00%
Expected future benefit payments, current year	$ 121,000
Estimated plan expense	85,000
Effect of one percentage point increase on accumulated benefit obligation	100,000
Effect of one percentage point increase on interest cost	7,000
Effect of one percentage point increase on service cost	$ 1,000

Employee Benefit Plans, Accumul

Employee Benefit Plans, Accumulated Post-Retirement Benefit Obligation, Funded Status, and Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Change in benefit obligation
Benefit obligation at beginning of year	$ 1,967	$ 1,928
Service cost	0	0
Interest cost	21	18
Benefits paid	(30)	(26)
Benefit obligation at end of period	1,958	1,920
Funded status
Benefit obligation at end of period	(1,967)	(1,928)	$ (1,958)	$ (1,920)
Unamortized loss			240	192
Accrued benefit cost at end of period			$ (1,718)	$ (1,728)
Components of net periodic benefit cost
Service cost	0	0
Interest cost	21	18
Net periodic benefit cost	$ 21	$ 18

Employee Benefit Plans, Schedul

Employee Benefit Plans, Schedule of Net Periodic Benefit Cost Not Yet Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
General Discussion of Pension and Other Postretirement Benefits [Abstract]
Unamortized net actuarial loss	$ (240)	$ (192)	$ (240)
Deferred tax benefit at 35%	84	67	84
Net unrecognized postretirement benefits included in accumulated other comprehensive income (loss)	$ (156)	$ (125)	$ (156)
Deferred tax benefit, percentage	35.00%	35.00%	35.00%

Other Comprehensive Income (L61

Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning balance	$ 167,498	$ 161,554
Other comprehensive income	1,841	38
Balance, ending period	171,545	163,516
Accumulated Net Investment Gain (Loss) Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning balance	1,123	2,522
Unrealized gains arising during the period	3,385	1,483
Reclassification of realized gains during the period	(536)	(1,395)
Related deferred taxes	(997)	(31)
Other comprehensive income	1,852	57
Balance, ending period	$ 2,975	$ 2,579

Other Comprehensive Income (L62

Other Comprehensive Income (Loss) - Reclassification of Available-for-Sale Securities to Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Reclassification of Available-for-Sale Securities to Held-to-maturity Roll Forward [Roll Forward]
Balance, beginning balance	$ 167,498	$ 161,554
Other Comprehensive Income (Loss), Net of Tax	1,841	38
Balance, ending period	171,545	163,516
Accumulated Net Gain (Loss) on Securities Transferred from Available-for-Sale to Held-to-Maturity
Reclassification of Available-for-Sale Securities to Held-to-maturity Roll Forward [Roll Forward]
Balance, beginning balance	(112)	(48)
Reclassification of realized gains during the period	(17)	(14)
Related deferred taxes	6	(5)
Other Comprehensive Income (Loss), Net of Tax	(11)	(19)
Balance, ending period	$ (123)	$ (67)

Other Comprehensive Income (L63

Other Comprehensive Income (Loss) - Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning balance	$ 167,498	$ 161,554
Balance, ending period	171,545	163,516
Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning balance	(156)	(125)
Amortization of unrecognized transition obligation	0	0
Change in unamortized net actuarial gain (loss)	0	0
Related deferred taxes	0	0
Balance, ending period	$ (156)	$ (125)

Mortgage Servicing Rights - Nar

Mortgage Servicing Rights - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Transfers and Servicing [Abstract]
Moving average of weekly prepayment assumption (months)	3 months
Prepayment speed	14.86%
Average quarterly discount rate	10 years
Discount rate adjustment rate	5.17%
Origination of Mortgage Servicing Rights (MSRs)	$ 0	$ 64,000
Amortization of Mortgage Servicing Rights (MSRs)	97,000	104,000
Mortgage servicing rights	1,543,000	1,746,000	$ 1,915,000
Residential mortgage loans serviced for others, principal	$ 223,565,000	$ 214,537,000	$ 223,610,000

Mortgage Servicing Rights Inclu

Mortgage Servicing Rights Included in Other Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Transfers and Servicing [Abstract]
Mortgage servicing rights	$ 5,747	$ 5,747	$ 6,103
Accumulated amortization	(4,716)	(4,619)	(5,053)
Impairment reserve	(107)	(35)	(47)
Total Servicing asset at fair value	$ 924	$ 1,093	$ 1,003

