Community Trust Bancorp (CTBI) 10-Q 3 Aug 17 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Jul. 31, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	COMMUNITY TRUST BANCORP INC /KY/
Entity Central Index Key	350,852
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		17,674,440
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets:
Cash and due from banks	$ 51,224	$ 48,603
Interest bearing deposits	74,806	95,586
Federal funds sold	1,800	527
Cash and cash equivalents	127,830	144,716
Certificates of deposit in other banks	12,260	980
Securities available-for-sale at fair value (amortized cost of $611,178 and $608,939, respectively)	610,368	605,394
Securities held-to-maturity at amortized cost (fair value of $858 and $867, respectively)	858	866
Loans held for sale	4,624	1,244
Loans	3,087,342	2,938,371
Allowance for loan and lease losses	(37,133)	(35,933)
Net loans	3,050,209	2,902,438
Premises and equipment, net	47,036	47,940
Federal Home Loan Bank stock	17,927	17,927
Federal Reserve Bank stock	4,887	4,887
Goodwill	65,490	65,490
Core deposit intangible (net of accumulated amortization of $8,562 and $8,483, respectively)	53	133
Bank owned life insurance	64,589	63,881
Mortgage servicing rights	3,304	3,433
Other real estate owned	32,785	35,856
Other assets	38,893	36,984
Total assets	4,081,113	3,932,169
Deposits:
Noninterest bearing	782,864	767,918
Interest bearing	2,322,746	2,313,390
Total deposits	3,105,610	3,081,308
Repurchase agreements	257,208	251,065
Federal funds purchased	7,220	4,816
Advances from Federal Home Loan Bank	100,894	944
Long-term debt	59,341	61,341
Deferred taxes	8,916	7,836
Other liabilities	27,009	24,244
Total liabilities	3,566,198	3,431,554
Shareholders' equity:
Preferred stock, 300,000 shares authorized and unissued	0	0
Common stock, $5 par value, shares authorized 25,000,000; shares outstanding 2017 - 17,670,501; 2016 - 17,628,695	88,353	88,144
Capital surplus	220,471	219,697
Retained earnings	206,617	195,078
Accumulated other comprehensive loss, net of tax	(526)	(2,304)
Total shareholders' equity	514,915	500,615
Total liabilities and shareholders' equity	$ 4,081,113	$ 3,932,169

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets:
Securities available-for-sale at amortized cost	$ 611,178	$ 608,939
Securities held-to-maturity at fair value	858	867
Core deposit intangible, accumulated amortization	$ 8,562	$ 8,483
Shareholders' equity:
Preferred stock, shares authorized (in shares)	300,000	300,000
Common stock, par value (in dollars per share)	$ 5	$ 5
Common stock, shares authorized (in shares)	25,000,000	25,000,000
Common stock, shares outstanding (in shares)	17,670,501	17,628,695

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income and Comprehensive Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Interest income:
Interest and fees on loans, including loans held for sale	$ 34,880	$ 33,255	$ 68,355	$ 66,579
Interest and dividends on securities
Taxable	2,230	2,065	4,260	4,158
Tax exempt	721	658	1,470	1,350
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock	283	252	559	506
Other, including interest on federal funds sold	297	144	535	308
Total interest income	38,411	36,374	75,179	72,901
Interest expense:
Interest on deposits	3,181	2,677	6,122	5,248
Interest on repurchase agreements and other short-term borrowings	411	284	749	548
Interest on advances from Federal Home Loan Bank	165	4	168	48
Interest on long-term debt	414	350	810	674
Total interest expense	4,171	3,315	7,849	6,518
Net interest income	34,240	33,059	67,330	66,383
Provision for loan losses	2,764	1,873	3,993	3,638
Net interest income after provision for loan losses	31,476	31,186	63,337	62,745
Noninterest income:
Service charges on deposit accounts	6,199	6,272	12,159	12,117
Gains on sales of loans, net	251	446	507	762
Trust and wealth management income	2,649	2,396	5,235	4,671
Loan related fees	773	739	1,778	1,350
Bank owned life insurance	526	538	1,050	1,068
Brokerage revenue	423	317	735	680
Securities gains (losses)	18	(4)	10	64
Other noninterest income	1,472	1,065	2,416	2,028
Total noninterest income	12,311	11,769	23,890	22,740
Noninterest expense:
Officer salaries and employee benefits	2,663	2,964	5,927	6,057
Other salaries and employee benefits	11,381	11,358	23,041	22,398
Occupancy, net	1,972	1,966	3,999	4,023
Equipment	748	729	1,534	1,444
Data processing	1,757	1,559	3,546	3,128
Bank franchise tax	1,521	1,400	3,041	2,799
Legal fees	385	502	827	982
Professional fees	551	483	1,047	922
Advertising and marketing	708	580	1,393	1,209
FDIC insurance	315	576	607	1,159
Other real estate owned provision and expense	1,827	468	2,743	1,019
Repossession expense	227	424	428	639
Amortization of limited partnership investments	604	997	1,209	1,532
Other noninterest expense	2,907	3,186	5,868	6,123
Total noninterest expense	27,566	27,192	55,210	53,434
Income before income taxes	16,221	15,763	32,017	32,051
Income taxes	4,680	4,197	9,199	8,883
Net income	11,541	11,566	22,818	23,168
Unrealized holding gains on securities available-for-sale:
Unrealized holding gains arising during the period	1,630	2,321	2,745	8,124
Less: Reclassification adjustments for realized gains (losses) included in net income	18	(4)	10	64
Tax expense	564	814	957	2,821
Other comprehensive income, net of tax	1,048	1,511	1,778	5,239
Comprehensive income	$ 12,589	$ 13,077	$ 24,596	$ 28,407
Basic earnings per share (in dollars per share)	$ 0.65	$ 0.66	$ 1.29	$ 1.32
Diluted earnings per share (in dollars per share)	$ 0.65	$ 0.66	$ 1.29	$ 1.32
Weighted average shares outstanding-basic (in shares)	17,626	17,530	17,621	17,521
Weighted average shares outstanding-diluted (in shares)	17,645	17,542	17,641	17,538
Dividends declared per share (in dollars per share)	$ 0.32	$ 0.31	$ 0.64	$ 0.62

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income	$ 22,818	$ 23,168
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,023	1,909
Deferred taxes	123	515
Stock-based compensation	302	235
Excess tax benefits of stock-based compensation	0	93
Provision for loan losses	3,993	3,638
Write-downs of other real estate owned and other repossessed assets	1,987	224
Gains on sale of mortgage loans held for sale	(507)	(762)
Securities gains	(10)	(64)
Gain on debt repurchase	(560)	0
Losses on sale of assets, net	10	75
Proceeds from sale of mortgage loans held for sale	22,859	34,372
Funding of mortgage loans held for sale	(25,732)	(34,145)
Amortization of securities premiums and discounts, net	1,551	1,016
Change in cash surrender value of bank owned life insurance	(708)	(758)
Mortgage servicing rights:
Fair value adjustments	301	660
New servicing assets created	(172)	(221)
Changes in:
Other assets	(1,966)	(3,371)
Other liabilities	2,756	(1,813)
Net cash provided by operating activities	29,068	24,771
Certificates of deposit in other banks:
Purchase of certificates of deposit	(11,515)	0
Maturity of certificates of deposit	235	2,732
Securities available-for-sale (AFS):
Purchase of AFS securities	(77,344)	(30,274)
Proceeds from the sales of AFS securities	3,261	3,509
Proceeds from prepayments and maturities of AFS securities	70,304	49,693
Securities held-to-maturity (HTM):
Proceeds from maturities of HTM securities	8	0
Change in loans, net	(151,624)	(62,493)
Purchase of premises and equipment	(1,187)	(1,746)
Proceeds from sale and retirement of premises and equipment	25	10
Proceeds from sale of other real estate and other repossessed assets	1,128	3,713
Net cash used in investing activities	(166,709)	(34,856)
Cash flows from financing activities:
Change in deposits, net	24,302	61,201
Change in repurchase agreements, federal funds purchased, and other short-term borrowings, net	8,547	10,811
Proceeds from Federal Home Loan Bank advances	100,000	0
Payments on advances from Federal Home Loan Bank	(50)	(100,057)
Repurchase of long-term debt	(1,440)	0
Issuance of common stock	708	560
Repurchase of common stock	0	(382)
Excess tax benefits of stock-based compensation	0	(93)
Dividends paid	(11,312)	(10,916)
Net cash provided by (used in) financing activities	120,755	(38,876)
Net decrease in cash and cash equivalents	(16,886)	(48,961)
Cash and cash equivalents at beginning of period	144,716	187,611
Cash and cash equivalents at end of period	127,830	138,650
Supplemental disclosures:
Income taxes paid	6,400	11,279
Interest paid	6,912	5,763
Non-cash activities:
Loans to facilitate the sale of other real estate owned and repossessed assets	1,574	2,257
Common stock dividends accrued, paid in subsequent quarter	204	208
Real estate acquired in settlement of loans	$ 1,434	$ 3,292

