The First Bancorp, Inc. (FNLC) 10-Q 9 Aug 17 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Aug. 01, 2017
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 Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		10,822,509
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Assets
Cash and cash equivalents	$ 20,189	$ 17,366	$ 20,838
Interest bearing deposits in other banks	3,820	293	7,568
Securities available for sale	308,146	300,416	241,327
Securities to be held to maturity (fair value of $246,238,000 at June 30, 2017, $225,537,000 at December 31, 2016 and $225,200,000 at June 30, 2016)	244,123	226,828	216,272
Restricted equity securities, at cost	12,311	11,930	14,441
Loans held for sale	865	782	1,553
Loans	1,120,665	1,071,526	1,038,213
Less allowance for loan losses	10,611	10,138	10,198
Net loans	1,110,054	1,061,388	1,028,015
Accrued interest receivable	7,192	5,532	6,372
Premises and equipment, net	21,367	22,202	21,118
Other real estate owned	324	375	1,129
Goodwill	29,805	29,805	29,805
Other assets	37,455	35,958	33,016
Total assets	1,795,651	1,712,875	1,621,454
Liabilities
Demand deposits	180,298	140,482	130,168
NOW deposits	250,316	282,971	254,136
Money market deposits	134,760	125,544	73,030
Savings deposits	226,391	217,340	208,826
Certificates of deposit	527,494	476,620	479,549
Total deposits	1,319,259	1,242,957	1,145,709
Borrowed funds – short term	157,154	158,774	132,965
Borrowed funds – long term	125,123	120,127	150,130
Other liabilities	16,578	18,496	17,862
Total liabilities	1,618,114	1,540,354	1,446,666
Shareholders' equity
Common stock, one cent par value per share	108	108	108
Additional paid-in capital	61,218	60,723	60,284
Retained earnings	115,980	111,693	110,820
Accumulated other comprehensive income (loss)
Net unrealized gain (loss) on securities available for sale	(585)	(935)	4,000
Net unrealized loss on securities transferred from available for sale to held to maturity	(137)	(129)	(133)
Net unrealized gain (loss) on cash flow hedging derivative instruments	1,055	1,163	(135)
Net unrealized loss on postretirement benefit costs	(102)	(102)	(156)
Total shareholders' equity	177,537	172,521	174,788
Total liabilities & shareholders' equity	$ 1,795,651	$ 1,712,875	$ 1,621,454
Common Stock
Number of shares authorized (in shares)	18,000,000	18,000,000	18,000,000
Number of shares outstanding (in shares)	10,819,443	10,793,946	10,782,226
Book value per common share (usd per share)	$ 16.41	$ 15.98	$ 16.21
Tangible book value per common share (usd per share)	$ 13.63	$ 13.20	$ 13.42

Consolidated Balance Sheets (U3

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Assets
Securities to be held to maturity, fair value	$ 246,238	$ 225,537	$ 225,200
Common stock, par value per share	$ 0.01	$ 0.01	$ 0.01
Common stock, shares issued	10,819,443	10,793,946	10,782,226

Consolidated Statements of Inco

Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Interest income
Interest and fees on loans (includes tax-exempt income of $380,000 as of June 30, 2017 and $304,000 as of June 30, 2016)	$ 11,115	$ 10,004	$ 21,767	$ 19,738
Interest on deposits with other banks	8	5	23	8
Interest and dividends on investments (includes tax-exempt income of $3,238,000 in 2017 and $2,488,000 in 2016)	3,879	3,591	7,703	7,130
Total interest income	15,002	13,600	29,493	26,876
Interest expense
Interest on deposits	2,302	1,491	4,296	2,844
Interest on borrowed funds	1,035	1,158	2,056	2,352
Total interest expense	3,337	2,649	6,352	5,196
Net interest income	11,665	10,951	23,141	21,680
Provision for loan losses	500	375	1,000	750
Net interest income after provision for loan losses	11,165	10,576	22,141	20,930
Non-interest income
Investment management and fiduciary income	709	651	1,340	1,214
Service charges on deposit accounts	549	609	1,051	1,183
Net securities gains (losses)	0	(5)	3	531
Mortgage origination and servicing income, net of amortization	429	509	761	638
Other operating income	1,315	1,242	2,690	2,404
Total non-interest income	3,002	3,006	5,845	5,970
Non-interest expense
Salaries and employee benefits	3,873	3,607	7,843	7,205
Occupancy expense	603	568	1,227	1,146
Furniture and equipment expense	890	801	1,760	1,597
FDIC insurance premiums	263	207	503	421
Amortization of identified intangibles	11	11	22	22
Other operating expense	2,000	2,051	3,983	4,054
Total non-interest expense	7,640	7,245	15,338	14,445
Income before income taxes	6,527	6,337	12,648	12,455
Income tax expense	1,644	1,713	3,128	3,328
NET INCOME	$ 4,883	$ 4,624	$ 9,520	$ 9,127
Basic earnings per common share (usd per share)	$ 0.45	$ 0.43	$ 0.89	$ 0.85
Diluted earnings per common share (usd per share)	$ 0.45	$ 0.43	$ 0.88	$ 0.84
Other comprehensive income (loss) net of tax
Net unrealized gain on securities available for sale	$ 349	$ 1,025	$ 350	$ 2,877
Net unrealized loss on securities transferred from available for sale to held to maturity, net of amortization	(4)	(10)	(8)	(21)
Net unrealized loss on cash flow hedging derivative instruments	(171)	(135)	(108)	(135)
Other comprehensive income	174	880	234	2,721
Comprehensive income	$ 5,057	$ 5,504	$ 9,754	$ 11,848

Consolidated Statements of Inc5

Consolidated Statements of Income and Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Interest and fees on loans (tax-exempt income)	$ 380	$ 304
Interest and dividends on investments (tax-exempt income)	$ 3,238	$ 2,488

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 (loss)
Beginning balance (in shares) at Dec. 31, 2015		10,753,855
Beginning balance at Dec. 31, 2015	$ 167,498	$ 59,970	$ 106,673	$ 855
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,127		9,127
Net unrealized gain on securities available for sale, net of tax	2,877			2,877
Net unrealized loss on cash flow hedging derivative instruments	(135)			(135)
Net unrealized loss on securities transferred from available for sale to held to maturity, net of tax	(21)			(21)
Comprehensive income	11,848		9,127	2,721
Cash dividends declared	(4,851)		(4,851)
Equity compensation expense	132	$ 132
Payment to repurchase of common stock (in shares)		(6,937)
Payment to repurchase common stock	(129)		(129)
Tax benefit from vesting of restricted stock	32	$ 32
Issuance of restricted stock (in shares)		21,847
Proceeds from sale of common stock (in shares)		13,461
Proceeds from sale of common stock	$ 258	$ 258
Ending balance (in shares) at Jun. 30, 2016	10,782,226	10,782,226
Ending balance at Jun. 30, 2016	$ 174,788	$ 60,392	110,820	3,576
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,624
Net unrealized gain on securities available for sale, net of tax	1,025
Net unrealized loss on securities transferred from available for sale to held to maturity, net of tax	$ (10)
Ending balance (in shares) at Jun. 30, 2016	10,782,226	10,782,226
Ending balance at Jun. 30, 2016	$ 174,788	$ 60,392	110,820	3,576
Beginning balance (in shares) at Dec. 31, 2016	10,793,946	10,793,946
Beginning balance at Dec. 31, 2016	$ 172,521	$ 60,831	111,693	(3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,520		9,520
Net unrealized gain on securities available for sale, net of tax	350			350
Net unrealized loss on cash flow hedging derivative instruments	(108)			(108)
Net unrealized loss on securities transferred from available for sale to held to maturity, net of tax	(8)			(8)
Comprehensive income	9,754		9,520	234
Cash dividends declared	(5,085)		(5,085)
Equity compensation expense	166	$ 166
Payment to repurchase of common stock (in shares)		(5,333)
Payment to repurchase common stock	(148)		(148)
Issuance of restricted stock (in shares)		18,850
Proceeds from sale of common stock (in shares)		11,980
Proceeds from sale of common stock	$ 329	$ 329
Ending balance (in shares) at Jun. 30, 2017	10,819,443	10,819,443
Ending balance at Jun. 30, 2017	$ 177,537	$ 61,326	115,980	231
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,883
Net unrealized gain on securities available for sale, net of tax	349
Net unrealized loss on securities transferred from available for sale to held to maturity, net of tax	$ (4)
Ending balance (in shares) at Jun. 30, 2017	10,819,443	10,819,443
Ending balance at Jun. 30, 2017	$ 177,537	$ 61,326	$ 115,980	$ 231

Consolidated Statements of Cha7

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (usd per share)	$ 0.470	$ 0.450

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities
Net income	$ 9,520	$ 9,127
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation	908	859
Change in deferred taxes	98	(209)
Provision for loan losses	1,000	750
Loans originated for resale	(17,070)	(16,535)
Proceeds from sales and transfers of loans	17,280	15,710
Net gain on sales of loans	(293)	(379)
Net gain on sale or call of securities	(3)	(531)
Net amortization of premiums on investments	1,808	939
Net gain on sale of other real estate owned	(74)	(82)
Provision for losses on other real estate owned	3	0
Equity compensation expense	166	132
Tax benefit from vesting of restricted stock	0	32
Net increase in other assets and accrued interest	(3,338)	(2,468)
Net decrease in other liabilities	(943)	(384)
Net loss on disposal of premises and equipment	7	0
Amortization of investment in limited partnership	89	97
Net acquisition amortization	22	22
Net cash provided by operating activities	9,180	7,080
Cash flows from investing activities
Increase in interest-bearing deposits in other banks	(3,527)	(3,555)
Proceeds from sales of securities available for sale	3	8,954
Proceeds from maturities, payments and calls of securities available for sale	123,896	25,544
Proceeds from maturities, payments and calls of securities to be held to maturity	7,022	43,876
Proceeds from sales of other real estate owned	336	972
Purchases of securities available for sale	(133,056)	(48,834)
Purchases of securities to be held to maturity	(24,169)	(20,059)
Purchase of Federal Reserve Bank and Federal Home Loan Bank Stock	(381)	(184)
Net increase in loans	(49,880)	(50,530)
Capital expenditures	(80)	(161)
Net cash used by investing activities	(79,836)	(43,977)
Cash flows from financing activities
Net increase (decrease) in demand, savings, and money market accounts	25,428	(6,047)
Net increase in certificates of deposit	50,874	108,567
Net decrease in short-term borrowings	(21,624)	(64,362)
Advances on long-term borrowings	50,000	10,000
Proceeds from (Repayments of) Other Long-term Debt	(25,000)	0
Payment to repurchase common stock	(148)	(129)
Proceeds from sale of common stock	329	258
Dividends paid	(6,380)	(4,851)
Net cash provided by financing activities	73,479	43,436
Net increase in cash and cash equivalents	2,823	6,539
Cash and cash equivalents at beginning of period	17,366	14,299
Cash and cash equivalents at end of period	20,189	20,838
Interest paid	6,228	5,132
Income taxes paid	2,470	2,802
Non-cash transactions
Net transfer from loans to other real estate owned	$ 214	$ 487

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2017
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 2017 period is not necessarily indicative of the results that may be expected for the year ending December 31, 2017 . 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, 2016 . Subsequent Events Events occurring subsequent to June 30, 2017 , have been evaluated as to their potential impact to the financial statements.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2017
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 June 30, 2017 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale Mortgage-backed securities $ 290,379,000 $ 1,381,000 $ (2,769,000 ) $ 288,991,000 State and political subdivisions 15,401,000 486,000 (59,000 ) 15,828,000 Other equity securities 3,266,000 65,000 (4,000 ) 3,327,000 $ 309,046,000 $ 1,932,000 $ (2,832,000 ) $ 308,146,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 11,152,000 $ — $ (181,000 ) $ 10,971,000 Mortgage-backed securities 27,224,000 820,000 (41,000 ) 28,003,000 State and political subdivisions 201,447,000 3,573,000 (2,056,000 ) 202,964,000 Corporate securities 4,300,000 — — 4,300,000 $ 244,123,000 $ 4,393,000 $ (2,278,000 ) $ 246,238,000 Restricted equity securities Federal Home Loan Bank Stock $ 11,274,000 $ — $ — $ 11,274,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 12,311,000 $ — $ — $ 12,311,000 The following table summarizes the amortized cost and estimated fair value of investment securities at December 31, 2016 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale Mortgage-backed securities $ 282,397,000 $ 1,334,000 $ (3,127,000 ) $ 280,604,000 State and political subdivisions 16,183,000 475,000 (176,000 ) 16,482,000 Other equity securities 3,274,000 63,000 (7,000 ) 3,330,000 $ 301,854,000 $ 1,872,000 $ (3,310,000 ) $ 300,416,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 11,943,000 $ 35,000 $ (233,000 ) $ 11,745,000 Mortgage-backed securities 31,201,000 967,000 (147,000 ) 32,021,000 State and political subdivisions 179,384,000 1,971,000 (3,884,000 ) 177,471,000 Corporate securities 4,300,000 — — 4,300,000 $ 226,828,000 $ 2,973,000 $ (4,264,000 ) $ 225,537,000 Restricted equity securities Federal Home Loan Bank Stock $ 10,893,000 $ — $ — $ 10,893,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 11,930,000 $ — $ — $ 11,930,000 The following table summarizes the amortized cost and estimated fair value of investment securities at June 30, 2016 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale U.S. Government-sponsored agencies $ 522,000 $ — $ — $ 522,000 Mortgage-backed securities 214,303,000 5,274,000 (224,000 ) 219,353,000 State and political subdivisions 17,315,000 1,100,000 — 18,415,000 Other equity securities 3,034,000 48,000 (45,000 ) 3,037,000 $ 235,174,000 $ 6,422,000 $ (269,000 ) $ 241,327,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 35,962,000 $ 31,000 $ — $ 35,993,000 Mortgage-backed securities 37,096,000 1,651,000 (24,000 ) 38,723,000 State and political subdivisions 138,914,000 7,270,000 — 146,184,000 Corporate securities 4,300,000 — — 4,300,000 $ 216,272,000 $ 8,952,000 $ (24,000 ) $ 225,200,000 Restricted equity securities Federal Home Loan Bank Stock $ 13,404,000 $ — $ — $ 13,404,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 14,441,000 $ — $ — $ 14,441,000 The following table summarizes the contractual maturities of investment securities at June 30, 2017 : 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 $ 26,000 $ 26,000 $ 707,000 $ 710,000 Due in 1 to 5 years 1,722,000 1,758,000 14,536,000 14,813,000 Due in 5 to 10 years 34,382,000 35,099,000 41,373,000 42,251,000 Due after 10 years 269,650,000 267,936,000 187,507,000 188,464,000 Equity securities 3,266,000 3,327,000 — — $ 309,046,000 $ 308,146,000 $ 244,123,000 $ 246,238,000 The following table summarizes the contractual maturities of investment securities at December 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 $ 253,000 $ 253,000 $ 906,000 $ 913,000 Due in 1 to 5 years 2,251,000 2,298,000 13,451,000 13,714,000 Due in 5 to 10 years 21,043,000 21,505,000 41,588,000 42,448,000 Due after 10 years 275,033,000 273,030,000 170,883,000 168,462,000 Equity securities 3,274,000 3,330,000 — — $ 301,854,000 $ 300,416,000 $ 226,828,000 $ 225,537,000 The following table summarizes the contractual maturities of investment securities at June 30, 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 $ 2,058,000 $ 2,072,000 $ 1,847,000 $ 1,857,000 Due in 1 to 5 years 3,326,000 3,432,000 13,162,000 13,538,000 Due in 5 to 10 years 24,917,000 25,839,000 42,679,000 44,693,000 Due after 10 years 201,839,000 206,947,000 158,584,000 165,112,000 Equity securities 3,034,000 3,037,000 — — $ 235,174,000 $ 241,327,000 $ 216,272,000 $ 225,200,000 At June 30, 2017 , securities with a fair value of $188,448,000 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 $222,328,000 as of December 31, 2016 and $196,274,000 at June 30, 2016 , 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 six months and quarters ended June 30, 2017 and 2016 : For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Proceeds from sales of securities $ 3,000 $ 8,954,000 $ — $ 86,000 Gross realized gains 3,000 531,000 — — Gross realized losses — — — (5,000 ) Net gain (loss) $ 3,000 $ 531,000 $ — $ (5,000 ) Related income taxes $ 1,000 $ 186,000 $ — $ (2,000 ) Management reviews securities with unrealized losses for other than temporary impairment. As of June 30, 2017 , there were 235 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. At June 30, 2017 , there were 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 June 30, 2017 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 $ 7,972,000 $ (181,000 ) $ — $ — $ 7,972,000 $ (181,000 ) Mortgage-backed securities 170,966,000 (2,613,000 ) 7,643,000 (197,000 ) 178,609,000 (2,810,000 ) State and political subdivisions 55,952,000 (2,115,000 ) — — 55,952,000 (2,115,000 ) Other equity securities 69,000 (1,000 ) 9,000 (3,000 ) 78,000 (4,000 ) $ 234,959,000 $ (4,910,000 ) $ 7,652,000 $ (200,000 ) $ 242,611,000 $ (5,110,000 ) As of December 31, 2016 , there were 299 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, 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 $ 6,642,000 $ (233,000 ) $ — $ — $ 6,642,000 $ (233,000 ) Mortgage-backed securities 197,528,000 (3,090,000 ) 2,905,000 (184,000 ) 200,433,000 (3,274,000 ) State and political subdivisions 72,348,000 (4,060,000 ) — — 72,348,000 (4,060,000 ) Other equity securities — — 128,000 (7,000 ) 128,000 (7,000 ) $ 276,518,000 $ (7,383,000 ) $ 3,033,000 $ (191,000 ) $ 279,551,000 $ (7,574,000 ) As of June 30, 2016 , there were 25 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 13 had been temporarily impaired for 12 months or more. Information regarding securities temporarily impaired as of June 30, 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 Mortgage-backed securities 21,849,000 (168,000 ) 2,615,000 (80,000 ) 24,464,000 (248,000 ) Other equity securities 135,000 (15,000 ) 93,000 (30,000 ) 228,000 (45,000 ) $ 21,984,000 $ (183,000 ) $ 2,708,000 $ (110,000 ) $ 24,692,000 $ (293,000 ) 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 $137,000 at June 30, 2017 . 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 June 30, 2017 and 2016 , and December 31, 2016 , the Bank's investment in FHLB stock totaled $11,274,000 , $13,404,000 and $10,893,000 , 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 June 30, 2017 . The Bank will continue to monitor its investment in FHLB stock.