Certificates of Deposit (Detail

Certificates of Deposit (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Banking and Thrift [Abstract]
Certificates of deposit less than $100,000	$ 197,006	$ 158,529	$ 137,166
Certificates $100,000 to $250,000	226,644	175,077	210,657
Certificates $250,000 and over	49,062	37,376	50,334
Total certificates of deposit	$ 472,712	$ 370,982	$ 398,157

Fair Value - Assets and Liabili

Fair Value - Assets and Liabilities Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 216,725	$ 223,039	$ 156,317
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	216,725	223,039	156,317
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	216,725	223,039	156,317
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	193,657	195,110	127,617
Mortgage-backed securities | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
Mortgage-backed securities | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	193,657	195,110	127,617
Mortgage-backed securities | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	19,904	24,506	25,598
State and political subdivisions | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
State and political subdivisions | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	19,904	24,506	25,598
State and political subdivisions | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	3,164	3,423	3,102
Other equity securities | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
Other equity securities | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	3,164	3,423	3,102
Other equity securities | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	216,725	223,039	156,317
Total Fair Value | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	216,725	223,039	156,317
Total Fair Value | Mortgage-backed securities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	193,657	195,110	127,617
Total Fair Value | State and political subdivisions | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	19,904	24,506	25,598
Total Fair Value | Other equity securities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 3,164	$ 3,423	$ 3,102

Fair Value - Assets and Liabil

Fair Value - Assets and Liabilities Recorded at Fair Value on a Non-Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	$ 1,592	$ 1,532	$ 2,899
Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	0	0	0
Impaired loans	0	0	0
Total assets	0	0	0
Fair Value, Measurements, Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	1,592	1,532	2,899
Impaired loans	879	699	1,439
Total assets	2,471	2,231	4,338
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	0	0	0
Impaired loans	0	0	0
Total assets	0	0	0
Total Fair Value | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	1,592	1,532	2,899
Impaired loans	879	699	1,439
Total assets	$ 2,471	$ 2,231	$ 4,338