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2017
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 1 - Summary of Significant Accounting Policies In the opinion of management, the unaudited condensed consolidated financial statements include all adjustments (which consist of normal recurring adjustments) necessary, to present fairly the condensed consolidated financial position as of June 30, 2017, the results of operations for the three and six months ended June 30, 2017 and 2016, and the cash flows for the six months ended June 30, 2017 and 2016. In accordance with accounting principles generally accepted in the United States of America for interim financial information, these statements do not include certain information and footnote disclosures required by accounting principles generally accepted in the United States of America for complete annual financial statements. The results of operations for the three and six months ended June 30, 2017 and the cash flows for the six months ended June 30, 2017 and 2016 are not necessarily indicative of the results to be expected for the full year. The condensed consolidated balance sheet as of December 31, 2016 has been derived from the audited consolidated financial statements of Community Trust Bancorp, Inc. (“CTBI”) for that period. For further information, refer to the consolidated financial statements and footnotes thereto for the year ended December 31, 2016, included in our annual report on Form 10-K. Principles of Consolidation – Reclassifications – New Accounting Standards Ø Financial Instruments – Overall Financial Instruments – Overall (Subtopic 825-10) Ø Leases – In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) . While we expect the impact of this ASU to be significant, we have not finalized our calculation of the estimated amounts as we are currently evaluating certain significant variables within the calculation including the impact of individual renewal options and applicable discount rates for each individual lease. Ø Investments—Equity Method and Joint Ventures: Simplifying the Transition to the Equity Method of Accounting FASB issued ASU No. 2016-07, Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting. The amendments affect all entities that have an investment that becomes qualified for the equity method of accounting as a result of an increase in the level of ownership interest or degree of influence. The amendments eliminate the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. The amendments require that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The amendments should be applied prospectively upon their effective date to increases in the level of ownership interest or degree of influence that result in the adoption of the equity method. The amendments became effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016 and did not . Ø Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting FASB issued Accounting Standards Update (ASU) No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The amendments are intended to improve the accounting for employee share-based payments and affect all organizations that issue share-based payment awards to their employees. Several aspects of the accounting for share-based payment award transactions are simplified, including: (a) (b) (c) For public companies, the amendments were effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Ø Revenue from Contracts with Customers – Revenue from Contracts with Customers Ø Accounting for Credit Losses Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. For purchased financial assets with a more-than-insignificant amount of credit deterioration since origination (“PCD assets”) that are measured at amortized cost, the initial allowance for credit losses is added to the purchase price rather than being reported as a credit loss expense. Subsequent changes in the allowance for credit losses on PCD assets are recognized through the statement of income as a credit loss expense. Credit losses relating to available-for-sale debt securities will be recorded through an allowance for credit losses rather than as a direct write-down to the security. ASU 2016-13 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. CTBI has an implementation team working through the provisions of ASU 2016-13 including assessing the impact on its accounting and disclosures. Ø Statement of Cash Flows Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. Stakeholders indicated that there is diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows under Topic 230, Statement of Cash Flows, and other Topics. This ASU addresses the following eight specific cash flow issues: Debt prepayment or debt extinguishment costs; settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies (COLIs) (including bank-owned life insurance policies (BOLIs)); distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. The amendments in this Update apply to all entities that are required to present a statement of cash flows under Topic 230. This Update is the final version of Proposed Accounting Standards Update EITF-15F— Statement of Cash Flows—Classification of Certain Cash Receipts and Cash Payments (Topic 230) , which has been deleted. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The amendments in this Update should be applied using a retrospective transition method to each period presented. If it is impracticable to apply the amendments retrospectively for some of the issues, the amendments for those issues would be applied prospectively as of the earliest date practicable. Management intends to adopt this ASU effective January 1, 2018, and we do not expect Ø Simplifying the Test for Goodwill Impairment Intangibles – Goodwill and Other (Topic 350) – Simplifying the Test for Goodwill Impairment Ø Receivables – Nonrefundable Fees and Other Costs: Premium Amortization on Purchased Callable Debt Securities Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities Critical Accounting Policies and Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires the appropriate application of certain accounting policies, many of which require us to make estimates and assumptions about future events and their impact on amounts reported in our consolidated financial statements and related notes. Since future events and their impact cannot be determined with certainty, the actual results will inevitably differ from our estimates. Such differences could be material to the consolidated financial statements. We believe the application of accounting policies and the estimates required therein are reasonable. These accounting policies and estimates are constantly reevaluated, and adjustments are made when facts and circumstances dictate a change. Historically, we have found our application of accounting policies to be appropriate, and actual results have not differed materially from those determined using necessary estimates. We have identified the following critical accounting policies: Investments Investment Securities a. Trading securities . . b. Available-for-sale securities. Investments not classified as trading securities (nor as held-to-maturity securities) shall be classified as available-for-sale securities. We do not have any securities that are classified as trading securities. Available-for-sale securities are reported at fair value, with unrealized gains and losses included as a separate component of shareholders’ equity, net of tax. If declines in fair value are other than temporary, the carrying value of the securities is written down to fair value as a realized loss with a charge to income for the portion attributable to credit losses and a charge to other comprehensive income for the portion that is not credit related. Gains or losses on disposition of securities are computed by specific identification for all securities except for shares in mutual funds, which are computed by average cost. Interest and dividend income, adjusted by amortization of purchase premium or discount, is included in earnings. When the fair value of a security is below its amortized cost, and depending on the length of time the condition exists and the extent the fair market value is below amortized cost, additional analysis is performed to determine whether an other than temporary impairment condition exists. Available-for-sale and held-to-maturity securities are analyzed quarterly for possible other than temporary impairment. The analysis considers (i) whether we have the intent to sell our securities prior to recovery and/or maturity and (ii) whether it is more likely than not that we will not have to sell our securities prior to recovery and/or maturity. Often, the information available to conduct these assessments is limited and rapidly changing, making estimates of fair value subject to judgment. If actual information or conditions are different than estimated, the extent of the impairment of the security may be different than previously estimated, which could have a material effect on the CTBI’s results of operations and financial condition. Loans A restructuring of a debt constitutes a troubled debt restructuring if the creditor for economic or legal reasons related to the debtor’s financial difficulties grants a concession to the debtor that it would not otherwise consider. Loan origination and commitment fees and certain direct loan origination costs are deferred and the net amount amortized over the estimated life of the related loans, leases, or commitments as a yield adjustment. Allowance for Loan and Lease Losses We utilize an internal risk grading system for commercial credits. Those larger commercial credits that exhibit probable or observed credit weaknesses are subject to individual review. The borrower’s cash flow, adequacy of collateral coverage, and other options available to CTBI, including legal remedies, are evaluated. The review of individual loans includes those loans that are impaired as defined by ASC 310-10-35, Impairment of a Loan A loan is considered impaired when, based on current information and events, it is probable that CTBI will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Homogenous loans, such as consumer installment, residential mortgages, and home equity lines are not individually risk graded. The associated ALLL for these loans is measured under ASC 450, Contingencies When any secured commercial loan is considered uncollectable, whether past due or not, a current assessment of the value of the underlying collateral is made. If the balance of the loan exceeds the fair value of the collateral, the loan is placed on nonaccrual and the loan is charged down to the value of the collateral less estimated cost to sell or a specific reserve equal to the difference between book value of the loan and the fair value assigned to the collateral is created until such time as the loan is foreclosed. When the foreclosed collateral has been legally assigned to CTBI, the estimated fair value of the collateral less costs to sell is then transferred to other real estate owned or other repossessed assets, and a charge-off is taken for any remaining balance. When any unsecured commercial loan is considered uncollectable the loan is charged off no later than at 90 days past due. All closed-end consumer loans (excluding conventional 1-4 family residential loans and installment and revolving loans secured by real estate) are charged off no later than 120 days (5 monthly payments) delinquent. If a loan is considered uncollectable, it is charged off earlier than 120 days delinquent. For conventional 1-4 family residential loans and installment and revolving loans secured by real estate, when a loan is 90 days past due, a current assessment of the value of the real estate is made. If the balance of the loan exceeds the fair value of the property, the loan is placed on nonaccrual. Foreclosure proceedings are normally initiated after 120 days. When the foreclosed property has been legally assigned to CTBI, the fair value less estimated costs to sell is transferred to other real estate owned and the remaining balance is taken as a charge-off. Historical loss rates for loans are adjusted for significant factors that, in management’s judgment, reflect the impact of any current conditions on loss recognition. We use twelve rolling quarters for our historical loss rate analysis. Factors that we consider include delinquency trends, current economic conditions and trends, strength of supervision and administration of the loan portfolio, levels of underperforming loans, level of recoveries to prior year’s charge-offs, trends in loan losses, industry concentrations and their relative strengths, amount of unsecured loans, and underwriting exceptions. Management continually reevaluates the other subjective factors included in its ALLL analysis. Other Real Estate Owned All revenues and expenses related to the carrying of other real estate owned are recognized through the income statement. Income Taxes