Loans

Loans	6 Months Ended
	Jun. 30, 2017
Loans and Leases Receivable Disclosure [Abstract]
Loans	Loans The following table shows the composition of the Company's loan portfolio as of June 30, 2017 and 2016 and at December 31, 2016 : June 30, 2017 December 31, 2016 June 30, 2016 Commercial Real estate $ 306,490,000 27.4 % $ 302,506,000 28.2 % $ 303,312,000 29.2 % Construction 33,605,000 3.0 % 25,406,000 2.4 % 18,439,000 1.8 % Other 173,691,000 15.5 % 150,769,000 14.1 % 136,651,000 13.2 % Municipal 28,695,000 2.6 % 27,056,000 2.5 % 25,531,000 2.5 % Residential Term 427,171,000 38.1 % 411,469,000 38.4 % 403,461,000 38.8 % Construction 15,056,000 1.3 % 18,303,000 1.7 % 13,403,000 1.3 % Home equity line of credit 110,328,000 9.8 % 110,907,000 10.4 % 112,536,000 10.8 % Consumer 25,629,000 2.3 % 25,110,000 2.3 % 24,880,000 2.4 % Total $ 1,120,665,000 100.0 % $ 1,071,526,000 100.0 % $ 1,038,213,000 100.0 % Loan balances include net deferred loan costs of $5,469,000 as of June 30, 2017 , $4,921,000 as of December 31, 2016 , and $4,478,000 as of June 30, 2016 . Pursuant to collateral agreements, qualifying first mortgage loans, which totaled $313,709,000 at June 30, 2017 , $257,122,000 at December 31, 2016 , and $270,293,000 at June 30, 2016 , were used to collateralize borrowings from the FHLB. In addition, commercial, construction and home equity loans totaling $294,315,000 at June 30, 2017 , $261,463,000 at December 31, 2016 , and $263,707,000 at June 30, 2016 , 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 June 30, 2017 , 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 $ 88,000 $ — $ 1,387,000 $ 1,475,000 $ 305,015,000 $ 306,490,000 $ — Construction — — — — 33,605,000 33,605,000 — Other 29,000 259,000 515,000 803,000 172,888,000 173,691,000 — Municipal — — — — 28,695,000 28,695,000 — Residential Term 533,000 3,343,000 1,507,000 5,383,000 421,788,000 427,171,000 — Construction 99,000 — — 99,000 14,957,000 15,056,000 — Home equity line of credit 440,000 406,000 751,000 1,597,000 108,731,000 110,328,000 — Consumer 282,000 118,000 29,000 429,000 25,200,000 25,629,000 29,000 Total $ 1,471,000 $ 4,126,000 $ 4,189,000 $ 9,786,000 $ 1,110,879,000 $ 1,120,665,000 $ 29,000 Information on the past-due status of loans by class of financing receivable as of December 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 $ 1,039,000 $ 22,000 $ 2,415,000 $ 3,476,000 $ 299,030,000 $ 302,506,000 $ 753,000 Construction — — — — 25,406,000 25,406,000 — Other 202,000 33,000 796,000 1,031,000 149,738,000 150,769,000 20,000 Municipal — — — — 27,056,000 27,056,000 — Residential Term 631,000 3,970,000 1,802,000 6,403,000 405,066,000 411,469,000 — Construction — — — — 18,303,000 18,303,000 — Home equity line of credit 704,000 157,000 703,000 1,564,000 109,343,000 110,907,000 — Consumer 135,000 45,000 4,000 184,000 24,926,000 25,110,000 4,000 Total $ 2,711,000 $ 4,227,000 $ 5,720,000 $ 12,658,000 $ 1,058,868,000 $ 1,071,526,000 $ 777,000 Information on the past-due status of loans by class of financing receivable as of June 30, 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 $ 332,000 $ 998,000 $ 296,000 $ 1,626,000 $ 301,686,000 $ 303,312,000 $ — Construction — 29,000 17,000 46,000 18,393,000 18,439,000 — Other 131,000 218,000 314,000 663,000 135,988,000 136,651,000 — Municipal — — — — 25,531,000 25,531,000 — Residential Term 662,000 4,235,000 2,110,000 7,007,000 396,454,000 403,461,000 245,000 Construction — — — — 13,403,000 13,403,000 — Home equity line of credit 764,000 27,000 362,000 1,153,000 111,383,000 112,536,000 68,000 Consumer 283,000 7,000 8,000 298,000 24,582,000 24,880,000 8,000 Total $ 2,172,000 $ 5,514,000 $ 3,107,000 $ 10,793,000 $ 1,027,420,000 $ 1,038,213,000 $ 321,000 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 June 30, 2017 and 2016 and at December 31, 2016 is presented in the following table: June 30, 2017 December 31, 2016 June 30, 2016 Commercial Real estate $ 1,814,000 $ 1,907,000 $ 1,227,000 Construction — — 46,000 Other 885,000 964,000 378,000 Municipal — — — Residential Term 3,852,000 4,060,000 4,291,000 Construction — — — Home equity line of credit 883,000 843,000 421,000 Consumer — — 115,000 Total $ 7,434,000 $ 7,774,000 $ 6,478,000 Impaired loans include troubled debt restructured ("TDR") 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 period ended June 30, 2017 is presented in the following table: For the six months ended June 30, 2017 For the quarter ended June 30, 2017 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Recognized Interest Income Average Recorded Investment Recognized Interest Income With No Related Allowance Commercial Real estate $ 5,686,000 $ 6,171,000 $ — $ 5,429,000 $ 94,000 $ 5,414,000 $ 46,000 Construction — — — — — — — Other 1,405,000 1,449,000 — 1,507,000 19,000 1,418,000 12,000 Municipal — — — — — — — Residential Term 11,065,000 12,152,000 — 11,343,000 161,000 11,283,000 73,000 Construction — — — — — — — Home equity line of credit 1,380,000 1,731,000 — 1,387,000 14,000 1,397,000 7,000 Consumer — — — — — — — $ 19,536,000 $ 21,503,000 $ — $ 19,666,000 $ 288,000 $ 19,512,000 $ 138,000 With an Allowance Recorded Commercial Real estate $ 4,167,000 $ 4,356,000 $ 221,000 $ 4,644,000 $ 85,000 $ 4,549,000 $ 43,000 Construction 763,000 763,000 103,000 763,000 18,000 763,000 9,000 Other 228,000 268,000 36,000 177,000 6,000 230,000 4,000 Municipal — — — — — — — Residential Term 1,925,000 2,067,000 209,000 1,971,000 41,000 1,864,000 21,000 Construction — — — — — — — Home equity line of credit 25,000 27,000 25,000 26,000 — 25,000 — Consumer — — — — — — — $ 7,108,000 $ 7,481,000 $ 594,000 $ 7,581,000 $ 150,000 $ 7,431,000 $ 77,000 Total Commercial Real estate $ 9,853,000 $ 10,527,000 $ 221,000 $ 10,073,000 $ 179,000 $ 9,963,000 $ 89,000 Construction 763,000 763,000 103,000 763,000 18,000 763,000 9,000 Other 1,633,000 1,717,000 36,000 1,684,000 25,000 1,648,000 16,000 Municipal — — — — — — — Residential Term 12,990,000 14,219,000 209,000 13,314,000 202,000 13,147,000 94,000 Construction — — — — — — — Home equity line of credit 1,405,000 1,758,000 25,000 1,413,000 14,000 1,422,000 7,000 Consumer — — — — — — — $ 26,644,000 $ 28,984,000 $ 594,000 $ 27,247,000 $ 438,000 $ 26,943,000 $ 215,000 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, 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 $ 5,201,000 $ 5,614,000 $ — $ 6,252,000 $ 220,000 Construction — — — 32,000 — Other 1,671,000 1,852,000 — 1,074,000 86,000 Municipal — — — — — Residential Term 11,483,000 12,654,000 — 11,025,000 442,000 Construction — — — — — Home equity line of credit 1,361,000 1,733,000 — 1,213,000 33,000 Consumer — — — 9,000 — $ 19,716,000 $ 21,853,000 $ — $ 19,605,000 $ 781,000 With an Allowance Recorded Commercial Real estate $ 4,820,000 $ 4,925,000 $ 505,000 $ 4,153,000 $ 186,000 Construction 763,000 763,000 100,000 816,000 36,000 Other 72,000 72,000 39,000 317,000 — Municipal — — — — — Residential Term 2,186,000 2,328,000 304,000 3,209,000 101,000 Construction — — — — — Home equity line of credit 26,000 28,000 26,000 69,000 — Consumer — — — 48,000 — $ 7,867,000 $ 8,116,000 $ 974,000 $ 8,612,000 $ 323,000 Total Commercial Real estate $ 10,021,000 $ 10,539,000 $ 505,000 $ 10,405,000 $ 406,000 Construction 763,000 763,000 100,000 848,000 36,000 Other 1,743,000 1,924,000 39,000 1,391,000 86,000 Municipal — — — — — Residential Term 13,669,000 14,982,000 304,000 14,234,000 543,000 Construction — — — — — Home equity line of credit 1,387,000 1,761,000 26,000 1,282,000 33,000 Consumer — — — 57,000 — $ 27,583,000 $ 29,969,000 $ 974,000 $ 28,217,000 $ 1,104,000 A breakdown of impaired loans by class of financing receivable as of and for the period ended June 30, 2016 is presented in the following table: For the six months ended June 30, 2016 For the quarter ended June 30, 2016 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Recognized Interest Income Average Recorded Investment Recognized Interest Income With No Related Allowance Commercial Real estate $ 6,654,000 $ 6,817,000 $ — $ 7,068,000 $ 145,000 $ 6,916,000 $ 66,000 Construction 46,000 46,000 — 60,000 1,000 40,000 — Other 955,000 994,000 — 1,083,000 21,000 1,045,000 13,000 Municipal — — — — — — — Residential Term 10,924,000 12,085,000 — 10,653,000 209,000 10,592,000 118,000 Construction — — — — — — — Home equity line of credit 912,000 1,266,000 — 1,216,000 13,000 1,079,000 5,000 Consumer — — — — — — — $ 19,491,000 $ 21,208,000 $ — $ 20,080,000 $ 389,000 $ 19,672,000 $ 202,000 With an Allowance Recorded Commercial Real estate $ 4,031,000 $ 4,116,000 $ 369,000 $ 3,458,000 $ 71,000 $ 3,518,000 $ 35,000 Construction 788,000 788,000 97,000 857,000 18,000 788,000 10,000 Other 524,000 530,000 158,000 209,000 12,000 337,000 12,000 Municipal — — — — — — — Residential Term 3,181,000 3,266,000 326,000 3,830,000 66,000 3,664,000 23,000 Construction — — — — — — — Home equity line of credit 63,000 64,000 28,000 73,000 1,000 63,000 — Consumer 115,000 115,000 51,000 19,000 — 38,000 — $ 8,702,000 $ 8,879,000 $ 1,029,000 $ 8,446,000 $ 168,000 $ 8,408,000 $ 80,000 Total Commercial Real estate $ 10,685,000 $ 10,933,000 $ 369,000 $ 10,526,000 $ 216,000 $ 10,434,000 $ 101,000 Construction 834,000 834,000 97,000 917,000 19,000 828,000 10,000 Other 1,479,000 1,524,000 158,000 1,292,000 33,000 1,382,000 25,000 Municipal — — — — — — — Residential Term 14,105,000 15,351,000 326,000 14,483,000 275,000 14,256,000 141,000 Construction — — — — — — — Home equity line of credit 975,000 1,330,000 28,000 1,289,000 14,000 1,142,000 5,000 Consumer 115,000 115,000 51,000 19,000 — 38,000 — $ 28,193,000 $ 30,087,000 $ 1,029,000 $ 28,526,000 $ 557,000 $ 28,080,000 $ 282,000 Troubled Debt Restructured A "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 June 30, 2017 , the Company had 68 loans with a value of $20,301,000 that have been classified as TDRs. This compares to 71 loans with a value of $21,526,000 and 78 loans with a value of $22,595,000 classified as TDRs as of December 31, 2016 and June 30, 2016 , 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 June 30, 2017 : Number of Loans Balance Specific Reserves Commercial Real estate 9 $ 8,040,000 $ 93,000 Construction 1 763,000 103,000 Other 5 749,000 1,000 Municipal — — — Residential Term 50 10,227,000 209,000 Construction — — — Home equity line of credit 3 522,000 — Consumer — — — 68 $ 20,301,000 $ 406,000 The following table shows TDRs by class and the specific reserve as of December 31, 2016 : Number of Loans Balance Specific Reserves Commercial Real estate 10 $ 8,937,000 $ 375,000 Construction 1 763,000 100,000 Other 5 779,000 — Municipal — — — Residential Term 52 10,503,000 261,000 Construction — — — Home equity line of credit 3 544,000 — Consumer — — — 71 $ 21,526,000 $ 736,000 The following table shows TDRs by class and the specific reserve as of June 30, 2016 : Number of Loans Balance Specific Reserves Commercial Real estate 11 $ 9,459,000 $ 105,000 Construction 1 788,000 97,000 Other 10 1,101,000 78,000 Municipal — — — Residential Term 53 10,693,000 264,000 Construction — — — Home equity line of credit 3 554,000 — Consumer — — — 78 $ 22,595,000 $ 544,000 As of June 30, 2017 , 10 of the loans classified as TDRs with a total balance of $1,336,000 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 June 30, 2017 : Number of Loans Balance Specific Reserves Commercial Real estate — $ — $ — Construction — — — Other — — — Municipal — — — Residential Term 9 1,169,000 10,000 Construction — — — Home equity line of credit 1 167,000 — Consumer — — — 10 $ 1,336,000 $ 10,000 As of June 30, 2016 , nine of the loans classified as TDRs with a total balance of $979,000 were more than 30 days past due. Of these loans, one loan with a balance of $108,000 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 June 30, 2016 : Number of Loans Balance Specific Reserves Commercial Real estate — $ — $ — Construction — — — Other 1 10,000 — Municipal — — — Residential Term 8 969,000 49,000 Construction — — — Home equity line of credit — — — Consumer — — — 9 $ 979,000 $ 49,000 For the six months ended June 30, 2017 and 2016, no loans were placed on TDR status. As of June 30, 2017 , Management is aware of four loans classified as TDRs that are involved in bankruptcy with an outstanding balance of $830,000 . There were also eight loans with an outstanding balance of $1,089,000 that were classified as TDRs and on non-accrual status, of which one loan with an outstanding balance of $108,000 was in the process of foreclosure. Residential Mortgage Loans in Process of Foreclosure As of June 30, 2017 , there were 12 mortgage loans collateralized by residential real estate in the process of foreclosure with a total balance of $ 1,919,000 , none of these loans were placed in TDR status in the past 12 months. This compares to 13 mortgage loans collateralized by residential real estate in the process of foreclosure with a total balance of $1,514,000 as of June 30, 2016 .

Allowance for Loan Losses

Allowance for Loan Losses	6 Months Ended
	Jun. 30, 2017
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. Major risk characteristics relevant to each portfolio segment are as follows: Commercial Real Estate - Commercial real estate loans are impacted by factors such as competitive market forces, vacancy rates, cap rates, net operating incomes, lease renewals and overall economic demand. In addition, loans in the recreational and tourism sector can be affected by weather conditions, such as unseasonably low winter snowfalls. Commercial real estate lending also carries a higher degree of environmental risk than other real estate lending. Commercial Construction - Commercial construction loans are impacted by factors similar to those for commercial real estate loans in addition to risks related to contractor financial capacity and ability to complete a project within acceptable time frames and within budget. Commercial Other - A weakened economy, soft consumer spending, and the rising cost of labor or raw materials are examples of issues that can impact the credit quality in this segment. Municipal Loans - The overall health of the economy, including unemployment rates and housing prices, has an impact on the credit quality of this segment. Residential Real Estate Term - The overall health of the economy, including unemployment rates and housing prices, has an impact on the credit quality of this segment. Residential Real Estate Construction - The overall health of the economy, including unemployment rates and housing prices, has an impact on the credit quality of this segment. Residential construction are impacted by factors similar to those for residential real estate term in addition to risks related to contractor financial capacity and ability to complete a project within acceptable time frames and within budget. Home Equity Line of Credit - The overall health of the economy, including unemployment rates and housing prices, has an impact on the credit quality of this segment. Consumer - The overall health of the economy, including unemployment rates, has an impact on the credit quality of this segment. 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 June 30, 2017 , December 31, 2016 , and June 30, 2016 , by class of financing receivable and allowance element, is presented in the following tables: As of June 30, 2017 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 $ 221,000 $ 1,467,000 $ 2,308,000 $ — $ 3,996,000 Construction 103,000 161,000 253,000 — 517,000 Other 36,000 829,000 1,306,000 — 2,171,000 Municipal — — 19,000 — 19,000 Residential Term 209,000 249,000 541,000 — 999,000 Construction — 8,000 18,000 — 26,000 Home equity line of credit 25,000 300,000 359,000 — 684,000 Consumer — 245,000 284,000 — 529,000 Unallocated — — — 1,670,000 1,670,000 $ 594,000 $ 3,259,000 $ 5,088,000 $ 1,670,000 $ 10,611,000 As of December 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 $ 505,000 $ 1,471,000 $ 2,012,000 $ — $ 3,988,000 Construction 100,000 125,000 171,000 — 396,000 Other 39,000 735,000 1,006,000 — 1,780,000 Municipal — — 18,000 — 18,000 Residential Term 304,000 563,000 421,000 — 1,288,000 Construction — 25,000 19,000 — 44,000 Home equity line of credit 26,000 444,000 337,000 — 807,000 Consumer — 328,000 231,000 — 559,000 Unallocated — — — 1,258,000 1,258,000 $ 974,000 $ 3,691,000 $ 4,215,000 $ 1,258,000 $ 10,138,000 As of June 30, 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 $ 369,000 $ 1,296,000 $ 2,290,000 $ — $ 3,955,000 Construction 97,000 80,000 141,000 — 318,000 Other 158,000 585,000 1,035,000 — 1,778,000 Municipal — — 17,000 — 17,000 Residential Term 326,000 577,000 462,000 — 1,365,000 Construction — 19,000 15,000 — 34,000 Home equity line of credit 28,000 475,000 377,000 — 880,000 Consumer 51,000 341,000 243,000 — 635,000 Unallocated — — — 1,216,000 1,216,000 $ 1,029,000 $ 3,373,000 $ 4,580,000 $ 1,216,000 $ 10,198,000 Qualitative adjustment factors are taken into consideration when determining reserve estimates. These adjustment factors are based upon Management's 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 June 30, 2017 and 0.39% as of December 31, 2016 . The qualitative portion increased $873,000 between December 31, 2016 and June 30, 2017 due to loan growth and of some slippage in certain economic factors. The unallocated component of the allowance totaled $1,670,000 at June 30, 2017 , or 15.7% of the total reserve. This compares to $1,258,000 or 12.4% as of December 31, 2016 . The change is due to year-to-date loan growth in the commercial construction and commercial-other segments and a small increase in classified loans. The allowance for loan losses as a percent of total loans stood at 0.95% as of June 30, 2017 and December 31, 2016. This compares to 0.98% as of June 30, 2016 . Commercial loans are comprised of three major classes, commercial real estate loans, commercial construction loans and other commercial loans. Commercial real estate loans consist of mortgage loans to finance investments in real property such as multi-family residential, commercial/retail, office, industrial, hotels, educational and other specific or mixed use properties. Commercial real estate loans are typically written with amortizing payment structures. Collateral values are determined based on appraisals and evaluations in accordance with established policy and regulatory guidelines. Commercial real estate loans typically have a loan-to-value ratio of up to 80% based upon current valuation information at the time the loan is made. Commercial real estate loans are primarily paid by the cash flow generated from the real property, such as operating leases, rents, or other operating cash flows from the borrower. Commercial construction loans consist of loans to finance construction in a mix of owner- and non-owner occupied commercial real estate properties. Commercial construction loans typically have maturities of less than two years. Payment structures during the construction period are typically on an interest only basis, although principal payments may be established depending on the type of construction project being financed. During the construction phase, commercial construction loans are primarily paid by cash flow generated from the construction project or other operating cash flows from the borrower or guarantors, if applicable. At the end of the construction period, loan repayment typically comes from a third party source in the event that the Company will not be providing permanent term financing. Collateral valuation and loan-to-value guidelines follow those for commercial real estate loans. Other commercial loans consist of revolving and term loan obligations extended to business and corporate enterprises for the purpose of financing working capital and or capital investment. Collateral generally consists of pledges of business assets including, but not limited to, accounts receivable, inventory, plant and equipment, and/or real estate, if applicable. Commercial loans are primarily paid by the operating cash flow of the borrower. Commercial loans may be secured or unsecured. 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 are collateralized by the taxing ability of the municipality for repayment of debt. Residential loans are comprised of two classes: term loans and construction loans. Residential term loans consist of residential real estate loans held in the Company's loan portfolio made to borrowers who demonstrate the ability to make scheduled payments with full consideration to underwriting factors. Borrower qualifications include favorable credit history combined with supportive income requirements and loan-to-value ratios within established policy and regulatory guidelines. Collateral values are determined based on appraisals and evaluations in accordance with established policy and regulatory guidelines. Residential loans typically have a loan-to-value ratio of up to 80% based on appraisal information at the time the loan is made. Collateral consists of mortgage liens on one- to four-family residential properties. Loans are offered with fixed or adjustable rates with amortization terms of up to thirty years. Residential construction loans typically consist of loans for the purpose of constructing single family residences to be owned and occupied by the borrower. Borrower qualifications include favorable credit history combined with supportive income requirements and loan-to-value ratios within established policy and regulatory guidelines. Residential construction loans normally have construction terms of one year or less and payment during the construction term is typically on an interest only basis from sources including interest reserves, borrower liquidity and/or income. Residential construction loans will typically convert to permanent financing from the Company or have another financing commitment in place from an acceptable mortgage lender. Collateral valuation and loan-to-value guidelines are consistent with those for residential term loans. Home equity lines of credit are made to qualified individuals and are secured by senior or junior mortgage liens on owner occupied one- to four-family homes, condominiums, or vacation homes. The home equity line of credit typically has a variable interest rate and is billed as interest-only payments during the draw period. At the end of the draw period, the home equity line of credit is billed as a percentage of the principal balance plus all accrued interest. Loan maturities are normally 300 months. Borrower qualifications include favorable credit history combined with supportive income requirements and combined loan-to- value ratios usually not exceeding 80% inclusive of priority liens. Collateral valuation guidelines follow those for residential real state loans. Consumer loan products including personal lines of credit and amortizing loans made to qualified individuals for various purposes such as auto, recreational vehicles, debt consolidation, personal expenses or overdraft protection. Borrower qualifications include favorable credit history combined with supportive income and collateral requirements within established policy guidelines. Consumer loans may be secured or unsecured. Construction, land and land development loans, both commercial and residential, comprise a small portion of the portfolio, and at 31.1% of capital are below the regulatory limit of 100.0% of capital at June 30, 2017 . Construction loans and non-owner-occupied commercial real estate loans are at 113.1% of total capital, below the regulatory limit of 300.0% of capital at June 30, 2017 . 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 June 30, 2017 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 2,000 $ — $ 1,004,000 $ — $ 1,006,000 2 Above Average 13,737,000 45,000 7,700,000 27,895,000 49,377,000 3 Satisfactory 84,550,000 2,827,000 52,024,000 800,000 140,201,000 4 Average 140,826,000 20,849,000 80,537,000 — 242,212,000 5 Watch 46,158,000 9,884,000 16,402,000 — 72,444,000 6 OAEM 3,283,000 — 3,920,000 — 7,203,000 7 Substandard 17,811,000 — 12,104,000 — 29,915,000 8 Doubtful 123,000 — — — 123,000 Total $ 306,490,000 $ 33,605,000 $ 173,691,000 $ 28,695,000 $ 542,481,000 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, 2016 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 2,000 $ — $ 850,000 $ — $ 852,000 2 Above Average 13,981,000 49,000 8,934,000 25,527,000 48,491,000 3 Satisfactory 81,286,000 1,345,000 48,212,000 1,529,000 132,372,000 4 Average 139,421,000 16,506,000 65,146,000 — 221,073,000 5 Watch 43,181,000 7,349,000 16,864,000 — 67,394,000 6 OAEM 4,569,000 — 1,587,000 — 6,156,000 7 Substandard 20,066,000 157,000 9,176,000 — 29,399,000 8 Doubtful — — — — — Total $ 302,506,000 $ 25,406,000 $ 150,769,000 $ 27,056,000 $ 505,737,000 The following table summarizes the risk ratings for the Company's commercial real estate, commercial construction, commercial other, and municipal loans as of June 30, 2016 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 3,000 $ — $ 897,000 $ — $ 900,000 2 Above Average 27,602,000 54,000 7,567,000 23,898,000 59,121,000 3 Satisfactory 71,595,000 995,000 25,038,000 1,633,000 99,261,000 4 Average 136,010,000 11,769,000 72,919,000 — 220,698,000 5 Watch 41,328,000 5,621,000 24,702,000 — 71,651,000 6 OAEM 9,443,000 — 2,587,000 — 12,030,000 7 Substandard 17,331,000 — 2,941,000 — 20,272,000 8 Doubtful — — — — — Total $ 303,312,000 $ 18,439,000 $ 136,651,000 $ 25,531,000 $ 483,933,000 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 six months ended June 30, 2017 . The following table presents allowance for loan losses activity by class for the six months and quarter ended June 30, 2017 , and allowance for loan loss balances by class and related loan balances by class as of June 30, 2017 : Commercial Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction For the six months ended June 30, 2017 Beginning balance $ 3,988,000 $ 396,000 $ 1,780,000 $ 18,000 $ 1,288,000 $ 44,000 $ 807,000 $ 559,000 $ 1,258,000 $ 10,138,000 Charge offs 305,000 — 58,000 — 70,000 — 28,000 156,000 — 617,000 Recoveries — — 18,000 — 19,000 — 3,000 50,000 — 90,000 Provision (credit) 313,000 121,000 431,000 1,000 (238,000 ) (18,000 ) (98,000 ) 76,000 412,000 1,000,000 Ending balance $ 3,996,000 $ 517,000 $ 2,171,000 $ 19,000 $ 999,000 $ 26,000 $ 684,000 $ 529,000 $ 1,670,000 $ 10,611,000 For the three months ended June 30, 2017 Beginning balance $ 4,015,000 $ 441,000 $ 1,925,000 $ 18,000 $ 969,000 $ 24,000 $ 811,000 $ 573,000 $ 1,591,000 $ 10,367,000 Charge offs 141,000 — 58,000 — 17,000 — 21,000 53,000 — 290,000 Recoveries — — 7,000 — 5,000 — 3,000 19,000 — 34,000 Provision (credit) 122,000 76,000 297,000 1,000 42,000 2,000 (109,000 ) (10,000 ) 79,000 500,000 Ending balance $ 3,996,000 $ 517,000 $ 2,171,000 $ 19,000 $ 999,000 $ 26,000 $ 684,000 $ 529,000 $ 1,670,000 $ 10,611,000 Allowance for loan losses as of June 30, 2017 Ending balance specifically evaluated for impairment $ 221,000 $ 103,000 $ 36,000 $ — $ 209,000 $ — $ 25,000 $ — $ — $ 594,000 Ending balance collectively evaluated for impairment $ 3,775,000 $ 414,000 $ 2,135,000 $ 19,000 $ 790,000 $ 26,000 $ 659,000 $ 529,000 $ 1,670,000 $ 10,017,000 Related loan balances as of June 30, 2017 Ending balance $ 306,490,000 $ 33,605,000 $ 173,691,000 $ 28,695,000 $ 427,171,000 $ 15,056,000 $ 110,328,000 $ 25,629,000 $ — $ 1,120,665,000 Ending balance specifically evaluated for impairment $ 9,853,000 $ 763,000 $ 1,633,000 $ — $ 12,990,000 $ — $ 1,405,000 $ — $ — $ 26,644,000 Ending balance collectively evaluated for impairment $ 296,637,000 $ 32,842,000 $ 172,058,000 $ 28,695,000 $ 414,181,000 $ 15,056,000 $ 108,923,000 $ 25,629,000 $ — $ 1,094,021,000 The following table presents allowance for loan losses activity by class for the yearended December 31, 2016 and allowance for loan loss balances by class and related loan balances by class as of December 31, 2016 : Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction 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 294,000 75,000 376,000 — 379,000 — 147,000 450,000 — 1,721,000 Recoveries — 8,000 129,000 — 93,000 — 5,000 108,000 — 343,000 Provision (credit) 1,162,000 (117,000 ) 575,000 1,000 183,000 20,000 56,000 335,000 (615,000 ) 1,600,000 Ending balance $ 3,988,000 $ 396,000 $ 1,780,000 $ 18,000 $ 1,288,000 $ 44,000 $ 807,000 $ 559,000 $ 1,258,000 $ 10,138,000 Ending balance specifically evaluated for impairment $ 505,000 $ 100,000 $ 39,000 $ — $ 304,000 $ — $ 26,000 $ — $ — $ 974,000 Ending balance collectively evaluated for impairment $ 3,483,000 $ 296,000 $ 1,741,000 $ 18,000 $ 984,000 $ 44,000 $ 781,000 $ 559,000 $ 1,258,000 $ 9,164,000 Ending balance $ 302,506,000 $ 25,406,000 $ 150,769,000 $ 27,056,000 $ 411,469,000 $ 18,303,000 $ 110,907,000 $ 25,110,000 $ — $ 1,071,526,000 Ending balance specifically evaluated for impairment $ 10,021,000 $ 763,000 $ 1,743,000 $ — $ 13,669,000 $ — $ 1,387,000 $ — $ — $ 27,583,000 Ending balance collectively evaluated for impairment $ 292,485,000 $ 24,643,000 $ 149,026,000 $ 27,056,000 $ 397,800,000 $ 18,303,000 $ 109,520,000 $ 25,110,000 $ — $ 1,043,943,000 The following table presents allowance for loan losses activity by class for the six months and quarter ended June 30, 2016 , and allowance for loan loss balances by class and related loan balances by class as of June 30, 2016 : Commercial Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction For the six months ended June 30, 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 33,000 58,000 30,000 — 266,000 — 122,000 157,000 — 666,000 Recoveries — — 56,000 — 74,000 — 2,000 66,000 — 198,000 Provision (credit) 868,000 (204,000 ) 300,000 — 166,000 10,000 107,000 160,000 (657,000 ) 750,000 Ending balance $ 3,955,000 $ 318,000 $ 1,778,000 $ 17,000 $ 1,365,000 $ 34,000 $ 880,000 $ 635,000 $ 1,216,000 $ 10,198,000 For the three months ended June 30, 2016 Beginning 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 Charge offs 33,000 — 30,000 — 246,000 — 73,000 94,000 — 476,000 Recoveries — — 36,000 — 9,000 — 1,000 34,000 — 80,000 Provision (credit) 464,000 (27,000 ) 96,000 — 128,000 1,000 47,000 41,000 (375,000 ) 375,000 Ending balance $ 3,955,000 $ 318,000 $ 1,778,000 $ 17,000 $ 1,365,000 $ 34,000 $ 880,000 $ 635,000 $ 1,216,000 $ 10,198,000 Allowance for loan losses as of June 30, 2016 Ending balance specifically evaluated for impairment $ 369,000 $ 97,000 $ 158,000 $ — $ 326,000 $ — $ 28,000 $ 51,000 $ — $ 1,029,000 Ending balance collectively evaluated for impairment $ 3,586,000 $ 221,000 $ 1,620,000 $ 17,000 $ 1,039,000 $ 34,000 $ 852,000 $ 584,000 $ 1,216,000 $ 9,169,000 Related loan balances as of June 30, 2016 Ending balance $ 303,312,000 $ 18,439,000 $ 136,651,000 $ 25,531,000 $ 403,461,000 $ 13,403,000 $ 112,536,000 $ 24,880,000 $ — $ 1,038,213,000 Ending balance specifically evaluated for impairment $ 10,685,000 $ 834,000 $ 1,479,000 $ — $ 14,105,000 $ — $ 975,000 $ 115,000 $ — $ 28,193,000 Ending balance collectively evaluated for impairment $ 292,627,000 $ 17,605,000 $ 135,172,000 $ 25,531,000 $ 389,356,000 $ 13,403,000 $ 111,561,000 $ 24,765,000 $ — $ 1,010,020,000

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	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 June 30, 2017 , 127,560 shares of restricted stock had been granted under the 2010 Plan, of which 71,086 shares remain restricted as of June 30, 2017 as detailed in the following table: Year Granted Vesting Term (In Years) Shares Remaining Term (In Years) 2013 5.0 14,776 0.3 2014 5.0 10,422 1.3 2015 5.0 12,023 2.3 2016 5.0 15,015 3.3 2017 1.0 3,976 0.6 2017 3.0 4,902 2.6 2017 5.0 9,972 4.6 71,086 2.2 The compensation cost related to these restricted stock grants is $1,428,000 and will be recognized over the vesting terms of each grant. In the six months ended June 30, 2017 , $166,000 of expense was recognized for these restricted shares, leaving $828,000 in unrecognized expense as of June 30, 2017 . In the six months ended June 30, 2016 , $132,000 of expense was recognized for restricted shares, leaving $623,000 in unrecognized expense as of June 30, 2016 .

