CNB Financial (CCNE) 10-Q 9 Nov 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Nov. 06, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Trading Symbol	CCNE
Entity Registrant Name	CNB FINANCIAL CORP/PA
Entity Central Index Key	736,772
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		15,283,647

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 32,869	$ 26,937
Interest bearing deposits with other banks	2,806	2,246
Total cash and cash equivalents	35,675	29,183
Securities available for sale	424,761	495,835
Trading securities	5,981	4,858
Loans held for sale	1,672	7,528
Loans	2,102,195	1,876,966
Less: unearned discount	(3,621)	(3,430)
Less: allowance for loan losses	(17,849)	(16,330)
Net loans	2,080,725	1,857,206
FHLB and other equity interests	26,145	19,186
Premises and equipment, net	50,165	49,522
Bank owned life insurance	54,688	44,273
Mortgage servicing rights	1,384	1,391
Goodwill	38,730	38,730
Core deposit intangible	1,888	2,854
Accrued interest receivable and other assets	23,255	23,255
Total Assets	2,745,069	2,573,821
LIABILITIES AND SHAREHOLDERS' EQUITY
Non-interest bearing deposits	313,543	289,922
Interest bearing deposits	1,747,067	1,727,600
Total deposits	2,060,610	2,017,522
Short-term borrowings	141,737	134,078
FHLB and other long term borrowings	200,421	102,926
Subordinated debentures	70,620	70,620
Deposits held for sale	0	6,456
Accrued interest payable and other liabilities	27,233	30,435
Total liabilities	2,500,621	2,362,037
Common stock, $0 par value; authorized 50,000,000 shares; issued 15,308,378 shares at September 30, 2017 and 14,473,482 shares at December 31, 2016	0	0
Additional paid in capital	96,697	77,737
Retained earnings	147,132	134,295
Treasury stock, at cost (23,142 shares at September 30, 2017 and 5,667 shares at December 31, 2016)	(544)	(127)
Accumulated other comprehensive income (loss)	1,163	(121)
Total shareholders' equity	244,448	211,784
Total Liabilities and Shareholders' Equity	$ 2,745,069	$ 2,573,821

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	15,308,378	14,473,482
Treasury stock, shares	23,142	5,667

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
INTEREST AND DIVIDEND INCOME:
Loans including fees	$ 25,215	$ 21,749	$ 71,100	$ 59,478
Securities:
Taxable	1,970	2,257	6,286	7,026
Tax-exempt	692	825	2,266	2,575
Dividends	192	127	524	418
Total interest and dividend income	28,069	24,958	80,176	69,497
INTEREST EXPENSE:
Deposits	2,345	2,195	6,709	6,288
Borrowed funds	1,225	633	2,819	2,341
Subordinated debentures	982	197	2,940	590
Total interest expense	4,552	3,025	12,468	9,219
NET INTEREST INCOME	23,517	21,933	67,708	60,278
PROVISION FOR LOAN LOSSES	1,400	622	3,550	2,038
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	22,117	21,311	64,158	58,240
NON-INTEREST INCOME:
Service charges on deposit accounts	1,244	1,162	3,499	3,149
Other service charges and fees	587	653	1,675	1,837
Wealth and asset management fees	952	795	2,775	2,298
Net realized gains on available-for-sale securities	5	0	1,543	1,005
Net realized and unrealized gains on trading securities	160	235	475	265
Mortgage banking	237	388	668	706
Bank owned life insurance	592	281	1,308	807
Card processing and interchange income	942	876	2,790	2,499
Gain on sale of branch			536	0
Other	313	81	625	501
Total non-interest income	5,032	4,471	15,894	13,067
NON-INTEREST EXPENSES:
Salaries and benefits	9,101	8,506	27,008	23,905
Net occupancy expense	2,219	2,212	7,016	5,932
Amortization of core deposit intangible	305	347	967	779
Data processing	1,031	1,022	3,011	3,395
State and local taxes	710	595	2,063	1,645
Legal, professional, and examination fees	561	464	1,776	1,202
Advertising	495	427	1,527	1,306
FDIC insurance premiums	295	387	869	1,049
Prepayment penalties - long-term borrowings			0	1,506
Core processing conversion costs	0	42	0	1,597
Merger costs	0	266	0	481
Card processing and interchange expenses	541	587	1,577	1,670
Other	2,360	2,241	6,635	6,196
Total non-interest expenses	17,618	17,096	52,449	50,663
INCOME BEFORE INCOME TAXES	9,531	8,686	27,603	20,644
INCOME TAX EXPENSE	2,285	2,270	7,194	5,144
NET INCOME	$ 7,246	$ 6,416	$ 20,409	$ 15,500
EARNINGS PER SHARE:
Basic	$ 0.47	$ 0.44	$ 1.34	$ 1.07
Diluted	0.47	0.44	1.34	1.07
DIVIDENDS PER SHARE:
Cash dividends per share	$ 0.165	$ 0.165	$ 0.495	$ 0.495

Consolidated Statements of Inc5

Consolidated Statements of Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Accumulated other comprehensive income reclassification for change in fair value of interest rate swap agreements	$ 71	$ 84	$ 220	$ 260
Accumulated other comprehensive income reclassifications for net realized gains on available-for-sale securities	5	0	1,543	1,005
Income tax expense from reclassification	$ 23	$ 28	$ 463	$ 262

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 7,246	$ 6,416	$ 20,409	$ 15,500
Net change in fair value of interest rate swap agreement designated as cash flow hedge:
Unrealized gain (loss) on interest rate swap, net of tax of $0 and ($17) for the three months ended September 30, 2017 and 2016, and $1 and $42 for the nine months ended September 30, 2017 and 2016	0	32	(2)	(77)
Reclassification adjustment for losses recognized in earnings, net of tax of ($25) and ($29) for the three months ended September 30, 2017 and 2016, and ($77) and ($91) for the nine months ended September 30, 2017 and 2016	46	55	143	169
Net change in fair value of interest rate swap agreements designated as cash flow hedges	46	87	141	92
Unrealized gains on other-than-temporarily impaired securities available for sale:
Unrealized gains (losses) arising during the period, net of tax of $0 and $0 for the three months ended September 30, 2017 and 2016, and ($47) and $276 for the nine months ended September 30, 2017 and 2016	0	0	87	(513)
Reclassification adjustment for realized gains included in net income, net of tax of $0 and $0 for the three months ended September 30, 2017 and 2016, and $484 and $323 for the nine months ended September 30, 2017 and 2016	0	0	(899)	(599)
Unrealized gains on other-than-temporarily impaired securities available for sale net of reclassification adjustment for realized gains (losses) included in net income	0	0	(812)	(1,112)
Unrealized gains on other securities available for sale:
Unrealized gains (loss) arising during the period, net of tax of $433 and ($103) for the three months ended September 30, 2017 and 2016, and ($1,111) and ($3,039) for the nine months ended September 30, 2017 and 2016	(814)	187	2,059	5,641
Reclassification adjustment for realized gains included in net income, net of tax of $2 and $0 for the three months ended September 30, 2017 and 2016, and $56 and $29 for the nine months ended September 30, 2017 and 2016	(3)	0	(104)	(54)
Unrealized losses on other securities available for sale net of reclassification adjustment for realized gains included in net income	(817)	187	1,955	5,587
Other comprehensive income (loss)	(771)	274	1,284	4,567
COMPREHENSIVE INCOME	$ 6,475	$ 6,690	$ 21,693	$ 20,067

Consolidated Statements of Com7

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Unrealized gain (loss) on interest rate swaps, tax	$ 0	$ (17)	$ 1	$ 42
Reclassification adjustment for losses recognized in earnings, tax	(25)	(29)	(77)	(91)
Unrealized gains (losses) on other-than-temporarily impaired securities available for sale arising during the period, tax	0	0	(47)	276
Reclassification adjustment for realized gains included in net income, tax	0	0	484	323
Unrealized gains (loss) on other securities available for sale arising during the period, tax	433	(103)	(1,111)	(3,039)
Reclassification adjustment for realized gains included in net income, tax	$ 2	$ 0	$ 56	$ 29

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 20,409	$ 15,500
Adjustments to reconcile net income to net cash provided by operations:
PROVISION FOR LOAN LOSSES	3,550	2,038
Depreciation and amortization of premises and equipment, core deposit intangible, and mortgage servicing rights	3,974	3,246
Amortization and accretion of securities premiums and discounts, deferred loan fees and costs, net yield and credit mark on acquired loans, and unearned income	(980)	(1,051)
Net realized gains on sales of available-for-sale securities	(1,543)	(1,005)
Net realized and unrealized gains on trading securities	(475)	(265)
Proceeds from sale of trading securities	402	468
Purchase of trading securities	(1,050)	(271)
Gain on sale of branch	(536)	0
Gain on sale of loans	(253)	(516)
Net (gains) losses on dispositions of premises and equipment and foreclosed assets	(64)	117
Proceeds from sale of loans	17,978	22,329
Origination of loans held for sale	(20,001)	(23,335)
Income on bank owned life insurance, including death benefit proceeds in excess of cash surrender value	(1,308)	(807)
Stock-based compensation expense	600	628
Contribution of treasury stock	0	106
Changes in:
Accrued interest receivable and other assets	2,829	(31,192)
Accrued interest payable and other liabilities	(3,604)	(7,085)
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	19,928	(21,095)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from maturities, prepayments and calls of available-for-sale securities	59,347	44,360
Proceeds from sales of available-for-sale securities	15,374	4,420
Purchase of available-for-sale securities	(3,620)	(2,221)
Purchase of bank owned life insurance	(10,000)	0
Proceeds from death benefit of bank owned life insurance policies	893	0
Net cash received from sale of branch	1,079	0
Net cash paid for Lake National Bank acquisition	0	(2,866)
Loan origination and payments, net	(226,078)	(102,014)
Purchase of FHLB and other equity interests	(6,959)	(1,776)
Purchase of premises and equipment	(3,718)	(6,082)
Proceeds from the sale of premises and equipment and foreclosed assets	563	466
NET CASH USED IN BY INVESTING ACTIVITIES	(173,119)	(65,713)
Net change in:
Checking, money market and savings accounts	35,303	70,678
Certificates of deposit	8,864	(1,733)
Purchase of treasury stock	(1,360)	(23)
Cash dividends paid	(7,572)	(7,158)
Proceeds from stock offering, net of issuance costs	19,294	0
Repayment of long-term borrowings	(42,505)	(55,041)
Advances from long-term borrowings	140,000	80,000
Proceeds from issuance of subordinated debentures	0	50,000
Net change in short-term borrowings	7,659	(40,272)
NET CASH PROVIDED BY FINANCING ACTIVITIES	159,683	96,451
NET INCREASE IN CASH AND CASH EQUIVALENTS	6,492	9,643
CASH AND CASH EQUIVALENTS, Beginning	29,183	27,261
CASH AND CASH EQUIVALENTS, Ending	35,675	36,904
Cash paid during the period for:
Interest	12,699	9,506
Income taxes	6,000	3,966
SUPPLEMENTAL NONCASH DISCLOSURES:
Transfers to other real estate owned	239	49
Grant of restricted stock awards from treasury stock	943	875
Net assets acquired excluding cash and cash equivalents	543	0
Lake National Bank [Member]
SUPPLEMENTAL NONCASH DISCLOSURES:
Net assets acquired excluding cash and cash equivalents	$ 0	$ 2,866

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	1. BASIS OF PRESENTATION The accompanying consolidated financial statements have been prepared pursuant to rules and regulations of the SEC and in compliance with accounting principles generally accepted in the United States of America (“GAAP”). Because this report is based on an interim period, certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted. In the opinion of management of the registrant, the accompanying consolidated financial statements as of September 30, 2017 and for the three and nine month periods ended September 30, 2017 and 2016 include all adjustments, consisting of only normal recurring adjustments, necessary for a fair presentation of the financial condition and the results of operations for the periods presented. The financial performance reported for CNB Financial Corporation (the “Corporation”) for the three and nine month periods ended September 30, 2017 is not necessarily indicative of the results to be expected for the full year. This information should be read in conjunction with the Corporation’s Annual Report on Form 10-K 10-K”).

Stock Compensation

Stock Compensation	9 Months Ended
	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Compensation	2. STOCK COMPENSATION The Corporation has a stock incentive plan for key employees and independent directors. The stock incentive plan, which is administered by a committee of the Board of Directors, provides for aggregate grants of up to 500,000 shares of common stock in the form of nonqualified options or restricted stock. For key employees, the plan vesting is one-fourth one-third At September 30, 2017, there was no unrecognized compensation cost related to nonvested stock options granted under this plan and no stock options were granted during the three and nine month periods ended September 30, 2017 and 2016. On February 14, 2017, the Corporation’s Board of Directors granted performance-based restricted stock awards (“PBRSAs”) with a maximum of 10,000 shares to an employee. The number of PBRSAs will depend on certain performance conditions and are also subject to service-based vesting. Compensation expense for the restricted stock awards is recognized over the requisite service period noted above based on the fair value of the shares at the date of grant. Nonvested restricted stock awards are recorded as a reduction of additional paid-in-capital A summary of changes in nonvested restricted stock awards for the three months ended September 30, 2017 follows: Per Share Weighted Average Shares Grant Date Fair Value Nonvested at beginning of period 99,233 $ 20.68 Forfeited (135 ) 25.92 Vested (250 ) 18.58 Nonvested at end of period 98,848 20.68 A summary of changes in nonvested restricted stock awards for the nine months ended September 30, 2017 follows: Per Share Weighted Average Shares Grant Date Fair Value Nonvested at beginning of period 100,726 $ 17.36 Granted 38,123 25.92 Forfeited (285 ) 21.56 Vested (39,716 ) 17.29 Nonvested at end of period 98,848 $ 20.68 The fair value of shares vested was $6 and $3 during the three months ended September 30, 2017 and 2016, respectively. The fair value of shares vested was $929 and $559 during the nine months ended September 30, 2017 and 2016, respectively.