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2017
Stock-Based Compensation [Abstract]
Stock-Based Compensation	Note 2 – Stock-Based Compensation CTBI’s compensation expense related to stock option grants was $14 thousand and $15 thousand, respectively, for the three months ended June 30, 2017 and 2016, and $28 thousand for both the six months ended June 30, 2017 and 2016. Restricted stock expense for the three months ended June 30, 2017 and 2016 was $142 thousand and $97 thousand, respectively, including $13 thousand and $9 thousand in dividends paid for each period. Restricted stock expense for the six months ended June 30, 2017 and 2016 was $274 thousand and $207 thousand, respectively, including $27 thousand and $18 thousand in dividends paid for each period. As of June 30, 2017, there was a total of $0.1 million of unrecognized compensation expense related to unvested stock option awards that will be recognized as expense as the awards vest over a weighted average period of 2.8 years and a total of $1.5 million of unrecognized compensation expense related to restricted stock grants that will be recognized as expense as the awards vest over a weighted average period of 3.3 years. There were no shares of restricted stock granted during three months ended June 30, 2017 and 2016. There were 23,668 and 18,069 shares of restricted stock granted during the six months ended June 30, 2017 and 2016, respectively. The restricted stock was issued pursuant to the terms of CTBI’s 2015 Stock Ownership Incentive Plan. The restrictions on the restricted stock will lapse ratably over four years, except for a 5,000 management retention restricted stock award granted in 2017 which will cliff vest at the end of five years There were no stock options granted in the first six months of 2017. There were 10,000 stock options granted during the six months ended June 30, 2016. The fair value of stock options granted during the six months ended June 30, 2016 were established at the date of grant using a Black-Scholes option pricing model with the weighted average assumptions as follows: Six Months Ended June 30, 2016 Expected dividend yield 3.70 % Risk-free interest rate 1.45 % Expected volatility 34.34 % Expected term (in years) 7.5 Weighted average fair value of options $ 6.82