Preferred and Common Stock

Preferred and Common Stock	6 Months Ended
	Jun. 30, 2017
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, to 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 the Treasury to third parties. The Warrants have a term of ten years and could be exercised by the 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 the Warrants to private parties. In accordance with the contractual terms of the Warrants, the number of shares issuable upon exercise and strike price were adjusted at the time of the sale. As a result of this transaction, the aggregate number of shares of common stock issuable under the Warrants were adjusted to 226,819 shares with a strike price of $16.53 per share. In November 2016, the Company repurchased all of the outstanding Warrants for an aggregate purchase price of $1,750,000 . Common Stock Proceeds from sale of common stock totaled $329,000 and $258,000 for the six months ended June 30, 2017 and 2016 , respectively.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2017
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 six months ended June 30, 2017 and 2016 : Income (Numerator) Shares (Denominator) Per-Share Amount For the six months ended June 30, 2017 Net income as reported $ 9,520,000 Basic EPS: Income available to common shareholders 9,520,000 10,740,355 $ 0.89 Effect of dilutive securities: restricted stock 72,348 Diluted EPS: Income available to common shareholders plus assumed conversions $ 9,520,000 10,812,703 $ 0.88 For the six months ended June 30, 2016 Net income as reported $ 9,127,000 Basic EPS: Income available to common shareholders 9,127,000 10,710,483 $ 0.85 Effect of dilutive securities: restricted stock and warrants 101,306 Diluted EPS: Income available to common shareholders plus assumed conversions $ 9,127,000 10,811,789 $ 0.84 The following table sets forth the computation of basic and diluted EPS for the quarters ended June 30, 2017 and 2016: Income (Numerator) Shares (Denominator) Per-Share Amount For the quarter ended June 30, 2017 Net income as reported $ 4,883,000 Basic EPS: Income available to common shareholders 4,883,000 10,746,363 $ 0.45 Effect of dilutive securities: restricted stock 71,086 Diluted EPS: Income available to common shareholders plus assumed conversions $ 4,883,000 10,817,449 $ 0.45 For the quarter ended June 30, 2016 Net income as reported $ 4,624,000 Basic EPS: Income available to common shareholders 4,624,000 10,712,418 $ 0.43 Effect of dilutive securities: restricted stock and warrants 106,289 Diluted EPS: Income available to common shareholders plus assumed conversions $ 4,624,000 10,818,707 $ 0.43 All earnings per share calculations have been made using the weighted average number of shares outstanding during the period. The potentially dilutive securities are 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 shares were vested and warrants were exercisable at the end of each period. 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 warrants outstanding as of June 30, 2016 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 and six months ended June 30, 2016 Warrants issued to private parties 226,819 226,819 — Total 226,819 226,819 —

Employee Benefit Plans

Employee Benefit Plans	6 Months Ended
	Jun. 30, 2017
Retirement Benefits, Description [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 2016 . The amount for 2017 has not been established. The expense related to the 401(k) plan was $243,000 and $226,000 for the six months ended June 30, 2017 and 2016 , respectively. Deferred Compensation and Supplemental Retirement Benefits The Bank also provides 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 Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 712 "Compensation – Nonretirement Postemployment Benefits". The expense of these supplemental retirement benefits was $108,000 for the six months ended June 30, 2017 and 2016. As of June 30, 2017 , the associated accrued liability included in other liabilities in the balance sheet was $3,042,000 compared to $3,073,000 and $3,083,000 at December 31, 2016 and June 30, 2016 , 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 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 (loss). The following table sets forth the accumulated postretirement benefit obligation and funded status: At or for the six months ended June 30, 2017 2016 Change in benefit obligation Benefit obligation at beginning of year $ 1,870,000 $ 1,967,000 Interest cost 38,000 42,000 Benefits paid (64,000 ) (60,000 ) Benefit obligation at end of period $ 1,844,000 $ 1,949,000 Funded status Benefit obligation at end of period $ (1,844,000 ) $ (1,949,000 ) Unamortized loss 102,000 240,000 Accrued benefit cost at end of period $ (1,742,000 ) $ (1,709,000 ) The following table sets forth the net periodic pension cost: For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Components of net periodic benefit cost Interest cost $ 38,000 $ 42,000 19,000 21,000 Net periodic benefit cost $ 38,000 $ 42,000 $ 19,000 $ 21,000 Amounts not yet reflected in net periodic benefit cost and included in accumulated other comprehensive income (loss) are as follows: June 30, December 31, 2016 June 30, Unamortized net actuarial loss $ (156,000 ) $ (156,000 ) $ (240,000 ) Deferred tax benefit at 35% 54,000 54,000 84,000 Net unrecognized postretirement benefits included in accumulated other comprehensive income (loss) $ (102,000 ) $ (102,000 ) $ (156,000 ) 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 2017 are $126,000 . Plan expense for 2017 is estimated to be $77,000 . 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)	6 Months Ended
	Jun. 30, 2017
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 six months and quarters ended June 30, 2017 and 2016 . For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Balance at beginning of period $ (935,000 ) $ 1,123,000 $ (934,000 ) $ 2,975,000 Unrealized gains arising during the period 541,000 4,957,000 536,000 1,570,000 Reclassification of realized (gains) losses during the period (3,000 ) (531,000 ) — 5,000 Related deferred taxes (188,000 ) (1,549,000 ) (187,000 ) (550,000 ) Net change 350,000 2,877,000 349,000 1,025,000 Balance at end of period $ (585,000 ) $ 4,000,000 $ (585,000 ) $ 4,000,000 The reclassification of realized (gains) losses is included in the net securities gains (losses) 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 six months and quarters ended June 30, 2017 and 2016 . For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Balance at beginning of period $ (129,000 ) $ (112,000 ) $ (133,000 ) $ (123,000 ) Amortization of net unrealized losses (12,000 ) (32,000 ) (6,000 ) (15,000 ) Related deferred taxes 4,000 11,000 2,000 5,000 Net change (8,000 ) (21,000 ) (4,000 ) (10,000 ) Balance at end of period $ (137,000 ) $ (133,000 ) $ (137,000 ) $ (133,000 ) The following table presents the effect of the Company's derivative financial instruments included in other comprehensive income (loss) for the six months and quarters ended June 30, 2017 and 2016 . For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Balance at beginning of period $ 1,163,000 $ — $ 1,226,000 $ — Unrealized losses on cash flow hedging derivatives arising during the period (167,000 ) (208,000 ) (263,000 ) (208,000 ) Related deferred taxes 59,000 73,000 92,000 73,000 Net change (108,000 ) (135,000 ) (171,000 ) (135,000 ) Balance at end of period $ 1,055,000 $ (135,000 ) $ 1,055,000 $ (135,000 ) The following table summarizes activity in the unrealized gain or loss on postretirement benefits included in other comprehensive income (loss) for the six months and quarters ended June 30, 2017 and 2016 . For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Unrecognized postretirement benefits at beginning of period $ (102,000 ) $ (156,000 ) $ (102,000 ) $ (156,000 ) Amortization of unrecognized transition obligation — — — — Change in unamortized net actuarial gain (loss) — — — — Related deferred taxes — — — — Unrecognized postretirement benefits at end of period $ (102,000 ) $ (156,000 ) $ (102,000 ) $ (156,000 )

Financial Derivative Instrument

Financial Derivative Instruments	6 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Derivative Instruments	Financial Derivative Instruments As part of its overall asset and liability management strategy, the Company periodically uses derivative instruments to minimize significant unplanned fluctuations in earnings and cash flows caused by interest rate volatility. The Company’s interest rate risk management strategy involves modifying the re-pricing characteristics of certain assets or liabilities so that changes in interest rates do not have a significant effect on net interest income. The Company recognizes its derivative instruments in the consolidated balance sheet at fair value. On the date the derivative instrument is entered into, the Company designates whether the derivative is part of a hedging relationship (i.e., cash flow or fair value hedge). The Company formally documents relationships between hedging instruments and hedged items, as well as its risk management objective and strategy for undertaking hedge transactions. The Company also assesses, both at the hedge’s inception and on an ongoing basis, whether the derivatives used in hedging transactions are highly effective in offsetting the changes in cash flows or fair values of hedged items. Changes in fair value of derivative instruments that are highly effective and qualify as cash flow hedges are recorded in other comprehensive income or loss. Any ineffective portion is recorded in earnings. The Company discontinues hedge accounting when it is determined that the derivative is no longer highly effective in offsetting changes of the hedged risk on the hedged item, or management determines that the designation of the derivative as a hedging instrument is no longer appropriate. In 2016, interest rate swaps were contracted to limit the Company’s exposure to rising interest rates on short-term liabilities indexed to one-month London Inter-bank Offered Rates (LIBOR). The interest rate swaps were designated as cash flow hedges. The details of the interest rate swap agreements are as follows: As of June 30, 2017 2017 2016 Notional Amount Effective Date Maturity Date Variable Index Received Fixed Rate Paid Fair Value (1) Fair Value (1) $ 30,000,000 June 28, 2016 June 28, 2021 1-Month USD LIBOR 0.940 % $ 952,000 $ (153,000 ) $ 20,000,000 June 27, 2016 June 27, 2021 1-Month USD LIBOR 0.893 % $ 671,000 (55,000 ) $ 50,000,000 $ 1,623,000 $ (208,000 ) (1) Presented within other assets (liabilities) in the consolidated balance sheet. The Company would reclassify unrealized gains or losses accounted for within accumulated other comprehensive income (loss) into earnings if the interest rate swaps were to become ineffective or the swaps were to terminate. In the next 12 months, the Company does not believe it will be required to reclassify any unrealized gains or losses accounted for within accumulated other comprehensive income (loss) into earnings as a result of ineffectiveness or swap termination. Amounts paid or received under the swaps are reported in interest expense in the statement of income, and in interest paid in the statement of cash flows.

Mortgage Servicing Rights

Mortgage Servicing Rights	6 Months Ended
	Jun. 30, 2017
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 June 30, 2017 , the prepayment assumption using the PSA model was 201 , which translates into an anticipated prepayment rate of 12.04% . The discount rate is the quarterly average 10 year U.S. Treasury plus 5.00% . 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 six months ended June 30, 2017 and 2016 , servicing rights capitalized totaled $339,000 and $173,000 , respectively. Servicing rights amortized for the six-month periods ended June 30, 2017 and 2016 , were $274,000 and $212,000 respectively. The fair value of servicing rights was $1,888,000 , $1,696,000 and $1,489,000 at June 30, 2017 , December 31, 2016 and June 30, 2016 , respectively. The Bank serviced loans for others totaling $252,152,000 , $250,083,000 and $229,924,000 at June 30, 2017 , December 31, 2016 , and June 30, 2016 , respectively. Mortgage servicing rights are included in other assets and detailed in the following table: June 30, December 31, June 30, Mortgage servicing rights $ 5,199,000 $ 5,901,000 $ 5,520,000 Accumulated amortization (4,072,000 ) (4,680,000 ) (4,433,000 ) Impairment reserve (18,000 ) (108,000 ) (139,000 ) $ 1,109,000 $ 1,113,000 $ 948,000

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2017
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, 2014 through 2016.

Certificates of Deposit

Certificates of Deposit	6 Months Ended
	Jun. 30, 2017
Banking and Thrift [Abstract]
Certificates of Deposit	Certificates of Deposit The following table represents the breakdown of certificates of deposit at June 30, 2017 and 2016 , and at December 31, 2016 : June 30, 2017 December 31, 2016 June 30, 2016 Certificates of deposit < $100,000 $ 270,875,000 $ 195,115,000 $ 237,382,000 Certificates $100,000 to $250,000 212,063,000 240,904,000 199,599,000 Certificates $250,000 and over 44,556,000 40,601,000 42,568,000 $ 527,494,000 $ 476,620,000 $ 479,549,000

Reclassifications

Reclassifications	6 Months Ended
	Jun. 30, 2017
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	6 Months Ended
	Jun. 30, 2017
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 aggregate 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. Derivatives The fair value of interest rate swaps is determined using inputs that are observable in the market place obtained from third parties including yield curves, publicly available volatilities, and floating indexes and, accordingly, are classified as Level 2 inputs. The credit value adjustments associated with derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties. As of June 30, 2017 , the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives due to collateral postings. 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 that were measured at fair value on a recurring basis as of June 30, 2017 , December 31, 2016 and June 30, 2016 . At June 30, 2017 Level 1 Level 2 Level 3 Total Securities available for sale Mortgage-backed securities $ — $ 288,991,000 $ — $ 288,991,000 State and political subdivisions — 15,828,000 — 15,828,000 Other equity securities — 3,327,000 — 3,327,000 Total securities available for sale — 308,146,000 — 308,146,000 Interest rate swap agreements — 1,623,000 — 1,623,000 Total assets $ — $ 309,769,000 $ — $ 309,769,000 At December 31, 2016 Level 1 Level 2 Level 3 Total Securities available for sale Mortgage-backed securities $ — $ 280,604,000 $ — $ 280,604,000 State and political subdivisions — 16,482,000 — 16,482,000 Other equity securities — 3,330,000 — 3,330,000 Total securities available for sale $ — $ 300,416,000 $ — $ 300,416,000 Interest rate swap agreements $ — $ 1,790,000 $ — $ 1,790,000 Total assets $ — $ 302,206,000 $ — $ 302,206,000 At June 30, 2016 Level 1 Level 2 Level 3 Total Securities available for sale U.S. Treasury and agency $ — $ 522,000 $ — $ 522,000 Mortgage-backed securities — 219,353,000 — 219,353,000 State and political subdivisions — 18,415,000 — 18,415,000 Other equity securities — 3,037,000 — 3,037,000 Total assets $ — $ 241,327,000 $ — $ 241,327,000 At June 30, 2016 Level 1 Level 2 Level 3 Total Interest rate swap agreements $ — $ 208,000 $ — $ 208,000 Total liabilities $ — $ 208,000 $ — $ 208,000 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 $39,000 , $205,000 and $115,000 at June 30, 2017 , December 31, 2016 , and June 30, 2016 , 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 $202,000 , $478,000 and $567,000 at June 30, 2017 , December 31, 2016 , and June 30, 2016 , respectively. At June 30, 2017 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 324,000 $ — $ 324,000 Impaired loans — 269,000 — 269,000 Total assets $ — $ 593,000 $ — $ 593,000 At December 31, 2016 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 375,000 $ — $ 375,000 Impaired loans — 827,000 — 827,000 Total assets $ — $ 1,202,000 $ — $ 1,202,000 At June 30, 2016 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 1,129,000 $ — $ 1,129,000 Impaired loans — 1,889,000 — 1,889,000 Total assets $ — $ 3,018,000 $ — $ 3,018,000 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 June 30, 2017 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 20,189,000 $ 20,189,000 $ 20,189,000 $ — $ — Interest bearing deposits in other banks 3,820,000 3,820,000 3,820,000 — — Securities available for sale 308,146,000 308,146,000 — 308,146,000 — Securities to be held to maturity 244,123,000 246,238,000 — 246,238,000 — Restricted equity securities 12,311,000 12,311,000 — 12,311,000 — Loans held for sale 865,000 865,000 — 865,000 — Loans (net of allowance for loan losses) Commercial Real estate 301,722,000 295,339,000 — — 295,339,000 Construction 32,989,000 32,291,000 — — 32,291,000 Other 171,099,000 169,509,000 — 33,000 169,476,000 Municipal 28,672,000 28,902,000 — — 28,902,000 Residential Term 425,985,000 428,556,000 — 236,000 428,320,000 Construction 15,025,000 14,983,000 — — 14,983,000 Home equity line of credit 109,516,000 107,855,000 — — 107,855,000 Consumer 25,046,000 24,654,000 — — 24,654,000 Total loans 1,110,054,000 1,102,089,000 — 269,000 1,101,820,000 Mortgage servicing rights 1,109,000 1,888,000 — 1,888,000 — Interest rate swap agreements 1,623,000 1,623,000 — 1,623,000 — Accrued interest receivable 7,192,000 7,192,000 — 7,192,000 — Financial liabilities Demand deposits $ 180,298,000 $ 174,958,000 $ — $ 174,958,000 $ — NOW deposits 250,316,000 234,049,000 — 234,049,000 — Money market deposits 134,760,000 126,402,000 — 126,402,000 — Savings deposits 226,391,000 200,712,000 — 200,712,000 — Local certificates of deposit 217,495,000 217,021,000 — 217,021,000 — National certificates of deposit 309,999,000 309,853,000 — 309,853,000 — Total deposits 1,319,259,000 1,262,995,000 — 1,262,995,000 — Repurchase agreements 67,154,000 64,852,000 — 64,852,000 — Federal Home Loan Bank advances 215,123,000 214,893,000 — 214,893,000 — Total borrowed funds 282,277,000 279,745,000 — 279,745,000 — Accrued interest payable 603,000 603,000 — 603,000 — The carrying amounts and estimated fair values for financial instruments as of December 31, 2016 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 17,366,000 $ 17,366,000 $ 17,366,000 $ — $ — Interest bearing deposits in other banks 293,000 293,000 293,000 — — Securities available for sale 300,416,000 300,416,000 — 300,416,000 — Securities to be held to maturity 226,828,000 225,537,000 — 225,537,000 — Restricted equity securities 11,930,000 11,930,000 — 11,930,000 — Loans held for sale 782,000 782,000 — 782,000 — Loans (net of allowance for loan losses) Commercial Real estate 297,952,000 293,103,000 — 558,000 292,545,000 Construction 24,954,000 24,548,000 — — 24,548,000 Other 148,737,000 147,394,000 — 33,000 147,361,000 Municipal 27,035,000 27,446,000 — — 27,446,000 Residential Term 409,999,000 410,327,000 — 236,000 410,091,000 Construction 18,253,000 18,125,000 — — 18,125,000 Home equity line of credit 109,986,000 108,740,000 — — 108,740,000 Consumer 24,472,000 24,131,000 — — 24,131,000 Total loans 1,061,388,000 1,053,814,000 — 827,000 1,052,987,000 Mortgage servicing rights 1,113,000 1,696,000 — 1,696,000 — Interest rate swap agreements 1,790,000 1,790,000 — 1,790,000 — Accrued interest receivable 5,532,000 5,532,000 — 5,532,000 — Financial liabilities Demand deposits $ 140,482,000 $ 133,342,000 $ — $ 133,342,000 $ — NOW deposits 282,971,000 259,418,000 — 259,418,000 — Money market deposits 125,544,000 115,087,000 — 115,087,000 — Savings deposits 217,340,000 188,260,000 — 188,260,000 — Local certificates of deposit 210,316,000 209,370,000 — 209,370,000 — National certificates of deposit 266,304,000 266,372,000 — 266,372,000 — Total deposits 1,242,957,000 1,171,849,000 — 1,171,849,000 — Repurchase agreements 84,174,000 79,827,000 — 79,827,000 — Federal Home Loan Bank advances 194,727,000 193,733,000 — 193,733,000 — Total borrowed funds 278,901,000 273,560,000 — 273,560,000 — Accrued interest payable 479,000 479,000 — 479,000 — The carrying amount and estimated fair values for financial instruments as of June 30, 2016 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 20,838,000 $ 20,838,000 $ 20,838,000 $ — $ — Interest bearing deposits in other banks 7,568,000 7,568,000 7,568,000 — — Securities available for sale 241,327,000 241,327,000 — 241,327,000 — Securities to be held to maturity 216,272,000 225,200,000 — 225,200,000 — Restricted equity securities 14,441,000 14,441,000 — 14,441,000 — Loans held for sale 1,553,000 1,553,000 — 1,553,000 — Loans (net of allowance for loan losses) Commercial Real estate 298,822,000 294,749,000 — 544,000 294,205,000 Construction 18,078,000 17,832,000 — — 17,832,000 Other 134,632,000 134,567,000 — 348,000 134,219,000 Municipal 25,512,000 26,833,000 — — 26,833,000 Residential Term 401,911,000 410,502,000 — 933,000 409,569,000 Construction 13,364,000 13,289,000 — — 13,289,000 Home equity line of credit 111,537,000 110,635,000 — — 110,635,000 Consumer 24,159,000 24,126,000 — 64,000 24,062,000 Total loans 1,028,015,000 1,032,533,000 — 1,889,000 1,030,644,000 Mortgage servicing rights 948,000 1,489,000 — 1,489,000 — Accrued interest receivable 6,372,000 6,372,000 — 6,372,000 — Financial liabilities Demand deposits $ 130,168,000 $ 134,043,000 $ — $ 134,043,000 $ — NOW deposits 254,136,000 253,251,000 — 253,251,000 — Money market deposits 73,030,000 68,204,000 — 68,204,000 — Savings deposits 208,826,000 196,812,000 — 196,812,000 — Local certificates of deposit 211,006,000 213,726,000 — 213,726,000 — National certificates of deposit 268,543,000 268,873,000 — 268,873,000 — Total deposits 1,145,709,000 1,134,909,000 — 1,134,909,000 — Repurchase agreements 82,965,000 81,775,000 — 81,775,000 — Federal Home Loan Bank advances 200,130,000 202,184,000 — 202,184,000 — Total borrowed funds 283,095,000 283,959,000 — 283,959,000 — Interest rate swap agreements 208,000 208,000 208,000 Accrued interest payable 499,000 499,000 — 499,000 —