Fair Value

Fair Value	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value	3. FAIR VALUE Fair Value Measurement Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. A fair value hierarchy has also been established which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The following three levels of inputs are used to measure fair value: Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3: Significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability. The fair values of most trading securities and securities available for sale are determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs) or matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs). The Corporation’s structured pooled trust preferred securities are priced using Level 3 inputs. The decline in the level of observable inputs and market activity in this class of investments by the measurement date has been significant and resulted in unreliable external pricing. Broker pricing and bid/ask spreads, when available, vary widely, and the once-active market has become comparatively inactive. The Corporation engaged a third party consultant who has developed a model for pricing these securities. Information such as historical and current performance of the underlying collateral, deferral and default rates, collateral coverage ratios, break in yield calculations, cash flow projections, liquidity and credit premiums required by a market participant, and financial trend analysis with respect to the individual issuing financial institutions and insurance companies are utilized in determining the security valuation. Due to market conditions as well as the limited trading activity of these types of securities, the market value of the Corporation’s structured pooled trust preferred securities are highly sensitive to assumption changes and market volatility. The Corporation’s derivative instruments are interest rate swaps that are similar to those that trade in liquid markets. As such, significant fair value inputs can generally be verified and do not typically involve significant management judgments (Level 2 inputs). The fair value of impaired loans with specific allocations for the allowance for loan losses is generally based on recent real estate appraisals prepared by third-parties. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the appraisers to adjust for differences between the comparable sales and income data available. Management also adjusts appraised values based on the length of time that has passed since the appraisal date and other factors. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. Assets and liabilities measured at fair value on a recurring basis are as follows at September 30, 2017 and December 31, 2016: Fair Value Measurements at September 30, 2017 Using Quoted Prices in Significant Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Description Total (Level 1) (Level 2) (Level 3) Assets: Securities Available For Sale: U.S. Government sponsored entities $ 121,596 $ 0 $ 121,596 $ 0 States and political subdivisions 143,470 0 143,470 0 Residential and multi-family mortgage 103,253 0 103,253 0 Corporate notes and bonds 17,269 0 17,269 0 Pooled SBA 38,204 0 38,204 0 Other equity securities 969 969 0 0 Total Securities Available For Sale $ 424,761 $ 969 $ 423,792 $ 0 Interest Rate swaps $ 233 $ 0 $ 233 $ 0 Trading Securities: Corporate equity securities $ 4,095 $ 4,095 $ 0 $ 0 Mutual funds 1,371 1,371 0 0 Certificates of deposit 205 205 0 0 Corporate notes and bonds 257 257 0 0 U.S. Government sponsored entities 53 0 53 0 Total Trading Securities $ 5,981 $ 5,928 $ 53 $ 0 Liabilities, Interest rate swaps $ (475 ) $ 0 $ (475 ) $ 0 Fair Value Measurements at December 31, 2016 Using Quoted Prices in Significant Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Description Total (Level 1) (Level 2) (Level 3) Assets: Securities Available For Sale: U.S. Government sponsored entities $ 140,351 $ 0 $ 140,351 $ 0 States and political subdivisions 157,037 0 157,037 0 Residential and multi-family mortgage 134,976 0 134,976 0 Corporate notes and bonds 17,414 0 17,414 0 Pooled trust preferred 2,049 0 0 2,049 Pooled SBA 43,037 0 43,037 0 Other equity securities 971 971 0 0 Total Securities Available For Sale $ 495,835 $ 971 $ 492,815 $ 2,049 Interest Rate swaps $ 211 $ 0 $ 211 $ 0 Trading Securities: Corporate equity securities $ 3,312 $ 3,312 $ 0 $ 0 Mutual funds 1,037 1,037 0 0 Certificates of deposit 202 202 0 0 Corporate notes and bonds 254 254 0 0 U.S. Government sponsored entities 53 0 53 0 Total Trading Securities $ 4,858 $ 4,805 $ 53 $ 0 Liabilities, Interest rate swaps $ (670 ) $ 0 $ (670 ) $ 0 The table below presents a reconciliation of the fair value of securities available for sale measured on a recurring basis using significant unobservable inputs (Level 3) for the three months ended September 30, 2017 and 2016: 2017 2016 Balance, July 1 $ 0 $ 1,702 Total gains or (losses): Included in other comprehensive income (unrealized) 0 0 Sale of available-for-sale 0 0 Balance, September 30 $ 0 $ 1,702 The table below presents a reconciliation of the fair value of securities available for sale measured on a recurring basis using significant unobservable inputs (Level 3) for the nine months ended September 30, 2017 and 2016: 2017 2016 Balance, January 1 $ 2,049 $ 3,413 Total gains or (losses): Included in other comprehensive income (unrealized) 134 (922 ) Sale of available-for-sale (2,183 ) (789 ) Balance, September 30 $ 0 $ 1,702 The following table presents quantitative information about Level 3 fair value measurements at December 31, 2016: Fair Valuation Unobservable Inputs Input Utilized Pooled trust preferred $ 2,049 Discounted cash flow Collateral default rate 0.5% in 2016 and thereafter Yield (weighted average) 10% Prepayment speed 2.0% constant prepayment rate in 2016 and thereafter At December 31, 2016, the significant unobservable inputs used in the fair value measurement of the Corporation’s pooled trust preferred securities were collateral default rate, yield, and prepayment speed. Significant increases in specific-issuer default assumptions or decreases in specific-issuer recovery assumptions would result in a lower fair value measurement. Conversely, decreases in specific-issuer default assumptions or increases in specific-issuer recovery assumptions would result in a higher fair value measurement. Assets and liabilities measured at fair value on a non-recurring Fair Value Measurements at September 30, 2017 Using Quoted Prices in Significant Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Description Total (Level 1) (Level 2) (Level 3) Assets: Impaired loans: Commercial mortgages $ 11 0 0 $ 11 Fair Value Measurements at December 31, 2016 Using Quoted Prices in Significant Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Description Total (Level 1) (Level 2) (Level 3) Assets: Impaired loans: Commercial mortgages $ 2,067 0 0 $ 2,067 Impaired loans, measured for impairment using the fair value of collateral for collateral dependent loans, had a recorded investment of $668 with a valuation allowance of $657 as of September 30, 2017, resulting in a negative provision for loan losses of ($22) and ($395) for the corresponding three and nine month periods ended September 30, 2017. Impaired loans had a recorded investment of $3,120 with a valuation allowance of $1,053 as of December 31, 2016. Impaired loans carried at fair value resulted in an additional negative provision for loan losses of ($95) and ($42) for the three and nine month periods ended September 30, 2016. The estimated fair values of impaired collateral dependent loans such as commercial or residential mortgages are determined primarily through third-party appraisals. When a collateral dependent loan, such as a commercial or residential mortgage loan, becomes impaired, a decision is made regarding whether an updated certified appraisal of the real estate is necessary. This decision is based on various considerations, including the age of the most recent appraisal, the loan-to-value The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring Fair Valuation Technique Unobservable Inputs Range Impaired loans – commercial mortgages $ 11 Discounted cash flow method Discount used in discounted cash flow method 10% (10%) The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring Fair Valuation Technique Unobservable Inputs Range Impaired loans – commercial mortgages $ 2,067 Sales comparison approach and discounted cash flow method Adjustment for differences between the comparable sales and discount used in discounted cash flow method 10% - 14% (13%) Fair Value of Financial Instruments The following table presents the carrying amount and fair value of financial instruments at September 30, 2017: Carrying Fair Value Measurement Using: Total Amount Level 1 Level 2 Level 3 Fair Value ASSETS Cash and cash equivalents $ 35,675 $ 35,675 $ 0 $ 0 $ 35,675 Securities available for sale 424,761 969 423,792 0 424,761 Trading securities 5,981 5,928 53 0 5,981 Loans held for sale 1,672 0 1,673 0 1,673 Net loans 2,080,725 0 0 2,056,755 2,056,755 FHLB and other equity interests 26,145 n/a n/a n/a n/a Interest rate swaps 233 0 233 0 233 Accrued interest receivable 9,378 7 3,167 6,204 9,378 LIABILITIES Deposits $ (2,060,610 ) $ (1,820,972 ) $ (237,587 ) $ 0 $ (2,058,559 ) FHLB and other borrowings (342,158 ) 0 (337,913 ) 0 (337,913 ) Subordinated debentures (70,620 ) 0 (62,923 ) 0 (62,923 ) Interest rate swaps (475 ) 0 (475 ) 0 (475 ) Accrued interest payable (279 ) 0 (279 ) 0 (279 ) The following table presents the carrying amount and fair value of financial instruments at December 31, 2016: Carrying Fair Value Measurement Using: Total Amount Level 1 Level 2 Level 3 Fair Value ASSETS Cash and cash equivalents $ 29,183 $ 29,183 $ 0 $ 0 $ 29,183 Securities available for sale 495,835 971 492,815 2,049 495,835 Trading securities 4,858 4,805 53 0 4,858 Loans held for sale 7,528 0 7,553 0 7,553 Net loans 1,857,206 0 0 1,817,341 1,817,341 FHLB and other equity interests 19,186 n/a n/a n/a n/a Interest rate swaps 211 0 211 0 211 Accrued interest receivable 8,264 6 3,014 5,244 8,264 LIABILITIES Deposits $ (2,017,522 ) $ (1,786,748 ) $ (219,765 ) $ 0 (2,006,513 ) FHLB and other borrowings (237,004 ) 0 (226,769 ) 0 (226,769 ) Subordinated debentures (70,620 ) 0 (61,831 ) 0 (61,831 ) Deposits held for sale (6,456 ) 0 (6,417 ) 0 (6,417 ) Interest rate swaps (670 ) 0 (670 ) 0 (670 ) Accrued interest payable (510 ) 0 (510 ) 0 (510 ) The methods and assumptions, not otherwise presented, used to estimate fair values are described as follows: Cash and cash equivalents: Interest bearing time deposits with other banks: Loans held for sale: Loans: FHLB and other equity interests: Accrued interest receivable: Deposits: Deposits held for sale: FHLB and other borrowings: Subordinated debentures: Accrued interest payable: While estimates of fair value are based on management’s judgment of the most appropriate factors as of the balance sheet date, there is no assurance that the estimated fair values would have been realized if the assets had been disposed of or the liabilities settled at that date, since market values may differ depending on various circumstances. The estimated fair values would also not apply to subsequent dates. In addition, other assets and liabilities that are not financial instruments, such as premises and equipment, are not included in the disclosures. Also, non-financial

Securities

Securities	9 Months Ended
	Sep. 30, 2017
Cash and Cash Equivalents [Abstract]
Securities	4. SECURITIES Securities available for sale at September 30, 2017 and December 31, 2016 are as follows: September 30, 2017 December 31, 2016 Amortized Unrealized Fair Amortized Unrealized Fair Cost Gains Losses Value Cost Gains Losses Value U.S. Gov’t sponsored entities $ 121,022 $ 780 $ (206 ) $ 121,596 $ 139,823 $ 1,107 $ (579 ) $ 140,351 State & political subdivisions 138,825 4,911 (266 ) 143,470 153,492 4,194 (649 ) 157,037 Residential & multi-family mortgage 103,962 485 (1,194 ) 103,253 136,807 551 (2,382 ) 134,976 Corporate notes & bonds 17,610 85 (426 ) 17,269 18,299 77 (962 ) 17,414 Pooled trust preferred 0 0 0 0 800 1,249 0 2,049 Pooled SBA 38,417 406 (619 ) 38,204 43,450 505 (918 ) 43,037 Other equity securities 1,020 0 (51 ) 969 1,020 0 (49 ) 971 Total $ 420,856 $ 6,667 $ (2,762 ) $ 424,761 $ 493,691 $ 7,683 $ (5,539 ) $ 495,835 At September 30, 2017 and December 31, 2016, there were no holdings of securities of any one issuer, other than the U.S. Government sponsored entities, in an amount greater than 10% of shareholders’ equity. The Corporation’s residential and multi-family mortgage securities are issued by government sponsored entities. Trading securities at September 30, 2017 and December 31, 2016 are as follows: September 30, December 31, Corporate equity securities $ 4,095 $ 3,312 Mutual funds 1,371 1,037 Certificates of deposit 205 202 Corporate notes and bonds 257 254 U.S. Government sponsored entities 53 53 Total $ 5,981 $ 4,858 Securities with unrealized losses at September 30, 2017 and December 31, 2016, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are as follows: September 30, 2017 Less than 12 Months 12 Months or More Total Description of Securities Fair Unrealized Fair Unrealized Fair Unrealized U.S. Gov’t sponsored entities $ 50,112 $ (204 ) $ 3,398 $ (2 ) $ 53,510 $ (206 ) State & political subdivisions 3,562 (50 ) 1,524 (216 ) 5,086 (266 ) Residential & multi-family mortgage 33,692 (259 ) 44,212 (935 ) 77,904 (1,194 ) Corporate notes & bonds 0 (0 ) 9,068 (426 ) 9,068 (426 ) Pooled SBA 4,671 (67 ) 18,780 (552 ) 23,451 (619 ) Other equity securities 0 (0 ) 969 (51 ) 969 (51 ) $ 92,037 $ (580 ) $ 77,951 $ (2,182 ) $ 169,988 $ (2,762 ) December 31, 2016 Less than 12 Months 12 Months or More Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. Gov’t sponsored entities $ 90,380 $ (579 ) $ 0 $ (0 ) $ 90,380 $ (579 ) State & political subdivisions 32,353 (448 ) 264 (201 ) 32,617 (649 ) Residential and multi-family mortgage 65,598 (1,255 ) 34,611 (1,127 ) 100,209 (2,382 ) Corporate notes & bonds 2,089 (11 ) 8,476 (951 ) 10,565 (962 ) Pooled SBA 6,481 (126 ) 20,560 (792 ) 27,041 (918 ) Other equity securities 0 (0 ) 971 (49 ) 971 (49 ) $ 196,901 $ (2,419 ) $ 64,882 $ (3,120 ) $ 261,783 $ (5,539 ) The Corporation evaluates securities for other-than-temporary impairment on a quarterly basis, or more frequently when economic or market conditions warrant such an evaluation. A roll-forward of the other-than-temporary impairment amount related to credit losses for the three and nine months ended September 30, 2017 and 2016 is as follows: Three months ended Nine months ended 2017 2016 2017 2016 Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, beginning of period $ 0 $ 2,071 $ 2,071 $ 4,054 Credit losses previously recognized on securities sold during the period 0 0 (2,071 ) (1,983 ) Additional credit loss for which other-than-temporary impairment was not previously recognized 0 0 0 0 Additional credit loss for which other-than-temporary impairment was previously recognized 0 0 0 0 Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, end of period $ 0 $ 2,071 $ 0 $ 2,071 The adjusted amortized cost of structured pooled trust preferred securities as of December 31, 2016 is insignificant. For the securities that comprise corporate notes and bonds and the securities that are issued by state and political subdivisions, management monitors publicly available financial information, such as filings with the Securities and Exchange Commission, in order to evaluate the securities for other-than-temporary impairment. For financial institution issuers, management monitors information from quarterly “call” report filings that are used to generate Uniform Bank Performance Reports. All other securities that were in an unrealized loss position at the balance sheet date were reviewed by management, and issuer-specific documents were reviewed as appropriate. When reviewing securities for other-than-temporary impairment, management considers the financial condition and near-term prospects of the issuer and whether downgrades by bond rating agencies have occurred. Management also considers the length of time and extent to which fair value has been less than cost, and whether management does not have the intent to sell these securities and it is likely that it will not be required to sell the securities before their anticipated recovery. As of September 30, 2017 and December 31, 2016, management concluded that the securities described in the previous paragraph were not other-than-temporarily impaired for the following reasons: • There is no indication of any significant deterioration of the creditworthiness of the institutions that issued the securities. • All contractual interest payments on the securities have been received as scheduled, and no information has come to management’s attention through the processes previously described which would lead to a conclusion that future contractual payments will not be timely received. The Corporation does not intend to sell and it is not more likely than not that it will be required to sell the securities in an unrealized loss position before recovery of its amortized cost basis. On September 30, 2017 and December 31, 2016, securities carried at $298,989 and $329,379, respectively, were pledged to secure public deposits and for other purposes as provided by law. Information pertaining to security sales on available for sale securities is as follows: Proceeds Gross Gross Three months ended September 30, 2017 $ 7,757 $ 76 ($ 71 ) Three months ended September 30, 2016 $ 0 $ 0 $ 0 Nine months ended September 30, 2017 $ 15,374 $ 1,614 ($ 71 ) Nine months ended September 30, 2016 $ 4,420 $ 1,005 $ 0 The tax provision related to these net realized gains was $2 and $540 during the three and nine months ended September 30, 2017 and $0 and $352 during the three and nine months ended September 30, 2016. The following is a schedule of the contractual maturity of securities available for sale, excluding equity securities, at September 30, 2017: Amortized Fair Cost Value 1 year or less $ 49,501 $ 49,346 1 year – 5 years 164,006 167,361 5 years – 10 years 57,416 59,157 After 10 years 6,534 6,471 277,457 282,335 Residential and multi-family mortgage 103,962 103,253 Pooled SBA 38,417 38,204 Total debt securities $ 419,836 $ 423,792 Mortgage and asset backed securities and pooled SBA securities are not due at a single date; periodic payments are received based on the payment patterns of the underlying collateral.