Securities

Securities	6 Months Ended
	Jun. 30, 2017
Securities [Abstract]
Securities	Note 3 – Securities Securities are classified into held-to-maturity and available-for-sale categories. Held-to-maturity (HTM) securities are those that CTBI has the positive intent and ability to hold to maturity and are reported at amortized cost. Available-for-sale (AFS) securities are those that CTBI may decide to sell if needed for liquidity, asset-liability management or other reasons. Available-for-sale securities are reported at fair value, with unrealized gains or losses included as a separate component of equity, net of tax. The amortized cost and fair value of securities at June 30, 2017 are summarized as follows: Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Treasury and government agencies $ 236,345 $ 173 $ (460 ) $ 236,058 State and political subdivisions 129,872 2,833 (763 ) 131,942 U.S. government sponsored agency mortgage-backed securities 219,961 836 (2,925 ) 217,872 Total debt securities 586,178 3,842 (4,148 ) 585,872 CRA investment funds 25,000 90 (594 ) 24,496 Total available-for-sale securities $ 611,178 $ 3,932 $ (4,742 ) $ 610,368 Held-to-Maturity (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value State and political subdivisions $ 858 $ 0 $ 0 $ 858 Total held-to-maturity securities $ 858 $ 0 $ 0 $ 858 The amortized cost and fair value of securities at December 31, 2016 are summarized as follows: Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Treasury and government agencies $ 223,014 $ 193 $ (743 ) $ 222,464 State and political subdivisions 133,351 1,957 (1,792 ) 133,516 U.S. government sponsored agency mortgage-backed securities 227,574 1,008 (3,526 ) 225,056 Total debt securities 583,939 3,158 (6,061 ) 581,036 CRA investment funds 25,000 76 (718 ) 24,358 Total available-for-sale securities $ 608,939 $ 3,234 $ (6,779 ) $ 605,394 Held-to-Maturity (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value State and political subdivisions $ 866 $ 1 $ 0 $ 867 Total held-to-maturity securities $ 866 $ 1 $ 0 $ 867 The amortized cost and fair value of securities at June 30, 2017 by contractual maturity are shown below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Available-for-Sale Held-to-Maturity (in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 69,861 $ 69,819 $ 0 $ 0 Due after one through five years 162,304 163,221 858 858 Due after five through ten years 51,203 52,067 0 0 Due after ten years 82,849 82,893 0 0 U.S. government sponsored agency mortgage-backed securities 219,961 217,872 0 0 Total debt securities 586,178 585,872 858 858 CRA investment funds 25,000 24,496 0 0 Total securities $ 611,178 $ 610,368 $ 858 $ 858 During the three months ended June 30, 2017, there was a net gain of $18 thousand on sales and calls of AFS securities, consisting of a pre-tax gain of $30 thousand and a pre-tax loss of $12 thousand. During the three months ended June 30, 2016, there was a net loss of $4 thousand on calls of AFS securities, consisting of a pre-tax gain of $1 thousand and a pre-tax loss of $5 thousand. During the six months ended June 30, 2017, there was a combined gain of $10 thousand on sales and calls of AFS securities, consisting of a pre-tax gain of $29 thousand and a pre-tax loss of $19 thousand. During the six months ended June 30, 2016, there was a combined gain of $64 thousand on sales and calls of AFS securities, consisting of a pre-tax gain of $69 thousand and a pre-tax loss of $5 thousand. The amortized cost of securities pledged as collateral, to secure public deposits and for other purposes, was $224.1 million at June 30, 2017 and $221.2 million at December 31, 2016. The amortized cost of securities sold under agreements to repurchase amounted to $297.1 million at June 30, 2017 and $303.5 million at December 31, 2016. CTBI evaluates its investment portfolio on a quarterly basis for impairment. The analysis performed as of June 30, 2017 indicates that all impairment is considered temporary, market and interest rate driven, and not credit-related. The percentage of total investments with unrealized losses as of June 30, 2017 was 60.7% compared to 65.6% as of December 31, 2016. The following tables provide the amortized cost, gross unrealized losses, and fair market value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position as of June 30, 2017 that are not deemed to be other-than-temporarily impaired. There were no held-to-maturity securities that were deemed to be impaired as of June 30, 2017. Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Losses Fair Value Less Than 12 Months U.S. Treasury and government agencies $ 139,137 $ (419 ) $ 138,718 State and political subdivisions 26,970 (742 ) 26,228 U.S. government sponsored agency mortgage-backed securities 132,510 (2,076 ) 130,434 Total debt securities 298,617 (3,237 ) 295,380 CRA investment funds 17,500 (347 ) 17,153 Total <12 months temporarily impaired AFS securities 316,117 (3,584 ) 312,533 12 Months or More U.S. Treasury and government agencies 21,647 (41 ) 21,606 State and political subdivisions 2,383 (21 ) 2,362 U.S. government sponsored agency mortgage-backed securities 30,644 (849 ) 29,795 Total debt securities 54,674 (911 ) 53,763 CRA investment funds 5,000 (247 ) 4,753 Total ≥12 months temporarily impaired AFS securities 59,674 (1,158 ) 58,516 Total U.S. Treasury and government agencies 160,784 (460 ) 160,324 State and political subdivisions 29,353 (763 ) 28,590 U.S. government sponsored agency mortgage-backed securities 163,154 (2,925 ) 160,229 Total debt securities 353,291 (4,148 ) 349,143 CRA investment funds 22,500 (594 ) 21,906 Total temporarily impaired AFS securities $ 375,791 $ (4,742 ) $ 371,049 U.S. Treasury and Government Agencies The unrealized losses in U.S. Treasury and government agencies were caused by interest rate increases. The contractual terms of those investments do not permit the issuer to settle the securities at a price less than par which will equal amortized cost at maturity. CTBI does not consider those investments to be other-than-temporarily impaired at June 30, 2017, because CTBI does not intend to sell the investments and it is not more likely than not that we will be required to sell the investments before recovery of their amortized cost, which may be maturity. State and Political Subdivisions The unrealized losses in securities of state and political subdivisions were caused by interest rate increases. The contractual terms of those investments do not permit the issuer to settle the securities at a price less than par which will equal amortized cost at maturity. CTBI does not consider those investments to be other-than-temporarily impaired at June 30, 2017, because CTBI does not intend to sell the investments before recovery of their amortized cost and it is not more likely than not that we will be required to sell the investments before recovery of their amortized cost, which may be maturity. U.S. Government Sponsored Agency Mortgage-Backed Securities The unrealized losses in U.S. government sponsored agency mortgage-backed securities were caused by interest rate increases. CTBI expects to recover the amortized cost basis over the term of the securities. CTBI does not consider those investments to be other-than-temporarily impaired at June 30, 2017, because (i) the decline in market value is attributable to changes in interest rates and not credit quality, (ii) CTBI does not intend to sell the investments, and (iii) it is not more likely than not we will be required to sell the investments before recovery of their amortized cost, which may be maturity. CRA Investment Funds CTBI’s CRA investment funds consist of investments in fixed income mutual funds ($24.5 million of the total fair value and $594 thousand of the total unrealized losses in common stock investments). The severity of the impairment (fair value is approximately 2.4% less than cost) and the duration of the impairment correlates with the decline in long-term interest rates in 2017. CTBI evaluated the near-term prospects of these funds in relation to the severity and duration of the impairment. Based on that evaluation, CTBI does not consider those investments to be other-than-temporarily impaired at June 30, 2017. The analysis performed as of December 31, 2016 indicated that all impairment was considered temporary, market and interest rate driven, and not credit-related. The following tables provide the amortized cost, gross unrealized losses, and fair market value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position as of December 31, 2016 that are not deemed to be other-than-temporarily impaired. There were no held-to-maturity securities that were deemed to be impaired as of December 31, 2016. Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Losses Fair Value Less Than 12 Months U.S. Treasury and government agencies $ 158,732 $ (716 ) $ 158,016 State and political subdivisions 53,491 (1,780 ) 51,711 U.S. government sponsored agency mortgage-backed securities 135,939 (2,646 ) 133,293 Total debt securities 348,162 (5,142 ) 343,020 CRA investment funds 17,500 (444 ) 17,056 Total <12 months temporarily impaired AFS securities 365,662 (5,586 ) 360,076 12 Months or More U.S. Treasury and government agencies 1,880 (27 ) 1,853 State and political subdivisions 751 (12 ) 739 U.S. government sponsored agency mortgage-backed securities 31,132 (880 ) 30,252 Total debt securities 33,763 (919 ) 32,844 CRA investment funds 5,000 (274 ) 4,726 Total ≥12 months temporarily impaired AFS securities 38,763 (1,193 ) 37,570 Total U.S. Treasury and government agencies 160,612 (743 ) 159,869 State and political subdivisions 54,242 (1,792 ) 52,450 U.S. government sponsored agency mortgage-backed securities 167,071 (3,526 ) 163,545 Total debt securities 381,925 (6,061 ) 375,864 CRA investment funds 22,500 (718 ) 21,782 Total temporarily impaired AFS securities $ 404,425 $ (6,779 ) $ 397,646