Impact of Recently Issued Accou

Impact of Recently Issued Accounting Standards	6 Months Ended
	Jun. 30, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Impact of Recently Issued Accounting Standards	Impact of Recently Issued Accounting Standards The Financial Accounting Standards Board (“FASB”) issued Accounting Standards Updated (“ASU”) No. 2014-09, Revenue from Contracts with Customers, in 2014 to replace the current plethora of industry-specific rules with a broad, principles-based framework for recognizing and measuring revenue. Due to the complexity of the new pronouncement and the anticipated effort required by entities in many industries to implement ASU No. 2014-09, FASB delayed the effective date. Public business entities, certain not-for-profit entities, and certain employee benefit plans should apply the guidance to annual reporting periods beginning after December 15, 2017, and all other entities should apply the guidance to annual reporting periods beginning after December 15, 2018. FASB formed a Transition Resource Group to assist it in identifying implementation issues that may require further clarification or amendment to ASU No. 2014-09. As a result of that group’s deliberations, FASB has issued the following amendments, which will be effective concurrently with ASU No. 2014-09: ASU No. 2016-08, Principal versus Agent Considerations, which clarifies whether an entity should record the gross amount of revenue or only its ultimate share when a third party is also involved in providing goods or services to a customer; ASU No. 2016-10, Identifying Performance Obligations and Licensing, which clarifies and simplifies the process for determining whether performance obligations to a customer should be segregated and accounted for individually, and clarifies how the new revenue rules apply to licenses of intellectual property; and ASU No. 2016-12, Narrow-Scope Improvements and Practical Expedients, which clarifies and simplifies the process of assessing collectability of consideration under a contract, presentation of sales taxes, accounting for noncash consideration received, and certain transitional issues. Since the guidance does not apply to revenue associated with financial instruments, including loans and securities that are accounted for under other U.S. GAAP, the Company does not expect the new guidance to have a material impact on revenue most closely associated with financial instruments, including interest income and expense. The Company is currently performing an overall assessment of revenue streams and reviewing contracts potentially affected by the ASU including trust and asset management fees, deposit related fees, interchange fees, and merchant income, to determine the potential impact the new guidance is expected to have on the Company’s Consolidated Financial Statements. In addition, the Company continues to follow certain implementation issues relevant to the banking industry which are still pending resolution. The Company plans to adopt ASU No. 2014-09 on January 1, 2018 utilizing the modified retrospective approach. In January 2016, the FASB issued Accounting Standards Update ("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. Management does not expect 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. In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting. This ASU includes provisions intended to simplify various aspects related to how share-based payments are accounted for and presented in the financial statements. Some of the key provisions of this new ASU include: (1) companies will no longer record excess tax benefits and certain tax deficiencies in additional paid-in capital (APIC). Instead, they will record all excess tax benefits and tax deficiencies as income tax expense or benefit in the income statement, and APIC pools will be eliminated. The guidance also eliminates the requirement that excess tax benefits be realized before companies can recognize them. In addition, the guidance requires companies to present excess tax benefits as an operating activity on the statement of cash flows rather than as a financing activity; (2) increase the amount an employer can withhold to cover income taxes on awards and still qualify for the exception to liability classification for shares used to satisfy the employer’s statutory income tax withholding obligation. The new guidance will also require an employer to classify the cash paid to a tax authority when shares are withheld to satisfy its statutory income tax withholding obligation as a financing activity on its statement of cash flows (current guidance did not specify how these cash flows should be classified); and (3) permit companies to make an accounting policy election for the impact of forfeitures on the recognition of expense for share-based payment awards. Forfeitures can be estimated on the date the award is granted, or recognized when they occur. ASU No. 2016-09 is effective for interim and annual reporting periods beginning after December 15, 2016. The adoption of the ASU did not have a material effect on the Company’s consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. Under the new guidance, which will replace the existing incurred loss model for recognizing credit losses, banks and other lending institutions will be required to recognize the full amount of expected credit losses. The new guidance, which is referred to as the current expected credit loss model, requires that expected credit losses for financial assets held at the reporting date that are accounted for at amortized cost be measured and recognized based on historical experience and current and reasonably supportable forecasted conditions to reflect the full amount of expected credit losses. A modified version of these requirements also applies to debt securities classified as available for sale. The ASU is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within such years. The Company is currently evaluating the impact of the adoption of the ASU on its consolidated financial statements, but does not anticipate any material impact at this time. The Bank has formed an implementation committee for ASU 2016-13. To date, committee members have participated in educational seminars on the new standards, begun the process of identifying the historical data sets that will be necessary to implement the new standard, and researched third-party vendors who provide software solutions for ASU 2016-13 modeling and calculation. In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The ASU was issued to reduce the cost and complexity of the goodwill impairment test. To simplify the subsequent measurement of goodwill, step two of the goodwill impairment test was eliminated. Instead, a Company will recognize an impairment of goodwill should the carrying value of a reporting unit exceed its fair value (i.e. step one). The ASU will be effective for the Company on January 1, 2020 and will be applied prospectively. The Company does not expect the implementation to have a material effect on the Company's consolidated financial statements. In March 2017, the FASB issued ASU No. 2017-08, Premium Amortization on Purchased Callable Debt Securities. This ASU shortens the amortization period for the premium on certain purchased callable debt securities to the earliest call date. Today, entities generally amortize the premium over the contractual life of the security. The new guidance does not change the accounting for purchased callable debt securities held at a discount; the discount continues to be amortized to maturity. The ASU is effective for interim and annual reporting periods beginning after December 15, 2018; early adoption is permitted. The guidance calls for a modified retrospective transition approach under which a cumulative-effect adjustment will be made to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. Management is reviewing the guidance in the ASU to determine whether it will have a material effect on the Company's consolidated financial statements. In May 2017, the FASB issued ASU No. 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification. The ASU was issued to provide clarity and reduce both 1) diversity in practice and 2) cost and complexity when applying the guidance in Topic 718, Compensation-Stock Compensation, to a change to the terms or conditions of a shared-based payment award. The ASU include guidance on determining which changes to the terms and conditions of share-based payment awards require and entity to apply modification accounting under Topic 718. The ASU is effective for the annual period, and interim periods within the annual periods, beginning after December 15, 2017. Early adoption is permitted, including adoption in any interim period. The ASU should be applied prospectively to an award modified on or after the adoption date. The ASU will not have a material effect on the Company's consolidated financial statements.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Financial Derivative Instruments	As part of its overall asset and liability management strategy, the Company periodically uses derivative instruments to minimize significant unplanned fluctuations in earnings and cash flows caused by interest rate volatility. The Company’s interest rate risk management strategy involves modifying the re-pricing characteristics of certain assets or liabilities so that changes in interest rates do not have a significant effect on net interest income. The Company recognizes its derivative instruments in the consolidated balance sheet at fair value. On the date the derivative instrument is entered into, the Company designates whether the derivative is part of a hedging relationship (i.e., cash flow or fair value hedge). The Company formally documents relationships between hedging instruments and hedged items, as well as its risk management objective and strategy for undertaking hedge transactions. The Company also assesses, both at the hedge’s inception and on an ongoing basis, whether the derivatives used in hedging transactions are highly effective in offsetting the changes in cash flows or fair values of hedged items. Changes in fair value of derivative instruments that are highly effective and qualify as cash flow hedges are recorded in other comprehensive income or loss. Any ineffective portion is recorded in earnings. The Company discontinues hedge accounting when it is determined that the derivative is no longer highly effective in offsetting changes of the hedged risk on the hedged item, or management determines that the designation of the derivative as a hedging instrument is no longer appropriate. In 2016, interest rate swaps were contracted to limit the Company’s exposure to rising interest rates on short-term liabilities indexed to one-month London Inter-bank Offered Rates (LIBOR). The interest rate swaps were designated as cash flow hedges.
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	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.
Fair Value of Financial Instruments	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.
Impact of Recently Issued Accounting Standards	The Financial Accounting Standards Board (“FASB”) issued Accounting Standards Updated (“ASU”) No. 2014-09, Revenue from Contracts with Customers, in 2014 to replace the current plethora of industry-specific rules with a broad, principles-based framework for recognizing and measuring revenue. Due to the complexity of the new pronouncement and the anticipated effort required by entities in many industries to implement ASU No. 2014-09, FASB delayed the effective date. Public business entities, certain not-for-profit entities, and certain employee benefit plans should apply the guidance to annual reporting periods beginning after December 15, 2017, and all other entities should apply the guidance to annual reporting periods beginning after December 15, 2018. FASB formed a Transition Resource Group to assist it in identifying implementation issues that may require further clarification or amendment to ASU No. 2014-09. As a result of that group’s deliberations, FASB has issued the following amendments, which will be effective concurrently with ASU No. 2014-09: ASU No. 2016-08, Principal versus Agent Considerations, which clarifies whether an entity should record the gross amount of revenue or only its ultimate share when a third party is also involved in providing goods or services to a customer; ASU No. 2016-10, Identifying Performance Obligations and Licensing, which clarifies and simplifies the process for determining whether performance obligations to a customer should be segregated and accounted for individually, and clarifies how the new revenue rules apply to licenses of intellectual property; and ASU No. 2016-12, Narrow-Scope Improvements and Practical Expedients, which clarifies and simplifies the process of assessing collectability of consideration under a contract, presentation of sales taxes, accounting for noncash consideration received, and certain transitional issues. Since the guidance does not apply to revenue associated with financial instruments, including loans and securities that are accounted for under other U.S. GAAP, the Company does not expect the new guidance to have a material impact on revenue most closely associated with financial instruments, including interest income and expense. The Company is currently performing an overall assessment of revenue streams and reviewing contracts potentially affected by the ASU including trust and asset management fees, deposit related fees, interchange fees, and merchant income, to determine the potential impact the new guidance is expected to have on the Company’s Consolidated Financial Statements. In addition, the Company continues to follow certain implementation issues relevant to the banking industry which are still pending resolution. The Company plans to adopt ASU No. 2014-09 on January 1, 2018 utilizing the modified retrospective approach. In January 2016, the FASB issued Accounting Standards Update ("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. Management does not expect 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. In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting. This ASU includes provisions intended to simplify various aspects related to how share-based payments are accounted for and presented in the financial statements. Some of the key provisions of this new ASU include: (1) companies will no longer record excess tax benefits and certain tax deficiencies in additional paid-in capital (APIC). Instead, they will record all excess tax benefits and tax deficiencies as income tax expense or benefit in the income statement, and APIC pools will be eliminated. The guidance also eliminates the requirement that excess tax benefits be realized before companies can recognize them. In addition, the guidance requires companies to present excess tax benefits as an operating activity on the statement of cash flows rather than as a financing activity; (2) increase the amount an employer can withhold to cover income taxes on awards and still qualify for the exception to liability classification for shares used to satisfy the employer’s statutory income tax withholding obligation. The new guidance will also require an employer to classify the cash paid to a tax authority when shares are withheld to satisfy its statutory income tax withholding obligation as a financing activity on its statement of cash flows (current guidance did not specify how these cash flows should be classified); and (3) permit companies to make an accounting policy election for the impact of forfeitures on the recognition of expense for share-based payment awards. Forfeitures can be estimated on the date the award is granted, or recognized when they occur. ASU No. 2016-09 is effective for interim and annual reporting periods beginning after December 15, 2016. The adoption of the ASU did not have a material effect on the Company’s consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. Under the new guidance, which will replace the existing incurred loss model for recognizing credit losses, banks and other lending institutions will be required to recognize the full amount of expected credit losses. The new guidance, which is referred to as the current expected credit loss model, requires that expected credit losses for financial assets held at the reporting date that are accounted for at amortized cost be measured and recognized based on historical experience and current and reasonably supportable forecasted conditions to reflect the full amount of expected credit losses. A modified version of these requirements also applies to debt securities classified as available for sale. The ASU is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within such years. The Company is currently evaluating the impact of the adoption of the ASU on its consolidated financial statements, but does not anticipate any material impact at this time. The Bank has formed an implementation committee for ASU 2016-13. To date, committee members have participated in educational seminars on the new standards, begun the process of identifying the historical data sets that will be necessary to implement the new standard, and researched third-party vendors who provide software solutions for ASU 2016-13 modeling and calculation. In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The ASU was issued to reduce the cost and complexity of the goodwill impairment test. To simplify the subsequent measurement of goodwill, step two of the goodwill impairment test was eliminated. Instead, a Company will recognize an impairment of goodwill should the carrying value of a reporting unit exceed its fair value (i.e. step one). The ASU will be effective for the Company on January 1, 2020 and will be applied prospectively. The Company does not expect the implementation to have a material effect on the Company's consolidated financial statements. In March 2017, the FASB issued ASU No. 2017-08, Premium Amortization on Purchased Callable Debt Securities. This ASU shortens the amortization period for the premium on certain purchased callable debt securities to the earliest call date. Today, entities generally amortize the premium over the contractual life of the security. The new guidance does not change the accounting for purchased callable debt securities held at a discount; the discount continues to be amortized to maturity. The ASU is effective for interim and annual reporting periods beginning after December 15, 2018; early adoption is permitted. The guidance calls for a modified retrospective transition approach under which a cumulative-effect adjustment will be made to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. Management is reviewing the guidance in the ASU to determine whether it will have a material effect on the Company's consolidated financial statements. In May 2017, the FASB issued ASU No. 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification. The ASU was issued to provide clarity and reduce both 1) diversity in practice and 2) cost and complexity when applying the guidance in Topic 718, Compensation-Stock Compensation, to a change to the terms or conditions of a shared-based payment award. The ASU include guidance on determining which changes to the terms and conditions of share-based payment awards require and entity to apply modification accounting under Topic 718. The ASU is effective for the annual period, and interim periods within the annual periods, beginning after December 15, 2017. Early adoption is permitted, including adoption in any interim period. The ASU should be applied prospectively to an award modified on or after the adoption date. The ASU will not have a material effect on the Company's consolidated financial statements.

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2017
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 June 30, 2017 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale Mortgage-backed securities $ 290,379,000 $ 1,381,000 $ (2,769,000 ) $ 288,991,000 State and political subdivisions 15,401,000 486,000 (59,000 ) 15,828,000 Other equity securities 3,266,000 65,000 (4,000 ) 3,327,000 $ 309,046,000 $ 1,932,000 $ (2,832,000 ) $ 308,146,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 11,152,000 $ — $ (181,000 ) $ 10,971,000 Mortgage-backed securities 27,224,000 820,000 (41,000 ) 28,003,000 State and political subdivisions 201,447,000 3,573,000 (2,056,000 ) 202,964,000 Corporate securities 4,300,000 — — 4,300,000 $ 244,123,000 $ 4,393,000 $ (2,278,000 ) $ 246,238,000 Restricted equity securities Federal Home Loan Bank Stock $ 11,274,000 $ — $ — $ 11,274,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 12,311,000 $ — $ — $ 12,311,000 The following table summarizes the amortized cost and estimated fair value of investment securities at December 31, 2016 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale Mortgage-backed securities $ 282,397,000 $ 1,334,000 $ (3,127,000 ) $ 280,604,000 State and political subdivisions 16,183,000 475,000 (176,000 ) 16,482,000 Other equity securities 3,274,000 63,000 (7,000 ) 3,330,000 $ 301,854,000 $ 1,872,000 $ (3,310,000 ) $ 300,416,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 11,943,000 $ 35,000 $ (233,000 ) $ 11,745,000 Mortgage-backed securities 31,201,000 967,000 (147,000 ) 32,021,000 State and political subdivisions 179,384,000 1,971,000 (3,884,000 ) 177,471,000 Corporate securities 4,300,000 — — 4,300,000 $ 226,828,000 $ 2,973,000 $ (4,264,000 ) $ 225,537,000 Restricted equity securities Federal Home Loan Bank Stock $ 10,893,000 $ — $ — $ 10,893,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 11,930,000 $ — $ — $ 11,930,000 The following table summarizes the amortized cost and estimated fair value of investment securities at June 30, 2016 : Amortized Cost Unrealized Gains Unrealized Losses Fair Value (Estimated) Securities available for sale U.S. Government-sponsored agencies $ 522,000 $ — $ — $ 522,000 Mortgage-backed securities 214,303,000 5,274,000 (224,000 ) 219,353,000 State and political subdivisions 17,315,000 1,100,000 — 18,415,000 Other equity securities 3,034,000 48,000 (45,000 ) 3,037,000 $ 235,174,000 $ 6,422,000 $ (269,000 ) $ 241,327,000 Securities to be held to maturity U.S. Government-sponsored agencies $ 35,962,000 $ 31,000 $ — $ 35,993,000 Mortgage-backed securities 37,096,000 1,651,000 (24,000 ) 38,723,000 State and political subdivisions 138,914,000 7,270,000 — 146,184,000 Corporate securities 4,300,000 — — 4,300,000 $ 216,272,000 $ 8,952,000 $ (24,000 ) $ 225,200,000 Restricted equity securities Federal Home Loan Bank Stock $ 13,404,000 $ — $ — $ 13,404,000 Federal Reserve Bank Stock 1,037,000 — — 1,037,000 $ 14,441,000 $ — $ — $ 14,441,000
Contractual Maturities of Investment Securities	The following table summarizes the contractual maturities of investment securities at June 30, 2017 : 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 $ 26,000 $ 26,000 $ 707,000 $ 710,000 Due in 1 to 5 years 1,722,000 1,758,000 14,536,000 14,813,000 Due in 5 to 10 years 34,382,000 35,099,000 41,373,000 42,251,000 Due after 10 years 269,650,000 267,936,000 187,507,000 188,464,000 Equity securities 3,266,000 3,327,000 — — $ 309,046,000 $ 308,146,000 $ 244,123,000 $ 246,238,000 The following table summarizes the contractual maturities of investment securities at December 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 $ 253,000 $ 253,000 $ 906,000 $ 913,000 Due in 1 to 5 years 2,251,000 2,298,000 13,451,000 13,714,000 Due in 5 to 10 years 21,043,000 21,505,000 41,588,000 42,448,000 Due after 10 years 275,033,000 273,030,000 170,883,000 168,462,000 Equity securities 3,274,000 3,330,000 — — $ 301,854,000 $ 300,416,000 $ 226,828,000 $ 225,537,000 The following table summarizes the contractual maturities of investment securities at June 30, 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 $ 2,058,000 $ 2,072,000 $ 1,847,000 $ 1,857,000 Due in 1 to 5 years 3,326,000 3,432,000 13,162,000 13,538,000 Due in 5 to 10 years 24,917,000 25,839,000 42,679,000 44,693,000 Due after 10 years 201,839,000 206,947,000 158,584,000 165,112,000 Equity securities 3,034,000 3,037,000 — — $ 235,174,000 $ 241,327,000 $ 216,272,000 $ 225,200,000
Schedule of Securities Gains and Losses	The following table shows securities gains and losses for the six months and quarters ended June 30, 2017 and 2016 : For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Proceeds from sales of securities $ 3,000 $ 8,954,000 $ — $ 86,000 Gross realized gains 3,000 531,000 — — Gross realized losses — — — (5,000 ) Net gain (loss) $ 3,000 $ 531,000 $ — $ (5,000 ) Related income taxes $ 1,000 $ 186,000 $ — $ (2,000 )
Schedule of Securities Temporarily Impaired	Information regarding securities temporarily impaired as of June 30, 2017 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 $ 7,972,000 $ (181,000 ) $ — $ — $ 7,972,000 $ (181,000 ) Mortgage-backed securities 170,966,000 (2,613,000 ) 7,643,000 (197,000 ) 178,609,000 (2,810,000 ) State and political subdivisions 55,952,000 (2,115,000 ) — — 55,952,000 (2,115,000 ) Other equity securities 69,000 (1,000 ) 9,000 (3,000 ) 78,000 (4,000 ) $ 234,959,000 $ (4,910,000 ) $ 7,652,000 $ (200,000 ) $ 242,611,000 $ (5,110,000 ) As of December 31, 2016 , there were 299 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, 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 $ 6,642,000 $ (233,000 ) $ — $ — $ 6,642,000 $ (233,000 ) Mortgage-backed securities 197,528,000 (3,090,000 ) 2,905,000 (184,000 ) 200,433,000 (3,274,000 ) State and political subdivisions 72,348,000 (4,060,000 ) — — 72,348,000 (4,060,000 ) Other equity securities — — 128,000 (7,000 ) 128,000 (7,000 ) $ 276,518,000 $ (7,383,000 ) $ 3,033,000 $ (191,000 ) $ 279,551,000 $ (7,574,000 ) As of June 30, 2016 , there were 25 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 13 had been temporarily impaired for 12 months or more. Information regarding securities temporarily impaired as of June 30, 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 Mortgage-backed securities 21,849,000 (168,000 ) 2,615,000 (80,000 ) 24,464,000 (248,000 ) Other equity securities 135,000 (15,000 ) 93,000 (30,000 ) 228,000 (45,000 ) $ 21,984,000 $ (183,000 ) $ 2,708,000 $ (110,000 ) $ 24,692,000 $ (293,000 )

Loans (Tables)