Loans

Loans	9 Months Ended
	Sep. 30, 2017
Receivables [Abstract]
Loans	5. LOANS Total net loans at September 30, 2017 and December 31, 2016 are summarized as follows: September 30, December 31, Commercial, industrial, and agricultural $ 663,944 $ 567,800 Commercial mortgages 656,130 574,826 Residential real estate 697,059 652,883 Consumer 78,264 74,816 Credit cards 6,249 6,046 Overdrafts 549 595 Less: unearned discount (3,621 ) (3,430 ) allowance for loan losses (17,849 ) (16,330 ) Loans, net $ 2,080,725 $ 1,857,206 At September 30, 2017 and December 31, 2016, net unamortized loan (fees) costs of $(2,744) and $(1,507), respectively, have been included in the carrying value of loans. The Corporation’s outstanding loans and related unfunded commitments are primarily concentrated within Central and Western Pennsylvania, Central and Northeastern Ohio, and Western New York. The Bank attempts to limit concentrations within specific industries by utilizing dollar limitations to single industries or customers, and by entering into participation agreements with third parties. Collateral requirements are established based on management’s assessment of the customer. The Corporation maintains lending policies to control the quality of the loan portfolio. These policies delegate the authority to extend loans under specific guidelines and underwriting standards. These policies are prepared by the Corporation’s management and reviewed and ratified annually by the Corporation’s Board of Directors. Pursuant to the Corporation’s lending policies, management considers a variety of factors when determining whether to extend credit to a customer, including loan-to-value Commercial, industrial, and agricultural loans comprised 32% and 30% of the Corporation’s total loan portfolio at September 30, 2017 and December 31, 2016, respectively. Commercial mortgage loans comprised 31% and 31% of the Corporation’s total loan portfolio at September 30, 2017 and December 31, 2016, respectively. Management assigns a risk rating to all commercial loans at loan origination. The loan-to-value loan-to-value Residential real estate loans comprised 33% and 35% of the Corporation’s total loan portfolio at September 30, 2017 and December 31, 2016, respectively. The loan-to-value loan-to-value Transactions in the allowance for loan losses for the three months ended September 30, 2017 were as follows: Commercial, Residential Industrial, and Commercial Real Credit Agricultural Mortgages Estate Consumer Cards Overdrafts Total Allowance for loan losses, July 1, 2017 $ 5,563 $ 7,641 $ 1,670 $ 2,068 $ 142 $ 185 $ 17,269 Charge-offs (20 ) (22 ) (130 ) (703 ) (39 ) (63 ) (977 ) Recoveries 36 3 0 96 8 14 157 Provision (benefit) for loan losses (223 ) 472 468 627 0 56 1,400 Allowance for loan losses, September 30, 2017 $ 5,356 $ 8,094 $ 2,008 $ 2,088 $ 111 $ 192 $ 17,849 Transactions in the allowance for loan losses for the nine months ended September 30, 2017 were as follows: Commercial, Residential Industrial, and Commercial Real Credit Agricultural Mortgages Estate Consumer Cards Overdrafts Total Allowance for loan losses, January 1, 2017 $ 5,428 $ 6,753 $ 1,653 $ 2,215 $ 93 $ 188 $ 16,330 Charge-offs (50 ) (22 ) (328 ) (1,969 ) (111 ) (192 ) (2,672 ) Recoveries 167 197 73 110 23 71 641 Provision (benefit) for loan losses (189 ) 1,166 610 1,732 106 125 3,550 Allowance for loan losses, September 30, 2017 $ 5,356 $ 8,094 $ 2,008 $ 2,088 $ 111 $ 192 $ 17,849 Transactions in the allowance for loan losses for the three months ended September 30, 2016 were as follows: Commercial, Residential Industrial, and Commercial Real Credit Agricultural Mortgages Estate Consumer Cards Overdrafts Total Allowance for loan losses, July 1, 2016 $ 5,218 $ 6,207 $ 2,299 $ 2,066 $ 50 $ 148 $ 15,988 Charge-offs (86 ) 0 (95 ) (709 ) (17 ) (86 ) (993 ) Recoveries 37 2 10 20 3 14 86 Provision (benefit) for loan losses (24 ) 27 (65 ) 545 36 103 622 Allowance for loan losses, September 30, 2016 $ 5,145 $ 6,236 $ 2,149 $ 1,922 $ 72 $ 179 $ 15,703 Transactions in the allowance for loan losses for the nine months ended September 30, 2016 were as follows: Commercial, Residential Industrial, and Commercial Real Credit Agricultural Mortgages Estate Consumer Cards Overdrafts Total Allowance for loan losses, January 1, 2016 $ 6,035 $ 5,605 $ 2,475 $ 2,371 $ 90 $ 161 $ 16,737 Charge-offs (519 ) (20 ) (244 ) (2,397 ) (54 ) (167 ) (3,401 ) Recoveries 84 7 72 94 18 54 329 Provision (benefit) for loan losses (455 ) 644 (154 ) 1,854 18 131 2,038 Allowance for loan losses, September 30, 2016 $ 5,145 $ 6,236 $ 2,149 $ 1,922 $ 72 $ 179 $ 15,703 The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and is based on the Corporation’s impairment method as of September 30, 2017 and December 31, 2016. The recorded investment in loans excludes accrued interest and unearned discounts due to their insignificance. September 30, 2017 Commercial, Commercial Residential Consumer Credit Overdrafts Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 Collectively evaluated for impairment 5,236 4,186 2,008 2,088 111 192 13,821 Acquired with deteriorated credit quality 0 0 0 0 0 0 0 Modified in a troubled debt restructuring 120 3,908 0 0 0 0 4,028 Total ending allowance balance $ 5,356 $ 8,094 $ 2,008 $ 2,088 $ 111 $ 192 $ 17,849 Loans: Individually evaluated for impairment $ 602 $ 51 $ 0 $ 0 $ 0 $ 0 $ 653 Collectively evaluated for impairment 660,461 639,965 697,059 78,264 6,249 549 2,082,547 Acquired with deteriorated credit quality 0 1,487 0 0 0 0 1,487 Modified in a troubled debt restructuring 2,881 14,627 0 0 0 0 17,508 Total ending loans balance $ 663,944 $ 656,130 $ 697,059 $ 78,264 $ 6,249 $ 549 $ 2,102,195 December 31, 2016 Commercial, Commercial Residential Consumer Credit Overdrafts Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 188 $ 996 $ 0 $ 0 $ 0 $ 0 $ 1,184 Collectively evaluated for impairment 5,115 3,543 1,653 2,215 93 188 12,807 Acquired with deteriorated credit quality 0 0 0 0 0 0 0 Modified in a troubled debt restructuring 125 2,214 0 0 0 0 2,339 Total ending allowance balance $ 5,428 $ 6,753 $ 1,653 $ 2,215 $ 93 $ 188 $ 16,330 Loans: Individually evaluated for impairment $ 775 $ 6,176 $ 0 $ 0 $ 0 $ 0 $ 6,951 Collectively evaluated for impairment 564,180 557,932 652,883 74,816 6,046 595 1,856,452 Acquired with deteriorated credit quality 205 1,527 0 0 0 0 1,732 Modified in a troubled debt restructuring 2,640 9,191 0 0 0 0 11,831 Total ending loans balance $ 567,800 $ 574,826 $ 652,883 $ 74,816 $ 6,046 $ 595 $ 1,876,966 Commercial and commercial real estate loans greater than $250,000 are individually evaluated for impairment. The following tables present information related to loans individually evaluated for impairment, including loans modified in troubled debt restructurings, by portfolio segment as of September 30, 2017 and December 31, 2016 and for the three and nine months ended September 30, 2017 and 2016: September 30, 2017 Unpaid Principal Recorded Allowance for Loan With an allowance recorded: Commercial, industrial, and agricultural $ 1,212 $ 1,213 $ 120 Commercial mortgage 9,995 9,611 3,908 Residential real estate 0 0 0 With no related allowance recorded: Commercial, industrial, and agricultural 3,089 2,270 0 Commercial mortgage 5,836 5,067 0 Residential real estate 0 0 0 Total $ 20,132 $ 18,161 $ 4,028 December 31, 2016 Unpaid Principal Recorded Allowance for Loan With an allowance recorded: Commercial, industrial, and agricultural $ 1,644 $ 1,644 $ 313 Commercial mortgage 16,200 15,367 3,210 Residential real estate 0 0 0 With no related allowance recorded: Commercial, industrial, and agricultural 2,669 1,771 0 Commercial mortgage 0 0 0 Residential real estate 0 0 0 Total $ 20,513 $ 18,782 $ 3,523 The unpaid principal balance of impaired loans includes the Corporation’s recorded investment in the loan and amounts that have been charged off. Three Months Ended September 30, 2017 Three Months Ended September 30, 2016 Average Interest Cash Basis Average Interest Cash Basis Recorded Income Interest Recorded Income Interest Investment Recognized Recognized Investment Recognized Recognized With an allowance recorded: Commercial, industrial, and agricultural $ 1,190 $ 20 $ 20 $ 2,340 $ 34 $ 34 Commercial mortgage 9,724 77 77 7,253 57 57 Residential real estate 0 0 0 0 0 0 With no related allowance recorded: Commercial, industrial, and agricultural 2,142 23 23 2,148 24 24 Commercial mortgage 4,981 33 33 2,214 17 17 Residential real estate 0 0 0 0 0 0 Total $ 18,037 $ 153 $ 153 $ 13,955 $ 132 $ 132 Nine Months Ended September 30, 2017 Nine Months Ended September 30, 2016 Average Interest Cash Basis Average Interest Cash Basis Recorded Income Interest Recorded Income Interest Investment Recognized Recognized Investment Recognized Recognized With an allowance recorded: Commercial, industrial, and agricultural $ 1,413 $ 56 $ 56 $ 2,859 $ 36 $ 36 Commercial mortgage 12,497 293 293 6,331 61 61 Residential real estate 0 0 0 83 6 6 With no related allowance recorded: Commercial, industrial, and agricultural 1,927 73 73 2,420 26 26 Commercial mortgage 2,490 100 100 3,467 20 20 Residential real estate 0 0 0 0 0 0 Total $ 18,327 $ 522 $ 522 $ 15,160 $ 149 $ 149 The following table presents the recorded investment in nonaccrual loans and loans past due over 90 days still accruing interest by class of loans as of September 30, 2017 and December 31, 2016: September 30, 2017 December 31, 2016 Nonaccrual Past Due Nonaccrual Past Due Commercial, industrial, and agricultural $ 1,885 $ 408 $ 2,734 $ 0 Commercial mortgages 11,526 0 5,996 0 Residential real estate 5,663 163 5,600 0 Consumer 712 0 999 0 Credit cards 0 21 0 10 Total $ 19,786 $ 592 $ 15,329 $ 10 Nonaccrual loans and loans past due over 90 days still on accrual include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans. The following table presents the aging of the recorded investment in past due loans as of September 30, 2017 and December 31, 2016 by class of loans. September 30, 2017 30-59 Days 60-89 Days Greater Than Total Loans Not Total Commercial, industrial, and agricultural $ 1,827 $ 486 $ 947 $ 3,260 $ 660,684 $ 663,944 Commercial mortgages 0 40 704 744 655,386 656,130 Residential real estate 1,688 1,932 4,647 8,267 688,792 697,059 Consumer 484 305 677 1,466 76,798 78,264 Credit cards 63 36 21 120 6,129 6,249 Overdrafts 0 0 0 0 549 549 Total $ 4,062 $ 2,799 $ 6,996 $ 13,857 $ 2,088,338 $ 2,102,195 December 31, 2016 30-59 Days 60-89 Days Greater Than Total Loans Not Total Commercial, industrial, and agricultural $ 1,558 $ 299 $ 1,294 $ 3,151 $ 564,649 $ 567,800 Commercial mortgages 559 0 1,516 2,075 572,751 574,826 Residential real estate 2,155 737 3,710 6,602 646,281 652,883 Consumer 648 890 974 2,512 72,304 74,816 Credit cards 105 0 10 115 5,931 6,046 Overdrafts 0 0 0 0 595 595 Total $ 5,025 $ 1,926 $ 7,504 $ 14,455 $ 1,862,511 $ 1,876,966 Troubled Debt Restructurings The terms of certain loans have been modified as troubled debt restructurings. The modification of the terms of such loans included either or both of the following: a reduction of the stated interest rate of the loan or an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk. The following table presents the number of loans, loan balances, and specific reserves for loans that have been restructured in a troubled debt restructuring as of September 30, 2017 and December 31, 2016. September 30, 2017 December 31, 2016 Number of Loan Specific Number of Loan Specific Commercial, industrial, and agricultural 8 $ 2,881 $ 120 7 $ 2,640 $ 125 Commercial mortgages 10 14,627 3,908 8 9,191 2,214 Residential real estate 0 0 0 0 0 0 Consumer 0 0 0 0 0 0 Credit cards 0 0 0 0 0 0 Total 18 $ 17,508 $ 4,028 15 $ 11,831 $ 2,339 The following tables present loans by class modified as troubled debt restructurings that occurred during the nine months ended September 30, 2017. There were no loans modified as a troubled debt restructuring during the nine months ended September 30, 2016. There were four loans modified as a troubled debt restructuring during the three months ended September 30, 2017, and no loans modified as troubled debt restructurings during the three months ended September 30, 2016. Nine Months Ended September 30, 2017 Number of Pre-Modification Post-Modification Commercial, industrial, and agricultural 2 $ 324 $ 379 Commercial mortgages 2 6,227 6,276 Residential real estate 0 0 0 Consumer 0 0 0 Credit cards 0 0 0 Total 4 $ 6,551 $ 6,655 The troubled debt restructurings described above increased the allowance for loan losses by $169 and $0 during the three months ended September 30, 2017 and 2016 and $1,324 and $0 during the nine months ended September 30, 2017 and 2016. A troubled debt restructured loan is considered to be in payment default once it is 90 days contractually past due under the modified terms. In order to determine whether a borrower is experiencing financial difficulty, the Corporation performs an evaluation using its internal underwriting policies of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without a loan modification. The Corporation has no further loan commitments to customers whose loans are classified as a troubled debt restructuring. Generally, non-performing Credit Quality Indicators The Corporation classifies commercial, industrial, and agricultural loans and commercial mortgage loans into risk categories based on relevant information about the ability of borrowers to service their debt, such as current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. The Corporation uses the following definitions for risk ratings: Special Mention: Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the Corporation’s credit position at some future date. Substandard: Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Corporation will sustain some loss if the deficiencies are not corrected. Doubtful: Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Loans not rated as special mention, substandard, or doubtful are considered to be pass rated loans. All loans included in the following tables have been assigned a risk rating within 12 months of the balance sheet date. September 30, 2017 Pass Special Substandard Doubtful Total Commercial, industrial, and agricultural $ 631,550 $ 9,312 $ 23,082 $ 0 $ 663,944 Commercial mortgages 636,522 3,129 16,479 0 656,130 Total $ 1,268,072 $ 12,441 $ 39,561 $ 0 $ 1,320,074 December 31, 2016 Pass Special Substandard Doubtful Total Commercial, industrial, and agricultural $ 531,320 $ 14,638 $ 21,831 $ 11 $ 567,800 Commercial mortgages 551,474 1,809 21,543 0 574,826 Total $ 1,082,794 $ 16,447 $ 43,374 $ 11 $ 1,142,626 The Corporation considers the performance of the loan portfolio and its impact on the allowance for loan losses. For residential real estate, consumer, and credit card loan classes, the Corporation also evaluates credit quality based on the aging status of the loan, which was previously presented, and by payment activity. The following table presents the recorded investment in residential, consumer, and credit card loans based on payment activity as of September 30, 2017 and December 31, 2016: September 30, 2017 December 31, 2016 Residential Credit Residential Credit Real Estate Consumer Cards Real Estate Consumer Cards Performing $ 691,233 $ 77,552 $ 6,228 $ 647,283 $ 73,817 $ 6,036 Nonperforming 5,826 712 21 5,600 999 10 Total $ 697,059 $ 78,264 $ 6,249 $ 652,883 $ 74,816 $ 6,046 The Corporation’s portfolio of residential real estate and consumer loans maintained within Holiday Financial Services Corporation (“Holiday”) are considered to be subprime loans. Holiday is a subsidiary that offers small balance unsecured and secured loans, primarily collateralized by automobiles and equipment, to borrowers with higher risk characteristics than are typical in the Bank’s consumer loan portfolio. Holiday’s loan portfolio is summarized as follows at September 30, 2017 and December 31, 2016: September 30, December 31, 2017 2016 Consumer $ 22,393 $ 24,026 Residential real estate 0 1,209 Less: unearned discount (3,621 ) (3,430 ) Total $ 18,772 $ 21,805

Deposits

Deposits	9 Months Ended
	Sep. 30, 2017
Banking and Thrift [Abstract]
Deposits	6. DEPOSITS Total deposits at September 30, 2017 and December 31, 2016 are summarized as follows: Percentage September 30, December 31, Checking, non-interest 8.1 % $ 313,543 $ 289,922 Checking, interest bearing 4.7 % 569,087 543,388 Savings accounts (1.6 %) 938,342 953,438 Certificates of deposit 3.8 % 239,638 230,774 2.1 % $ 2,060,610 $ 2,017,522

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Earnings Per Share	7. EARNINGS PER SHARE Basic earnings per share is computed by dividing net income by the weighted average number of shares outstanding during the applicable period, excluding outstanding participating securities. Diluted earnings per share is computed using the weighted average number of shares determined for the basic computation plus the dilutive effect of potential common shares issuable under certain stock compensation plans. For the three and nine months ended September 30, 2017 and 2016, there were no outstanding stock options to include in the diluted earnings per share calculations. Unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and are included in the computation of earnings per share pursuant to the two-class The computation of basic and diluted earnings per share is shown below: Three months ended Nine months ended September 30, September 30, 2017 2016 2017 2016 Basic earnings per common share computation: Net income per consolidated statements of income $ 7,246 $ 6,416 $ 20,409 $ 15,500 Net earnings allocated to participating securities (40 ) (40 ) (120 ) (101 ) Net earnings allocated to common stock $ 7,206 $ 6,376 $ 20,289 $ 15,399 Distributed earnings allocated to common stock $ 2,506 $ 2,370 $ 7,521 $ 7,107 Undistributed earnings allocated to common stock 4,700 4,006 12,768 8,292 Net earnings allocated to common stock $ 7,206 $ 6,376 $ 20,289 $ 15,399 Weighted average common shares outstanding, including shares considered participating securities 15,285 14,464 15,188 14,453 Less: Average participating securities (78 ) (82 ) (84 ) (85 ) Weighted average shares 15,207 14,382 15,104 14,368 Basic earnings per common share $ 0.47 $ 0.44 $ 1.34 $ 1.07 Diluted earnings per common share computation: Net earnings allocated to common stock $ 7,206 $ 6,376 $ 20,289 $ 15,399 Weighted average shares and dilutive potential common shares 15,207 14,382 15,104 14,368 Diluted earnings per common share $ 0.47 $ 0.44 $ 1.34 $ 1.07