Loans

Loans	6 Months Ended
	Jun. 30, 2017
Loans [Abstract]
Loans	Note 4 – Loans Major classifications of loans, net of unearned income, deferred loan origination costs, and net premiums on acquired loans, are summarized as follows: (in thousands) June 30 2017 December 31 2016 Commercial construction $ 72,054 $ 66,998 Commercial secured by real estate 1,179,229 1,085,428 Equipment lease financing 4,903 5,512 Commercial other 352,173 350,159 Real estate construction 58,566 57,966 Real estate mortgage 708,467 702,969 Home equity 93,721 91,511 Consumer direct 135,228 133,093 Consumer indirect 483,001 444,735 Total loans $ 3,087,342 $ 2,938,371 CTBI has segregated and evaluates its loan portfolio through nine portfolio segments. CTBI serves customers in small and mid-sized communities in eastern, northeastern, central, and south central Kentucky, southern West Virginia, and northeastern Tennessee. Therefore, CTBI’s exposure to credit risk is significantly affected by changes in these communities. Commercial construction loans are for the purpose of erecting or rehabilitating buildings or other structures for commercial purposes, including any infrastructure necessary for development. Included in this category are improved property, land development, and tract development loans. The terms of these loans are generally short-term with permanent financing upon completion. Commercial real estate loans include loans secured by nonfarm, nonresidential properties, 1-4 family/multi-family properties, farmland, and other commercial real estate. These loans are originated based on the borrower’s ability to service the debt and secondarily based on the fair value of the underlying collateral. Equipment lease financing loans are fixed, variable, and tax exempt leases for commercial purposes. Commercial other loans consist of commercial check loans, agricultural loans, receivable financing, floorplans, loans to financial institutions, loans for purchasing or carrying securities, and other commercial purpose loans. Commercial loans are underwritten based on the borrower’s ability to service debt from the business’s underlying cash flows. As a general practice, we obtain collateral such as real estate, equipment, or other assets, although such loans may be uncollateralized but guaranteed. Real estate construction loans are typically for owner-occupied properties. The terms of these loans are generally short-term with permanent financing upon completion. Residential real estate loans are a mixture of fixed rate and adjustable rate first and second lien residential mortgage loans. As a policy, CTBI holds adjustable rate loans and sells the majority of its fixed rate first lien mortgage loans into the secondary market. Changes in interest rates or market conditions may impact a borrower’s ability to meet contractual principal and interest payments. Residential real estate loans are secured by real property. Home equity lines are revolving adjustable rate credit lines secured by real property. Consumer direct loans are fixed rate products comprised of unsecured loans, consumer revolving credit lines, deposit secured loans, and all other consumer purpose loans. Consumer indirect loans are fixed rate loans secured by automobiles, trucks, vans, and recreational vehicles originated at the selling dealership underwritten and purchased by CTBI’s indirect lending department. Both new and used products are financed. Only dealers who have executed dealer agreements with CTBI participate in the indirect lending program. Not i Refer to note 1 to the condensed consolidated financial statements for further information regarding our nonaccrual policy. Nonaccrual loans segregated by class of loans were as follows: (in thousands) June 30 2017 December 31 2016 Commercial: Commercial construction $ 1,328 $ 1,912 Commercial secured by real estate 8,713 6,326 Commercial other 1,404 1,559 Residential: Real estate construction 189 11 Real estate mortgage 7,461 6,260 Home equity 556 555 Total nonaccrual loans $ 19,651 $ 16,623 The following tables present CTBI’s loan portfolio aging analysis, segregated by class, as of June 30, 2017 and December 31, 2016: June 30, 2017 (in thousands) 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans 90+ and Accruing* Commercial: Commercial construction $ 0 $ 0 $ 1,352 $ 1,352 $ 70,702 $ 72,054 $ 24 Commercial secured by real estate 2,272 3,540 7,757 13,569 1,165,660 1,179,229 2,171 Equipment lease financing 0 0 130 130 4,773 4,903 130 Commercial other 513 420 1,123 2,056 350,117 352,173 235 Residential: Real estate construction 1,254 177 393 1,824 56,742 58,566 205 Real estate mortgage 950 4,113 11,270 16,333 692,134 708,467 5,042 Home equity 1,004 261 692 1,957 91,764 93,721 300 Consumer: Consumer direct 788 132 34 954 134,274 135,228 34 Consumer indirect 2,826 793 221 3,840 479,161 483,001 221 Total $ 9,607 $ 9,436 $ 22,972 $ 42,015 $ 3,045,327 $ 3,087,342 $ 8,362 December 31, 2016 (in thousands) 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans 90+ and Accruing* Commercial: Commercial construction $ 22 $ 0 $ 1,940 $ 1,962 $ 65,036 $ 66,998 $ 28 Commercial secured by real estate 2,033 478 8,847 11,358 1,074,070 1,085,428 3,015 Equipment lease financing 0 0 0 0 5,512 5,512 0 Commercial other 997 122 1,235 2,354 347,805 350,159 141 Residential: Real estate construction 707 42 152 901 57,065 57,966 152 Real estate mortgage 1,493 5,278 10,695 17,466 685,503 702,969 6,295 Home equity 829 288 905 2,022 89,489 91,511 467 Consumer: Consumer direct 873 265 68 1,206 131,887 133,093 68 Consumer indirect 3,288 851 681 4,820 439,915 444,735 681 Total $ 10,242 $ 7,324 $ 24,523 $ 42,089 $ 2,896,282 $ 2,938,371 $ 10,847 *90+ and Accruing are also included in 90+ Days Past Due column. The risk characteristics of CTBI’s material portfolio segments are as follows: Commercial construction loans generally are made to customers for the purpose of building income-producing properties. Personal guarantees of the principals are generally required. Such loans are made on a projected cash flow basis and are secured by the project being constructed. Construction loan draw procedures are included in each specific loan agreement, including required documentation items and inspection requirements. Construction loans may convert to term loans at the end of the construction period, or may be repaid by the take-out commitment from another financing source. If the loan is to convert to a term loan, the repayment ability is based on the borrower’s projected cash flow. Risk is mitigated during the construction phase by requiring proper documentation and inspections whenever a draw is requested. Loans in amounts greater than $500,000 generally require a performance bond to be posted by the general contractor to assure completion of the project. Commercial real estate loans are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Commercial real estate lending typically involves higher loan principal amounts and the repayment of these loans is generally dependent on the successful operation of the property securing the loan or the business conducted on the property securing the loan. Commercial real estate loans may be more adversely affected by conditions in the real estate markets or in the general economy. Management monitors and evaluates commercial real estate loans based on collateral and risk grade criteria. Equipment lease financing is underwritten by our commercial lenders using the same underwriting standards as would be applied to a secured commercial loan requesting 100% financing. The pricing for equipment lease financing is comparable to that of borrowers with similar quality commercial credits with similar collateral. Maximum terms of equipment leasing are determined by the type and expected life of the equipment to be leased. Residual values are determined by appraisals or opinion letters from industry experts. Leases must be in conformity with our consolidated annual tax plan. As we underwrite our equipment lease financing in a manner similar to our commercial loan portfolio described below, the risk characteristics for this portfolio mirror that of the commercial loan portfolio. Commercial loans are primarily based on the identified cash flows of the borrower and secondarily on the underlying collateral provided by the borrower. The cash flows of borrowers, however, may not be as expected and the collateral securing these loans may fluctuate in value. Most commercial loans are secured by the assets being financed or other business assets such as accounts receivable or inventory and may incorporate a personal guarantee; however, some short-term loans may be made on an unsecured basis. In the case of loans secured by accounts receivable, the availability of funds for the repayment of these loans may be substantially dependent on the ability of the borrower to collect amounts due from its customers. With respect to residential loans that are secured by 1-4 family residences and are generally owner occupied, CTBI generally establishes a maximum loan-to-value ratio and requires private mortgage insurance if that ratio is exceeded. Home equity loans are typically secured by a subordinate interest in 1-4 family residences. Residential construction loans are handled through the home mortgage area of the bank. The repayment ability of the borrower and the maximum loan-to-value ratio are calculated using the normal mortgage lending criteria. Draws are processed based on percentage of completion stages including normal inspection procedures. Such loans generally convert to term loans after the completion of construction. Consumer loans are secured by consumer assets such as automobiles or recreational vehicles. Some consumer loans are unsecured such as small installment loans and certain lines of credit. Our determination of a borrower’s ability to repay these loans is primarily dependent on the personal income and credit rating of the borrowers, which can be impacted by economic conditions in their market areas such as unemployment levels. Repayment can also be impacted by changes in property values on residential properties. Risk is mitigated by the fact that the loans are of smaller individual amounts and spread over a large number of borrowers. The indirect lending area of the bank generally deals with purchasing/funding consumer contracts with new and used automobile dealers. The dealers generate consumer loan applications which are forwarded to the indirect loan processing area for approval or denial. Loan approvals or denials are based on the creditworthiness and repayment ability of the borrower, and on the collateral value. The dealers may have recourse agreements with CTB. Credit Quality Indicators: CTBI categorizes 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. CTBI also considers the fair value of the underlying collateral and the strength and willingness of the guarantor(s). CTBI analyzes commercial loans individually by classifying the loans as to credit risk. Loans classified as loss, doubtful, substandard, or special mention are reviewed quarterly by CTBI for further deterioration or improvement to determine if appropriately classified and valued if deemed impaired. All other commercial loan reviews are completed every 12 to 18 months. In addition, during the renewal process of any loan, as well as if a loan becomes past due or if other information becomes available, CTBI will evaluate the loan grade. CTBI uses the following definitions for risk ratings: Ø Pass Ø Watch Ø Other assets especially