Loans (Tables)	6 Months Ended
	Jun. 30, 2017
Loans and Leases Receivable Disclosure [Abstract]
Composition of Loan Portfolio	The following table shows the composition of the Company's loan portfolio as of June 30, 2017 and 2016 and at December 31, 2016 : June 30, 2017 December 31, 2016 June 30, 2016 Commercial Real estate $ 306,490,000 27.4 % $ 302,506,000 28.2 % $ 303,312,000 29.2 % Construction 33,605,000 3.0 % 25,406,000 2.4 % 18,439,000 1.8 % Other 173,691,000 15.5 % 150,769,000 14.1 % 136,651,000 13.2 % Municipal 28,695,000 2.6 % 27,056,000 2.5 % 25,531,000 2.5 % Residential Term 427,171,000 38.1 % 411,469,000 38.4 % 403,461,000 38.8 % Construction 15,056,000 1.3 % 18,303,000 1.7 % 13,403,000 1.3 % Home equity line of credit 110,328,000 9.8 % 110,907,000 10.4 % 112,536,000 10.8 % Consumer 25,629,000 2.3 % 25,110,000 2.3 % 24,880,000 2.4 % Total $ 1,120,665,000 100.0 % $ 1,071,526,000 100.0 % $ 1,038,213,000 100.0 %
Past Due Loans Aging	Information on the past-due status of loans by class of financing receivable as of June 30, 2017 , 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 $ 88,000 $ — $ 1,387,000 $ 1,475,000 $ 305,015,000 $ 306,490,000 $ — Construction — — — — 33,605,000 33,605,000 — Other 29,000 259,000 515,000 803,000 172,888,000 173,691,000 — Municipal — — — — 28,695,000 28,695,000 — Residential Term 533,000 3,343,000 1,507,000 5,383,000 421,788,000 427,171,000 — Construction 99,000 — — 99,000 14,957,000 15,056,000 — Home equity line of credit 440,000 406,000 751,000 1,597,000 108,731,000 110,328,000 — Consumer 282,000 118,000 29,000 429,000 25,200,000 25,629,000 29,000 Total $ 1,471,000 $ 4,126,000 $ 4,189,000 $ 9,786,000 $ 1,110,879,000 $ 1,120,665,000 $ 29,000 Information on the past-due status of loans by class of financing receivable as of December 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 $ 1,039,000 $ 22,000 $ 2,415,000 $ 3,476,000 $ 299,030,000 $ 302,506,000 $ 753,000 Construction — — — — 25,406,000 25,406,000 — Other 202,000 33,000 796,000 1,031,000 149,738,000 150,769,000 20,000 Municipal — — — — 27,056,000 27,056,000 — Residential Term 631,000 3,970,000 1,802,000 6,403,000 405,066,000 411,469,000 — Construction — — — — 18,303,000 18,303,000 — Home equity line of credit 704,000 157,000 703,000 1,564,000 109,343,000 110,907,000 — Consumer 135,000 45,000 4,000 184,000 24,926,000 25,110,000 4,000 Total $ 2,711,000 $ 4,227,000 $ 5,720,000 $ 12,658,000 $ 1,058,868,000 $ 1,071,526,000 $ 777,000 Information on the past-due status of loans by class of financing receivable as of June 30, 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 $ 332,000 $ 998,000 $ 296,000 $ 1,626,000 $ 301,686,000 $ 303,312,000 $ — Construction — 29,000 17,000 46,000 18,393,000 18,439,000 — Other 131,000 218,000 314,000 663,000 135,988,000 136,651,000 — Municipal — — — — 25,531,000 25,531,000 — Residential Term 662,000 4,235,000 2,110,000 7,007,000 396,454,000 403,461,000 245,000 Construction — — — — 13,403,000 13,403,000 — Home equity line of credit 764,000 27,000 362,000 1,153,000 111,383,000 112,536,000 68,000 Consumer 283,000 7,000 8,000 298,000 24,582,000 24,880,000 8,000 Total $ 2,172,000 $ 5,514,000 $ 3,107,000 $ 10,793,000 $ 1,027,420,000 $ 1,038,213,000 $ 321,000
Nonaccrual Loans	Information on nonaccrual loans as of June 30, 2017 and 2016 and at December 31, 2016 is presented in the following table: June 30, 2017 December 31, 2016 June 30, 2016 Commercial Real estate $ 1,814,000 $ 1,907,000 $ 1,227,000 Construction — — 46,000 Other 885,000 964,000 378,000 Municipal — — — Residential Term 3,852,000 4,060,000 4,291,000 Construction — — — Home equity line of credit 883,000 843,000 421,000 Consumer — — 115,000 Total $ 7,434,000 $ 7,774,000 $ 6,478,000
Impaired Loans by Class of Financing Receivable	A breakdown of impaired loans by class of financing receivable as of and for the period ended June 30, 2017 is presented in the following table: For the six months ended June 30, 2017 For the quarter ended June 30, 2017 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Recognized Interest Income Average Recorded Investment Recognized Interest Income With No Related Allowance Commercial Real estate $ 5,686,000 $ 6,171,000 $ — $ 5,429,000 $ 94,000 $ 5,414,000 $ 46,000 Construction — — — — — — — Other 1,405,000 1,449,000 — 1,507,000 19,000 1,418,000 12,000 Municipal — — — — — — — Residential Term 11,065,000 12,152,000 — 11,343,000 161,000 11,283,000 73,000 Construction — — — — — — — Home equity line of credit 1,380,000 1,731,000 — 1,387,000 14,000 1,397,000 7,000 Consumer — — — — — — — $ 19,536,000 $ 21,503,000 $ — $ 19,666,000 $ 288,000 $ 19,512,000 $ 138,000 With an Allowance Recorded Commercial Real estate $ 4,167,000 $ 4,356,000 $ 221,000 $ 4,644,000 $ 85,000 $ 4,549,000 $ 43,000 Construction 763,000 763,000 103,000 763,000 18,000 763,000 9,000 Other 228,000 268,000 36,000 177,000 6,000 230,000 4,000 Municipal — — — — — — — Residential Term 1,925,000 2,067,000 209,000 1,971,000 41,000 1,864,000 21,000 Construction — — — — — — — Home equity line of credit 25,000 27,000 25,000 26,000 — 25,000 — Consumer — — — — — — — $ 7,108,000 $ 7,481,000 $ 594,000 $ 7,581,000 $ 150,000 $ 7,431,000 $ 77,000 Total Commercial Real estate $ 9,853,000 $ 10,527,000 $ 221,000 $ 10,073,000 $ 179,000 $ 9,963,000 $ 89,000 Construction 763,000 763,000 103,000 763,000 18,000 763,000 9,000 Other 1,633,000 1,717,000 36,000 1,684,000 25,000 1,648,000 16,000 Municipal — — — — — — — Residential Term 12,990,000 14,219,000 209,000 13,314,000 202,000 13,147,000 94,000 Construction — — — — — — — Home equity line of credit 1,405,000 1,758,000 25,000 1,413,000 14,000 1,422,000 7,000 Consumer — — — — — — — $ 26,644,000 $ 28,984,000 $ 594,000 $ 27,247,000 $ 438,000 $ 26,943,000 $ 215,000 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, 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 $ 5,201,000 $ 5,614,000 $ — $ 6,252,000 $ 220,000 Construction — — — 32,000 — Other 1,671,000 1,852,000 — 1,074,000 86,000 Municipal — — — — — Residential Term 11,483,000 12,654,000 — 11,025,000 442,000 Construction — — — — — Home equity line of credit 1,361,000 1,733,000 — 1,213,000 33,000 Consumer — — — 9,000 — $ 19,716,000 $ 21,853,000 $ — $ 19,605,000 $ 781,000 With an Allowance Recorded Commercial Real estate $ 4,820,000 $ 4,925,000 $ 505,000 $ 4,153,000 $ 186,000 Construction 763,000 763,000 100,000 816,000 36,000 Other 72,000 72,000 39,000 317,000 — Municipal — — — — — Residential Term 2,186,000 2,328,000 304,000 3,209,000 101,000 Construction — — — — — Home equity line of credit 26,000 28,000 26,000 69,000 — Consumer — — — 48,000 — $ 7,867,000 $ 8,116,000 $ 974,000 $ 8,612,000 $ 323,000 Total Commercial Real estate $ 10,021,000 $ 10,539,000 $ 505,000 $ 10,405,000 $ 406,000 Construction 763,000 763,000 100,000 848,000 36,000 Other 1,743,000 1,924,000 39,000 1,391,000 86,000 Municipal — — — — — Residential Term 13,669,000 14,982,000 304,000 14,234,000 543,000 Construction — — — — — Home equity line of credit 1,387,000 1,761,000 26,000 1,282,000 33,000 Consumer — — — 57,000 — $ 27,583,000 $ 29,969,000 $ 974,000 $ 28,217,000 $ 1,104,000 A breakdown of impaired loans by class of financing receivable as of and for the period ended June 30, 2016 is presented in the following table: For the six months ended June 30, 2016 For the quarter ended June 30, 2016 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Recognized Interest Income Average Recorded Investment Recognized Interest Income With No Related Allowance Commercial Real estate $ 6,654,000 $ 6,817,000 $ — $ 7,068,000 $ 145,000 $ 6,916,000 $ 66,000 Construction 46,000 46,000 — 60,000 1,000 40,000 — Other 955,000 994,000 — 1,083,000 21,000 1,045,000 13,000 Municipal — — — — — — — Residential Term 10,924,000 12,085,000 — 10,653,000 209,000 10,592,000 118,000 Construction — — — — — — — Home equity line of credit 912,000 1,266,000 — 1,216,000 13,000 1,079,000 5,000 Consumer — — — — — — — $ 19,491,000 $ 21,208,000 $ — $ 20,080,000 $ 389,000 $ 19,672,000 $ 202,000 With an Allowance Recorded Commercial Real estate $ 4,031,000 $ 4,116,000 $ 369,000 $ 3,458,000 $ 71,000 $ 3,518,000 $ 35,000 Construction 788,000 788,000 97,000 857,000 18,000 788,000 10,000 Other 524,000 530,000 158,000 209,000 12,000 337,000 12,000 Municipal — — — — — — — Residential Term 3,181,000 3,266,000 326,000 3,830,000 66,000 3,664,000 23,000 Construction — — — — — — — Home equity line of credit 63,000 64,000 28,000 73,000 1,000 63,000 — Consumer 115,000 115,000 51,000 19,000 — 38,000 — $ 8,702,000 $ 8,879,000 $ 1,029,000 $ 8,446,000 $ 168,000 $ 8,408,000 $ 80,000 Total Commercial Real estate $ 10,685,000 $ 10,933,000 $ 369,000 $ 10,526,000 $ 216,000 $ 10,434,000 $ 101,000 Construction 834,000 834,000 97,000 917,000 19,000 828,000 10,000 Other 1,479,000 1,524,000 158,000 1,292,000 33,000 1,382,000 25,000 Municipal — — — — — — — Residential Term 14,105,000 15,351,000 326,000 14,483,000 275,000 14,256,000 141,000 Construction — — — — — — — Home equity line of credit 975,000 1,330,000 28,000 1,289,000 14,000 1,142,000 5,000 Consumer 115,000 115,000 51,000 19,000 — 38,000 — $ 28,193,000 $ 30,087,000 $ 1,029,000 $ 28,526,000 $ 557,000 $ 28,080,000 $ 282,000
Troubled Debt Restructurings on Financing Receivables	The following table shows TDRs by class and the specific reserve as of June 30, 2017 : Number of Loans Balance Specific Reserves Commercial Real estate 9 $ 8,040,000 $ 93,000 Construction 1 763,000 103,000 Other 5 749,000 1,000 Municipal — — — Residential Term 50 10,227,000 209,000 Construction — — — Home equity line of credit 3 522,000 — Consumer — — — 68 $ 20,301,000 $ 406,000 The following table shows TDRs by class and the specific reserve as of December 31, 2016 : Number of Loans Balance Specific Reserves Commercial Real estate 10 $ 8,937,000 $ 375,000 Construction 1 763,000 100,000 Other 5 779,000 — Municipal — — — Residential Term 52 10,503,000 261,000 Construction — — — Home equity line of credit 3 544,000 — Consumer — — — 71 $ 21,526,000 $ 736,000 The following table shows TDRs by class and the specific reserve as of June 30, 2016 : Number of Loans Balance Specific Reserves Commercial Real estate 11 $ 9,459,000 $ 105,000 Construction 1 788,000 97,000 Other 10 1,101,000 78,000 Municipal — — — Residential Term 53 10,693,000 264,000 Construction — — — Home equity line of credit 3 554,000 — Consumer — — — 78 $ 22,595,000 $ 544,000 The following table shows these TDRs by class and the associated specific reserves included in the allowance for loan losses as of June 30, 2017 : Number of Loans Balance Specific Reserves Commercial Real estate — $ — $ — Construction — — — Other — — — Municipal — — — Residential Term 9 1,169,000 10,000 Construction — — — Home equity line of credit 1 167,000 — Consumer — — — 10 $ 1,336,000 $ 10,000 The following table shows these TDRs by class and the associated specific reserves included in the allowance for loan losses as of June 30, 2016 : Number of Loans Balance Specific Reserves Commercial Real estate — $ — $ — Construction — — — Other 1 10,000 — Municipal — — — Residential Term 8 969,000 49,000 Construction — — — Home equity line of credit — — — Consumer — — — 9 $ 979,000 $ 49,000

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	6 Months Ended
	Jun. 30, 2017
Receivables [Abstract]
Allowance for Loan Losses by Class of Financing Receivable and Allowance	A breakdown of the allowance for loan losses as of June 30, 2017 , December 31, 2016 , and June 30, 2016 , by class of financing receivable and allowance element, is presented in the following tables: As of June 30, 2017 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 $ 221,000 $ 1,467,000 $ 2,308,000 $ — $ 3,996,000 Construction 103,000 161,000 253,000 — 517,000 Other 36,000 829,000 1,306,000 — 2,171,000 Municipal — — 19,000 — 19,000 Residential Term 209,000 249,000 541,000 — 999,000 Construction — 8,000 18,000 — 26,000 Home equity line of credit 25,000 300,000 359,000 — 684,000 Consumer — 245,000 284,000 — 529,000 Unallocated — — — 1,670,000 1,670,000 $ 594,000 $ 3,259,000 $ 5,088,000 $ 1,670,000 $ 10,611,000 As of December 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 $ 505,000 $ 1,471,000 $ 2,012,000 $ — $ 3,988,000 Construction 100,000 125,000 171,000 — 396,000 Other 39,000 735,000 1,006,000 — 1,780,000 Municipal — — 18,000 — 18,000 Residential Term 304,000 563,000 421,000 — 1,288,000 Construction — 25,000 19,000 — 44,000 Home equity line of credit 26,000 444,000 337,000 — 807,000 Consumer — 328,000 231,000 — 559,000 Unallocated — — — 1,258,000 1,258,000 $ 974,000 $ 3,691,000 $ 4,215,000 $ 1,258,000 $ 10,138,000 As of June 30, 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 $ 369,000 $ 1,296,000 $ 2,290,000 $ — $ 3,955,000 Construction 97,000 80,000 141,000 — 318,000 Other 158,000 585,000 1,035,000 — 1,778,000 Municipal — — 17,000 — 17,000 Residential Term 326,000 577,000 462,000 — 1,365,000 Construction — 19,000 15,000 — 34,000 Home equity line of credit 28,000 475,000 377,000 — 880,000 Consumer 51,000 341,000 243,000 — 635,000 Unallocated — — — 1,216,000 1,216,000 $ 1,029,000 $ 3,373,000 $ 4,580,000 $ 1,216,000 $ 10,198,000
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 June 30, 2017 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 2,000 $ — $ 1,004,000 $ — $ 1,006,000 2 Above Average 13,737,000 45,000 7,700,000 27,895,000 49,377,000 3 Satisfactory 84,550,000 2,827,000 52,024,000 800,000 140,201,000 4 Average 140,826,000 20,849,000 80,537,000 — 242,212,000 5 Watch 46,158,000 9,884,000 16,402,000 — 72,444,000 6 OAEM 3,283,000 — 3,920,000 — 7,203,000 7 Substandard 17,811,000 — 12,104,000 — 29,915,000 8 Doubtful 123,000 — — — 123,000 Total $ 306,490,000 $ 33,605,000 $ 173,691,000 $ 28,695,000 $ 542,481,000 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, 2016 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 2,000 $ — $ 850,000 $ — $ 852,000 2 Above Average 13,981,000 49,000 8,934,000 25,527,000 48,491,000 3 Satisfactory 81,286,000 1,345,000 48,212,000 1,529,000 132,372,000 4 Average 139,421,000 16,506,000 65,146,000 — 221,073,000 5 Watch 43,181,000 7,349,000 16,864,000 — 67,394,000 6 OAEM 4,569,000 — 1,587,000 — 6,156,000 7 Substandard 20,066,000 157,000 9,176,000 — 29,399,000 8 Doubtful — — — — — Total $ 302,506,000 $ 25,406,000 $ 150,769,000 $ 27,056,000 $ 505,737,000 The following table summarizes the risk ratings for the Company's commercial real estate, commercial construction, commercial other, and municipal loans as of June 30, 2016 : Commercial Real Estate Commercial Construction Commercial Other Municipal Loans All Risk- Rated Loans 1 Strong $ 3,000 $ — $ 897,000 $ — $ 900,000 2 Above Average 27,602,000 54,000 7,567,000 23,898,000 59,121,000 3 Satisfactory 71,595,000 995,000 25,038,000 1,633,000 99,261,000 4 Average 136,010,000 11,769,000 72,919,000 — 220,698,000 5 Watch 41,328,000 5,621,000 24,702,000 — 71,651,000 6 OAEM 9,443,000 — 2,587,000 — 12,030,000 7 Substandard 17,331,000 — 2,941,000 — 20,272,000 8 Doubtful — — — — — Total $ 303,312,000 $ 18,439,000 $ 136,651,000 $ 25,531,000 $ 483,933,000
Allowance for Loan Losses Transactions	The following table presents allowance for loan losses activity by class for the six months and quarter ended June 30, 2017 , and allowance for loan loss balances by class and related loan balances by class as of June 30, 2017 : Commercial Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction For the six months ended June 30, 2017 Beginning balance $ 3,988,000 $ 396,000 $ 1,780,000 $ 18,000 $ 1,288,000 $ 44,000 $ 807,000 $ 559,000 $ 1,258,000 $ 10,138,000 Charge offs 305,000 — 58,000 — 70,000 — 28,000 156,000 — 617,000 Recoveries — — 18,000 — 19,000 — 3,000 50,000 — 90,000 Provision (credit) 313,000 121,000 431,000 1,000 (238,000 ) (18,000 ) (98,000 ) 76,000 412,000 1,000,000 Ending balance $ 3,996,000 $ 517,000 $ 2,171,000 $ 19,000 $ 999,000 $ 26,000 $ 684,000 $ 529,000 $ 1,670,000 $ 10,611,000 For the three months ended June 30, 2017 Beginning balance $ 4,015,000 $ 441,000 $ 1,925,000 $ 18,000 $ 969,000 $ 24,000 $ 811,000 $ 573,000 $ 1,591,000 $ 10,367,000 Charge offs 141,000 — 58,000 — 17,000 — 21,000 53,000 — 290,000 Recoveries — — 7,000 — 5,000 — 3,000 19,000 — 34,000 Provision (credit) 122,000 76,000 297,000 1,000 42,000 2,000 (109,000 ) (10,000 ) 79,000 500,000 Ending balance $ 3,996,000 $ 517,000 $ 2,171,000 $ 19,000 $ 999,000 $ 26,000 $ 684,000 $ 529,000 $ 1,670,000 $ 10,611,000 Allowance for loan losses as of June 30, 2017 Ending balance specifically evaluated for impairment $ 221,000 $ 103,000 $ 36,000 $ — $ 209,000 $ — $ 25,000 $ — $ — $ 594,000 Ending balance collectively evaluated for impairment $ 3,775,000 $ 414,000 $ 2,135,000 $ 19,000 $ 790,000 $ 26,000 $ 659,000 $ 529,000 $ 1,670,000 $ 10,017,000 Related loan balances as of June 30, 2017 Ending balance $ 306,490,000 $ 33,605,000 $ 173,691,000 $ 28,695,000 $ 427,171,000 $ 15,056,000 $ 110,328,000 $ 25,629,000 $ — $ 1,120,665,000 Ending balance specifically evaluated for impairment $ 9,853,000 $ 763,000 $ 1,633,000 $ — $ 12,990,000 $ — $ 1,405,000 $ — $ — $ 26,644,000 Ending balance collectively evaluated for impairment $ 296,637,000 $ 32,842,000 $ 172,058,000 $ 28,695,000 $ 414,181,000 $ 15,056,000 $ 108,923,000 $ 25,629,000 $ — $ 1,094,021,000 The following table presents allowance for loan losses activity by class for the yearended December 31, 2016 and allowance for loan loss balances by class and related loan balances by class as of December 31, 2016 : Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction 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 294,000 75,000 376,000 — 379,000 — 147,000 450,000 — 1,721,000 Recoveries — 8,000 129,000 — 93,000 — 5,000 108,000 — 343,000 Provision (credit) 1,162,000 (117,000 ) 575,000 1,000 183,000 20,000 56,000 335,000 (615,000 ) 1,600,000 Ending balance $ 3,988,000 $ 396,000 $ 1,780,000 $ 18,000 $ 1,288,000 $ 44,000 $ 807,000 $ 559,000 $ 1,258,000 $ 10,138,000 Ending balance specifically evaluated for impairment $ 505,000 $ 100,000 $ 39,000 $ — $ 304,000 $ — $ 26,000 $ — $ — $ 974,000 Ending balance collectively evaluated for impairment $ 3,483,000 $ 296,000 $ 1,741,000 $ 18,000 $ 984,000 $ 44,000 $ 781,000 $ 559,000 $ 1,258,000 $ 9,164,000 Ending balance $ 302,506,000 $ 25,406,000 $ 150,769,000 $ 27,056,000 $ 411,469,000 $ 18,303,000 $ 110,907,000 $ 25,110,000 $ — $ 1,071,526,000 Ending balance specifically evaluated for impairment $ 10,021,000 $ 763,000 $ 1,743,000 $ — $ 13,669,000 $ — $ 1,387,000 $ — $ — $ 27,583,000 Ending balance collectively evaluated for impairment $ 292,485,000 $ 24,643,000 $ 149,026,000 $ 27,056,000 $ 397,800,000 $ 18,303,000 $ 109,520,000 $ 25,110,000 $ — $ 1,043,943,000 The following table presents allowance for loan losses activity by class for the six months and quarter ended June 30, 2016 , and allowance for loan loss balances by class and related loan balances by class as of June 30, 2016 : Commercial Municipal Residential Home Equity Line of Credit Consumer Unallocated Total Real Estate Construction Other Term Construction For the six months ended June 30, 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 33,000 58,000 30,000 — 266,000 — 122,000 157,000 — 666,000 Recoveries — — 56,000 — 74,000 — 2,000 66,000 — 198,000 Provision (credit) 868,000 (204,000 ) 300,000 — 166,000 10,000 107,000 160,000 (657,000 ) 750,000 Ending balance $ 3,955,000 $ 318,000 $ 1,778,000 $ 17,000 $ 1,365,000 $ 34,000 $ 880,000 $ 635,000 $ 1,216,000 $ 10,198,000 For the three months ended June 30, 2016 Beginning 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 Charge offs 33,000 — 30,000 — 246,000 — 73,000 94,000 — 476,000 Recoveries — — 36,000 — 9,000 — 1,000 34,000 — 80,000 Provision (credit) 464,000 (27,000 ) 96,000 — 128,000 1,000 47,000 41,000 (375,000 ) 375,000 Ending balance $ 3,955,000 $ 318,000 $ 1,778,000 $ 17,000 $ 1,365,000 $ 34,000 $ 880,000 $ 635,000 $ 1,216,000 $ 10,198,000 Allowance for loan losses as of June 30, 2016 Ending balance specifically evaluated for impairment $ 369,000 $ 97,000 $ 158,000 $ — $ 326,000 $ — $ 28,000 $ 51,000 $ — $ 1,029,000 Ending balance collectively evaluated for impairment $ 3,586,000 $ 221,000 $ 1,620,000 $ 17,000 $ 1,039,000 $ 34,000 $ 852,000 $ 584,000 $ 1,216,000 $ 9,169,000 Related loan balances as of June 30, 2016 Ending balance $ 303,312,000 $ 18,439,000 $ 136,651,000 $ 25,531,000 $ 403,461,000 $ 13,403,000 $ 112,536,000 $ 24,880,000 $ — $ 1,038,213,000 Ending balance specifically evaluated for impairment $ 10,685,000 $ 834,000 $ 1,479,000 $ — $ 14,105,000 $ — $ 975,000 $ 115,000 $ — $ 28,193,000 Ending balance collectively evaluated for impairment $ 292,627,000 $ 17,605,000 $ 135,172,000 $ 25,531,000 $ 389,356,000 $ 13,403,000 $ 111,561,000 $ 24,765,000 $ — $ 1,010,020,000

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Nonvested Restricted Stock Units Activity	As of June 30, 2017 , 127,560 shares of restricted stock had been granted under the 2010 Plan, of which 71,086 shares remain restricted as of June 30, 2017 as detailed in the following table: Year Granted Vesting Term (In Years) Shares Remaining Term (In Years) 2013 5.0 14,776 0.3 2014 5.0 10,422 1.3 2015 5.0 12,023 2.3 2016 5.0 15,015 3.3 2017 1.0 3,976 0.6 2017 3.0 4,902 2.6 2017 5.0 9,972 4.6 71,086 2.2

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2017
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 six months ended June 30, 2017 and 2016 : Income (Numerator) Shares (Denominator) Per-Share Amount For the six months ended June 30, 2017 Net income as reported $ 9,520,000 Basic EPS: Income available to common shareholders 9,520,000 10,740,355 $ 0.89 Effect of dilutive securities: restricted stock 72,348 Diluted EPS: Income available to common shareholders plus assumed conversions $ 9,520,000 10,812,703 $ 0.88 For the six months ended June 30, 2016 Net income as reported $ 9,127,000 Basic EPS: Income available to common shareholders 9,127,000 10,710,483 $ 0.85 Effect of dilutive securities: restricted stock and warrants 101,306 Diluted EPS: Income available to common shareholders plus assumed conversions $ 9,127,000 10,811,789 $ 0.84 The following table sets forth the computation of basic and diluted EPS for the quarters ended June 30, 2017 and 2016: Income (Numerator) Shares (Denominator) Per-Share Amount For the quarter ended June 30, 2017 Net income as reported $ 4,883,000 Basic EPS: Income available to common shareholders 4,883,000 10,746,363 $ 0.45 Effect of dilutive securities: restricted stock 71,086 Diluted EPS: Income available to common shareholders plus assumed conversions $ 4,883,000 10,817,449 $ 0.45 For the quarter ended June 30, 2016 Net income as reported $ 4,624,000 Basic EPS: Income available to common shareholders 4,624,000 10,712,418 $ 0.43 Effect of dilutive securities: restricted stock and warrants 106,289 Diluted EPS: Income available to common shareholders plus assumed conversions $ 4,624,000 10,818,707 $ 0.43
Number of Options and Warrants Outstanding and Amount Above or Below the Strike Price	The following table presents the number of warrants outstanding as of June 30, 2016 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 and six months ended June 30, 2016 Warrants issued to private parties 226,819 226,819 — Total 226,819 226,819 —

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2017
Retirement Benefits, Description [Abstract]
Accumulated post-retirement benefit obligation and funded status	The following table sets forth the accumulated postretirement benefit obligation and funded status: At or for the six months ended June 30, 2017 2016 Change in benefit obligation Benefit obligation at beginning of year $ 1,870,000 $ 1,967,000 Interest cost 38,000 42,000 Benefits paid (64,000 ) (60,000 ) Benefit obligation at end of period $ 1,844,000 $ 1,949,000 Funded status Benefit obligation at end of period $ (1,844,000 ) $ (1,949,000 ) Unamortized loss 102,000 240,000 Accrued benefit cost at end of period $ (1,742,000 ) $ (1,709,000 )
Schedule of net pension costs	The following table sets forth the net periodic pension cost: For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Components of net periodic benefit cost Interest cost $ 38,000 $ 42,000 19,000 21,000 Net periodic benefit cost $ 38,000 $ 42,000 $ 19,000 $ 21,000
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: June 30, December 31, 2016 June 30, Unamortized net actuarial loss $ (156,000 ) $ (156,000 ) $ (240,000 ) Deferred tax benefit at 35% 54,000 54,000 84,000 Net unrecognized postretirement benefits included in accumulated other comprehensive income (loss) $ (102,000 ) $ (102,000 ) $ (156,000 )

Other Comprehensive Income (L32

Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2017
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	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 six months and quarters ended June 30, 2017 and 2016 . For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Balance at beginning of period $ (129,000 ) $ (112,000 ) $ (133,000 ) $ (123,000 ) Amortization of net unrealized losses (12,000 ) (32,000 ) (6,000 ) (15,000 ) Related deferred taxes 4,000 11,000 2,000 5,000 Net change (8,000 ) (21,000 ) (4,000 ) (10,000 ) Balance at end of period $ (137,000 ) $ (133,000 ) $ (137,000 ) $ (133,000 ) The following table presents the effect of the Company's derivative financial instruments included in other comprehensive income (loss) for the six months and quarters ended June 30, 2017 and 2016 . For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Balance at beginning of period $ 1,163,000 $ — $ 1,226,000 $ — Unrealized losses on cash flow hedging derivatives arising during the period (167,000 ) (208,000 ) (263,000 ) (208,000 ) Related deferred taxes 59,000 73,000 92,000 73,000 Net change (108,000 ) (135,000 ) (171,000 ) (135,000 ) Balance at end of period $ 1,055,000 $ (135,000 ) $ 1,055,000 $ (135,000 ) The following table summarizes activity in the unrealized gain or loss on postretirement benefits included in other comprehensive income (loss) for the six months and quarters ended June 30, 2017 and 2016 . For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Unrecognized postretirement benefits at beginning of period $ (102,000 ) $ (156,000 ) $ (102,000 ) $ (156,000 ) Amortization of unrecognized transition obligation — — — — Change in unamortized net actuarial gain (loss) — — — — Related deferred taxes — — — — Unrecognized postretirement benefits at end of period $ (102,000 ) $ (156,000 ) $ (102,000 ) $ (156,000 ) The following table summarizes activity in the unrealized gain or loss on available for sale securities included in other comprehensive income (loss) for the six months and quarters ended June 30, 2017 and 2016 . For the six months ended June 30, For the quarter ended June 30, 2017 2016 2017 2016 Balance at beginning of period $ (935,000 ) $ 1,123,000 $ (934,000 ) $ 2,975,000 Unrealized gains arising during the period 541,000 4,957,000 536,000 1,570,000 Reclassification of realized (gains) losses during the period (3,000 ) (531,000 ) — 5,000 Related deferred taxes (188,000 ) (1,549,000 ) (187,000 ) (550,000 ) Net change 350,000 2,877,000 349,000 1,025,000 Balance at end of period $ (585,000 ) $ 4,000,000 $ (585,000 ) $ 4,000,000

Financial Derivative Instrume33

Financial Derivative Instruments (Tables)	6 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The details of the interest rate swap agreements are as follows: As of June 30, 2017 2017 2016 Notional Amount Effective Date Maturity Date Variable Index Received Fixed Rate Paid Fair Value (1) Fair Value (1) $ 30,000,000 June 28, 2016 June 28, 2021 1-Month USD LIBOR 0.940 % $ 952,000 $ (153,000 ) $ 20,000,000 June 27, 2016 June 27, 2021 1-Month USD LIBOR 0.893 % $ 671,000 (55,000 ) $ 50,000,000 $ 1,623,000 $ (208,000 ) (1) Presented within other assets (liabilities) in the consolidated balance sheet.