Derivative Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	8. DERIVATIVE INSTRUMENTS On May 3, 2011, the Corporation executed an interest rate swap agreement with a 5 year term and an effective date of September 15, 2013 in order to hedge cash flows associated with $10 million of a subordinated note that was issued by the Corporation during 2007 and elected cash flow hedge accounting for the agreement. The Corporation’s objective in using this derivative is to add stability to interest expense and to manage its exposure to interest rate risk. The interest rate swap involves the receipt of variable-rate amounts in exchange for fixed-rate payments from September 15, 2013 to September 15, 2018 without exchange of the underlying notional amount. At September 30, 2017, the variable rate on the subordinated debt was 2.87% (LIBOR plus 155 basis points) and the Corporation was paying 5.57% (4.02% fixed rate plus 155 basis points). As of September 30, 2017 and December 31, 2016, no derivatives were designated as fair value hedges or hedges of net investments in foreign operations. Additionally, the Corporation does not use derivatives for trading or speculative purposes and currently does not have any derivatives that are not designated as hedges. The following tables provide information about the amounts and locations of activity related to the interest rate swaps designated as cash flow hedges within the Corporation’s consolidated balance sheet and statement of income as of September 30, 2017 and December 31, 2016 and for the three and nine months ended September 30, 2017 and 2016: Fair value as of Balance Sheet September 30, December 31, Location 2017 2016 Interest rate contracts Accrued interest and other liabilities $ (242 ) $ (459 ) For the Three Months Ended September 30, 2017 (a) (b) (c) (d) (e) Interest rate contracts $ 46 Interest expense – ($ 71 ) Other $ 0 For the Nine Months Ended September 30, 2017 (a) (b) (c) (d) (e) Interest rate contracts $ 141 Interest expense – ($ 220 ) Other $ 0 For the Three Months Ended September 30, 2016 (a) (b) (c) (d) (e) Interest rate contracts $ 87 Interest expense – ($ 84 ) Other $ 0 For the Nine Months Ended September 30, 2016 (a) (b) (c) (d) (e) Interest rate contracts $ 92 Interest expense – ($ 260 ) Other $ 0 (a) Amount of Gain or (Loss) Recognized in Other Comprehensive Loss on Derivative (Effective Portion), net of tax (b) Location of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion) (c) Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion) (d) Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing) (e) Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing) Amounts reported in accumulated other comprehensive loss related to the interest rate swap will be reclassified to interest expense as interest payments are made on the subordinated debentures. Such amounts reclassified from accumulated other comprehensive loss to interest expense in the next twelve months are expected to be $270. As of September 30, 2017 and December 31, 2016, a cash collateral balance in the amount of $1,400 was maintained with a counterparty to the interest rate swaps. These balances are included in interest bearing deposits with other banks on the consolidated balance sheet. The Corporation has entered into certain interest rate swap contracts that are not designated as hedging instruments. These derivative contracts relate to transactions in which the Corporation enters into an interest rate swap with a customer while at the same time entering into an offsetting interest rate swap with another financial institution. In connection with each swap transaction, the Corporation agrees to pay interest to the customer on a notional amount at a variable interest rate and receive interest from the customer on a similar notional amount at a fixed interest rate. Concurrently, the Corporation agrees to pay another financial institution the same fixed interest rate on the same notional amount and receive the same variable interest rate on the same notional amount. The transaction allows the Corporation’s customers to effectively convert a variable rate loan to a fixed rate. Because the Corporation acts as an intermediary for its customer, changes in the fair value of the underlying derivative contracts offset each other and do not impact the Corporation’s results of operations. The Corporation pledged cash collateral to another financial institution with a balance $750 as of both September 30, 2017 and December 31, 2016. This balance is included in interest bearing deposits with other banks on the consolidated balance sheets. The Corporation does not require its customers to post cash or securities as collateral on its program of back-to-back The following table provides information about the amounts and locations of activity related to the back-to-back Notional Weighted Weighted Weighted Average Fair September 30, 2017 3 rd $ 14,559 8.3 4.43 % 1 month LIBOR + 2.35% $ 233 (a) Customer interest rate swaps 14,559 8.3 4.43 % 1 month LIBOR + 2.35% 233 (b) December 31, 2016 3 rd $ 14,814 9.0 4.43 % 1 month LIBOR + 2.35% $ 211 (a) Customer interest rate swaps 14,814 9.0 4.43 % 1 month LIBOR + 2.35% 211 (b) (a) Reported in accrued interest receivable and other assets within the consolidated balance sheets (b) Reported in accrued interest payable and other liabilities within the consolidated balance sheets

Common Stock Issuance

Common Stock Issuance	9 Months Ended
	Sep. 30, 2017
Text Block [Abstract]
Common Stock Issuance	9. COMMON STOCK ISSUANCE In February 2017, the Corporation completed an at-the-market

Branch Sale

Branch Sale	9 Months Ended
	Sep. 30, 2017
Supplemental Cash Flow Elements [Abstract]
Branch Sale	10. BRANCH SALE On May 19, 2017, CNB completed its previously announced sale of the Mt. Hope, Ohio branch to First Federal Community Bank. CNB transferred loans totaling $7,800, fixed assets totaling $100, and deposits totaling $7,400 in conjunction with the sale of the branch and realized a gain of $536 based on the 8% deposit premium paid by First Federal Community Bank.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2017
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	11. RECENT ACCOUNTING PRONOUNCEMENTS In August 2017, the FASB issued an update (ASU 2017-12, 2017-12 2017-12 2017-12 In May 2017, the FASB issued an update (ASU 2017-09, 2017-09 In January 2017, the FASB issued an update (ASU 2017-04, 2017-04 In August 2016, the FASB issued an update (ASU 2016-15, not-for-profit 2016-15 In June 2016, the FASB issued an update (ASU 2016-13, 2016-13 2016-13 2016-13 2016-13, In March 2016, the FASB issued Accounting Standards Update 2016-09, 2016-09 Paid-in-Capital In February 2016, the FASB issued Accounting Standards Update 2016-02, 2016-02 right-of-use 2016-02 In January 2016, the FASB issued Accounting Standards Update 2016-01, 2016-01 non-public 2016-01 In May 2014, FASB issued Accounting Standards Update 2014-09, non-interest 2014-09

Recent Accounting Pronounceme20

Recent Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 30, 2017
Accounting Changes and Error Corrections [Abstract]
Adoption of New Accounting Standards	In August 2017, the FASB issued an update (ASU 2017-12, 2017-12 2017-12 2017-12 In May 2017, the FASB issued an update (ASU 2017-09, 2017-09 In January 2017, the FASB issued an update (ASU 2017-04, 2017-04 In August 2016, the FASB issued an update (ASU 2016-15, not-for-profit 2016-15 In June 2016, the FASB issued an update (ASU 2016-13, 2016-13 2016-13 2016-13 2016-13, In March 2016, the FASB issued Accounting Standards Update 2016-09, 2016-09 Paid-in-Capital In February 2016, the FASB issued Accounting Standards Update 2016-02, 2016-02 right-of-use 2016-02 In January 2016, the FASB issued Accounting Standards Update 2016-01, 2016-01 non-public 2016-01 In May 2014, FASB issued Accounting Standards Update 2014-09, non-interest 2014-09

Stock Compensation (Tables)

Stock Compensation (Tables)	9 Months Ended
	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Changes in Nonvested Restricted Stock Awards	A summary of changes in nonvested restricted stock awards for the three months ended September 30, 2017 follows: Per Share Weighted Average Shares Grant Date Fair Value Nonvested at beginning of period 99,233 $ 20.68 Forfeited (135 ) 25.92 Vested (250 ) 18.58 Nonvested at end of period 98,848 20.68 A summary of changes in nonvested restricted stock awards for the nine months ended September 30, 2017 follows: Per Share Weighted Average Shares Grant Date Fair Value Nonvested at beginning of period 100,726 $ 17.36 Granted 38,123 25.92 Forfeited (285 ) 21.56 Vested (39,716 ) 17.29 Nonvested at end of period 98,848 $ 20.68

Fair Value (Tables)

Fair Value (Tables)	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis	Assets and liabilities measured at fair value on a recurring basis are as follows at September 30, 2017 and December 31, 2016: Fair Value Measurements at September 30, 2017 Using Quoted Prices in Significant Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Description Total (Level 1) (Level 2) (Level 3) Assets: Securities Available For Sale: U.S. Government sponsored entities $ 121,596 $ 0 $ 121,596 $ 0 States and political subdivisions 143,470 0 143,470 0 Residential and multi-family mortgage 103,253 0 103,253 0 Corporate notes and bonds 17,269 0 17,269 0 Pooled SBA 38,204 0 38,204 0 Other equity securities 969 969 0 0 Total Securities Available For Sale $ 424,761 $ 969 $ 423,792 $ 0 Interest Rate swaps $ 233 $ 0 $ 233 $ 0 Trading Securities: Corporate equity securities $ 4,095 $ 4,095 $ 0 $ 0 Mutual funds 1,371 1,371 0 0 Certificates of deposit 205 205 0 0 Corporate notes and bonds 257 257 0 0 U.S. Government sponsored entities 53 0 53 0 Total Trading Securities $ 5,981 $ 5,928 $ 53 $ 0 Liabilities, Interest rate swaps $ (475 ) $ 0 $ (475 ) $ 0 Fair Value Measurements at December 31, 2016 Using Quoted Prices in Significant Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Description Total (Level 1) (Level 2) (Level 3) Assets: Securities Available For Sale: U.S. Government sponsored entities $ 140,351 $ 0 $ 140,351 $ 0 States and political subdivisions 157,037 0 157,037 0 Residential and multi-family mortgage 134,976 0 134,976 0 Corporate notes and bonds 17,414 0 17,414 0 Pooled trust preferred 2,049 0 0 2,049 Pooled SBA 43,037 0 43,037 0 Other equity securities 971 971 0 0 Total Securities Available For Sale $ 495,835 $ 971 $ 492,815 $ 2,049 Interest Rate swaps $ 211 $ 0 $ 211 $ 0 Trading Securities: Corporate equity securities $ 3,312 $ 3,312 $ 0 $ 0 Mutual funds 1,037 1,037 0 0 Certificates of deposit 202 202 0 0 Corporate notes and bonds 254 254 0 0 U.S. Government sponsored entities 53 0 53 0 Total Trading Securities $ 4,858 $ 4,805 $ 53 $ 0 Liabilities, Interest rate swaps $ (670 ) $ 0 $ (670 ) $ 0
Securities Available for Sale Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)	The table below presents a reconciliation of the fair value of securities available for sale measured on a recurring basis using significant unobservable inputs (Level 3) for the three months ended September 30, 2017 and 2016: 2017 2016 Balance, July 1 $ 0 $ 1,702 Total gains or (losses): Included in other comprehensive income (unrealized) 0 0 Sale of available-for-sale 0 0 Balance, September 30 $ 0 $ 1,702 The table below presents a reconciliation of the fair value of securities available for sale measured on a recurring basis using significant unobservable inputs (Level 3) for the nine months ended September 30, 2017 and 2016: 2017 2016 Balance, January 1 $ 2,049 $ 3,413 Total gains or (losses): Included in other comprehensive income (unrealized) 134 (922 ) Sale of available-for-sale (2,183 ) (789 ) Balance, September 30 $ 0 $ 1,702
Quantitative Information about Level 3 Fair Value Measurements	The following table presents quantitative information about Level 3 fair value measurements at December 31, 2016: Fair Valuation Unobservable Inputs Input Utilized Pooled trust preferred $ 2,049 Discounted cash flow Collateral default rate 0.5% in 2016 and thereafter Yield (weighted average) 10% Prepayment speed 2.0% constant prepayment rate in 2016 and thereafter
Assets and Liabilities Measured at Fair Value on Non-Recurring Basis	Assets and liabilities measured at fair value on a non-recurring Fair Value Measurements at September 30, 2017 Using Quoted Prices in Significant Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Description Total (Level 1) (Level 2) (Level 3) Assets: Impaired loans: Commercial mortgages $ 11 0 0 $ 11 Fair Value Measurements at December 31, 2016 Using Quoted Prices in Significant Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Description Total (Level 1) (Level 2) (Level 3) Assets: Impaired loans: Commercial mortgages $ 2,067 0 0 $ 2,067
Quantitative Information about Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on Non Recurring Basis	The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring Fair Valuation Technique Unobservable Inputs Range Impaired loans – commercial mortgages $ 11 Discounted cash flow method Discount used in discounted cash flow method 10% (10%) The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring Fair Valuation Technique Unobservable Inputs Range Impaired loans – commercial mortgages $ 2,067 Sales comparison approach and discounted cash flow method Adjustment for differences between the comparable sales and discount used in discounted cash flow method 10% - 14% (13%)
Carrying Amount and Fair Value of Financial Instruments	The following table presents the carrying amount and fair value of financial instruments at September 30, 2017: Carrying Fair Value Measurement Using: Total Amount Level 1 Level 2 Level 3 Fair Value ASSETS Cash and cash equivalents $ 35,675 $ 35,675 $ 0 $ 0 $ 35,675 Securities available for sale 424,761 969 423,792 0 424,761 Trading securities 5,981 5,928 53 0 5,981 Loans held for sale 1,672 0 1,673 0 1,673 Net loans 2,080,725 0 0 2,056,755 2,056,755 FHLB and other equity interests 26,145 n/a n/a n/a n/a Interest rate swaps 233 0 233 0 233 Accrued interest receivable 9,378 7 3,167 6,204 9,378 LIABILITIES Deposits $ (2,060,610 ) $ (1,820,972 ) $ (237,587 ) $ 0 $ (2,058,559 ) FHLB and other borrowings (342,158 ) 0 (337,913 ) 0 (337,913 ) Subordinated debentures (70,620 ) 0 (62,923 ) 0 (62,923 ) Interest rate swaps (475 ) 0 (475 ) 0 (475 ) Accrued interest payable (279 ) 0 (279 ) 0 (279 ) The following table presents the carrying amount and fair value of financial instruments at December 31, 2016: Carrying Fair Value Measurement Using: Total Amount Level 1 Level 2 Level 3 Fair Value ASSETS Cash and cash equivalents $ 29,183 $ 29,183 $ 0 $ 0 $ 29,183 Securities available for sale 495,835 971 492,815 2,049 495,835 Trading securities 4,858 4,805 53 0 4,858 Loans held for sale 7,528 0 7,553 0 7,553 Net loans 1,857,206 0 0 1,817,341 1,817,341 FHLB and other equity interests 19,186 n/a n/a n/a n/a Interest rate swaps 211 0 211 0 211 Accrued interest receivable 8,264 6 3,014 5,244 8,264 LIABILITIES Deposits $ (2,017,522 ) $ (1,786,748 ) $ (219,765 ) $ 0 (2,006,513 ) FHLB and other borrowings (237,004 ) 0 (226,769 ) 0 (226,769 ) Subordinated debentures (70,620 ) 0 (61,831 ) 0 (61,831 ) Deposits held for sale (6,456 ) 0 (6,417 ) 0 (6,417 ) Interest rate swaps (670 ) 0 (670 ) 0 (670 ) Accrued interest payable (510 ) 0 (510 ) 0 (510 )

Securities (Tables)