mentioned (OAEM) Ø Substandard Ø Doubtful The following tables present the credit risk profile of CTBI’s commercial loan portfolio based on rating category and payment activity, segregated by class of loans, as of June 30, 2017 and December 31, 2016: (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Leases Commercial Other Total June 30, 2017 Pass $ 62,033 $ 1,056,938 $ 4,667 $ 302,783 $ 1,426,421 Watch 3,988 64,594 0 30,861 99,443 OAEM 1,874 23,458 106 8,775 34,213 Substandard 3,981 33,882 130 9,389 47,382 Doubtful 178 357 0 365 900 Total $ 72,054 $ 1,179,229 $ 4,903 $ 352,173 $ 1,608,359 December 31, 2016 Pass $ 55,315 $ 975,383 $ 5,206 $ 299,301 $ 1,335,205 Watch 3,366 51,932 137 32,780 88,215 OAEM 2,535 25,772 169 7,913 36,389 Substandard 5,592 31,945 0 9,599 47,136 Doubtful 190 396 0 566 1,152 Total $ 66,998 $ 1,085,428 $ 5,512 $ 350,159 $ 1,508,097 The following tables present the credit risk profile of CTBI’s residential real estate and consumer loan portfolios based on performing or nonperforming status, segregated by class, as of June 30, 2017 and December 31, 2016: (in thousands) Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total June 30, 2017 Performing $ 58,172 $ 695,964 $ 92,865 $ 135,194 $ 482,780 $ 1,464,975 Nonperforming (1) 394 12,503 856 34 221 14,008 Total $ 58,566 $ 708,467 $ 93,721 $ 135,228 $ 483,001 $ 1,478,983 December 31, 2016 Performing $ 57,803 $ 690,414 $ 90,489 $ 133,025 $ 444,054 $ 1,415,785 Nonperforming (1) 163 12,555 1,022 68 681 14,489 Total $ 57,966 $ 702,969 $ 91,511 $ 133,093 $ 444,735 $ 1,430,274 (1) A loan is considered nonperforming if it is 90 days or more past due and/or on nonaccrual. The total of consumer mortgage loans secured by real estate properties for which formal foreclosure proceedings are in process totaled $5.0 million at June 30, 2017 compared to $3.5 million at December 31, 2016. A loan is considered impaired, in accordance with the impairment accounting guidance (ASC 310-10-35-16), when based on current information and events, it is probable CTBI will be unable to collect all amounts due from the borrower in accordance with the contractual terms of the loan. Impaired loans include nonperforming commercial loans but also include loans modified in troubled debt restructurings where concessions have been granted to borrowers experiencing financial difficulties. These concessions could include a reduction in the interest rate on the loan, payment extensions, forgiveness of principal, forbearance, or other actions intended to maximize collection. The following table presents impaired loans, the average investment in impaired loans, and interest income recognized on impaired loans for the periods ended June 30, 2017, December 31, 2016, and June 30, 2016: June 30, 2017 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Loans without a specific valuation allowance: Commercial construction $ 4,707 $ 4,709 $ 0 Commercial secured by real estate 27,509 28,195 0 Equipment lease financing 130 130 0 Commercial other 10,719 12,619 0 Real estate construction 846 846 0 Real estate mortgage 1,803 1,803 0 Loans with a specific valuation allowance: Commercial construction 153 174 25 Commercial secured by real estate 4,731 5,833 1,227 Commercial other 131 134 67 Totals: Commercial construction 4,860 4,883 25 Commercial secured by real estate 32,240 34,028 1,227 Equipment lease financing 130 130 0 Commercial other 10,850 12,753 67 Real estate construction 846 846 0 Real estate mortgage 1,803 1,803 0 Total $ 50,729 $ 54,443 $ 1,319 Three Months Ended Six Months Ended June 30, 2017 June 30, 2017 (in thousands) Average Investment in Impaired Loans *Interest Income Recognized Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 5,041 $ 49 $ 5,101 $ 86 Commercial secured by real estate 27,858 343 28,252 704 Equipment lease financing 135 0 68 0 Commercial other 10,882 133 10,981 273 Real estate construction 846 0 423 0 Real estate mortgage 1,803 11 1,804 22 Loans with a specific valuation allowance: Commercial construction 153 0 157 0 Commercial secured by real estate 4,745 5 4,362 5 Commercial other 131 0 66 0 Totals: Commercial construction 5,194 49 5,258 86 Commercial secured by real estate 32,603 348 32,614 709 Equipment lease financing 135 0 68 0 Commercial other 11,013 133 11,047 273 Real estate construction 846 0 423 0 Real estate mortgage 1,803 11 1,804 22 Total $ 51,594 $ 541 $ 51,214 $ 1,090 December 31, 2016 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 4,102 $ 4,123 $ 0 $ 4,367 $ 218 Commercial secured by real estate 29,025 29,594 0 31,136 1,609 Commercial other 11,215 13,155 0 11,561 632 Real estate mortgage 1,483 1,483 0 1,691 52 Loans with a specific valuation allowance: Commercial construction 1,507 1,509 213 2,290 0 Commercial secured by real estate 4,731 5,885 1,035 4,151 19 Commercial other 139 139 65 483 0 Totals: Commercial construction 5,609 5,632 213 6,657 218 Commercial secured by real estate 33,756 35,479 1,035 35,287 1,628 Commercial other 11,354 13,294 65 12,044 632 Real estate mortgage 1,483 1,483 0 1,691 52 Total $ 52,202 $ 55,888 $ 1,313 $ 55,679 $ 2,530 June 30, 2016 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Loans without a specific valuation allowance: Commercial construction $ 4,455 $ 4,741 $ 0 Commercial secured by real estate 30,181 30,816 0 Commercial other 11,328 13,113 0 Real estate mortgage 1,761 1,761 0 Loans with a specific valuation allowance: Commercial construction 2,207 2,209 287 Commercial secured by real estate 2,667 3,721 720 Commercial other 670 683 330 Totals: Commercial construction 6,662 6,950 287 Commercial secured by real estate 32,848 34,537 720 Commercial other 11,998 13,796 330 Real estate mortgage 1,761 1,761 0 Total $ 53,269 $ 57,044 $ 1,337 Three Months Ended Six Months Ended June 30, 2016 June 30, 2016 (in thousands) Average Investment in Impaired Loans *Interest Income Recognized Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 4,730 $ 56 $ 4,526 $ 105 Commercial secured by real estate 30,339 387 31,426 774 Commercial other 11,446 169 11,597 317 Real estate mortgage 1,764 14 1,893 30 Loans with a specific valuation allowance: Commercial construction 2,372 0 2,887 0 Commercial secured by real estate 3,598 0 4,163 18 Commercial other 667 0 693 0 Totals: Commercial construction 7,102 56 7,413 105 Commercial secured by real estate 33,937 387 35,589 792 Commercial other 12,113 169 12,290 317 Real estate mortgage 1,764 14 1,893 30 Total $ 54,916 $ 626 $ 57,185 $ 1,244 *Cash basis interest is substantially the same as interest income recognized. Included in certain loan categories of impaired loans are certain loans and leases that have been modified in a troubled debt restructuring, where economic concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from our loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Modifications of terms for our loans and their inclusion as troubled debt restructurings are based on individual facts and circumstances. Loan modifications that are included as troubled debt restructurings may involve either an increase or reduction of the interest rate, extension of the term of the loan, or deferral of principal and/or interest payments, regardless of the period of the modification. All of the loans identified as troubled debt restructuring were modified due to financial stress of the borrower. In order to determine if a borrower is experiencing financial difficulty, an evaluation is performed to determine the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification. This evaluation is performed under CTBI’s internal underwriting policy. When we modify loans and leases in a troubled debt restructuring, we evaluate any possible impairment similar to other impaired loans based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan or lease agreement, or use the current fair value of the collateral, less selling costs for collateral dependent loans. If we determined that the value of the modified loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs and unamortized premium or discount), impairment is recognized through an allowance estimate or a charge-off to the allowance. In periods subsequent to modification, we evaluate all troubled debt restructuring, including those that have payment defaults, for possible impairment and recognize impairment through the allowance. During 2017, Three Months Ended June 30, 2017 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 2 $ 0 $ 0 $ 114 $ 114 Commercial secured by real estate 4 530 0 192 722 Commercial other 7 82 0 136 218 Residential: Real estate construction 1 846 0 0 846 Total troubled debt restructurings 14 $ 1,458 $ 0 $ 442 $ 1,900 Six Months Ended June 30, 2017 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 2 $ 0 $ 0 $ 114 $ 114 Commercial secured by real estate 5 579 0 192 771 Commercial other 9 135 0 136 271 Residential: Real estate construction 1 846 0 0 846 Real estate mortgage 1 323 0 0 323 Total troubled debt restructurings 18 $ 1,883 $ 0 $ 442 $ 2,325 Three Months Ended June 30, 2016 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 4 $ 120 $ 0 $ 0 $ 120 Commercial secured by real estate 8 1,611 0 536 2,147 Commercial other 6 440 0 0 440 Total troubled debt restructurings 18 $ 2,171 $ 0 $ 536 $ 2,707 Six Months Ended June 30, 2016 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 5 $ 1,408 $ 0 $ 0 $ 1,408 Commercial secured by real estate 21 5,609 0 580 6,189 Commercial other 16 5,041 0 0 5,041 Residential: Real estate mortgage 1 0 0 280 280 Total troubled debt restructurings 43 $ 12,058 $ 0 $ 860 $ 12,918 Year Ended December 31, 2016 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 1 $ 1,288 $ 0 $ 0 $ 1,288 Commercial secured by real estate 27 8,827 0 581 9,408 Commercial other 14 5,088 0 87 5,175 Residential: Real estate mortgage 1 0 0 281 281 Total troubled debt restructurings 43 $ 15,203 $ 0 $ 949 $ 16,152 No charge-offs have resulted from modifications for any of the presented periods. We had commitments to extend additional credit in the amount of $0.1 million on loans that were considered troubled debt restructurings at June 30, 2017. Loans retain their accrual status at the time of their modification. As a result, if a loan is on nonaccrual at the time it is modified, it stays as nonaccrual, and if a loan is on accrual at the time of the modification, it generally stays on accrual. Commercial and consumer loans modified in a troubled debt restructuring are closely monitored for delinquency as an early indicator of possible future default. If loans modified in a troubled debt restructuring subsequently default, CTBI evaluates the loan for possible further impairment. The allowance for loan losses may be increased, adjustments may be made in the allocation of the allowance, or partial charge-offs may be taken to further write-down the carrying value of the loan. Presented below, segregated by class of loans, are loans that were modified as troubled debt restructurings within the prior twelve months which subsequently defaulted during the three and six months ended June 30, 2016. There were no such loans that defaulted during the three and six months ended June 30, 2017. CTBI considers a loan in default when it is 90 days or more past due or transferred to nonaccrual. (in thousands) Three Months Ended June 30, 2016 Six Months Ended June 30, 2016 Number of Loans Recorded Balance Number of Loans Recorded Balance Commercial: Commercial secured by real estate 0 $ 0 1 $ 510 Commercial other 0 0 1 358 Total defaulted restructured loans 0 $ 0 2 $ 868