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	6 Months Ended
	Jun. 30, 2017
Transfers and Servicing [Abstract]
Reconciliation of Mortgage Servicing Assets	Mortgage servicing rights are included in other assets and detailed in the following table: June 30, December 31, June 30, Mortgage servicing rights $ 5,199,000 $ 5,901,000 $ 5,520,000 Accumulated amortization (4,072,000 ) (4,680,000 ) (4,433,000 ) Impairment reserve (18,000 ) (108,000 ) (139,000 ) $ 1,109,000 $ 1,113,000 $ 948,000

Certificates of Deposit (Tables

Certificates of Deposit (Tables)	6 Months Ended
	Jun. 30, 2017
Banking and Thrift [Abstract]
Certificates of Deposit	The following table represents the breakdown of certificates of deposit at June 30, 2017 and 2016 , and at December 31, 2016 : June 30, 2017 December 31, 2016 June 30, 2016 Certificates of deposit < $100,000 $ 270,875,000 $ 195,115,000 $ 237,382,000 Certificates $100,000 to $250,000 212,063,000 240,904,000 199,599,000 Certificates $250,000 and over 44,556,000 40,601,000 42,568,000 $ 527,494,000 $ 476,620,000 $ 479,549,000

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured on Recurring Basis Measured at Fair Value	The following tables present the balances of assets and that were measured at fair value on a recurring basis as of June 30, 2017 , December 31, 2016 and June 30, 2016 . At June 30, 2017 Level 1 Level 2 Level 3 Total Securities available for sale Mortgage-backed securities $ — $ 288,991,000 $ — $ 288,991,000 State and political subdivisions — 15,828,000 — 15,828,000 Other equity securities — 3,327,000 — 3,327,000 Total securities available for sale — 308,146,000 — 308,146,000 Interest rate swap agreements — 1,623,000 — 1,623,000 Total assets $ — $ 309,769,000 $ — $ 309,769,000 At December 31, 2016 Level 1 Level 2 Level 3 Total Securities available for sale Mortgage-backed securities $ — $ 280,604,000 $ — $ 280,604,000 State and political subdivisions — 16,482,000 — 16,482,000 Other equity securities — 3,330,000 — 3,330,000 Total securities available for sale $ — $ 300,416,000 $ — $ 300,416,000 Interest rate swap agreements $ — $ 1,790,000 $ — $ 1,790,000 Total assets $ — $ 302,206,000 $ — $ 302,206,000 At June 30, 2016 Level 1 Level 2 Level 3 Total Securities available for sale U.S. Treasury and agency $ — $ 522,000 $ — $ 522,000 Mortgage-backed securities — 219,353,000 — 219,353,000 State and political subdivisions — 18,415,000 — 18,415,000 Other equity securities — 3,037,000 — 3,037,000 Total assets $ — $ 241,327,000 $ — $ 241,327,000 At June 30, 2016 Level 1 Level 2 Level 3 Total Interest rate swap agreements $ — $ 208,000 $ — $ 208,000 Total liabilities $ — $ 208,000 $ — $ 208,000
Assets and Liabilities Measured on Nonrecurring 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 $39,000 , $205,000 and $115,000 at June 30, 2017 , December 31, 2016 , and June 30, 2016 , 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 $202,000 , $478,000 and $567,000 at June 30, 2017 , December 31, 2016 , and June 30, 2016 , respectively. At June 30, 2017 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 324,000 $ — $ 324,000 Impaired loans — 269,000 — 269,000 Total assets $ — $ 593,000 $ — $ 593,000 At December 31, 2016 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 375,000 $ — $ 375,000 Impaired loans — 827,000 — 827,000 Total assets $ — $ 1,202,000 $ — $ 1,202,000 At June 30, 2016 Level 1 Level 2 Level 3 Total Other real estate owned $ — $ 1,129,000 $ — $ 1,129,000 Impaired loans — 1,889,000 — 1,889,000 Total assets $ — $ 3,018,000 $ — $ 3,018,000
Estimated Fair Value of Financial Instruments	The carrying amount and estimated fair values for financial instruments as of June 30, 2017 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 20,189,000 $ 20,189,000 $ 20,189,000 $ — $ — Interest bearing deposits in other banks 3,820,000 3,820,000 3,820,000 — — Securities available for sale 308,146,000 308,146,000 — 308,146,000 — Securities to be held to maturity 244,123,000 246,238,000 — 246,238,000 — Restricted equity securities 12,311,000 12,311,000 — 12,311,000 — Loans held for sale 865,000 865,000 — 865,000 — Loans (net of allowance for loan losses) Commercial Real estate 301,722,000 295,339,000 — — 295,339,000 Construction 32,989,000 32,291,000 — — 32,291,000 Other 171,099,000 169,509,000 — 33,000 169,476,000 Municipal 28,672,000 28,902,000 — — 28,902,000 Residential Term 425,985,000 428,556,000 — 236,000 428,320,000 Construction 15,025,000 14,983,000 — — 14,983,000 Home equity line of credit 109,516,000 107,855,000 — — 107,855,000 Consumer 25,046,000 24,654,000 — — 24,654,000 Total loans 1,110,054,000 1,102,089,000 — 269,000 1,101,820,000 Mortgage servicing rights 1,109,000 1,888,000 — 1,888,000 — Interest rate swap agreements 1,623,000 1,623,000 — 1,623,000 — Accrued interest receivable 7,192,000 7,192,000 — 7,192,000 — Financial liabilities Demand deposits $ 180,298,000 $ 174,958,000 $ — $ 174,958,000 $ — NOW deposits 250,316,000 234,049,000 — 234,049,000 — Money market deposits 134,760,000 126,402,000 — 126,402,000 — Savings deposits 226,391,000 200,712,000 — 200,712,000 — Local certificates of deposit 217,495,000 217,021,000 — 217,021,000 — National certificates of deposit 309,999,000 309,853,000 — 309,853,000 — Total deposits 1,319,259,000 1,262,995,000 — 1,262,995,000 — Repurchase agreements 67,154,000 64,852,000 — 64,852,000 — Federal Home Loan Bank advances 215,123,000 214,893,000 — 214,893,000 — Total borrowed funds 282,277,000 279,745,000 — 279,745,000 — Accrued interest payable 603,000 603,000 — 603,000 — The carrying amounts and estimated fair values for financial instruments as of December 31, 2016 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 17,366,000 $ 17,366,000 $ 17,366,000 $ — $ — Interest bearing deposits in other banks 293,000 293,000 293,000 — — Securities available for sale 300,416,000 300,416,000 — 300,416,000 — Securities to be held to maturity 226,828,000 225,537,000 — 225,537,000 — Restricted equity securities 11,930,000 11,930,000 — 11,930,000 — Loans held for sale 782,000 782,000 — 782,000 — Loans (net of allowance for loan losses) Commercial Real estate 297,952,000 293,103,000 — 558,000 292,545,000 Construction 24,954,000 24,548,000 — — 24,548,000 Other 148,737,000 147,394,000 — 33,000 147,361,000 Municipal 27,035,000 27,446,000 — — 27,446,000 Residential Term 409,999,000 410,327,000 — 236,000 410,091,000 Construction 18,253,000 18,125,000 — — 18,125,000 Home equity line of credit 109,986,000 108,740,000 — — 108,740,000 Consumer 24,472,000 24,131,000 — — 24,131,000 Total loans 1,061,388,000 1,053,814,000 — 827,000 1,052,987,000 Mortgage servicing rights 1,113,000 1,696,000 — 1,696,000 — Interest rate swap agreements 1,790,000 1,790,000 — 1,790,000 — Accrued interest receivable 5,532,000 5,532,000 — 5,532,000 — Financial liabilities Demand deposits $ 140,482,000 $ 133,342,000 $ — $ 133,342,000 $ — NOW deposits 282,971,000 259,418,000 — 259,418,000 — Money market deposits 125,544,000 115,087,000 — 115,087,000 — Savings deposits 217,340,000 188,260,000 — 188,260,000 — Local certificates of deposit 210,316,000 209,370,000 — 209,370,000 — National certificates of deposit 266,304,000 266,372,000 — 266,372,000 — Total deposits 1,242,957,000 1,171,849,000 — 1,171,849,000 — Repurchase agreements 84,174,000 79,827,000 — 79,827,000 — Federal Home Loan Bank advances 194,727,000 193,733,000 — 193,733,000 — Total borrowed funds 278,901,000 273,560,000 — 273,560,000 — Accrued interest payable 479,000 479,000 — 479,000 — The carrying amount and estimated fair values for financial instruments as of June 30, 2016 were as follows: Carrying value Estimated fair value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 20,838,000 $ 20,838,000 $ 20,838,000 $ — $ — Interest bearing deposits in other banks 7,568,000 7,568,000 7,568,000 — — Securities available for sale 241,327,000 241,327,000 — 241,327,000 — Securities to be held to maturity 216,272,000 225,200,000 — 225,200,000 — Restricted equity securities 14,441,000 14,441,000 — 14,441,000 — Loans held for sale 1,553,000 1,553,000 — 1,553,000 — Loans (net of allowance for loan losses) Commercial Real estate 298,822,000 294,749,000 — 544,000 294,205,000 Construction 18,078,000 17,832,000 — — 17,832,000 Other 134,632,000 134,567,000 — 348,000 134,219,000 Municipal 25,512,000 26,833,000 — — 26,833,000 Residential Term 401,911,000 410,502,000 — 933,000 409,569,000 Construction 13,364,000 13,289,000 — — 13,289,000 Home equity line of credit 111,537,000 110,635,000 — — 110,635,000 Consumer 24,159,000 24,126,000 — 64,000 24,062,000 Total loans 1,028,015,000 1,032,533,000 — 1,889,000 1,030,644,000 Mortgage servicing rights 948,000 1,489,000 — 1,489,000 — Accrued interest receivable 6,372,000 6,372,000 — 6,372,000 — Financial liabilities Demand deposits $ 130,168,000 $ 134,043,000 $ — $ 134,043,000 $ — NOW deposits 254,136,000 253,251,000 — 253,251,000 — Money market deposits 73,030,000 68,204,000 — 68,204,000 — Savings deposits 208,826,000 196,812,000 — 196,812,000 — Local certificates of deposit 211,006,000 213,726,000 — 213,726,000 — National certificates of deposit 268,543,000 268,873,000 — 268,873,000 — Total deposits 1,145,709,000 1,134,909,000 — 1,134,909,000 — Repurchase agreements 82,965,000 81,775,000 — 81,775,000 — Federal Home Loan Bank advances 200,130,000 202,184,000 — 202,184,000 — Total borrowed funds 283,095,000 283,959,000 — 283,959,000 — Interest rate swap agreements 208,000 208,000 208,000 Accrued interest payable 499,000 499,000 — 499,000 —

Investment Securities - Amortiz

Investment Securities - Amortized Cost and Estimated Fair Value of Available for Sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 309,046	$ 301,854	$ 235,174
Unrealized Gains	1,932	1,872	6,422
Unrealized Losses	(2,832)	(3,310)	(269)
Fair Value (Estimated)	308,146	300,416	241,327
U.S. Government-sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost			522
Unrealized Gains			0
Unrealized Losses			0
Fair Value (Estimated)			522
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	290,379	282,397	214,303
Unrealized Gains	1,381	1,334	5,274
Unrealized Losses	(2,769)	(3,127)	(224)
Fair Value (Estimated)	288,991	280,604	219,353
State and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	15,401	16,183	17,315
Unrealized Gains	486	475	1,100
Unrealized Losses	(59)	(176)	0
Fair Value (Estimated)	15,828	16,482	18,415
Other equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,266	3,274	3,034
Unrealized Gains	65	63	48
Unrealized Losses	(4)	(7)	(45)
Fair Value (Estimated)	$ 3,327	$ 3,330	$ 3,037

Investment Securities - Amort38

Investment Securities - Amortized Cost and Estimated Fair Value of Held to Maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 244,123	$ 226,828	$ 216,272
Unrealized Gains	4,393	2,973	8,952
Unrealized Losses	(2,278)	(4,264)	(24)
Fair Value (Estimated)	246,238	225,537	225,200
U.S. Government-sponsored agencies
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	11,152	11,943	35,962
Unrealized Gains	0	35	31
Unrealized Losses	(181)	(233)	0
Fair Value (Estimated)	10,971	11,745	35,993
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	27,224	31,201	37,096
Unrealized Gains	820	967	1,651
Unrealized Losses	(41)	(147)	(24)
Fair Value (Estimated)	28,003	32,021	38,723
State and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	201,447	179,384	138,914
Unrealized Gains	3,573	1,971	7,270
Unrealized Losses	(2,056)	(3,884)	0
Fair Value (Estimated)	202,964	177,471	146,184
Corporate securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	4,300	4,300	4,300
Unrealized Gains	0	0	0
Unrealized Losses	0	0	0
Fair Value (Estimated)	$ 4,300	$ 4,300	$ 4,300

Investment Securities - Amort39

Investment Securities - Amortized Cost and Estimated Fair Value of Restricted Equity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Restricted Equity Securities [Line Items]
Amortized Cost	$ 12,311	$ 11,930	$ 14,441
Unrealized Gains	0	0	0
Unrealized Losses	0	0	0
Fair Value (Estimated)	12,311	11,930	14,441
Federal Home Loan Bank Stock
Restricted Equity Securities [Line Items]
Amortized Cost	11,274	10,893	13,404
Unrealized Gains	0	0	0
Unrealized Losses	0	0	0
Fair Value (Estimated)	11,274	10,893	13,404
Federal Reserve Bank Stock
Restricted Equity Securities [Line Items]
Amortized Cost	1,037	1,037	1,037
Unrealized Gains	0	0	0
Unrealized Losses	0	0	0
Fair Value (Estimated)	$ 1,037	$ 1,037	$ 1,037

Investment Securities - Contrac

Investment Securities - Contractual Maturities of Investment Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
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	$ 26	$ 253	$ 2,058
Due in 1 to 5 years, Securities available for sale, Amortized Cost	1,722	2,251	3,326
Due in 5 to 10 years, Securities available for sale, Amortized Cost	34,382	21,043	24,917
Due after 10 years, Securities available for sale, Amortized Cost	269,650	275,033	201,839
Equity securities, Amortized Cost	3,266	3,274	3,034
Amortized Cost	309,046	301,854	235,174
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)	26	253	2,072
Due in 1 to 5 years, Securities available for sale, Fair Value (Estimated)	1,758	2,298	3,432
Due in 5 to 10 years, Securities available for sale, Fair Value (Estimated)	35,099	21,505	25,839
Due after 10 years, Securities available for sale, Fair Value (Estimated)	267,936	273,030	206,947
Equity securities, Fair Value (Estimated)	3,327	3,330	3,037
Securities available for sale, Fair Value (Estimated)	308,146	300,416	241,327
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Due in 1 year or less, Securities to be held to maturity, Amortized Cost	707	906	1,847
Due in 1 to 5 years, Securities to be held to maturity, Amortized Cost	14,536	13,451	13,162
Due in 5 to 10 years, Securities to be held to maturity, Amortized Cost	41,373	41,588	42,679
Due after 10 years, Securities to be held to maturity, Amortized Cost	187,507	170,883	158,584
Securities to be held to maturity, Amortized Cost	244,123	226,828	216,272
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in 1 year or less, Securities to be held to maturity, Fair Value (Estimated)	710	913	1,857
Due in 1 to 5 years, Securities to be held to maturity, Fair Value (Estimated)	14,813	13,714	13,538
Due in 5 to 10 years, Securities to be held to maturity, Fair Value (Estimated)	42,251	42,448	44,693
Due after 10 years, Securities to be held to maturity, Fair Value (Estimated)	188,464	168,462	165,112
Securities to be held to maturity, Fair Value (Estimated)	$ 246,238	$ 225,537	$ 225,200

Investment Securities - Additio

Investment Securities - Additional Information (Details) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2017USD ($)securitystate	Jun. 30, 2016USD ($)security	Dec. 31, 2016USD ($)security	Sep. 30, 2014USD ($)
Investments, Debt and Equity Securities [Abstract]
Fair value of securities pledged as collateral	$ 188,448	$ 196,274	$ 222,328
Number of securities temporarily impaired (security) | security	235	25	299
Number of securities temporarily impaired for twelve months or more (security) | security	15	13	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
Unamortized balance of net unrealized losses	$ 137	$ 133	$ 129
Number of states in New England where FHLB serve (state) | state	6
Federal Home Loan Bank stock	$ 11,274	$ 13,404	$ 10,893

Investment Securities - Gains a

Investment Securities - Gains and Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales of securities	$ 0	$ 86	$ 3	$ 8,954
Gross realized gains	0	0	3	531
Gross realized losses	0	(5)	0	0
Net gain (loss)	0	(5)	3	531
Related income taxes	$ 0	$ (2)	$ 1	$ 186

Investment Securities - Tempora

Investment Securities - Temporarily Impaired Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Schedule of Available-for-sale Securities [Line Items]
Fair Value (Estimated) (Less than 12 months)	$ 234,959	$ 276,518	$ 21,984
Unrealized Losses (Less than 12 months)	(4,910)	(7,383)	(183)
Fair Value (Estimated) (12 months or more)	7,652	3,033	2,708
Unrealized Losses (12 months or more)	(200)	(191)	(110)
Fair Value (Estimated)	242,611	279,551	24,692
Unrealized Losses	(5,110)	(7,574)	(293)
U.S. Government-sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Fair Value (Estimated) (Less than 12 months)	7,972	6,642
Unrealized Losses (Less than 12 months)	(181)	(233)
Fair Value (Estimated) (12 months or more)	0	0
Unrealized Losses (12 months or more)	0	0
Fair Value (Estimated)	7,972	6,642
Unrealized Losses	(181)	(233)
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Fair Value (Estimated) (Less than 12 months)	170,966	197,528	21,849
Unrealized Losses (Less than 12 months)	(2,613)	(3,090)	(168)
Fair Value (Estimated) (12 months or more)	7,643	2,905	2,615
Unrealized Losses (12 months or more)	(197)	(184)	(80)
Fair Value (Estimated)	178,609	200,433	24,464
Unrealized Losses	(2,810)	(3,274)	(248)
State and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Fair Value (Estimated) (Less than 12 months)	55,952	72,348
Unrealized Losses (Less than 12 months)	(2,115)	(4,060)
Fair Value (Estimated) (12 months or more)	0	0
Unrealized Losses (12 months or more)	0	0
Fair Value (Estimated)	55,952	72,348
Unrealized Losses	(2,115)	(4,060)
Other equity securities
Schedule of Available-for-sale Securities [Line Items]
Fair Value (Estimated) (Less than 12 months)	69	0	135
Unrealized Losses (Less than 12 months)	(1)	0	(15)
Fair Value (Estimated) (12 months or more)	9	128	93
Unrealized Losses (12 months or more)	(3)	(7)	(30)
Fair Value (Estimated)	78	128	228
Unrealized Losses	$ (4)	$ (7)	$ (45)

Loans - Loan Portfolio (Details

Loans - Loan Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Schedule of Financing Receivables [Line Items]
Loans	$ 1,120,665	$ 1,071,526	$ 1,038,213
Percentage of loans receivable, by type	100.00%	100.00%	100.00%
Commercial | Real estate
Schedule of Financing Receivables [Line Items]
Loans	$ 306,490	$ 302,506	$ 303,312
Percentage of loans receivable, by type	27.40%	28.20%	29.20%
Commercial | Construction
Schedule of Financing Receivables [Line Items]
Loans	$ 33,605	$ 25,406	$ 18,439
Percentage of loans receivable, by type	3.00%	2.40%	1.80%
Commercial | Other
Schedule of Financing Receivables [Line Items]
Loans	$ 173,691	$ 150,769	$ 136,651
Percentage of loans receivable, by type	15.50%	14.10%	13.20%
Municipal
Schedule of Financing Receivables [Line Items]
Loans	$ 28,695	$ 27,056	$ 25,531
Percentage of loans receivable, by type	2.60%	2.50%	2.50%
Residential | Construction
Schedule of Financing Receivables [Line Items]
Loans	$ 15,056	$ 18,303	$ 13,403
Percentage of loans receivable, by type	1.30%	1.70%	1.30%
Residential | Term
Schedule of Financing Receivables [Line Items]
Loans	$ 427,171	$ 411,469	$ 403,461
Percentage of loans receivable, by type	38.10%	38.40%	38.80%
Home equity line of credit
Schedule of Financing Receivables [Line Items]
Loans	$ 110,328	$ 110,907	$ 112,536
Percentage of loans receivable, by type	9.80%	10.40%	10.80%
Consumer
Schedule of Financing Receivables [Line Items]
Loans	$ 25,629	$ 25,110	$ 24,880
Percentage of loans receivable, by type	2.30%	2.30%	2.40%

Loans - Narrative (Details)

Loans - Narrative (Details) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2017USD ($)loan	Jun. 30, 2016USD ($)loan	Dec. 31, 2016USD ($)loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Number Of Contracts Greater Than30 Days Past Due | loan	10	9
Net deferred loan costs	$ 5,469	$ 4,478	$ 4,921
Qualifying first mortgage loans	313,709	270,293	257,122
Loans pledged as collateral	$ 294,315	$ 263,707	$ 261,463
Loans classified as TDR (loan) | loan	68	78	71
Value of loans classified as TDR	$ 20,301	$ 22,595	$ 21,526
Number of TDR loans more than 30 days past due (loan) | loan	10	1
Value of TDR loans more than 30 days past due	$ 1,336	$ 979
Number of loans placed on TDR status (loan) | loan	0	0
Number of TDR loans involved in bankruptcy (loan) | loan	4
Value of TDR loans involved in bankruptcy	$ 830
Number of TDR loans on non-accrual status (loan) | loan	8
Value of TDR loans on non-accrual status	$ 1,090
Number of TDR loans in the process of foreclosure (loan) | loan	1
Loans classified as TDRs in process of foreclosure	$ 108
Number of mortgage loans in the process of foreclosure (loan) | loan	12	13
Value of mortgage loans in the process of foreclosure	$ 1,919	$ 1,514
Unallocated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of days past due	30 days	30 days