Securities (Tables)	9 Months Ended
	Sep. 30, 2017
Cash and Cash Equivalents [Abstract]
Securities Available for Sale	Securities available for sale at September 30, 2017 and December 31, 2016 are as follows: September 30, 2017 December 31, 2016 Amortized Unrealized Fair Amortized Unrealized Fair Cost Gains Losses Value Cost Gains Losses Value U.S. Gov’t sponsored entities $ 121,022 $ 780 $ (206 ) $ 121,596 $ 139,823 $ 1,107 $ (579 ) $ 140,351 State & political subdivisions 138,825 4,911 (266 ) 143,470 153,492 4,194 (649 ) 157,037 Residential & multi-family mortgage 103,962 485 (1,194 ) 103,253 136,807 551 (2,382 ) 134,976 Corporate notes & bonds 17,610 85 (426 ) 17,269 18,299 77 (962 ) 17,414 Pooled trust preferred 0 0 0 0 800 1,249 0 2,049 Pooled SBA 38,417 406 (619 ) 38,204 43,450 505 (918 ) 43,037 Other equity securities 1,020 0 (51 ) 969 1,020 0 (49 ) 971 Total $ 420,856 $ 6,667 $ (2,762 ) $ 424,761 $ 493,691 $ 7,683 $ (5,539 ) $ 495,835
Trading Securities	Trading securities at September 30, 2017 and December 31, 2016 are as follows: September 30, December 31, Corporate equity securities $ 4,095 $ 3,312 Mutual funds 1,371 1,037 Certificates of deposit 205 202 Corporate notes and bonds 257 254 U.S. Government sponsored entities 53 53 Total $ 5,981 $ 4,858
Securities with Unrealized Losses Aggregated by Investment Category and Length of Time that Individual Securities have been in Continuous Unrealized Loss Position	Securities with unrealized losses at September 30, 2017 and December 31, 2016, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are as follows: September 30, 2017 Less than 12 Months 12 Months or More Total Description of Securities Fair Unrealized Fair Unrealized Fair Unrealized U.S. Gov’t sponsored entities $ 50,112 $ (204 ) $ 3,398 $ (2 ) $ 53,510 $ (206 ) State & political subdivisions 3,562 (50 ) 1,524 (216 ) 5,086 (266 ) Residential & multi-family mortgage 33,692 (259 ) 44,212 (935 ) 77,904 (1,194 ) Corporate notes & bonds 0 (0 ) 9,068 (426 ) 9,068 (426 ) Pooled SBA 4,671 (67 ) 18,780 (552 ) 23,451 (619 ) Other equity securities 0 (0 ) 969 (51 ) 969 (51 ) $ 92,037 $ (580 ) $ 77,951 $ (2,182 ) $ 169,988 $ (2,762 ) December 31, 2016 Less than 12 Months 12 Months or More Total Fair Unrealized Fair Unrealized Fair Unrealized U.S. Gov’t sponsored entities $ 90,380 $ (579 ) $ 0 $ (0 ) $ 90,380 $ (579 ) State & political subdivisions 32,353 (448 ) 264 (201 ) 32,617 (649 ) Residential and multi-family mortgage 65,598 (1,255 ) 34,611 (1,127 ) 100,209 (2,382 ) Corporate notes & bonds 2,089 (11 ) 8,476 (951 ) 10,565 (962 ) Pooled SBA 6,481 (126 ) 20,560 (792 ) 27,041 (918 ) Other equity securities 0 (0 ) 971 (49 ) 971 (49 ) $ 196,901 $ (2,419 ) $ 64,882 $ (3,120 ) $ 261,783 $ (5,539 )
Roll-Forward of Other-Than-Temporary Impairment Amount Related to Credit Losses	A roll-forward of the other-than-temporary impairment amount related to credit losses for the three and nine months ended September 30, 2017 and 2016 is as follows: Three months ended Nine months ended 2017 2016 2017 2016 Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, beginning of period $ 0 $ 2,071 $ 2,071 $ 4,054 Credit losses previously recognized on securities sold during the period 0 0 (2,071 ) (1,983 ) Additional credit loss for which other-than-temporary impairment was not previously recognized 0 0 0 0 Additional credit loss for which other-than-temporary impairment was previously recognized 0 0 0 0 Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, end of period $ 0 $ 2,071 $ 0 $ 2,071
Information Pertaining to Security Sales	Information pertaining to security sales on available for sale securities is as follows: Proceeds Gross Gross Three months ended September 30, 2017 $ 7,757 $ 76 ($ 71 ) Three months ended September 30, 2016 $ 0 $ 0 $ 0 Nine months ended September 30, 2017 $ 15,374 $ 1,614 ($ 71 ) Nine months ended September 30, 2016 $ 4,420 $ 1,005 $ 0
Schedule of Contractual Maturity of Securities Available for Sale, Excluding Equity Securities	The following is a schedule of the contractual maturity of securities available for sale, excluding equity securities, at September 30, 2017: Amortized Fair Cost Value 1 year or less $ 49,501 $ 49,346 1 year – 5 years 164,006 167,361 5 years – 10 years 57,416 59,157 After 10 years 6,534 6,471 277,457 282,335 Residential and multi-family mortgage 103,962 103,253 Pooled SBA 38,417 38,204 Total debt securities $ 419,836 $ 423,792

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2017
Receivables [Abstract]
Schedule of Net Loans	Total net loans at September 30, 2017 and December 31, 2016 are summarized as follows: September 30, December 31, Commercial, industrial, and agricultural $ 663,944 $ 567,800 Commercial mortgages 656,130 574,826 Residential real estate 697,059 652,883 Consumer 78,264 74,816 Credit cards 6,249 6,046 Overdrafts 549 595 Less: unearned discount (3,621 ) (3,430 ) allowance for loan losses (17,849 ) (16,330 ) Loans, net $ 2,080,725 $ 1,857,206
Allowance for Loan Losses	Transactions in the allowance for loan losses for the three months ended September 30, 2017 were as follows: Commercial, Residential Industrial, and Commercial Real Credit Agricultural Mortgages Estate Consumer Cards Overdrafts Total Allowance for loan losses, July 1, 2017 $ 5,563 $ 7,641 $ 1,670 $ 2,068 $ 142 $ 185 $ 17,269 Charge-offs (20 ) (22 ) (130 ) (703 ) (39 ) (63 ) (977 ) Recoveries 36 3 0 96 8 14 157 Provision (benefit) for loan losses (223 ) 472 468 627 0 56 1,400 Allowance for loan losses, September 30, 2017 $ 5,356 $ 8,094 $ 2,008 $ 2,088 $ 111 $ 192 $ 17,849 Transactions in the allowance for loan losses for the nine months ended September 30, 2017 were as follows: Commercial, Residential Industrial, and Commercial Real Credit Agricultural Mortgages Estate Consumer Cards Overdrafts Total Allowance for loan losses, January 1, 2017 $ 5,428 $ 6,753 $ 1,653 $ 2,215 $ 93 $ 188 $ 16,330 Charge-offs (50 ) (22 ) (328 ) (1,969 ) (111 ) (192 ) (2,672 ) Recoveries 167 197 73 110 23 71 641 Provision (benefit) for loan losses (189 ) 1,166 610 1,732 106 125 3,550 Allowance for loan losses, September 30, 2017 $ 5,356 $ 8,094 $ 2,008 $ 2,088 $ 111 $ 192 $ 17,849 Transactions in the allowance for loan losses for the three months ended September 30, 2016 were as follows: Commercial, Residential Industrial, and Commercial Real Credit Agricultural Mortgages Estate Consumer Cards Overdrafts Total Allowance for loan losses, July 1, 2016 $ 5,218 $ 6,207 $ 2,299 $ 2,066 $ 50 $ 148 $ 15,988 Charge-offs (86 ) 0 (95 ) (709 ) (17 ) (86 ) (993 ) Recoveries 37 2 10 20 3 14 86 Provision (benefit) for loan losses (24 ) 27 (65 ) 545 36 103 622 Allowance for loan losses, September 30, 2016 $ 5,145 $ 6,236 $ 2,149 $ 1,922 $ 72 $ 179 $ 15,703 Transactions in the allowance for loan losses for the nine months ended September 30, 2016 were as follows: Commercial, Residential Industrial, and Commercial Real Credit Agricultural Mortgages Estate Consumer Cards Overdrafts Total Allowance for loan losses, January 1, 2016 $ 6,035 $ 5,605 $ 2,475 $ 2,371 $ 90 $ 161 $ 16,737 Charge-offs (519 ) (20 ) (244 ) (2,397 ) (54 ) (167 ) (3,401 ) Recoveries 84 7 72 94 18 54 329 Provision (benefit) for loan losses (455 ) 644 (154 ) 1,854 18 131 2,038 Allowance for loan losses, September 30, 2016 $ 5,145 $ 6,236 $ 2,149 $ 1,922 $ 72 $ 179 $ 15,703
Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment	The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and is based on the Corporation’s impairment method as of September 30, 2017 and December 31, 2016. The recorded investment in loans excludes accrued interest and unearned discounts due to their insignificance. September 30, 2017 Commercial, Commercial Residential Consumer Credit Overdrafts Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 Collectively evaluated for impairment 5,236 4,186 2,008 2,088 111 192 13,821 Acquired with deteriorated credit quality 0 0 0 0 0 0 0 Modified in a troubled debt restructuring 120 3,908 0 0 0 0 4,028 Total ending allowance balance $ 5,356 $ 8,094 $ 2,008 $ 2,088 $ 111 $ 192 $ 17,849 Loans: Individually evaluated for impairment $ 602 $ 51 $ 0 $ 0 $ 0 $ 0 $ 653 Collectively evaluated for impairment 660,461 639,965 697,059 78,264 6,249 549 2,082,547 Acquired with deteriorated credit quality 0 1,487 0 0 0 0 1,487 Modified in a troubled debt restructuring 2,881 14,627 0 0 0 0 17,508 Total ending loans balance $ 663,944 $ 656,130 $ 697,059 $ 78,264 $ 6,249 $ 549 $ 2,102,195 December 31, 2016 Commercial, Commercial Residential Consumer Credit Overdrafts Total Allowance for loan losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 188 $ 996 $ 0 $ 0 $ 0 $ 0 $ 1,184 Collectively evaluated for impairment 5,115 3,543 1,653 2,215 93 188 12,807 Acquired with deteriorated credit quality 0 0 0 0 0 0 0 Modified in a troubled debt restructuring 125 2,214 0 0 0 0 2,339 Total ending allowance balance $ 5,428 $ 6,753 $ 1,653 $ 2,215 $ 93 $ 188 $ 16,330 Loans: Individually evaluated for impairment $ 775 $ 6,176 $ 0 $ 0 $ 0 $ 0 $ 6,951 Collectively evaluated for impairment 564,180 557,932 652,883 74,816 6,046 595 1,856,452 Acquired with deteriorated credit quality 205 1,527 0 0 0 0 1,732 Modified in a troubled debt restructuring 2,640 9,191 0 0 0 0 11,831 Total ending loans balance $ 567,800 $ 574,826 $ 652,883 $ 74,816 $ 6,046 $ 595 $ 1,876,966
Loans Individually Evaluated for Impairment Including Loans Modified in Troubled Debt Restructurings by Portfolio Segment	The following tables present information related to loans individually evaluated for impairment, including loans modified in troubled debt restructurings, by portfolio segment as of September 30, 2017 and December 31, 2016 and for the three and nine months ended September 30, 2017 and 2016: September 30, 2017 Unpaid Principal Recorded Allowance for Loan With an allowance recorded: Commercial, industrial, and agricultural $ 1,212 $ 1,213 $ 120 Commercial mortgage 9,995 9,611 3,908 Residential real estate 0 0 0 With no related allowance recorded: Commercial, industrial, and agricultural 3,089 2,270 0 Commercial mortgage 5,836 5,067 0 Residential real estate 0 0 0 Total $ 20,132 $ 18,161 $ 4,028 December 31, 2016 Unpaid Principal Recorded Allowance for Loan With an allowance recorded: Commercial, industrial, and agricultural $ 1,644 $ 1,644 $ 313 Commercial mortgage 16,200 15,367 3,210 Residential real estate 0 0 0 With no related allowance recorded: Commercial, industrial, and agricultural 2,669 1,771 0 Commercial mortgage 0 0 0 Residential real estate 0 0 0 Total $ 20,513 $ 18,782 $ 3,523
Impaired Financing Receivables with Related and not Related Allowances	The unpaid principal balance of impaired loans includes the Corporation’s recorded investment in the loan and amounts that have been charged off. Three Months Ended September 30, 2017 Three Months Ended September 30, 2016 Average Interest Cash Basis Average Interest Cash Basis Recorded Income Interest Recorded Income Interest Investment Recognized Recognized Investment Recognized Recognized With an allowance recorded: Commercial, industrial, and agricultural $ 1,190 $ 20 $ 20 $ 2,340 $ 34 $ 34 Commercial mortgage 9,724 77 77 7,253 57 57 Residential real estate 0 0 0 0 0 0 With no related allowance recorded: Commercial, industrial, and agricultural 2,142 23 23 2,148 24 24 Commercial mortgage 4,981 33 33 2,214 17 17 Residential real estate 0 0 0 0 0 0 Total $ 18,037 $ 153 $ 153 $ 13,955 $ 132 $ 132 Nine Months Ended September 30, 2017 Nine Months Ended September 30, 2016 Average Interest Cash Basis Average Interest Cash Basis Recorded Income Interest Recorded Income Interest Investment Recognized Recognized Investment Recognized Recognized With an allowance recorded: Commercial, industrial, and agricultural $ 1,413 $ 56 $ 56 $ 2,859 $ 36 $ 36 Commercial mortgage 12,497 293 293 6,331 61 61 Residential real estate 0 0 0 83 6 6 With no related allowance recorded: Commercial, industrial, and agricultural 1,927 73 73 2,420 26 26 Commercial mortgage 2,490 100 100 3,467 20 20 Residential real estate 0 0 0 0 0 0 Total $ 18,327 $ 522 $ 522 $ 15,160 $ 149 $ 149
Nonaccrual Loans and Loans Past Due over 90 Days Still Accruing Interest by Class of Loans	The following table presents the recorded investment in nonaccrual loans and loans past due over 90 days still accruing interest by class of loans as of September 30, 2017 and December 31, 2016: September 30, 2017 December 31, 2016 Nonaccrual Past Due Nonaccrual Past Due Commercial, industrial, and agricultural $ 1,885 $ 408 $ 2,734 $ 0 Commercial mortgages 11,526 0 5,996 0 Residential real estate 5,663 163 5,600 0 Consumer 712 0 999 0 Credit cards 0 21 0 10 Total $ 19,786 $ 592 $ 15,329 $ 10
Aging of Recorded Investment in Past Due Loans	The following table presents the aging of the recorded investment in past due loans as of September 30, 2017 and December 31, 2016 by class of loans. September 30, 2017 30-59 Days 60-89 Days Greater Than Total Loans Not Total Commercial, industrial, and agricultural $ 1,827 $ 486 $ 947 $ 3,260 $ 660,684 $ 663,944 Commercial mortgages 0 40 704 744 655,386 656,130 Residential real estate 1,688 1,932 4,647 8,267 688,792 697,059 Consumer 484 305 677 1,466 76,798 78,264 Credit cards 63 36 21 120 6,129 6,249 Overdrafts 0 0 0 0 549 549 Total $ 4,062 $ 2,799 $ 6,996 $ 13,857 $ 2,088,338 $ 2,102,195 December 31, 2016 30-59 Days 60-89 Days Greater Than Total Loans Not Total Commercial, industrial, and agricultural $ 1,558 $ 299 $ 1,294 $ 3,151 $ 564,649 $ 567,800 Commercial mortgages 559 0 1,516 2,075 572,751 574,826 Residential real estate 2,155 737 3,710 6,602 646,281 652,883 Consumer 648 890 974 2,512 72,304 74,816 Credit cards 105 0 10 115 5,931 6,046 Overdrafts 0 0 0 0 595 595 Total $ 5,025 $ 1,926 $ 7,504 $ 14,455 $ 1,862,511 $ 1,876,966
Restructured in Troubled Debt	The following table presents the number of loans, loan balances, and specific reserves for loans that have been restructured in a troubled debt restructuring as of September 30, 2017 and December 31, 2016. September 30, 2017 December 31, 2016 Number of Loan Specific Number of Loan Specific Commercial, industrial, and agricultural 8 $ 2,881 $ 120 7 $ 2,640 $ 125 Commercial mortgages 10 14,627 3,908 8 9,191 2,214 Residential real estate 0 0 0 0 0 0 Consumer 0 0 0 0 0 0 Credit cards 0 0 0 0 0 0 Total 18 $ 17,508 $ 4,028 15 $ 11,831 $ 2,339
Loans by Class Modified as Troubled Debt Restructurings	The following tables present loans by class modified as troubled debt restructurings that occurred during the nine months ended September 30, 2017. Nine Months Ended September 30, 2017 Number of Pre-Modification Post-Modification Commercial, industrial, and agricultural 2 $ 324 $ 379 Commercial mortgages 2 6,227 6,276 Residential real estate 0 0 0 Consumer 0 0 0 Credit cards 0 0 0 Total 4 $ 6,551 $ 6,655
Schedule of Loan Assigned Risk Rating within 12 Months of Balance Sheet Date	All loans included in the following tables have been assigned a risk rating within 12 months of the balance sheet date. September 30, 2017 Pass Special Substandard Doubtful Total Commercial, industrial, and agricultural $ 631,550 $ 9,312 $ 23,082 $ 0 $ 663,944 Commercial mortgages 636,522 3,129 16,479 0 656,130 Total $ 1,268,072 $ 12,441 $ 39,561 $ 0 $ 1,320,074 December 31, 2016 Pass Special Substandard Doubtful Total Commercial, industrial, and agricultural $ 531,320 $ 14,638 $ 21,831 $ 11 $ 567,800 Commercial mortgages 551,474 1,809 21,543 0 574,826 Total $ 1,082,794 $ 16,447 $ 43,374 $ 11 $ 1,142,626
Recorded Investment in Residential, Consumer and Credit Card Loans Based on Payment Activity	The following table presents the recorded investment in residential, consumer, and credit card loans based on payment activity as of September 30, 2017 and December 31, 2016: September 30, 2017 December 31, 2016 Residential Credit Residential Credit Real Estate Consumer Cards Real Estate Consumer Cards Performing $ 691,233 $ 77,552 $ 6,228 $ 647,283 $ 73,817 $ 6,036 Nonperforming 5,826 712 21 5,600 999 10 Total $ 697,059 $ 78,264 $ 6,249 $ 652,883 $ 74,816 $ 6,046
Summary of Holiday's Loan Portfolio	Holiday’s loan portfolio is summarized as follows at September 30, 2017 and December 31, 2016: September 30, December 31, 2017 2016 Consumer $ 22,393 $ 24,026 Residential real estate 0 1,209 Less: unearned discount (3,621 ) (3,430 ) Total $ 18,772 $ 21,805