Allowance for Loan and Lease Lo

Allowance for Loan and Lease Losses	6 Months Ended
	Jun. 30, 2017
Allowance for Loan and Lease Losses [Abstract]
Allowance for Loan and Lease Losses	Note 5 – Allowance for Loan and Lease Losses The following tables present the balance in the allowance for loan and lease losses (“ALLL”) and the recorded investment in loans based on portfolio segment and impairment method as of June 30, 2017, December 31, 2016 and June 30, 2016: Three Months Ended June 30, 2017 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 644 $ 14,177 $ 40 $ 4,736 $ 571 $ 5,877 $ 757 $ 1,844 $ 7,067 $ 35,713 Provision charged to expense 22 1,435 (7 ) 599 10 (128 ) (11 ) 102 742 2,764 Losses charged off 0 (318 ) 0 (417 ) 0 (97 ) 0 (239 ) (1,118 ) (2,189 ) Recoveries 3 5 0 75 0 10 1 159 592 845 Ending balance $ 669 $ 15,299 $ 33 $ 4,993 $ 581 $ 5,662 $ 747 $ 1,866 $ 7,283 $ 37,133 Ending balance: Individually evaluated for impairment $ 25 $ 1,227 $ 0 $ 67 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,319 Collectively evaluated for impairment $ 644 $ 14,072 $ 33 $ 4,926 $ 581 $ 5,662 $ 747 $ 1,866 $ 7,283 $ 35,814 Loans Ending balance: Individually evaluated for impairment $ 4,860 $ 32,240 $ 130 $ 10,850 $ 846 $ 1,803 $ 0 $ 0 $ 0 $ 50,729 Collectively evaluated for impairment $ 67,194 $ 1,146,989 $ 4,773 $ 341,323 $ 57,720 $ 706,664 $ 93,721 $ 135,228 $ 483,001 $ 3,036,613 Six Months Ended June 30, 2017 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 884 $ 14,191 $ 42 $ 4,656 $ 629 $ 6,027 $ 774 $ 1,885 $ 6,845 $ 35,933 Provision charged to expense (220 ) 1,624 (9 ) 1,019 (48 ) (275 ) (27 ) 196 1,733 3,993 Losses charged off (4 ) (528 ) 0 (836 ) 0 (164 ) (3 ) (509 ) (2,636 ) (4,680 ) Recoveries 9 12 0 154 0 74 3 294 1,341 1,887 Ending balance $ 669 $ 15,299 $ 33 $ 4,993 $ 581 $ 5,662 $ 747 $ 1,866 $ 7,283 $ 37,133 Ending balance: Individually evaluated for impairment $ 25 $ 1,227 $ 0 $ 67 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,319 Collectively evaluated for impairment $ 644 $ 14,072 $ 33 $ 4,926 $ 581 $ 5,662 $ 747 $ 1,866 $ 7,283 $ 35,814 Loans Ending balance: Individually evaluated for impairment $ 4,860 $ 32,240 $ 130 $ 10,850 $ 846 $ 1,803 $ 0 $ 0 $ 0 $ 50,729 Collectively evaluated for impairment $ 67,194 $ 1,146,989 $ 4,773 $ 341,323 $ 57,720 $ 706,664 $ 93,721 $ 135,228 $ 483,001 $ 3,036,613 Three Months Ended June 30, 2016 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 1,983 $ 14,798 $ 70 $ 4,247 $ 548 $ 6,497 $ 824 $ 1,603 $ 5,759 $ 36,329 Provision charged to expense (534 ) 664 24 643 132 16 4 316 608 1,873 Losses charged off (16 ) (1,029 ) 0 (621 ) (123 ) (171 ) (11 ) (393 ) (938 ) (3,302 ) Recoveries 4 5 0 161 1 30 2 108 486 797 Ending balance $ 1,437 $ 14,438 $ 94 $ 4,430 $ 558 $ 6,372 $ 819 $ 1,634 $ 5,915 $ 35,697 Ending balance: Individually evaluated for impairment $ 287 $ 720 $ 0 $ 330 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,337 Collectively evaluated for impairment $ 1,150 $ 13,718 $ 94 $ 4,100 $ 558 $ 6,372 $ 819 $ 1,634 $ 5,915 $ 34,360 Loans Ending balance: Individually evaluated for impairment $ 6,662 $ 32,848 $ 0 $ 11,998 $ 0 $ 1,761 $ 0 $ 0 $ 0 $ 53,269 Collectively evaluated for impairment $ 62,351 $ 1,046,481 $ 7,353 $ 354,975 $ 58,973 $ 706,699 $ 89,185 $ 129,291 $ 422,808 $ 2,878,116 Six Months Ended June 30, 2016 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,199 $ 14,434 $ 79 $ 4,225 $ 550 $ 6,678 $ 839 $ 1,594 $ 5,496 $ 36,094 Provision charged to expense (754 ) 1,140 15 972 136 110 (4 ) 498 1,525 3,638 Losses charged off (16 ) (1,186 ) 0 (1,045 ) (131 ) (483 ) (21 ) (689 ) (2,196 ) (5,767 ) Recoveries 8 50 0 278 3 67 5 231 1,090 1,732 Ending balance $ 1,437 $ 14,438 $ 94 $ 4,430 $ 558 $ 6,372 $ 819 $ 1,634 $ 5,915 $ 35,697 Ending balance: Individually evaluated for impairment $ 287 $ 720 $ 0 $ 330 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,337 Collectively evaluated for impairment $ 1,150 $ 13,718 $ 94 $ 4,100 $ 558 $ 6,372 $ 819 $ 1,634 $ 5,915 $ 34,360 Loans Ending balance: Individually evaluated for impairment $ 6,662 $ 32,848 $ 0 $ 11,998 $ 0 $ 1,761 $ 0 $ 0 $ 0 $ 53,269 Collectively evaluated for impairment $ 62,351 $ 1,046,481 $ 7,353 $ 354,975 $ 58,973 $ 706,699 $ 89,185 $ 129,291 $ 422,808 $ 2,878,116 December 31, 2016 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,199 $ 14,434 $ 79 $ 4,225 $ 550 $ 6,678 $ 839 $ 1,594 $ 5,496 $ 36,094 Provision charged to expense (1,035 ) 1,220 (37 ) 2,128 264 291 (20 ) 912 4,149 7,872 Losses charged off (316 ) (1,641 ) 0 (2,136 ) (192 ) (1,043 ) (54 ) (1,236 ) (5,050 ) (11,668 ) Recoveries 36 178 0 439 7 101 9 615 2,250 3,635 Ending balance $ 884 $ 14,191 $ 42 $ 4,656 $ 629 $ 6,027 $ 774 $ 1,885 $ 6,845 $ 35,933 Ending balance: Individually evaluated for impairment $ 213 $ 1,035 $ 0 $ 65 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,313 Collectively evaluated for impairment $ 671 $ 13,156 $ 42 $ 4,591 $ 629 $ 6,027 $ 774 $ 1,885 $ 6,845 $ 34,620 Loans Ending balance: Individually evaluated for impairment $ 5,609 $ 33,756 $ 0 $ 11,354 $ 0 $ 1,483 $ 0 $ 0 $ 0 $ 52,202 Collectively evaluated for impairment $ 61,389 $ 1,051,672 $ 5,512 $ 338,805 $ 57,966 $ 701,486 $ 91,511 $ 133,093 $ 444,735 $ 2,886,169