Loans - Past-due Status of Loan

Loans - Past-due Status of Loans by Class (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Schedule of Financing Receivables [Line Items]
All Past Due	$ 9,786	$ 12,658	$ 10,793
Current	1,110,879	1,058,868	1,027,420
Total	1,120,665	1,071,526	1,038,213
90 Days or More & Accruing	29	777	321
30-59 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	1,471	2,711	2,172
60-89 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	4,126	4,227	5,514
90 Days or More Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	4,189	5,720	3,107
Commercial | Real estate
Schedule of Financing Receivables [Line Items]
All Past Due	1,475	3,476	1,626
Current	305,015	299,030	301,686
Total	306,490	302,506	303,312
90 Days or More & Accruing	0	753	0
Commercial | Real estate | 30-59 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	88	1,039	332
Commercial | Real estate | 60-89 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	0	22	998
Commercial | Real estate | 90 Days or More Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	1,387	2,415	296
Commercial | Construction
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	46
Current	33,605	25,406	18,393
Total	33,605	25,406	18,439
90 Days or More & Accruing	0	0	0
Commercial | Construction | 30-59 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
Commercial | Construction | 60-89 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	29
Commercial | Construction | 90 Days or More Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	17
Commercial | Other
Schedule of Financing Receivables [Line Items]
All Past Due	803	1,031	663
Current	172,888	149,738	135,988
Total	173,691	150,769	136,651
90 Days or More & Accruing	0	20	0
Commercial | Other | 30-59 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	29	202	131
Commercial | Other | 60-89 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	259	33	218
Commercial | Other | 90 Days or More Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	515	796	314
Municipal
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
Current	28,695	27,056	25,531
Total	28,695	27,056	25,531
90 Days or More & Accruing	0	0	0
Municipal | 30-59 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
Municipal | 60-89 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
Municipal | 90 Days or More Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
Residential | Construction
Schedule of Financing Receivables [Line Items]
All Past Due	99	0	0
Current	14,957	18,303	13,403
Total	15,056	18,303	13,403
90 Days or More & Accruing	0	0	0
Residential | Construction | 30-59 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	99	0	0
Residential | Construction | 60-89 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
Residential | Construction | 90 Days or More Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	0	0	0
Residential | Term
Schedule of Financing Receivables [Line Items]
All Past Due	5,383	6,403	7,007
Current	421,788	405,066	396,454
Total	427,171	411,469	403,461
90 Days or More & Accruing	0	0	245
Residential | Term | 30-59 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	533	631	662
Residential | Term | 60-89 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	3,343	3,970	4,235
Residential | Term | 90 Days or More Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	1,507	1,802	2,110
Home equity line of credit
Schedule of Financing Receivables [Line Items]
All Past Due	1,597	1,564	1,153
Current	108,731	109,343	111,383
Total	110,328	110,907	112,536
90 Days or More & Accruing	0	0	68
Home equity line of credit | 30-59 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	440	704	764
Home equity line of credit | 60-89 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	406	157	27
Home equity line of credit | 90 Days or More Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	751	703	362
Consumer
Schedule of Financing Receivables [Line Items]
All Past Due	429	184	298
Current	25,200	24,926	24,582
Total	25,629	25,110	24,880
90 Days or More & Accruing	29	4	8
Consumer | 30-59 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	282	135	283
Consumer | 60-89 Days Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	118	45	7
Consumer | 90 Days or More Past Due
Schedule of Financing Receivables [Line Items]
All Past Due	$ 29	$ 4	$ 8

Loans - Nonaccrual Loans (Detai

Loans - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	$ 7,434	$ 7,774	$ 6,478
Commercial | Real estate
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	1,814	1,907	1,227
Commercial | Construction
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	0	0	46
Commercial | Other
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	885	964	378
Municipal
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	0	0	0
Residential | Construction
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	0	0	0
Residential | Term
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	3,852	4,060	4,291
Home equity line of credit
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	883	843	421
Consumer
Schedule of Financing Receivables [Line Items]
Nonaccrual loans	$ 0	$ 0	$ 115

Loans - Impaired Loans by Class

Loans - Impaired Loans by Class (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Impaired Financing Receivable, Recorded Investment [Abstract]
Recorded investment, with no related allowance	$ 19,536	$ 19,491	$ 19,536	$ 19,491	$ 19,716
Recorded investment, with related allowance	7,108	8,702	7,108	8,702	7,867
Recorded Investment	26,644	28,193	26,644	28,193	27,583
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Unpaid principal balance, with no related allowance	21,503	21,208	21,503	21,208	21,853
Unpaid principal balance with related allowance	7,481	8,879	7,481	8,879	8,116
Unpaid Principal Balance	28,984	30,087	28,984	30,087	29,969
Related Allowance	594	1,029	594	1,029	974
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment, with no related allowance	19,512	19,672	19,666	20,080	19,605
Average recorded investment, with related allowance	7,431	8,408	7,581	8,446	8,612
Average Recorded Investment	26,943	28,080	27,247	28,526	28,217
Impaired Financing Receivable, Interest Income, Cash Basis Method [Abstract]
Recognized interest income, with no related allowance	138	202	288	389	781
Recognized interest income, with related allowance	77	80	150	168	323
Recognized Interest Income	215	282	438	557	1,104
Commercial | Real estate
Impaired Financing Receivable, Recorded Investment [Abstract]
Recorded investment, with no related allowance	5,686	6,654	5,686	6,654	5,201
Recorded investment, with related allowance	4,167	4,031	4,167	4,031	4,820
Recorded Investment	9,853	10,685	9,853	10,685	10,021
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Unpaid principal balance, with no related allowance	6,171	6,817	6,171	6,817	5,614
Unpaid principal balance with related allowance	4,356	4,116	4,356	4,116	4,925
Unpaid Principal Balance	10,527	10,933	10,527	10,933	10,539
Related Allowance	221	369	221	369	505
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment, with no related allowance	5,414	6,916	5,429	7,068	6,252
Average recorded investment, with related allowance	4,549	3,518	4,644	3,458	4,153
Average Recorded Investment	9,963	10,434	10,073	10,526	10,405
Impaired Financing Receivable, Interest Income, Cash Basis Method [Abstract]
Recognized interest income, with no related allowance	46	66	94	145	220
Recognized interest income, with related allowance	43	35	85	71	186
Recognized Interest Income	89	101	179	216	406
Commercial | Construction
Impaired Financing Receivable, Recorded Investment [Abstract]
Recorded investment, with no related allowance	0	46	0	46	0
Recorded investment, with related allowance	763	788	763	788	763
Recorded Investment	763	834	763	834	763
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Unpaid principal balance, with no related allowance	0	46	0	46	0
Unpaid principal balance with related allowance	763	788	763	788	763
Unpaid Principal Balance	763	834	763	834	763
Related Allowance	103	97	103	97	100
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment, with no related allowance	0	40	0	60	32
Average recorded investment, with related allowance	763	788	763	857	816
Average Recorded Investment	763	828	763	917	848
Impaired Financing Receivable, Interest Income, Cash Basis Method [Abstract]
Recognized interest income, with no related allowance	0	0	0	1	0
Recognized interest income, with related allowance	9	10	18	18	36
Recognized Interest Income	9	10	18	19	36
Commercial | Other
Impaired Financing Receivable, Recorded Investment [Abstract]
Recorded investment, with no related allowance	1,405	955	1,405	955	1,671
Recorded investment, with related allowance	228	524	228	524	72
Recorded Investment	1,633	1,479	1,633	1,479	1,743
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Unpaid principal balance, with no related allowance	1,449	994	1,449	994	1,852
Unpaid principal balance with related allowance	268	530	268	530	72
Unpaid Principal Balance	1,717	1,524	1,717	1,524	1,924
Related Allowance	36	158	36	158	39
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment, with no related allowance	1,418	1,045	1,507	1,083	1,074
Average recorded investment, with related allowance	230	337	177	209	317
Average Recorded Investment	1,648	1,382	1,684	1,292	1,391
Impaired Financing Receivable, Interest Income, Cash Basis Method [Abstract]
Recognized interest income, with no related allowance	12	13	19	21	86
Recognized interest income, with related allowance	4	12	6	12	0
Recognized Interest Income	16	25	25	33	86
Municipal
Impaired Financing Receivable, Recorded Investment [Abstract]
Recorded investment, with no related allowance	0	0	0	0	0
Recorded investment, with related allowance	0	0	0	0	0
Recorded Investment	0	0	0	0	0
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Unpaid principal balance, with no related allowance	0	0	0	0	0
Unpaid principal balance with related allowance	0	0	0	0	0
Unpaid Principal Balance	0	0	0	0	0
Related Allowance	0	0	0	0	0
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment, with no related allowance	0	0	0	0	0
Average recorded investment, with related allowance	0	0	0	0	0
Average Recorded Investment	0	0	0	0	0
Impaired Financing Receivable, Interest Income, Cash Basis Method [Abstract]
Recognized interest income, with no related allowance	0	0	0	0	0
Recognized interest income, with related allowance	0	0	0	0	0
Recognized Interest Income	0	0	0	0	0
Residential | Construction
Impaired Financing Receivable, Recorded Investment [Abstract]
Recorded investment, with no related allowance	0	0	0	0	0
Recorded investment, with related allowance	0	0	0	0	0
Recorded Investment	0	0	0	0	0
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Unpaid principal balance, with no related allowance	0	0	0	0	0
Unpaid principal balance with related allowance	0	0	0	0	0
Unpaid Principal Balance	0	0	0	0	0
Related Allowance	0	0	0	0	0
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment, with no related allowance	0	0	0	0	0
Average recorded investment, with related allowance	0	0	0	0	0
Average Recorded Investment	0	0	0	0	0
Impaired Financing Receivable, Interest Income, Cash Basis Method [Abstract]
Recognized interest income, with no related allowance	0	0	0	0	0
Recognized interest income, with related allowance	0	0	0	0	0
Recognized Interest Income	0	0	0	0	0
Residential | Term
Impaired Financing Receivable, Recorded Investment [Abstract]
Recorded investment, with no related allowance	11,065	10,924	11,065	10,924	11,483
Recorded investment, with related allowance	1,925	3,181	1,925	3,181	2,186
Recorded Investment	12,990	14,105	12,990	14,105	13,669
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Unpaid principal balance, with no related allowance	12,152	12,085	12,152	12,085	12,654
Unpaid principal balance with related allowance	2,067	3,266	2,067	3,266	2,328
Unpaid Principal Balance	14,219	15,351	14,219	15,351	14,982
Related Allowance	209	326	209	326	304
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment, with no related allowance	11,283	10,592	11,343	10,653	11,025
Average recorded investment, with related allowance	1,864	3,664	1,971	3,830	3,209
Average Recorded Investment	13,147	14,256	13,314	14,483	14,234
Impaired Financing Receivable, Interest Income, Cash Basis Method [Abstract]
Recognized interest income, with no related allowance	73	118	161	209	442
Recognized interest income, with related allowance	21	23	41	66	101
Recognized Interest Income	94	141	202	275	543
Home equity line of credit
Impaired Financing Receivable, Recorded Investment [Abstract]
Recorded investment, with no related allowance	1,380	912	1,380	912	1,361
Recorded investment, with related allowance	25	63	25	63	26
Recorded Investment	1,405	975	1,405	975	1,387
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Unpaid principal balance, with no related allowance	1,731	1,266	1,731	1,266	1,733
Unpaid principal balance with related allowance	27	64	27	64	28
Unpaid Principal Balance	1,758	1,330	1,758	1,330	1,761
Related Allowance	25	28	25	28	26
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment, with no related allowance	1,397	1,079	1,387	1,216	1,213
Average recorded investment, with related allowance	25	63	26	73	69
Average Recorded Investment	1,422	1,142	1,413	1,289	1,282
Impaired Financing Receivable, Interest Income, Cash Basis Method [Abstract]
Recognized interest income, with no related allowance	7	5	14	13	33
Recognized interest income, with related allowance	0	0	0	1	0
Recognized Interest Income	7	5	14	14	33
Consumer
Impaired Financing Receivable, Recorded Investment [Abstract]
Recorded investment, with no related allowance	0	0	0	0	0
Recorded investment, with related allowance	0	115	0	115	0
Recorded Investment	0	115	0	115	0
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Unpaid principal balance, with no related allowance	0	0	0	0	0
Unpaid principal balance with related allowance	0	115	0	115	0
Unpaid Principal Balance	0	115	0	115	0
Related Allowance	0	51	0	51	0
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average recorded investment, with no related allowance	0	0	0	0	9
Average recorded investment, with related allowance	0	38	0	19	48
Average Recorded Investment	0	38	0	19	57
Impaired Financing Receivable, Interest Income, Cash Basis Method [Abstract]
Recognized interest income, with no related allowance	0	0	0	0	0
Recognized interest income, with related allowance	0	0	0	0	0
Recognized Interest Income	$ 0	$ 0	$ 0	$ 0	$ 0

Loans - TDR's by Class and Spec

Loans - TDR's by Class and Specific Reserves (Details) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2017USD ($)loan	Jun. 30, 2016USD ($)loan	Dec. 31, 2016USD ($)loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Number Of Contracts Greater Than30 Days Past Due Place In T D R In Previous12 Months | loan	10	1
Financing Receivable Recorded Investment Greater Than30 Days Past Due Placed In T D R In Previous12 Months	$ 1,336	$ 108
Number of Loans (loan) | loan	68	78	71
Balance	$ 20,301	$ 22,595	$ 21,526
Specific Reserves	$ 406	$ 544	$ 736
Commercial | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Number Of Contracts Greater Than30 Days Past Due Place In T D R In Previous12 Months | loan	0	0
Financing Receivable Recorded Investment Greater Than30 Days Past Due Placed In T D R In Previous12 Months	$ 0	$ 0
Number of Loans (loan) | loan	9	11	10
Balance	$ 8,040	$ 9,459	$ 8,937
Specific Reserves	$ 93	$ 105	$ 375
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Number Of Contracts Greater Than30 Days Past Due Place In T D R In Previous12 Months | loan	0	0
Financing Receivable Recorded Investment Greater Than30 Days Past Due Placed In T D R In Previous12 Months	$ 0	$ 0
Number of Loans (loan) | loan	1	1	1
Balance	$ 763	$ 788	$ 763
Specific Reserves	$ 103	$ 97	$ 100
Commercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Number Of Contracts Greater Than30 Days Past Due Place In T D R In Previous12 Months | loan	0	1
Financing Receivable Recorded Investment Greater Than30 Days Past Due Placed In T D R In Previous12 Months	$ 0	$ 10
Number of Loans (loan) | loan	5	10	5
Balance	$ 749	$ 1,101	$ 779
Specific Reserves	$ 1	$ 78	$ 0
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Number Of Contracts Greater Than30 Days Past Due Place In T D R In Previous12 Months | loan	0	0
Financing Receivable Recorded Investment Greater Than30 Days Past Due Placed In T D R In Previous12 Months	$ 0	$ 0
Number of Loans (loan) | loan	0	0	0
Balance	$ 0	$ 0	$ 0
Specific Reserves	$ 0	$ 0	$ 0
Residential | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Number Of Contracts Greater Than30 Days Past Due Place In T D R In Previous12 Months | loan	0	0
Financing Receivable Recorded Investment Greater Than30 Days Past Due Placed In T D R In Previous12 Months	$ 0	$ 0
Number of Loans (loan) | loan	0	0	0
Balance	$ 0	$ 0	$ 0
Specific Reserves	$ 0	$ 0	$ 0
Residential | Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Number Of Contracts Greater Than30 Days Past Due Place In T D R In Previous12 Months | loan	9	8
Financing Receivable Recorded Investment Greater Than30 Days Past Due Placed In T D R In Previous12 Months	$ 1,169	$ 969
Number of Loans (loan) | loan	50	53	52
Balance	$ 10,227	$ 10,693	$ 10,503
Specific Reserves	$ 209	$ 264	$ 261
Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Number Of Contracts Greater Than30 Days Past Due Place In T D R In Previous12 Months | loan	1	0
Financing Receivable Recorded Investment Greater Than30 Days Past Due Placed In T D R In Previous12 Months	$ 167	$ 0
Number of Loans (loan) | loan	3	3	3
Balance	$ 522	$ 554	$ 544
Specific Reserves	$ 0	$ 0	$ 0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Number Of Contracts Greater Than30 Days Past Due Place In T D R In Previous12 Months | loan	0	0
Financing Receivable Recorded Investment Greater Than30 Days Past Due Placed In T D R In Previous12 Months	$ 0	$ 0
Number of Loans (loan) | 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	Jun. 30, 2017USD ($)loan	Jun. 30, 2016USD ($)loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due (loan) | loan	10	1
Value of TDR loans more than 30 days past due	$ 1,336	$ 108
Specific reserve of TDR loans more than 30 days past due	$ 10	$ 49
Financing Receivable Modifications Number Of Contracts Greater Than30 Days Past Due | loan	10	9
Financing Receivable Recorded Investment Greater Than30 Days Past Due	$ 1,336	$ 979
Commercial | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due (loan) | 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 | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due (loan) | 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) | loan	0	1
Value of TDR loans more than 30 days past due	$ 0	$ 10
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) | 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 | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due (loan) | 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) | loan	9	8
Value of TDR loans more than 30 days past due	$ 1,169	$ 969
Specific reserve of TDR loans more than 30 days past due	$ 10	$ 49
Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due (loan) | loan	1	0
Value of TDR loans more than 30 days past due	$ 167	$ 0
Specific reserve of TDR loans more than 30 days past due	$ 0	$ 0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans more than 30 days past due (loan) | 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 - Nar

Allowance for Loan Losses - Narrative (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017USD ($)loan_class	Dec. 31, 2016USD ($)	Mar. 31, 2017USD ($)	Jun. 30, 2016USD ($)	Mar. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of classes in the loan portfolio (loan class) | loan_class	8
Allowance for loan and lease losses (percent)	0.45%	0.39%
Allowance for loan and lease losses, period increase (decrease)	$ 873
Allowance for loan losses	$ 10,611	$ 10,138	$ 10,367	$ 10,198	$ 10,219	$ 9,916
Allowance for loan losses as a percent of total loans	0.95%	0.95%		0.98%
Number of classes in the commercial loan portfolio (loan class) | loan_class	3
Residential loans typical loan to value range, maximum (percent)	80.00%
Construction loans accrual to company capital	31.10%
Constructions loan portfolio maximum to company capital	100.00%
Construction and non owner occupied commercial real estate	113.10%
Maximum loan portfolio to company capital	300.00%
Outstanding loans and commitments subject by independent consulting firm	50.00%
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 529	$ 559	$ 573	$ 635	$ 654	$ 566
Delinquent period before consumer loans charged off (days)	120 days
Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Delinquent period before residential loans placed on non accrual status (days)	90 days
Delinquent period for loans charged off (days)	180 days
Delinquency period for loans charged off after receipt of notification from bankruptcy court (days)	60 days
Unallocated Reserves
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 1,670	$ 1,258		$ 1,216
Total reserve allowance accounted for by loan loss allowances (percent)	15.70%	12.40%

Allowance for Loan Losses - Fin

Allowance for Loan Losses - Financing Receivable and Allowance Element by Class (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 10,611	$ 10,367	$ 10,138	$ 10,198	$ 10,219	$ 9,916
Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	594		974	1,029
General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	3,259		3,691	3,373
Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	5,088		4,215	4,580
Unallocated Reserves
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,670		1,258	1,216
Commercial | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	3,996	4,015	3,988	3,955	3,524	3,120
Commercial | Real estate | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	221		505	369
Commercial | Real estate | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,467		1,471	1,296
Commercial | Real estate | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	2,308		2,012	2,290
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	517	441	396	318	345	580
Commercial | Construction | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	103		100	97
Commercial | Construction | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	161		125	80
Commercial | Construction | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	253		171	141
Commercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	2,171	1,925	1,780	1,778	1,676	1,452
Commercial | Other | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	36		39	158
Commercial | Other | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	829		735	585
Commercial | Other | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,306		1,006	1,035
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	19	18	18	17	17	17
Municipal | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0		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	0
Municipal | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	19		18	17
Residential | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	26	24	44	34	33	24
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	8		25	19
Residential | Construction | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	18		19	15
Residential | Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	999	969	1,288	1,365	1,474	1,391
Residential | Term | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	209		304	326
Residential | Term | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	249		563	577
Residential | Term | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	541		421	462
Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	684	811	807	880	905	893
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	25		26	28
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	300		444	475
Home equity line of credit | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	359		337	377
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	529	573	559	635	654	566
Consumer | Specific Reserves on Loans Evaluated Individually for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0		0	51
Consumer | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	245		328	341
Consumer | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	284		231	243
Unallocated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,670	$ 1,591	1,258	1,216	$ 1,591	$ 1,873
Unallocated | Unallocated Reserves
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 1,670		$ 1,258	$ 1,216

Allowance for Loan Losses - Ris

Allowance for Loan Losses - Risk Ratings by Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	$ 542,481	$ 505,737	$ 483,933
1 Strong
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	1,006	852	900
2 Above Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	49,377	48,491	59,121
3 Satisfactory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	140,201	132,372	99,261
4 Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	242,212	221,073	220,698
5 Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	72,444	67,394	71,651
6 OAEM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	7,203	6,156	12,030
7 Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	29,915	29,399	20,272
8 Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	123	0	0
Commercial | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	306,490	302,506	303,312
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	33,605	25,406	18,439
Commercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	173,691	150,769	136,651
Commercial | 1 Strong | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	2	2	3
Commercial | 1 Strong | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
Commercial | 1 Strong | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	1,004	850	897
Commercial | 2 Above Average | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	13,737	13,981	27,602
Commercial | 2 Above Average | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	45	49	54
Commercial | 2 Above Average | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	7,700	8,934	7,567
Commercial | 3 Satisfactory | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	84,550	81,286	71,595
Commercial | 3 Satisfactory | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	2,827	1,345	995
Commercial | 3 Satisfactory | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	52,024	48,212	25,038
Commercial | 4 Average | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	140,826	139,421	136,010
Commercial | 4 Average | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	20,849	16,506	11,769
Commercial | 4 Average | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	80,537	65,146	72,919
Commercial | 5 Watch | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	46,158	43,181	41,328
Commercial | 5 Watch | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	9,884	7,349	5,621
Commercial | 5 Watch | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	16,402	16,864	24,702
Commercial | 6 OAEM | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	3,283	4,569	9,443
Commercial | 6 OAEM | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
Commercial | 6 OAEM | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	3,920	1,587	2,587
Commercial | 7 Substandard | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	17,811	20,066	17,331
Commercial | 7 Substandard | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	157	0
Commercial | 7 Substandard | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	12,104	9,176	2,941
Commercial | 8 Doubtful | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	123	0	0
Commercial | 8 Doubtful | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
Commercial | 8 Doubtful | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	28,695	27,056	25,531
Municipal | 1 Strong
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
Municipal | 2 Above Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	27,895	25,527	23,898
Municipal | 3 Satisfactory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	800	1,529	1,633
Municipal | 4 Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
Municipal | 5 Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
Municipal | 6 OAEM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
Municipal | 7 Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	0	0	0
Municipal | 8 Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial and municipal risk-rated loans receivable	$ 0	$ 0	$ 0