Deposits (Tables)

Deposits (Tables)	9 Months Ended
	Sep. 30, 2017
Banking and Thrift [Abstract]
Total Deposits	Total deposits at September 30, 2017 and December 31, 2016 are summarized as follows: Percentage September 30, December 31, Checking, non-interest 8.1 % $ 313,543 $ 289,922 Checking, interest bearing 4.7 % 569,087 543,388 Savings accounts (1.6 %) 938,342 953,438 Certificates of deposit 3.8 % 239,638 230,774 2.1 % $ 2,060,610 $ 2,017,522

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The computation of basic and diluted earnings per share is shown below: Three months ended Nine months ended September 30, September 30, 2017 2016 2017 2016 Basic earnings per common share computation: Net income per consolidated statements of income $ 7,246 $ 6,416 $ 20,409 $ 15,500 Net earnings allocated to participating securities (40 ) (40 ) (120 ) (101 ) Net earnings allocated to common stock $ 7,206 $ 6,376 $ 20,289 $ 15,399 Distributed earnings allocated to common stock $ 2,506 $ 2,370 $ 7,521 $ 7,107 Undistributed earnings allocated to common stock 4,700 4,006 12,768 8,292 Net earnings allocated to common stock $ 7,206 $ 6,376 $ 20,289 $ 15,399 Weighted average common shares outstanding, including shares considered participating securities 15,285 14,464 15,188 14,453 Less: Average participating securities (78 ) (82 ) (84 ) (85 ) Weighted average shares 15,207 14,382 15,104 14,368 Basic earnings per common share $ 0.47 $ 0.44 $ 1.34 $ 1.07 Diluted earnings per common share computation: Net earnings allocated to common stock $ 7,206 $ 6,376 $ 20,289 $ 15,399 Weighted average shares and dilutive potential common shares 15,207 14,382 15,104 14,368 Diluted earnings per common share $ 0.47 $ 0.44 $ 1.34 $ 1.07

Derivative Instruments (Tables)

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Amounts and Locations of Activity Related to Interest Rate Swaps Designated as Cash Flow Hedges within Corporation's Consolidated Balance Sheet and Statement of Income	The following tables provide information about the amounts and locations of activity related to the interest rate swaps designated as cash flow hedges within the Corporation’s consolidated balance sheet and statement of income as of September 30, 2017 and December 31, 2016 and for the three and nine months ended September 30, 2017 and 2016: Fair value as of Balance Sheet September 30, December 31, Location 2017 2016 Interest rate contracts Accrued interest and other liabilities $ (242 ) $ (459 ) For the Three Months Ended September 30, 2017 (a) (b) (c) (d) (e) Interest rate contracts $ 46 Interest expense – ($ 71 ) Other $ 0 For the Nine Months Ended September 30, 2017 (a) (b) (c) (d) (e) Interest rate contracts $ 141 Interest expense – ($ 220 ) Other $ 0 For the Three Months Ended September 30, 2016 (a) (b) (c) (d) (e) Interest rate contracts $ 87 Interest expense – ($ 84 ) Other $ 0 For the Nine Months Ended September 30, 2016 (a) (b) (c) (d) (e) Interest rate contracts $ 92 Interest expense – ($ 260 ) Other $ 0 (a) Amount of Gain or (Loss) Recognized in Other Comprehensive Loss on Derivative (Effective Portion), net of tax (b) Location of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion) (c) Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion) (d) Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing) (e) Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Amounts and Locations of Activity Related to Back-to-Back Interest Rate Swaps within Corporation's Consolidated Balance Sheet	The following table provides information about the amounts and locations of activity related to the back-to-back Notional Weighted Weighted Weighted Average Fair September 30, 2017 3 rd $ 14,559 8.3 4.43 % 1 month LIBOR + 2.35% $ 233 (a) Customer interest rate swaps 14,559 8.3 4.43 % 1 month LIBOR + 2.35% 233 (b) December 31, 2016 3 rd $ 14,814 9.0 4.43 % 1 month LIBOR + 2.35% $ 211 (a) Customer interest rate swaps 14,814 9.0 4.43 % 1 month LIBOR + 2.35% 211 (b) (a) Reported in accrued interest receivable and other assets within the consolidated balance sheets (b) Reported in accrued interest payable and other liabilities within the consolidated balance sheets

Stock Compensation - Additional

Stock Compensation - Additional Information (Detail) - USD ($)	Feb. 14, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of nonqualified options or restricted stock for key employees and independent director		500,000		500,000
Description of award terms				For key employees, the plan vesting is one-fourth of the granted options or restricted stock per year beginning one year after the grant date, with 100% vested on the fourth anniversary of the grant date. For independent directors, the vesting schedule is one-third of the granted options or restricted stock per year beginning one year after the grant date, with 100% vested on the third anniversary of the grant date
Unrecognized compensation cost related to nonvested stock options granted		$ 0		$ 0
Shares, granted		0	0	0	0
Compensation expense restricted stock awards		$ 204,000	$ 216,000	$ 600,000	$ 628,000
Fair value of shares vesting during period		6,000	$ 3,000	929,000	$ 559,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to nonvested restricted stock		$ 1,578,000		$ 1,578,000
Performance Based Restricted Stock Awards [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, granted	10,000
Independent Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Starting period of vesting of stock based award				1 year
Aggregate percentage of stock based awards to be matured				100.00%
Stock incentive plan, vesting per year				33.33%
Award vesting period				3 years
Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Starting period of vesting of stock based award				1 year
Aggregate percentage of stock based awards to be matured				100.00%
Stock incentive plan, vesting per year				25.00%
Award vesting period				4 years

Stock Compensation - Summary of

Stock Compensation - Summary of Changes in Nonvested Restricted Stock Awards (Detail) - $ / shares	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Nonvested at beginning of period, Shares	99,233	100,726
Granted, Shares		38,123
Forfeited, Shares	(135)	(285)
Vested, Shares	(250)	(39,716)
Nonvested at end of period, Shares	98,848	98,848
Nonvested at beginning of period, Weighted-average Grant Date Fair Value	$ 20.68	$ 17.36
Granted, Weighted-average Grant Date Fair Value		25.92
Forfeited , Weighted-average Grant Date Fair Value	25.92	21.56
Vested, Weighted-average Grant Date Fair Value	18.58	17.29
Nonvested at end of period, Weighted-average Grant Date Fair Value	$ 20.68	$ 20.68

Fair Value - Assets and Liabili

Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Securities Available For Sale:
Securities available for sale	$ 424,761	$ 495,835
Trading Securities:
Trading securities	5,981	4,858
Certificates of Deposit [Member]
Trading Securities:
Trading securities	205	202
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities Available For Sale:
Securities available for sale	969	971
Interest Rate swaps	0	0
Trading Securities:
Trading securities	5,928	4,805
Liabilities
Interest rate swaps	0	0
Significant Other Observable Inputs (Level 2) [Member]
Securities Available For Sale:
Securities available for sale	423,792	492,815
Interest Rate swaps	233	211
Trading Securities:
Trading securities	53	53
Liabilities
Interest rate swaps	(475)	(670)
Significant Unobservable Inputs (Level 3) [Member]
Securities Available For Sale:
Securities available for sale	0	2,049
Interest Rate swaps	0	0
Trading Securities:
Trading securities	0	0
Liabilities
Interest rate swaps	0	0
Fair Value Measurement on Recurring Basis [Member]
Securities Available For Sale:
Securities available for sale	424,761	495,835
Interest Rate swaps	233	211
Trading Securities:
Trading securities	5,981	4,858
Liabilities
Interest rate swaps	(475)	(670)
Fair Value Measurement on Recurring Basis [Member] | U.S. Government Sponsored Entities [Member]
Securities Available For Sale:
Securities available for sale	121,596	140,351
Trading Securities:
Trading securities	53	53
Fair Value Measurement on Recurring Basis [Member] | States and Political Subdivisions [Member]
Securities Available For Sale:
Securities available for sale	143,470	157,037
Fair Value Measurement on Recurring Basis [Member] | Residential and Multi-Family Mortgage [Member]
Securities Available For Sale:
Securities available for sale	103,253	134,976
Fair Value Measurement on Recurring Basis [Member] | Corporate Notes and Bonds [Member]
Securities Available For Sale:
Securities available for sale	17,269	17,414
Trading Securities:
Trading securities	257	254
Fair Value Measurement on Recurring Basis [Member] | Pooled Trust Preferred [Member]
Securities Available For Sale:
Securities available for sale		2,049
Fair Value Measurement on Recurring Basis [Member] | Pooled SBA [Member]
Securities Available For Sale:
Securities available for sale	38,204	43,037
Fair Value Measurement on Recurring Basis [Member] | Other Equity Securities [Member]
Securities Available For Sale:
Securities available for sale	969	971
Fair Value Measurement on Recurring Basis [Member] | Corporate Equity Securities [Member]
Trading Securities:
Trading securities	4,095	3,312
Fair Value Measurement on Recurring Basis [Member] | Mutual Funds [Member]
Trading Securities:
Trading securities	1,371	1,037
Fair Value Measurement on Recurring Basis [Member] | Certificates of Deposit [Member]
Trading Securities:
Trading securities	205	202
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities Available For Sale:
Securities available for sale	969	971
Interest Rate swaps	0	0
Trading Securities:
Trading securities	5,928	4,805
Liabilities
Interest rate swaps	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Government Sponsored Entities [Member]
Securities Available For Sale:
Securities available for sale	0	0
Trading Securities:
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | States and Political Subdivisions [Member]
Securities Available For Sale:
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Residential and Multi-Family Mortgage [Member]
Securities Available For Sale:
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate Notes and Bonds [Member]
Securities Available For Sale:
Securities available for sale	0	0
Trading Securities:
Trading securities	257	254
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Pooled Trust Preferred [Member]
Securities Available For Sale:
Securities available for sale		0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Pooled SBA [Member]
Securities Available For Sale:
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Other Equity Securities [Member]
Securities Available For Sale:
Securities available for sale	969	971
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate Equity Securities [Member]
Trading Securities:
Trading securities	4,095	3,312
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Mutual Funds [Member]
Trading Securities:
Trading securities	1,371	1,037
Fair Value Measurement on Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Certificates of Deposit [Member]
Trading Securities:
Trading securities	205	202
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Securities Available For Sale:
Securities available for sale	423,792	492,815
Interest Rate swaps	233	211
Trading Securities:
Trading securities	53	53
Liabilities
Interest rate swaps	(475)	(670)
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Sponsored Entities [Member]
Securities Available For Sale:
Securities available for sale	121,596	140,351
Trading Securities:
Trading securities	53	53
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | States and Political Subdivisions [Member]
Securities Available For Sale:
Securities available for sale	143,470	157,037
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Residential and Multi-Family Mortgage [Member]
Securities Available For Sale:
Securities available for sale	103,253	134,976
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate Notes and Bonds [Member]
Securities Available For Sale:
Securities available for sale	17,269	17,414
Trading Securities:
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Pooled Trust Preferred [Member]
Securities Available For Sale:
Securities available for sale		0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Pooled SBA [Member]
Securities Available For Sale:
Securities available for sale	38,204	43,037
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Equity Securities [Member]
Securities Available For Sale:
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate Equity Securities [Member]
Trading Securities:
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mutual Funds [Member]
Trading Securities:
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Certificates of Deposit [Member]
Trading Securities:
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Securities Available For Sale:
Securities available for sale	0	2,049
Interest Rate swaps	0	0
Trading Securities:
Trading securities	0	0
Liabilities
Interest rate swaps	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. Government Sponsored Entities [Member]
Securities Available For Sale:
Securities available for sale	0	0
Trading Securities:
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | States and Political Subdivisions [Member]
Securities Available For Sale:
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Residential and Multi-Family Mortgage [Member]
Securities Available For Sale:
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Corporate Notes and Bonds [Member]
Securities Available For Sale:
Securities available for sale	0	0
Trading Securities:
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Pooled Trust Preferred [Member]
Securities Available For Sale:
Securities available for sale		2,049
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Pooled SBA [Member]
Securities Available For Sale:
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other Equity Securities [Member]
Securities Available For Sale:
Securities available for sale	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Corporate Equity Securities [Member]
Trading Securities:
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Mutual Funds [Member]
Trading Securities:
Trading securities	0	0
Fair Value Measurement on Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Certificates of Deposit [Member]
Trading Securities:
Trading securities	$ 0	$ 0

Fair Value - Securities Availab

Fair Value - Securities Available for Sale Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Beginning Balance	$ 0	$ 1,702	$ 2,049	$ 3,413
Total gains or (losses):
Included in other comprehensive income (unrealized)	0	0	134	(922)
Sale of available-for-sale securities	0	0	(2,183)	(789)
Ending Balance	$ 0	$ 1,702	$ 0	$ 1,702

Fair Value - Quantitative Infor

Fair Value - Quantitative Information About Level 3 Fair Value Measurements (Detail) - Pooled Trust Preferred [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 2,049
Collateral Default Rate [Member] | Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Input utilized two	0.5% in 2016 and thereafter
Yield (Weighted Average) [Member] | Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Input utilized one	10.00%
Prepayment Speed [Member] | Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Input utilized two	2.0% constant prepayment rate in 2016 and thereafter

Fair Value - Assets and Liabi33

Fair Value - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Detail) - Commercial Mortgages [Member] - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Impaired loans:
Fair value assets and liabilities measured on a nonrecurring basis	$ 11	$ 2,067
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Impaired loans:
Fair value assets and liabilities measured on a nonrecurring basis	0	0
Significant Other Observable Inputs (Level 2) [Member]
Impaired loans:
Fair value assets and liabilities measured on a nonrecurring basis	0	0
Significant Unobservable Inputs (Level 3) [Member]
Impaired loans:
Fair value assets and liabilities measured on a nonrecurring basis	$ 11	$ 2,067

Fair Value - Additional Informa

Fair Value - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans, recorded investment	$ 18,161		$ 18,161		$ 18,782
Impaired loans allowance	4,028		4,028		3,523
Collateral Dependent Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans, recorded investment	668		668		3,120
Impaired loans allowance	657		657		$ 1,053
Impaired loans, additional negative provisions	$ (22)	$ (95)	$ (395)	$ (42)

Fair Value - Quantitative Inf35

Fair Value - Quantitative Information about Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on Non Recurring Basis (Detail) - Impaired Loans - Commercial Mortgages [Member] - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 11
Discounted cash flow method	10.00%
Sales Comparison Approach and Discounted Cash Flow Method [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 2,067
Weighted Average [Member] | Discounted Cash Flow [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discounted cash flow method	10.00%
Weighted Average [Member] | Sales Comparison Approach and Discounted Cash Flow Method [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Sales comparison approach and discounted cash flow method		13.00%
Minimum [Member] | Sales Comparison Approach and Discounted Cash Flow Method [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Sales comparison approach and discounted cash flow method		10.00%
Maximum [Member] | Sales Comparison Approach and Discounted Cash Flow Method [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Sales comparison approach and discounted cash flow method		14.00%

Fair Value - Carrying Amount an

Fair Value - Carrying Amount and Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
ASSETS
Cash and cash equivalents	$ 35,675	$ 29,183	$ 36,904	$ 27,261
Securities available for sale	424,761	495,835
Trading securities	5,981	4,858
Loans held for sale	1,672	7,528
Net loans	2,080,725	1,857,206
FHLB and other equity interests	26,145	19,186
Liabilities
Deposits	(2,060,610)	(2,017,522)
Subordinated debentures	(70,620)	(70,620)
Deposits held for sale	0	(6,456)
Carrying Amount [Member]
ASSETS
Cash and cash equivalents	35,675	29,183
Securities available for sale	424,761	495,835
Trading securities	5,981	4,858
Loans held for sale	1,672	7,528
Net loans	2,080,725	1,857,206
FHLB and other equity interests	26,145	19,186
Interest Rate swaps	233	211
Accrued interest receivable	9,378	8,264
Liabilities
Deposits	(2,060,610)	(2,017,522)
FHLB and other borrowings	(342,158)	(237,004)
Subordinated debentures	(70,620)	(70,620)
Deposits held for sale		(6,456)
Interest rate swaps	(475)	(670)
Accrued interest payable	(279)	(510)
Total Fair Value [Member]
ASSETS
Cash and cash equivalents	35,675	29,183
Securities available for sale	424,761	495,835
Trading securities	5,981	4,858
Loans held for sale	1,673	7,553
Net loans	2,056,755	1,817,341
Interest Rate swaps	233	211
Accrued interest receivable	9,378	8,264
Liabilities
Deposits	(2,058,559)	(2,006,513)
FHLB and other borrowings	(337,913)	(226,769)
Subordinated debentures	(62,923)	(61,831)
Deposits held for sale		(6,417)
Interest rate swaps	(475)	(670)
Accrued interest payable	(279)	(510)
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
ASSETS
Cash and cash equivalents	35,675	29,183
Securities available for sale	969	971
Trading securities	5,928	4,805
Loans held for sale	0	0
Net loans	0	0
Interest Rate swaps	0	0
Accrued interest receivable	7	6
Liabilities
Deposits	(1,820,972)	(1,786,748)
FHLB and other borrowings	0	0
Subordinated debentures	0	0
Deposits held for sale		0
Interest rate swaps	0	0
Accrued interest payable	0	0
Significant Other Observable Inputs (Level 2) [Member]
ASSETS
Cash and cash equivalents	0	0
Securities available for sale	423,792	492,815
Trading securities	53	53
Loans held for sale	1,673	7,553
Net loans	0	0
Interest Rate swaps	233	211
Accrued interest receivable	3,167	3,014
Liabilities
Deposits	(237,587)	(219,765)
FHLB and other borrowings	(337,913)	(226,769)
Subordinated debentures	(62,923)	(61,831)
Deposits held for sale		(6,417)
Interest rate swaps	(475)	(670)
Accrued interest payable	(279)	(510)
Significant Unobservable Inputs (Level 3) [Member]
ASSETS
Cash and cash equivalents	0	0
Securities available for sale	0	2,049
Trading securities	0	0
Loans held for sale	0	0
Net loans	2,056,755	1,817,341
Interest Rate swaps	0	0
Accrued interest receivable	6,204	5,244
Liabilities
Deposits	0	0
FHLB and other borrowings	0	0
Subordinated debentures	0	0
Deposits held for sale		0
Interest rate swaps	0	0
Accrued interest payable	$ 0	$ 0