Fair Value - Assets and Liabi69

Fair Value - Assets and Liabilities at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 14,533	$ 14,299	$ 13,855	$ 13,057
Interest bearing deposits in other banks	6,372	4,013	336
Securities available for sale	216,725	223,039	156,317
Securities to be held to maturity	236,611	240,023	262,455
Securities to be held to maturity	243,337	243,123	267,247
Restricted equity securities	13,875	14,257	13,912
Loans held for sale	224	349	0
Loans	994,723	978,722	928,973
Mortgage servicing rights	924	1,093	1,003
Mortgage servicing rights	1,543	1,915	1,746
Accrued interest receivable	6,271	4,912	5,724
Demand deposits	116,756	130,566	100,939
NOW deposits	240,112	242,638	199,099
Money market deposits	74,643	92,994	101,292
Savings deposits	205,218	206,009	167,338
Local certificates of deposit	207,664	201,420	199,553
National certificates of deposit	265,048	169,562	198,604
Total deposits	1,109,441	1,043,189	966,825
Repurchase agreements	91,399	87,103	85,657
Federal Home Loan Bank advances	185,132	250,354	226,919
Total borrowed funds	276,531	337,457	312,576
Accrued interest payable	495	435	564
Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	275,510	265,616	238,218
Commercial construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	19,729	24,166	33,698
Commercial other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	131,644	126,551	113,363
Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	19,022	19,730	26,257
Residential term
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	403,749	401,315	382,517
Residential construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	11,715	8,421	13,008
Home equity line of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	109,177	109,101	102,826
Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	24,177	23,822	19,086
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	14,533	14,299	13,855
Interest bearing deposits in other banks	6,372	4,013	336
Securities available for sale	0	0	0
Securities to be held to maturity	0	0	0
Restricted equity securities	0	0	0
Loans held for sale	0	0
Loans	0	0	0
Mortgage servicing rights	0	0	0
Accrued interest receivable	0	0	0
Demand deposits	0	0	0
NOW deposits	0	0	0
Money market deposits	0	0	0
Savings deposits	0	0	0
Local certificates of deposit	0	0	0
National certificates of deposit	0	0	0
Total deposits	0	0	0
Repurchase agreements	0	0	0
Federal Home Loan Bank advances	0	0	0
Total borrowed funds	0	0	0
Accrued interest payable	0	0	0
Level 1 | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 1 | Commercial construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 1 | Commercial other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 1 | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 1 | Residential term
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 1 | Residential construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 1 | Home equity line of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 1 | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0	0
Interest bearing deposits in other banks	0	0	0
Securities available for sale	216,725	223,039	156,317
Securities to be held to maturity	243,337	243,123	267,247
Restricted equity securities	13,875	14,257	13,912
Loans held for sale	224	349
Loans	879	699	1,439
Mortgage servicing rights	1,543	1,915	1,746
Accrued interest receivable	6,271	4,912	5,724
Demand deposits	116,614	125,651	99,935
NOW deposits	230,934	224,627	189,139
Money market deposits	68,221	82,050	87,816
Savings deposits	187,346	181,010	151,345
Local certificates of deposit	209,455	201,013	200,506
National certificates of deposit	265,335	169,617	198,846
Total deposits	1,077,905	983,968	927,587
Repurchase agreements	88,442	82,168	81,693
Federal Home Loan Bank advances	186,398	250,027	230,230
Total borrowed funds	274,840	332,195	311,923
Accrued interest payable	495	435	564
Level 2 | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	184
Level 2 | Commercial construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 2 | Commercial other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	9
Level 2 | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 2 | Residential term
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	17	0	1,018
Level 2 | Residential construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 2 | Home equity line of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	862	699	228
Level 2 | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0	0
Interest bearing deposits in other banks	0	0	0
Securities available for sale	0	0	0
Securities to be held to maturity	0	0	0
Restricted equity securities	0	0	0
Loans held for sale	0	0
Loans	997,298	978,008	932,717
Mortgage servicing rights	0	0	0
Accrued interest receivable	0	0	0
Demand deposits	0	0	0
NOW deposits	0	0	0
Money market deposits	0	0	0
Savings deposits	0	0	0
Local certificates of deposit	0	0	0
National certificates of deposit	0	0	0
Total deposits	0	0	0
Repurchase agreements	0	0	0
Federal Home Loan Bank advances	0	0	0
Total borrowed funds	0	0	0
Accrued interest payable	0	0	0
Level 3 | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	272,302	262,763	236,156
Level 3 | Commercial construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	19,499	23,906	33,432
Level 3 | Commercial other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	131,637	126,141	113,400
Level 3 | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	19,994	20,331	26,844
Level 3 | Residential term
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	410,653	405,315	388,564
Level 3 | Residential construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	11,648	8,379	12,988
Level 3 | Home equity line of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	107,412	107,419	102,074
Level 3 | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	24,153	23,754	19,259
Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	14,533	14,299	13,855
Interest bearing deposits in other banks	6,372	4,013	336
Securities available for sale	216,725	223,039	156,317
Securities to be held to maturity	243,337	243,123	267,247
Restricted equity securities	13,875	14,257	13,912
Loans held for sale	224	349
Loans	998,177	978,707	934,156
Mortgage servicing rights	1,543	1,915	1,746
Accrued interest receivable	6,271	4,912	5,724
Demand deposits	116,614	125,651	99,935
NOW deposits	230,934	224,627	189,139
Money market deposits	68,221	82,050	87,816
Savings deposits	187,346	181,010	151,345
Local certificates of deposit	209,455	201,013	200,506
National certificates of deposit	265,335	169,617	198,846
Total deposits	1,077,905	983,968	927,587
Repurchase agreements	88,442	82,168	81,693
Federal Home Loan Bank advances	186,398	250,027	230,230
Total borrowed funds	274,840	332,195	311,923
Accrued interest payable	495	435	564
Total Fair Value | Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	272,302	262,763	236,340
Total Fair Value | Commercial construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	19,499	23,906	33,432
Total Fair Value | Commercial other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	131,637	126,141	113,409
Total Fair Value | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	19,994	20,331	26,844
Total Fair Value | Residential term
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	410,670	405,315	389,582
Total Fair Value | Residential construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	11,648	8,379	12,988
Total Fair Value | Home equity line of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	108,274	108,118	102,302
Total Fair Value | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 24,153	$ 23,754	$ 19,259

Fair Value - Additional Informa

Fair Value - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Valuation allowance on real estate owned	$ 130	$ 162	$ 387
Valuation allowance on impaired financing receivable	$ 158	$ 292	$ 799