Allowance for Loan Losses - All

Allowance for Loan Losses - Allowance for Loan Loss Activity by Class (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 10,367	$ 10,219	$ 10,138	$ 9,916	$ 9,916
Charge offs	290	476	617	666	1,721
Recoveries	34	80	90	198	343
Provision for loan losses	500	375	1,000	750	1,600
Ending balance	10,611	10,198	10,611	10,198	10,138
Ending balance specifically evaluated for impairment	594	1,029	594	1,029	974
Ending balance collectively evaluated for impairment	10,017	9,169	10,017	9,169	9,164
Total	1,120,665	1,038,213	1,120,665	1,038,213	1,071,526
Ending balance specifically evaluated for impairment	26,644	28,193	26,644	28,193	27,583
Ending balance collectively evaluated for impairment	1,094,021	1,010,020	1,094,021	1,010,020	1,043,943
Commercial | Real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,015	3,524	3,988	3,120	3,120
Charge offs	141	33	305	33	294
Recoveries	0	0	0	0	0
Provision for loan losses	122	464	313	868	1,162
Ending balance	3,996	3,955	3,996	3,955	3,988
Ending balance specifically evaluated for impairment	221	369	221	369	505
Ending balance collectively evaluated for impairment	3,775	3,586	3,775	3,586	3,483
Total	306,490	303,312	306,490	303,312	302,506
Ending balance specifically evaluated for impairment	9,853	10,685	9,853	10,685	10,021
Ending balance collectively evaluated for impairment	296,637	292,627	296,637	292,627	292,485
Commercial | Construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	441	345	396	580	580
Charge offs	0	0	0	58	75
Recoveries	0	0	0	0	8
Provision for loan losses	76	(27)	121	(204)	(117)
Ending balance	517	318	517	318	396
Ending balance specifically evaluated for impairment	103	97	103	97	100
Ending balance collectively evaluated for impairment	414	221	414	221	296
Total	33,605	18,439	33,605	18,439	25,406
Ending balance specifically evaluated for impairment	763	834	763	834	763
Ending balance collectively evaluated for impairment	32,842	17,605	32,842	17,605	24,643
Commercial | Other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,925	1,676	1,780	1,452	1,452
Charge offs	58	30	58	30	376
Recoveries	7	36	18	56	129
Provision for loan losses	297	96	431	300	575
Ending balance	2,171	1,778	2,171	1,778	1,780
Ending balance specifically evaluated for impairment	36	158	36	158	39
Ending balance collectively evaluated for impairment	2,135	1,620	2,135	1,620	1,741
Total	173,691	136,651	173,691	136,651	150,769
Ending balance specifically evaluated for impairment	1,633	1,479	1,633	1,479	1,743
Ending balance collectively evaluated for impairment	172,058	135,172	172,058	135,172	149,026
Municipal
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	18	17	18	17	17
Charge offs	0	0	0	0	0
Recoveries	0	0	0	0	0
Provision for loan losses	1	0	1	0	1
Ending balance	19	17	19	17	18
Ending balance specifically evaluated for impairment	0	0	0	0	0
Ending balance collectively evaluated for impairment	19	17	19	17	18
Total	28,695	25,531	28,695	25,531	27,056
Ending balance specifically evaluated for impairment	0	0	0	0	0
Ending balance collectively evaluated for impairment	28,695	25,531	28,695	25,531	27,056
Residential | Construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	24	33	44	24	24
Charge offs	0	0	0	0	0
Recoveries	0	0	0	0	0
Provision for loan losses	2	1	(18)	10	20
Ending balance	26	34	26	34	44
Ending balance specifically evaluated for impairment	0	0	0	0	0
Ending balance collectively evaluated for impairment	26	34	26	34	44
Total	15,056	13,403	15,056	13,403	18,303
Ending balance specifically evaluated for impairment	0	0	0	0	0
Ending balance collectively evaluated for impairment	15,056	13,403	15,056	13,403	18,303
Residential | Term
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	969	1,474	1,288	1,391	1,391
Charge offs	17	246	70	266	379
Recoveries	5	9	19	74	93
Provision for loan losses	42	128	(238)	166	183
Ending balance	999	1,365	999	1,365	1,288
Ending balance specifically evaluated for impairment	209	326	209	326	304
Ending balance collectively evaluated for impairment	790	1,039	790	1,039	984
Total	427,171	403,461	427,171	403,461	411,469
Ending balance specifically evaluated for impairment	12,990	14,105	12,990	14,105	13,669
Ending balance collectively evaluated for impairment	414,181	389,356	414,181	389,356	397,800
Home equity line of credit
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	811	905	807	893	893
Charge offs	21	73	28	122	147
Recoveries	3	1	3	2	5
Provision for loan losses	(109)	47	(98)	107	56
Ending balance	684	880	684	880	807
Ending balance specifically evaluated for impairment	25	28	25	28	26
Ending balance collectively evaluated for impairment	659	852	659	852	781
Total	110,328	112,536	110,328	112,536	110,907
Ending balance specifically evaluated for impairment	1,405	975	1,405	975	1,387
Ending balance collectively evaluated for impairment	108,923	111,561	108,923	111,561	109,520
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	573	654	559	566	566
Charge offs	53	94	156	157	450
Recoveries	19	34	50	66	108
Provision for loan losses	(10)	41	76	160	335
Ending balance	529	635	529	635	559
Ending balance specifically evaluated for impairment	0	51	0	51	0
Ending balance collectively evaluated for impairment	529	584	529	584	559
Total	25,629	24,880	25,629	24,880	25,110
Ending balance specifically evaluated for impairment	0	115	0	115	0
Ending balance collectively evaluated for impairment	25,629	24,765	25,629	24,765	25,110
Unallocated
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,591	1,591	1,258	1,873	1,873
Charge offs	0	0	0	0	0
Recoveries	0	0	0	0	0
Provision for loan losses	79	(375)	412	(657)	(615)
Ending balance	1,670	1,216	1,670	1,216	1,258
Ending balance specifically evaluated for impairment	0	0	0	0	0
Ending balance collectively evaluated for impairment	1,670	1,216	1,670	1,216	1,258
Total	0	0	0	0	0
Ending balance specifically evaluated for impairment	0	0	0	0	0
Ending balance collectively evaluated for impairment	$ 0	$ 0	$ 0	$ 0	$ 0

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended		78 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share based compensation cost	$ 1,428		$ 1,428
Compensation expense recognized	166	$ 132
Share-based compensation expense not yet recognized	$ 828	$ 623	$ 828
Plan 2,010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capital shares reserved for future issuance (in shares)				400,000
Grants during the period (in shares)			127,560
Plan 2010 | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares	71,086		71,086

Stock-Based Compensation - Shar

Stock-Based Compensation - Shares of Restricted Stock Granted under 2010 Plan (Details) - Plan 2010 - Restricted Stock - shares	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares	71,086
Remaining Term (In Years)	2 years 2 months 12 days
Five Years
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
Remaining Term (In Years)	4 years 7 months 6 days	3 years 3 months 18 days	2 years 3 months 18 days	1 year 3 months 18 days	3 months 18 days
One Year
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)	1 year
Remaining Term (In Years)	7 months 6 days
Three Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)	3 years
Remaining Term (In Years)	2 years 7 months 6 days
2013 | Five Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares	14,776
2014 | Five Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares	10,422
2015 | Five Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares	12,023
2016 | Five Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares	15,015
2017 | Five Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares	9,972
2017 | One Year
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares	3,976
2017 | Three Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares	4,902

Preferred and Common Stock (Det

Preferred and Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	Jan. 09, 2009	Nov. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	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 (years)	10 years
Repurchase of warrants		$ 1,750
Proceeds from sale of common stock			$ 329	$ 258
Capital Purchase Program
Class of Stock [Line Items]
Proceeds from sale of common stock			$ 329	$ 258
Series A Preferred Stock
Class of Stock [Line Items]
Proceeds from issuance of CPP Shares	$ 25,000

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income (Numerator) [Abstract]
Net income as reported	$ 4,883	$ 4,624	$ 9,520	$ 9,127
Basic EPS: Income available to common shareholders	4,883	4,624	9,520	9,127
Diluted EPS: Income available to common shareholders plus assumed conversions	$ 4,883	$ 4,624	$ 9,520	$ 9,127
Shares (Denominator) [Abstract]
Basic EPS: Income available to common shareholders (in shares)	10,746,363	10,712,418	10,740,355	10,710,483
Effect of dilutive securities: restricted stock (in shares)	71,086	106,289	72,348	101,306
Diluted EPS: Income available to common shareholders plus assumed conversions (in shares)	10,817,449	10,818,707	10,812,703	10,811,789
Per-Share Amount [Abstract]
Basic EPS: Income available to common shareholders (in dollars per share)	$ 0.45	$ 0.43	$ 0.89	$ 0.85
Diluted EPS: Income available to common shareholders plus assumed conversions (in dollars per share)	$ 0.45	$ 0.43	$ 0.88	$ 0.84

Earnings Per Share - Schedule59

Earnings Per Share - Schedule of Options and Warrants Outstanding (Details)	Jun. 30, 2016shares
Schedule of Outstanding Options And Warrants [Line Items]
Warrants to private parties (in shares)	226,819
Total dilutive securities (in shares)	226,819
In-the-Money
Schedule of Outstanding Options And Warrants [Line Items]
Warrants to private parties (in shares)	226,819
Total dilutive securities (in shares)	226,819
Out-of-the-Money
Schedule of Outstanding Options And Warrants [Line Items]
Warrants to private parties (in shares)	0
Total dilutive securities (in shares)	0

Employee Benefit Plans - Narrat

Employee Benefit Plans - Narrative (Details)	6 Months Ended
	Jun. 30, 2017USD ($)post_retirement_benefit_planemployee	Jun. 30, 2016USD ($)	Dec. 31, 2016USD ($)
Retirement Benefits, Description [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	$ 243,000	$ 226,000
Unfunded, supplemental retirement benefits payable period (years)	20 years
Pension expense	$ 108,000	108,000
Accrued pension liability	$ 3,042,000	$ 3,083,000	$ 3,073,000
Number of post retirement benefit plans (post retirement benefit plan) | post_retirement_benefit_plan	2
Number of employees currently eligible (employee) | employee	7
Requisite age (in years)	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	$ 126,000
Estimated plan expense	77,000
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 - Accumu

Employee Benefit Plans - Accumulated Post-Retirement Benefit Obligation, Funded Status, and Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Change in benefit obligation
Benefit obligation at beginning of year			$ 1,870	$ 1,967
Interest cost	$ 19	$ 21	38	42
Benefits paid			(64)	(60)
Benefit obligation at end of period	1,844	1,949	1,844	1,949
Funded status
Benefit obligation at end of period	(1,844)	(1,949)	(1,870)	(1,967)	$ (1,844)	$ (1,949)
Unamortized loss					102	240
Accrued benefit cost at end of period					$ (1,742)	$ (1,709)
Components of net periodic benefit cost
Interest cost	19	21	38	42
Net periodic benefit cost	$ 19	$ 21	$ 38	$ 42

Employee Benefit Plans - Schedu

Employee Benefit Plans - Schedule of Net Periodic Benefit Cost Not Yet Recognized (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Retirement Benefits, Description [Abstract]
Unamortized net actuarial loss	$ (156)	$ (240)	$ (156)
Deferred tax benefit at 35%	54	84	54
Net unrecognized postretirement benefits included in accumulated other comprehensive income (loss)	$ (102)	$ (156)	$ (102)
Deferred tax benefit, percentage	35.00%	35.00%	35.00%

Other Comprehensive Income (L63

Other Comprehensive Income (Loss) - Summary of Available for Sale Securities Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			$ 172,521	$ 167,498
Other comprehensive income	$ 174	$ 880	234	2,721
Ending balance	177,537	174,788	177,537	174,788
Accumulated Net Investment Gain (Loss) Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(934)	2,975	(935)	1,123
Unrealized gains arising during the period	536	1,570	541	4,957
Reclassification of realized (gains) losses during the period	0	5	(3)	(531)
Related deferred taxes	(187)	(550)	(188)	(1,549)
Other comprehensive income	349	1,025	350	2,877
Ending balance	$ (585)	$ 4,000	$ (585)	$ 4,000

Other Comprehensive Income (L64

Other Comprehensive Income (Loss) - Reclassification of Available-for-Sale Securities to Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reclassification of Available-for-Sale Securities to Held-to-maturity Roll Forward [Roll Forward]
Beginning balance			$ 172,521	$ 167,498
Other comprehensive income	$ 174	$ 880	234	2,721
Ending balance	177,537	174,788	177,537	174,788
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]
Beginning balance	(133)	(123)	(129)	(112)
Amortization of net unrealized losses	(6)	(15)	(12)	(32)
Related deferred taxes	2	5	4	11
Other comprehensive income	(4)	(10)	(8)	(21)
Ending balance	$ (137)	$ (133)	$ (137)	$ (133)

Other Comprehensive Income (L65

Other Comprehensive Income (Loss) - Derivative Instruments Included in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			$ 172,521	$ 167,498
Other comprehensive income	$ 174	$ 880	234	2,721
Ending balance	177,537	174,788	177,537	174,788
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	1,226	0	1,163	0
Unrealized gains arising during the period	(263)	(208)	(167)	(208)
Related deferred taxes	92	73	59	73
Other comprehensive income	(171)	(135)	(108)	(135)
Ending balance	$ 1,055	$ (135)	$ 1,055	$ (135)

Other Comprehensive Income (L66

Other Comprehensive Income (Loss) - Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance			$ 172,521	$ 167,498
Ending balance	$ 177,537	$ 174,788	177,537	174,788
Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(102)	(156)	(102)	(156)
Amortization of unrecognized transition obligation	0	0	0	0
Change in unamortized net actuarial gain (loss)	0	0	0	0
Related deferred taxes	0	0	0	0
Ending balance	$ (102)	$ (156)	$ (102)	$ (156)

Financial Derivative Instrume67

Financial Derivative Instruments (Details) - Cash Flow Hedging - Designated as Hedging Instrument - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Interest Rate Swap June 28 2016
Derivative [Line Items]
Notional Amount	$ 30,000,000
Fixed Rate Paid	0.94%
Fair Value	$ 952,000	$ (153,000)
Interest Rate Swap June 27 2016
Derivative [Line Items]
Notional Amount	$ 20,000,000
Fixed Rate Paid	0.893%
Fair Value	$ 671,000	(55,000)
Interest Rate Swap
Derivative [Line Items]
Notional Amount	50,000,000
Fair Value	$ 1,623,000	$ (208,000)

Mortgage Servicing Rights - Nar

Mortgage Servicing Rights - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Transfers and Servicing [Abstract]
Moving average of weekly prepayment assumption (months)	3 months
Prepayment speed	12.04%
Average quarterly discount rate	10 years
Discount rate adjustment rate	5.00%
Servicing rights capitalized	$ 339	$ 173
Servicing rights amortized	274	212
Mortgage servicing rights	1,888	1,489	$ 1,696
Residential mortgage loans serviced for others, principal	$ 252,152	$ 229,924	$ 250,083

Mortgage Servicing Rights - Sch

Mortgage Servicing Rights - Schedule of Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Transfers and Servicing [Abstract]
Mortgage servicing rights	$ 5,199	$ 5,901	$ 5,520
Accumulated amortization	(4,072)	(4,680)	(4,433)
Impairment reserve	(18)	(108)	(139)
Total servicing asset at fair value	$ 1,109	$ 1,113	$ 948

Certificates of Deposit (Detail

Certificates of Deposit (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Banking and Thrift [Abstract]
Certificates of deposit of less than $100,000	$ 270,875	$ 195,115	$ 237,382
Certificates $100,000 to $250,000	212,063	240,904	199,599
Certificates $250,000 and over	44,556	40,601	42,568
Total certificates of deposit	$ 527,494	$ 476,620	$ 479,549

Fair Value - Assets and Liabili

Fair Value - Assets and Liabilities Recorded at Fair Value on a Recurring Basis (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 308,146,000	$ 300,416,000	$ 241,327,000
U.S. Government-sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale			522,000
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	288,991,000	280,604,000	219,353,000
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	15,828,000	16,482,000	18,415,000
Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	3,327,000	3,330,000	3,037,000
Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	308,146,000	300,416,000	241,327,000
Derivative asset	1,623,000	1,790,000
Interest rate swap agreements			208,000
Total Fair Value | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
Derivative asset	0	0
Total Fair Value | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	308,146,000	300,416,000	241,327,000
Derivative asset	1,623,000	1,790,000
Interest rate swap agreements			208,000
Total Fair Value | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
Derivative asset	0	0
Fair Value, Measurements, Recurring | U.S. Government-sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale			522,000
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
Total assets	0	0
Interest rate swap agreements			0
Fair Value, Measurements, Recurring | Level 1 | Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0	0
Interest rate swap agreements			0
Fair Value, Measurements, Recurring | Level 1 | U.S. Government-sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale			0
Fair Value, Measurements, Recurring | Level 1 | Mortgage-backed securities
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 | State and political subdivisions
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 | Other equity securities
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	308,146,000	300,416,000	241,327,000
Total assets	309,769,000	302,206,000
Interest rate swap agreements			208,000
Fair Value, Measurements, Recurring | Level 2 | Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	1,623,000	1,790,000
Interest rate swap agreements			208,000
Fair Value, Measurements, Recurring | Level 2 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	288,991,000	280,604,000	219,353,000
Fair Value, Measurements, Recurring | Level 2 | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	15,828,000	16,482,000	18,415,000
Fair Value, Measurements, Recurring | Level 2 | Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	3,327,000	3,330,000	3,037,000
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 assets	0	0
Interest rate swap agreements			0
Fair Value, Measurements, Recurring | Level 3 | Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0	0
Interest rate swap agreements			0
Fair Value, Measurements, Recurring | Level 3 | U.S. Government-sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale			0
Fair Value, Measurements, Recurring | Level 3 | Mortgage-backed securities
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 3 | State and political subdivisions
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 3 | Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0	0
Fair Value, Measurements, Recurring | Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	308,146,000	300,416,000	241,327,000
Total assets	309,769,000	302,206,000
Interest rate swap agreements			208,000
Fair Value, Measurements, Recurring | Total Fair Value | Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	1,623,000	1,790,000
Interest rate swap agreements			208,000
Fair Value, Measurements, Recurring | Total Fair Value | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	288,991,000	280,604,000	219,353,000
Fair Value, Measurements, Recurring | Total Fair Value | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	15,828,000	16,482,000	18,415,000
Fair Value, Measurements, Recurring | Total Fair Value | Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 3,327,000	$ 3,330,000	$ 3,037,000

Fair Value - Additional Informa

Fair Value - Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Valuation allowance on real estate owned	$ 39	$ 205	$ 115
Valuation allowance on impaired financing receivable	$ 202	$ 478	$ 567

Fair Value - Assets and Liabi73

Fair Value - Assets and Liabilities Recorded at Fair Value on a Non-Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	$ 324	$ 375	$ 1,129
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	324	375	1,129
Impaired loans	269	827	1,889
Total assets	593	1,202	3,018
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
Fair Value, Measurements, Nonrecurring | Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	324	375	1,129
Impaired loans	269	827	1,889
Total assets	$ 593	$ 1,202	$ 3,018

Fair Value - Assets and Liabi74

Fair Value - Assets and Liabilities at Fair Value (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 20,189,000	$ 17,366,000	$ 20,838,000	$ 14,299,000
Interest bearing deposits in other banks	3,820,000	293,000	7,568,000
Securities available for sale	308,146,000	300,416,000	241,327,000
Securities to be held to maturity	244,123,000	226,828,000	216,272,000
Securities to be held to maturity	246,238,000	225,537,000	225,200,000
Restricted equity securities	12,311,000	11,930,000	14,441,000
Loans held for sale	865,000	782,000	1,553,000
Mortgage servicing rights	1,888,000	1,696,000	1,489,000
Demand deposits	180,298,000	140,482,000	130,168,000
NOW deposits	250,316,000	282,971,000	254,136,000
Money market deposits	134,760,000	125,544,000	73,030,000
Savings deposits	226,391,000	217,340,000	208,826,000
Total deposits	1,319,259,000	1,242,957,000	1,145,709,000
Carrying value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	20,189,000	17,366,000	20,838,000
Interest bearing deposits in other banks	3,820,000	293,000	7,568,000
Securities available for sale	308,146,000	300,416,000	241,327,000
Securities to be held to maturity	244,123,000	226,828,000	216,272,000
Restricted equity securities	12,311,000	11,930,000	14,441,000
Loans held for sale	865,000	782,000	1,553,000
Loans	1,110,054,000	1,061,388,000	1,028,015,000
Mortgage servicing rights	1,109,000	1,113,000	948,000
Interest rate swap agreements	1,623,000	1,790,000
Accrued interest receivable	7,192,000	5,532,000	6,372,000
Demand deposits	180,298,000	140,482,000	130,168,000
NOW deposits	250,316,000	282,971,000	254,136,000
Money market deposits	134,760,000	125,544,000	73,030,000
Savings deposits	226,391,000	217,340,000	208,826,000
Local certificates of deposit	217,495,000	210,316,000	211,006,000
National certificates of deposit	309,999,000	266,304,000	268,543,000
Total deposits	1,319,259,000	1,242,957,000	1,145,709,000
Repurchase agreements	67,154,000	84,174,000	82,965,000
Federal Home Loan Bank advances	215,123,000	194,727,000	200,130,000
Total borrowed funds	282,277,000	278,901,000	283,095,000
Interest rate swap agreements			208,000
Accrued interest payable	603,000	479,000	499,000
Carrying value | Commercial | Real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	301,722,000	297,952,000	298,822,000
Carrying value | Commercial | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	32,989,000	24,954,000	18,078,000
Carrying value | Commercial | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	171,099,000	148,737,000	134,632,000
Carrying value | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	28,672,000	27,035,000	25,512,000
Carrying value | Residential | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	15,025,000	18,253,000	13,364,000
Carrying value | Residential | Term
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	425,985,000	409,999,000	401,911,000
Carrying value | Home equity line of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	109,516,000	109,986,000	111,537,000
Carrying value | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	25,046,000	24,472,000	24,159,000
Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	20,189,000	17,366,000	20,838,000
Interest bearing deposits in other banks	3,820,000	293,000	7,568,000
Securities available for sale	308,146,000	300,416,000	241,327,000
Securities to be held to maturity	246,238,000	225,537,000	225,200,000
Restricted equity securities	12,311,000	11,930,000	14,441,000
Loans held for sale	865,000	782,000	1,553,000
Loans	1,102,089,000	1,053,814,000	1,032,533,000
Mortgage servicing rights	1,888,000	1,696,000	1,489,000
Interest rate swap agreements	1,623,000	1,790,000
Accrued interest receivable	7,192,000	5,532,000	6,372,000
Demand deposits	174,958,000	133,342,000	134,043,000
NOW deposits	234,049,000	259,418,000	253,251,000
Money market deposits	126,402,000	115,087,000	68,204,000
Savings deposits	200,712,000	188,260,000	196,812,000
Local certificates of deposit	217,021,000	209,370,000	213,726,000
National certificates of deposit	309,853,000	266,372,000	268,873,000
Total deposits	1,262,995,000	1,171,849,000	1,134,909,000
Repurchase agreements	64,852,000	79,827,000	81,775,000
Federal Home Loan Bank advances	214,893,000	193,733,000	202,184,000
Total borrowed funds	279,745,000	273,560,000	283,959,000
Interest rate swap agreements			208,000
Accrued interest payable	603,000	479,000	499,000
Total Fair Value | Commercial | Real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	295,339,000	293,103,000	294,749,000
Total Fair Value | Commercial | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	32,291,000	24,548,000	17,832,000
Total Fair Value | Commercial | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	169,509,000	147,394,000	134,567,000
Total Fair Value | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	28,902,000	27,446,000	26,833,000
Total Fair Value | Residential | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	14,983,000	18,125,000	13,289,000
Total Fair Value | Residential | Term
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	428,556,000	410,327,000	410,502,000
Total Fair Value | Home equity line of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	107,855,000	108,740,000	110,635,000
Total Fair Value | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	24,654,000	24,131,000	24,126,000
Total Fair Value | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	20,189,000	17,366,000	20,838,000
Interest bearing deposits in other banks	3,820,000	293,000	7,568,000
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	0
Loans	0	0	0
Mortgage servicing rights	0	0	0
Interest rate swap agreements	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
Total Fair Value | Level 1 | Commercial | Real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | Level 1 | Commercial | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | Level 1 | Commercial | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | Level 1 | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | Level 1 | Residential | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | Level 1 | Residential | Term
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | Level 1 | Home equity line of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | Level 1 | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | 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	308,146,000	300,416,000	241,327,000
Securities to be held to maturity	246,238,000	225,537,000	225,200,000
Restricted equity securities	12,311,000	11,930,000	14,441,000
Loans held for sale	865,000	782,000	1,553,000
Loans	269,000	827,000	1,889,000
Mortgage servicing rights	1,888,000	1,696,000	1,489,000
Interest rate swap agreements	1,623,000	1,790,000
Accrued interest receivable	7,192,000	5,532,000	6,372,000
Demand deposits	174,958,000	133,342,000	134,043,000
NOW deposits	234,049,000	259,418,000	253,251,000
Money market deposits	126,402,000	115,087,000	68,204,000
Savings deposits	200,712,000	188,260,000	196,812,000
Local certificates of deposit	217,021,000	209,370,000	213,726,000
National certificates of deposit	309,853,000	266,372,000	268,873,000
Total deposits	1,262,995,000	1,171,849,000	1,134,909,000
Repurchase agreements	64,852,000	79,827,000	81,775,000
Federal Home Loan Bank advances	214,893,000	193,733,000	202,184,000
Total borrowed funds	279,745,000	273,560,000	283,959,000
Interest rate swap agreements			208,000
Accrued interest payable	603,000	479,000	499,000
Total Fair Value | Level 2 | Commercial | Real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	558,000	544,000
Total Fair Value | Level 2 | Commercial | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | Level 2 | Commercial | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	33,000	33,000	348,000
Total Fair Value | Level 2 | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | Level 2 | Residential | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | Level 2 | Residential | Term
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	236,000	236,000	933,000
Total Fair Value | Level 2 | Home equity line of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	0
Total Fair Value | Level 2 | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0	64,000
Total Fair Value | 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	0
Loans	1,101,820,000	1,052,987,000	1,030,644,000
Mortgage servicing rights	0	0	0
Interest rate swap agreements	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
Total Fair Value | Level 3 | Commercial | Real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	295,339,000	292,545,000	294,205,000
Total Fair Value | Level 3 | Commercial | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	32,291,000	24,548,000	17,832,000
Total Fair Value | Level 3 | Commercial | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	169,476,000	147,361,000	134,219,000
Total Fair Value | Level 3 | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	28,902,000	27,446,000	26,833,000
Total Fair Value | Level 3 | Residential | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	14,983,000	18,125,000	13,289,000
Total Fair Value | Level 3 | Residential | Term
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	428,320,000	410,091,000	409,569,000
Total Fair Value | Level 3 | Home equity line of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	107,855,000	108,740,000	110,635,000
Total Fair Value | Level 3 | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 24,654,000	$ 24,131,000	$ 24,062,000