Securities - Securities Availab

Securities - Securities Available for Sale (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 420,856	$ 493,691
Unrealized Gains	6,667	7,683
Unrealized Losses	(2,762)	(5,539)
Fair Value	424,761	495,835
U.S. Government Sponsored Entities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	121,022	139,823
Unrealized Gains	780	1,107
Unrealized Losses	(206)	(579)
Fair Value	121,596	140,351
States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	138,825	153,492
Unrealized Gains	4,911	4,194
Unrealized Losses	(266)	(649)
Fair Value	143,470	157,037
Residential and Multi-Family Mortgage [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	103,962	136,807
Unrealized Gains	485	551
Unrealized Losses	(1,194)	(2,382)
Fair Value	103,253	134,976
Corporate Notes and Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	17,610	18,299
Unrealized Gains	85	77
Unrealized Losses	(426)	(962)
Fair Value	17,269	17,414
Pooled Trust Preferred [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	0	800
Unrealized Gains	0	1,249
Unrealized Losses	0	0
Fair Value	0	2,049
Pooled SBA [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	38,417	43,450
Unrealized Gains	406	505
Unrealized Losses	(619)	(918)
Fair Value	38,204	43,037
Other Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,020	1,020
Unrealized Gains	0	0
Unrealized Losses	(51)	(49)
Fair Value	$ 969	$ 971

Securities - Additional Informa

Securities - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)Securities	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)Securities	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)Securities
Investments, Debt and Equity Securities [Abstract]
Number of securities holdings | Securities	0		0		0
Shareholders' equity percentage	10.00%		10.00%		10.00%
Securities	$ 298,989		$ 298,989		$ 329,379
Tax provision related to net realized gains	$ 2	$ 0	$ 540	$ 352

Securities - Trading Securities

Securities - Trading Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading securities	$ 5,981	$ 4,858
Corporate Equity Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading securities	4,095	3,312
Mutual Funds [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading securities	1,371	1,037
Corporate Notes and Bonds [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading securities	257	254
U.S. Government Sponsored Entities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading securities	53	53
Certificates of Deposit [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading securities	$ 205	$ 202

Securities - Securities with Un

Securities - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time that Individual Securities have been in Continuous Unrealized Loss Position (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 92,037	$ 196,901
Less than 12 Months, Unrealized Loss	(580)	(2,419)
12 Months or More, Fair Value	77,951	64,882
12 Months or More, Unrealized Loss	(2,182)	(3,120)
Total, Fair Value	169,988	261,783
Total, Unrealized Loss	(2,762)	(5,539)
U.S. Government Sponsored Entities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	50,112	90,380
Less than 12 Months, Unrealized Loss	(204)	(579)
12 Months or More, Fair Value	3,398	0
12 Months or More, Unrealized Loss	(2)	0
Total, Fair Value	53,510	90,380
Total, Unrealized Loss	(206)	(579)
States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	3,562	32,353
Less than 12 Months, Unrealized Loss	(50)	(448)
12 Months or More, Fair Value	1,524	264
12 Months or More, Unrealized Loss	(216)	(201)
Total, Fair Value	5,086	32,617
Total, Unrealized Loss	(266)	(649)
Residential and Multi-Family Mortgage [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	33,692	65,598
Less than 12 Months, Unrealized Loss	(259)	(1,255)
12 Months or More, Fair Value	44,212	34,611
12 Months or More, Unrealized Loss	(935)	(1,127)
Total, Fair Value	77,904	100,209
Total, Unrealized Loss	(1,194)	(2,382)
Corporate Notes and Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	0	2,089
Less than 12 Months, Unrealized Loss	0	(11)
12 Months or More, Fair Value	9,068	8,476
12 Months or More, Unrealized Loss	(426)	(951)
Total, Fair Value	9,068	10,565
Total, Unrealized Loss	(426)	(962)
Pooled SBA [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	4,671	6,481
Less than 12 Months, Unrealized Loss	(67)	(126)
12 Months or More, Fair Value	18,780	20,560
12 Months or More, Unrealized Loss	(552)	(792)
Total, Fair Value	23,451	27,041
Total, Unrealized Loss	(619)	(918)
Other Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Loss	0	0
12 Months or More, Fair Value	969	971
12 Months or More, Unrealized Loss	(51)	(49)
Total, Fair Value	969	971
Total, Unrealized Loss	$ (51)	$ (49)

Securities - Roll-Forward of Ot

Securities - Roll-Forward of Other-Than-Temporary Impairment Amount Related to Credit Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Marketable Securities [Abstract]
Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, beginning of period	$ 0	$ 2,071	$ 2,071	$ 4,054
Credit losses previously recognized on securities sold during the period	0	0	(2,071)	(1,983)
Additional credit loss for which other-than-temporary impairment was not previously recognized	0	0	0	0
Additional credit loss for which other-than-temporary impairment was previously recognized	0	0	0	0
Balance of credit losses on debt securities for which a portion of other-than-temporary impairment was recognized in earnings, end of period	$ 0	$ 2,071	$ 0	$ 2,071

Securities - Information Pertai

Securities - Information Pertaining to Security Sales (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Proceeds	$ 7,757	$ 0	$ 15,374	$ 4,420
Gross Gains	76	0	1,614	1,005
Gross Losses	$ (71)	$ 0	$ (71)	$ 0

Securities - Schedule of Contra

Securities - Schedule of Contractual Maturity of Securities Available for Sale, Excluding Equity Securities (Detail) $ in Thousands	Sep. 30, 2017USD ($)
Schedule of Available-for-sale Securities [Line Items]
1 year or less, Amortized Cost	$ 49,501
1 year - 5 years, Amortized Cost	164,006
5 years - 10 years, Amortized Cost	57,416
After 10 years, Amortized Cost	6,534
Total, Amortized Cost	277,457
1 year or less, Fair Value	49,346
1 year - 5 years, Fair Value	167,361
5 years - 10 years, Fair Value	59,157
After 10 years, Fair Value	6,471
Total, Fair Value	282,335
Total debt securities, Amortized Cost	419,836
Total debt securities, Fair Value	423,792
Residential and Multi-Family Mortgage [Member]
Schedule of Available-for-sale Securities [Line Items]
Mortgage & asset backed securities, Amortized Cost	103,962
Mortgage & asset backed securities, Fair Value	103,253
Pooled SBA [Member]
Schedule of Available-for-sale Securities [Line Items]
Mortgage & asset backed securities, Amortized Cost	38,417
Mortgage & asset backed securities, Fair Value	$ 38,204

Loans - Schedule of Net Loans (

Loans - Schedule of Net Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Loan Portfolio By Loan Grade [Line Items]
Commercial, industrial, and agricultural	$ 663,944	$ 567,800
Commercial mortgages	656,130	574,826
Residential real estate	697,059	652,883
Credit cards	6,249	6,046
Overdrafts	549	595
Less: unearned discount	(3,621)	(3,430)
Less: allowance for loan losses	(17,849)	(16,330)
Net loans	2,080,725	1,857,206
Consumer Portfolio Segment [Member]
Loan Portfolio By Loan Grade [Line Items]
Consumer	$ 78,264	$ 74,816

Loans - Additional Information

Loans - Additional Information (Detail)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017USD ($)Loans	Sep. 30, 2016USD ($)Loans	Sep. 30, 2017USD ($)Loans	Sep. 30, 2016USD ($)Loans	Dec. 31, 2016USD ($)Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net unamortized loan (fees) costs	$ (2,744,000)		$ (2,744,000)		$ (1,507,000)
Percentage of comprised loan, commercial, industrial and agricultural loans	32.00%		32.00%		30.00%
Percentage of comprised loan, commercial mortgage loans	31.00%		31.00%		31.00%
Percentage of loan-to-value to business equipment			80.00%
Percentage of loan-to-value to accounts receivable			75.00%
Percentage of loan-to-value to business inventory			60.00%
Percentage of loan-to-value to real estate			85.00%
Percentage of residential real estate loan in portfolio	33.00%		33.00%		35.00%
Number of Loans | Loans			18		15
Minimum period to be considered for loan to have defaulted			90 days
Allowance for loan losses, period increase (decrease)	$ 169,000	$ 0	$ 1,324,000	$ 0
Trouble Debt Restructuring [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | Loans	4	0	4	0
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum percentage of consumer loan and credit card in portfolio	10.00%		10.00%		10.00%
Minimum [Member] | Commercial And Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment threshold			$ 250,000

Loans - Allowance for Loan Loss

Loans - Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning Balance	$ 17,269	$ 15,988	$ 16,330	$ 16,737
Charge-offs	(977)	(993)	(2,672)	(3,401)
Recoveries	157	86	641	329
Provision (benefit) for loan losses	1,400	622	3,550	2,038
Allowance for loan losses, Ending Balance	17,849	15,703	17,849	15,703
Commercial, Industrial, and Agricultural [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning Balance	5,563	5,218	5,428	6,035
Charge-offs	(20)	(86)	(50)	(519)
Recoveries	36	37	167	84
Provision (benefit) for loan losses	(223)	(24)	(189)	(455)
Allowance for loan losses, Ending Balance	5,356	5,145	5,356	5,145
Commercial Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning Balance	7,641	6,207	6,753	5,605
Charge-offs	(22)	0	(22)	(20)
Recoveries	3	2	197	7
Provision (benefit) for loan losses	472	27	1,166	644
Allowance for loan losses, Ending Balance	8,094	6,236	8,094	6,236
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning Balance	1,670	2,299	1,653	2,475
Charge-offs	(130)	(95)	(328)	(244)
Recoveries	0	10	73	72
Provision (benefit) for loan losses	468	(65)	610	(154)
Allowance for loan losses, Ending Balance	2,008	2,149	2,008	2,149
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning Balance	2,068	2,066	2,215	2,371
Charge-offs	(703)	(709)	(1,969)	(2,397)
Recoveries	96	20	110	94
Provision (benefit) for loan losses	627	545	1,732	1,854
Allowance for loan losses, Ending Balance	2,088	1,922	2,088	1,922
Credit Cards [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning Balance	142	50	93	90
Charge-offs	(39)	(17)	(111)	(54)
Recoveries	8	3	23	18
Provision (benefit) for loan losses	0	36	106	18
Allowance for loan losses, Ending Balance	111	72	111	72
Overdrafts [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses, Beginning Balance	185	148	188	161
Charge-offs	(63)	(86)	(192)	(167)
Recoveries	14	14	71	54
Provision (benefit) for loan losses	56	103	125	131
Allowance for loan losses, Ending Balance	$ 192	$ 179	$ 192	$ 179

Loans - Allowance for Loan Lo47

Loans - Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Ending allowance balance attributable to loans:
Allowance for loan losses, Individually evaluated for impairment	$ 0		$ 1,184
Allowance for loan losses, Collectively evaluated for impairment	13,821		12,807
Allowance for loan losses, Modified in a troubled debt restructuring	4,028		2,339
Acquired with deteriorated credit quality	17,849	$ 17,269	16,330	$ 15,703	$ 15,988	$ 16,737
Loans:
Loans individually evaluated for impairment	653		6,951
Loans collectively evaluated for impairment	2,082,547		1,856,452
Acquired with deteriorated credit quality	1,320,074		1,142,626
Loans modified in a troubled debt restructuring	17,508		11,831
Total ending loans balance	2,102,195		1,876,966
Receivables Acquired with Deteriorated Credit Quality [Member]
Ending allowance balance attributable to loans:
Acquired with deteriorated credit quality	0		0
Loans:
Acquired with deteriorated credit quality	1,487		1,732
Commercial, Industrial, and Agricultural [Member]
Ending allowance balance attributable to loans:
Allowance for loan losses, Individually evaluated for impairment	0		188
Allowance for loan losses, Collectively evaluated for impairment	5,236		5,115
Allowance for loan losses, Modified in a troubled debt restructuring	120		125
Acquired with deteriorated credit quality	5,356	5,563	5,428	5,145	5,218	6,035
Loans:
Loans individually evaluated for impairment	602		775
Loans collectively evaluated for impairment	660,461		564,180
Acquired with deteriorated credit quality	663,944		567,800
Loans modified in a troubled debt restructuring	2,881		2,640
Total ending loans balance	663,944		567,800
Commercial, Industrial, and Agricultural [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Ending allowance balance attributable to loans:
Acquired with deteriorated credit quality	0		0
Loans:
Acquired with deteriorated credit quality	0		205
Commercial Mortgages [Member]
Ending allowance balance attributable to loans:
Allowance for loan losses, Individually evaluated for impairment	0		996
Allowance for loan losses, Collectively evaluated for impairment	4,186		3,543
Allowance for loan losses, Modified in a troubled debt restructuring	3,908		2,214
Acquired with deteriorated credit quality	8,094	7,641	6,753	6,236	6,207	5,605
Loans:
Loans individually evaluated for impairment	51		6,176
Loans collectively evaluated for impairment	639,965		557,932
Acquired with deteriorated credit quality	656,130		574,826
Loans modified in a troubled debt restructuring	14,627		9,191
Total ending loans balance	656,130		574,826
Commercial Mortgages [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Ending allowance balance attributable to loans:
Acquired with deteriorated credit quality	0		0
Loans:
Acquired with deteriorated credit quality	1,487		1,527
Residential Real Estate [Member]
Ending allowance balance attributable to loans:
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	2,008		1,653
Allowance for loan losses, Modified in a troubled debt restructuring	0		0
Acquired with deteriorated credit quality	2,008	1,670	1,653	2,149	2,299	2,475
Loans:
Loans individually evaluated for impairment	0		0
Loans collectively evaluated for impairment	697,059		652,883
Loans modified in a troubled debt restructuring	0		0
Total ending loans balance	697,059		652,883
Residential Real Estate [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Ending allowance balance attributable to loans:
Acquired with deteriorated credit quality	0		0
Loans:
Acquired with deteriorated credit quality	0		0
Consumer [Member]
Ending allowance balance attributable to loans:
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	2,088		2,215
Allowance for loan losses, Modified in a troubled debt restructuring	0		0
Acquired with deteriorated credit quality	2,088	2,068	2,215	1,922	2,066	2,371
Loans:
Loans individually evaluated for impairment	0		0
Loans collectively evaluated for impairment	78,264		74,816
Loans modified in a troubled debt restructuring	0		0
Total ending loans balance	78,264		74,816
Consumer [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Ending allowance balance attributable to loans:
Acquired with deteriorated credit quality	0		0
Loans:
Acquired with deteriorated credit quality	0		0
Credit Cards [Member]
Ending allowance balance attributable to loans:
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	111		93
Allowance for loan losses, Modified in a troubled debt restructuring	0		0
Acquired with deteriorated credit quality	111	142	93	72	50	90
Loans:
Loans individually evaluated for impairment	0		0
Loans collectively evaluated for impairment	6,249		6,046
Loans modified in a troubled debt restructuring	0		0
Total ending loans balance	6,249		6,046
Credit Cards [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Ending allowance balance attributable to loans:
Acquired with deteriorated credit quality	0		0
Loans:
Acquired with deteriorated credit quality	0		0
Overdrafts [Member]
Ending allowance balance attributable to loans:
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	192		188
Allowance for loan losses, Modified in a troubled debt restructuring	0		0
Acquired with deteriorated credit quality	192	$ 185	188	$ 179	$ 148	$ 161
Loans:
Loans individually evaluated for impairment	0		0
Loans collectively evaluated for impairment	549		595
Loans modified in a troubled debt restructuring	0		0
Total ending loans balance	549		595
Overdrafts [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Ending allowance balance attributable to loans:
Acquired with deteriorated credit quality	0		0
Loans:
Acquired with deteriorated credit quality	$ 0		$ 0

Loans - Loans Individually Eval

Loans - Loans Individually Evaluated for Impairment Including Loans Modified in Troubled Debt Restructurings by Portfolio Segment (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, Total	$ 20,132	$ 20,513
Recorded Investment, Total	18,161	18,782
Allowance for Loan Losses Allocated	4,028	3,523
Commercial, Industrial, and Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, Related Allowance	1,212	1,644
Recorded Investment, Related Allowance	1,213	1,644
Allowance for Loan Losses Allocated	120	313
Unpaid Principal Balance, No Related Allowance	3,089	2,669
Recorded Investment, No Related Allowance	2,270	1,771
Allowance for Loan Losses Allocated, No Related Allowance	0	0
Commercial Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, Related Allowance	9,995	16,200
Recorded Investment, Related Allowance	9,611	15,367
Allowance for Loan Losses Allocated	3,908	3,210
Unpaid Principal Balance, No Related Allowance	5,836	0
Recorded Investment, No Related Allowance	5,067	0
Allowance for Loan Losses Allocated, No Related Allowance	0	0
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, Related Allowance	0	0
Recorded Investment, Related Allowance	0	0
Allowance for Loan Losses Allocated	0	0
Unpaid Principal Balance, No Related Allowance	0	0
Recorded Investment, No Related Allowance	0	0
Allowance for Loan Losses Allocated, No Related Allowance	$ 0	$ 0

Loans - Impaired Financing Rece

Loans - Impaired Financing Receivables with Related and not Related Allowances (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Financing Receivable, Impaired [Line Items]
Average Recorded Investment, Total	$ 18,037	$ 13,955	$ 18,327	$ 15,160
Interest Income Recognized, Total	153	132	522	149
Cash Basis Interest Recognized, Total	153	132	522	149
Commercial, Industrial, and Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment, Related Allowance	1,190	2,340	1,413	2,859
Average Recorded Investment, No Related Allowance	2,142	2,148	1,927	2,420
Interest Income Recognized, Related Allowance	20	34	56	36
Interest Income Recognized, No Related Allowance	23	24	73	26
Cash Basis Interest Recognized, Related Allowance	20	34	56	36
Cash Basis Interest Recognized, No Related Allowance	23	24	73	26
Commercial Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment, Related Allowance	9,724	7,253	12,497	6,331
Average Recorded Investment, No Related Allowance	4,981	2,214	2,490	3,467
Interest Income Recognized, Related Allowance	77	57	293	61
Interest Income Recognized, No Related Allowance	33	17	100	20
Cash Basis Interest Recognized, Related Allowance	77	57	293	61
Cash Basis Interest Recognized, No Related Allowance	33	17	100	20
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment, Related Allowance	0	0	0	83
Average Recorded Investment, No Related Allowance	0	0	0	0
Interest Income Recognized, Related Allowance	0	0	0	6
Interest Income Recognized, No Related Allowance	0	0	0	0
Cash Basis Interest Recognized, Related Allowance	0	0	0	6
Cash Basis Interest Recognized, No Related Allowance	$ 0	$ 0	$ 0	$ 0

Loans - Nonaccrual Loans and Lo

Loans - Nonaccrual Loans and Loans Past Due over 90 Days Still Accruing Interest by Class of Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	$ 19,786	$ 15,329
Past Due Over 90 Days Still on Accrual	592	10
Commercial, Industrial, and Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,885	2,734
Past Due Over 90 Days Still on Accrual	408	0
Commercial Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	11,526	5,996
Past Due Over 90 Days Still on Accrual	0	0
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	5,663	5,600
Past Due Over 90 Days Still on Accrual	163	0
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	712	999
Past Due Over 90 Days Still on Accrual	0	0
Credit Cards [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0
Past Due Over 90 Days Still on Accrual	$ 21	$ 10

Loans - Aging of Recorded Inves

Loans - Aging of Recorded Investment in Past Due Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 13,857	$ 14,455
Loans Not Past Due	2,088,338	1,862,511
Total	2,102,195	1,876,966
30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,062	5,025
60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,799	1,926
Greater than 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,996	7,504
Commercial, Industrial, and Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,260	3,151
Loans Not Past Due	660,684	564,649
Total	663,944	567,800
Commercial, Industrial, and Agricultural [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,827	1,558
Commercial, Industrial, and Agricultural [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	486	299
Commercial, Industrial, and Agricultural [Member] | Greater than 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	947	1,294
Commercial Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	744	2,075
Loans Not Past Due	655,386	572,751
Total	656,130	574,826
Commercial Mortgages [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	559
Commercial Mortgages [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	40	0
Commercial Mortgages [Member] | Greater than 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	704	1,516
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,267	6,602
Loans Not Past Due	688,792	646,281
Total	697,059	652,883
Residential Real Estate [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,688	2,155
Residential Real Estate [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,932	737
Residential Real Estate [Member] | Greater than 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,647	3,710
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,466	2,512
Loans Not Past Due	76,798	72,304
Total	78,264	74,816
Consumer [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	484	648
Consumer [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	305	890
Consumer [Member] | Greater than 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	677	974
Credit Cards [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	120	115
Loans Not Past Due	6,129	5,931
Total	6,249	6,046
Credit Cards [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	63	105
Credit Cards [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	36	0
Credit Cards [Member] | Greater than 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	21	10
Overdrafts [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Loans Not Past Due	549	595
Total	549	595
Overdrafts [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Overdrafts [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Overdrafts [Member] | Greater than 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 0	$ 0

Loans - Restructured in Trouble

Loans - Restructured in Troubled Debt (Detail) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017USD ($)Loans	Dec. 31, 2016USD ($)Loans
Financing Receivable, Modifications [Line Items]
Number of Loans | Loans	18	15
Loan Balance	$ 17,508	$ 11,831
Specific Reserve	$ 4,028	$ 2,339
Commercial, Industrial, and Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loans	8	7
Loan Balance	$ 2,881	$ 2,640
Specific Reserve	$ 120	$ 125
Commercial Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loans	10	8
Loan Balance	$ 14,627	$ 9,191
Specific Reserve	$ 3,908	$ 2,214
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loans	0	0
Loan Balance	$ 0	$ 0
Specific Reserve	$ 0	$ 0
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loans	0	0
Loan Balance	$ 0	$ 0
Specific Reserve	$ 0	$ 0
Credit Cards [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loans	0	0
Loan Balance	$ 0	$ 0
Specific Reserve	$ 0	$ 0

Loans - Loans by Class Modified

Loans - Loans by Class Modified as Troubled Debt Restructurings (Detail) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017Loans	Sep. 30, 2016Loans	Sep. 30, 2017USD ($)Loans	Sep. 30, 2016Loans	Dec. 31, 2016Loans
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans			18		15
Commercial, Industrial, and Agricultural [Member]
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans			8		7
Commercial Mortgages [Member]
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans			10		8
Residential Real Estate [Member]
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans			0		0
Consumer [Member]
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans			0		0
Credit Cards [Member]
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans			0		0
Trouble Debt Restructuring [Member]
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans	4	0	4	0
Pre-Modification Outstanding Recorded Investment | $			$ 6,551
Post-Modification Outstanding Recorded Investment | $			$ 6,655
Trouble Debt Restructuring [Member] | Commercial, Industrial, and Agricultural [Member]
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans			2
Pre-Modification Outstanding Recorded Investment | $			$ 324
Post-Modification Outstanding Recorded Investment | $			$ 379
Trouble Debt Restructuring [Member] | Commercial Mortgages [Member]
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans			2
Pre-Modification Outstanding Recorded Investment | $			$ 6,227
Post-Modification Outstanding Recorded Investment | $			$ 6,276
Trouble Debt Restructuring [Member] | Residential Real Estate [Member]
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans			0
Pre-Modification Outstanding Recorded Investment | $			$ 0
Post-Modification Outstanding Recorded Investment | $			$ 0
Trouble Debt Restructuring [Member] | Consumer [Member]
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans			0
Pre-Modification Outstanding Recorded Investment | $			$ 0
Post-Modification Outstanding Recorded Investment | $			$ 0
Trouble Debt Restructuring [Member] | Credit Cards [Member]
Schedule Of Financial Receivables [Line Items]
Number of Loans | Loans			0
Pre-Modification Outstanding Recorded Investment | $			$ 0
Post-Modification Outstanding Recorded Investment | $			$ 0

Loans - Schedule of Loan Assign

Loans - Schedule of Loan Assigned Risk Rating within 12 Months of Balance Sheet Date (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	$ 1,320,074	$ 1,142,626
Commercial, Industrial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	663,944	567,800
Commercial Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	656,130	574,826
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	1,268,072	1,082,794
Pass [Member] | Commercial, Industrial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	631,550	531,320
Pass [Member] | Commercial Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	636,522	551,474
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	12,441	16,447
Special Mention [Member] | Commercial, Industrial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	9,312	14,638
Special Mention [Member] | Commercial Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	3,129	1,809
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	39,561	43,374
Substandard [Member] | Commercial, Industrial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	23,082	21,831
Substandard [Member] | Commercial Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	16,479	21,543
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	0	11
Doubtful [Member] | Commercial, Industrial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	0	11
Doubtful [Member] | Commercial Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable recorded investment	$ 0	$ 0

Loans - Recorded Investment in

Loans - Recorded Investment in Residential, Consumer and Credit Card Loans Based on Payment Activity (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Residential real estate	$ 697,059	$ 652,883
Credit cards	6,249	6,046
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Consumer	78,264	74,816
Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Residential real estate	691,233	647,283
Credit cards	6,228	6,036
Performing [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Consumer	77,552	73,817
Non-Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Residential real estate	5,826	5,600
Credit cards	21	10
Non-Performing [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Consumer	$ 712	$ 999

Loans - Summary of Holiday's Lo

Loans - Summary of Holiday's Loan Portfolio (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential real estate	$ 697,059	$ 652,883
Less: unearned discount	(3,621)	(3,430)
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer	78,264	74,816
Holiday Financial Services Corporation [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential real estate	0	1,209
Less: unearned discount	(3,621)	(3,430)
Total	18,772	21,805
Holiday Financial Services Corporation [Member] | Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer	$ 22,393	$ 24,026

Deposits - Total Deposits (Deta

Deposits - Total Deposits (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Banking and Thrift [Abstract]
Percentage Change, Checking, non-interest bearing	8.10%
Percentage Change, Checking, interest bearing	4.70%
Percentage Change, Savings accounts	(1.60%)
Percentage Change, Certificates of deposit	3.80%
Percentage change, Total	2.10%
Checking, non-interest bearing	$ 313,543	$ 289,922
Checking, interest bearing	569,087	543,388
Savings accounts	938,342	953,438
Certificates of deposit	239,638	230,774
Total deposits	$ 2,060,610	$ 2,017,522

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Dilutive effects of assumed exercises of stock options	0	0	0	0

Earnings Per Share - Computatio

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Basic earnings per common share computation:
Net income per consolidated statements of income	$ 7,246	$ 6,416	$ 20,409	$ 15,500
Net earnings allocated to participating securities	(40)	(40)	(120)	(101)
Net earnings allocated to common stock	$ 7,206	$ 6,376	$ 20,289	$ 15,399
Weighted average common shares outstanding, including shares considered participating securities	15,285	14,464	15,188	14,453
Less: Average participating securities	(78)	(82)	(84)	(85)
Weighted average shares	15,207	14,382	15,104	14,368
Basic earnings per common share	$ 0.47	$ 0.44	$ 1.34	$ 1.07
Diluted earnings per common share computation:
Net earnings allocated to common stock	$ 7,206	$ 6,376	$ 20,289	$ 15,399
Weighted average shares and dilutive potential common shares	15,207	14,382	15,104	14,368
Diluted earnings per common share	$ 0.47	$ 0.44	$ 1.34	$ 1.07
Distributed Earnings Allocated to Common Stock [Member]
Basic earnings per common share computation:
Net earnings allocated to common stock	$ 2,506	$ 2,370	$ 7,521	$ 7,107
Undistributed Earnings Allocated to Common Stock [Member]
Basic earnings per common share computation:
Net earnings allocated to common stock	$ 4,700	$ 4,006	$ 12,768	$ 8,292

Derivative Instruments - Additi

Derivative Instruments - Additional Information (Detail) - USD ($)	May 03, 2011	Sep. 30, 2017	Dec. 31, 2016
Schedule Of Loans And Allowance For Loan By Class Individually And Collectively Evaluated For Impairment [Line Items]
Term of interest rate swap agreement executed	5 years
Interest rate swap inception date	May 3, 2011
Value of subordinated note hedged	$ 10,000,000
Interest rate swap effective date	Sep. 15, 2013
Interest rate		The interest rate swap involves the receipt of variable-rate amounts in exchange for fixed-rate payments from September 15, 2013 to September 15, 2018 without exchange of the underlying notional amount.
Derivatives designated as fair value hedges		$ 0	$ 0
Accumulated other comprehensive loss estimated		270,000
Collateral amount for counterparty interest rate swap		$ 1,400,000	1,400,000
LIBOR Plus 155 Basis Points [Member]
Schedule Of Loans And Allowance For Loan By Class Individually And Collectively Evaluated For Impairment [Line Items]
Variable rate on the subordinated debt on effective date in case of interest rate swap		LIBOR plus 155 basis points
Variable interest rate on subordinate debt		2.87%
4.02% Fixed Rate Plus 155 Basis Points [Member]
Schedule Of Loans And Allowance For Loan By Class Individually And Collectively Evaluated For Impairment [Line Items]
Variable rate on the subordinated debt on effective date in case of interest rate swap		4.02% fixed rate plus 155 basis points
Interest rate being paid by the corporation		5.57%
Interest Rate Swaps [Member]
Schedule Of Loans And Allowance For Loan By Class Individually And Collectively Evaluated For Impairment [Line Items]
Derivative basis spread on variable rate		1.55%
Derivative fixed interest rate rate basis		4.02%
Cash collateral pledged		$ 750,000	$ 750,000

Derivative Instruments - Amount

Derivative Instruments - Amounts and Locations of Activity Related to Interest Rate Swaps Designated as Cash Flow Hedges within Corporation's Consolidated Balance Sheet and Statement of Income (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Derivative [Line Items]
Interest rate contracts	$ 46	$ 87	$ 141	$ 92
Accrued Interest and Other Liabilities [Member]
Derivative [Line Items]
Interest rate contract, fair value	(242)		(242)		$ (459)
Interest Expense - Subordinated Debentures [Member]
Derivative [Line Items]
Interest expense, Fair Value	(71)	(84)	(220)	(260)
Other Income [Member]
Derivative [Line Items]
Other income	$ 0	$ 0	$ 0	$ 0

Derivative Instruments - Amou62

Derivative Instruments - Amounts and Locations of Activity Related to Back-to-Back Interest Rate Swaps within Corporation's Consolidated Balance Sheet (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
3rd Party Interest Rate Swaps [Member]
Schedule Of Loans And Allowance For Loan By Class Individually And Collectively Evaluated For Impairment [Line Items]
Notional Amount	$ 14,559,000	$ 14,814,000
Weighted Average Maturity (in years)	8 years 3 months 19 days	9 years
Weighted Average Fixed Rate	4.43%	4.43%
Weighted Average Variable Rate, Description	1 month LIBOR + 2.35%	1 month LIBOR + 2.35%
Weighted Average Variable Rate	2.35%	2.35%
Fair Value	$ 233,000	$ 211,000
Customer Interest Rate Swaps [Member]
Schedule Of Loans And Allowance For Loan By Class Individually And Collectively Evaluated For Impairment [Line Items]
Notional Amount	$ 14,559,000	$ 14,814,000
Weighted Average Maturity (in years)	8 years 3 months 19 days	9 years
Weighted Average Fixed Rate	4.43%	4.43%
Weighted Average Variable Rate, Description	1 month LIBOR + 2.35%	1 month LIBOR + 2.35%
Weighted Average Variable Rate	2.35%	2.35%
Fair Value	$ 233,000	$ 211,000

Common Stock Issuance - Additio

Common Stock Issuance - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	9 Months Ended
	Feb. 28, 2017	Sep. 30, 2017	Sep. 30, 2016
Proceeds from Issuance or Sale of Equity [Abstract]
Number of common stock issued	834,896
Weighted average sale price for common stock issuance	$ 23.96
Gross proceeds from common stock issuance	$ 20,000
Net proceeds from common stock issuance	$ 19,300	$ 19,294	$ 0

Branch Sale - Additional Inform

Branch Sale - Additional Information (Detail) - USD ($) $ in Thousands	May 19, 2017	Sep. 30, 2017	Sep. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain from sale of branch		$ 536	$ 0
First Federal Community Bank [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loans transferred	$ 7,800
Fixed assets	100
Deposits transferred	7,400
Gain from sale of branch	$ 536
Deposit Premium	8.00%