Other Real Estate Owned

Other Real Estate Owned	6 Months Ended
	Jun. 30, 2017
Other Real Estate Owned [Abstract]
Other Real Estate Owned	Note 6 – Other Real Estate Owned Activity for other real estate owned was as follows: Three Months Ended Six Months Ended June 30 June 30 (in thousands) 2017 2016 2017 2016 Beginning balance of other real estate owned $ 35,812 $ 38,985 $ 35,856 $ 40,674 New assets acquired 577 1,960 1,581 3,251 Capitalized costs 0 0 0 0 Fair value adjustments (1,449 ) (91 ) (1,987 ) (224 ) Sale of assets (2,155 ) (3,114 ) (2,665 ) (5,961 ) Ending balance of other real estate owned $ 32,785 $ 37,740 $ 32,785 $ 37,740 Included in other real estate owned at June 30, 2017 is a $148 thousand property which was not acquired through foreclosure. As a result of the relocation of our Campbellsville First Street branch to the Bypass location in 2017, the First Street property has been listed for sale and was booked into other real estate owned. Foreclosed properties at June 30, 2017 were $32.6 million. Carrying costs and fair value adjustments associated with foreclosed properties for the three months ended June 30, 2017 and 2016 were $1.8 million and $0.5 million, respectively. Carrying costs and fair value adjustments associated with foreclosed properties for the six months ended June 30, 2017 and 2016 were $2.7 million and $1.0 million. The major classifications of foreclosed properties are shown in the following table: (in thousands) June 30 2017 December 31 2016 1-4 family $ 5,756 $ 6,210 Agricultural/farmland 90 93 Construction/land development/other 18,074 20,778 Multifamily 176 270 Non-farm/non-residential 8,542 8,505 Total foreclosed properties $ 32,638 $ 35,856

Repurchase Agreements

Repurchase Agreements	6 Months Ended
	Jun. 30, 2017
Repurchase Agreements [Abstract]
Repurchase Agreements	Note 7 – Repurchase Agreements We utilize securities sold under agreements to repurchase to facilitate the needs of our customers and provide additional funding to our balance sheet. Repurchase agreements are transactions whereby we offer to sell to a counterparty an undivided interest in an eligible security at an agreed upon purchase price, and which obligates CTBI to repurchase the security on an agreed upon date at an agreed upon repurchase price plus interest at an agreed upon rate. Securities sold under agreements to repurchase are recorded at the amount of cash received in connection with the transaction and are reflected in the accompanying consolidated balance sheets. We monitor collateral levels on a continuous basis and maintain records of each transaction specifically describing the applicable security and the counterparty’s fractional interest in that security, and we segregate the security from its general assets in accordance with regulations governing custodial holdings of securities. The primary risk with our repurchase agreements is market risk associated with the securities securing the transactions, as we may be required to provide additional collateral based on fair value changes of the underlying securities. Securities pledged as collateral under repurchase agreements are maintained with our safekeeping agents. The carrying value of investment securities available-for-sale pledged as collateral under repurchase agreements totaled $297.8 million and $302.3 million at June 30, 2017 and December 31, 2016, respectively. The remaining contractual maturity of the securities sold under agreements to repurchase by class of collateral pledged included in the accompanying consolidated balance sheets as of June 30, 2017 and December 31, 2016 is presented in the following tables: June 30, 2017 Remaining Contractual Maturity of the Agreements (in thousands) Overnight and Up to 30 days 30-90 days Greater Than Total Repurchase agreements and U.S. Treasury and government agencies $ 29,137 $ 4,871 $ 21,050 $ 59,379 $ 114,437 State and political subdivisions 58,845 2,261 3,297 7,365 71,768 U.S. government sponsored agency mortgage-backed securities 24,138 3,868 12,653 30,344 71,003 Total $ 112,120 $ 11,000 $ 37,000 $ 97,088 $ 257,208 December 31, 2016 Remaining Contractual Maturity of the Agreements (in thousands) Overnight and Up to 30 days 30-90 days Greater Than Total Repurchase agreements and U.S. Treasury and government agencies $ 17,249 $ 0 $ 14,349 $ 73,076 $ 104,674 State and political subdivisions 55,354 0 1,998 10,272 67,624 U.S. government sponsored agency mortgage-backed securities 23,386 0 8,003 47,378 78,767 Total $ 95,989 $ 0 $ 24,350 $ 130,726 $ 251,065

Fair Market Value of Financial

Fair Market Value of Financial Assets and Liabilities	6 Months Ended
	Jun. 30, 2017
Fair Market Value of Financial Assets and Liabilities [Abstract]
Fair Market Value of Financial Assets and Liabilities	Note 8 – Fair Market Value of Financial Assets and Liabilities Fair Value Measurements ASC 820, Fair Value Measurements Level 1 Inputs – Quoted prices in active markets for identical assets or liabilities. Level 2 Inputs – Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability, such as interest rates and yield curves that are observable at commonly quoted intervals. Level 3 Inputs – Unobservable inputs for determining the fair values of assets or liabilities that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities. Recurring Measurements The following tables present the fair value measurements of assets recognized in the accompanying balance sheets measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016 and indicate the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at June 30, 2017 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – recurring basis Available-for-sale securities: U.S. Treasury and government agencies $ 236,058 $ 80,195 $ 155,863 $ 0 State and political subdivisions 131,942 0 131,942 0 U.S. government sponsored agenc y mortgage-backed securities 217,872 0 217,872 0 CRA investment funds 24,496 24,496 0 0 Mortgage servicing rights 3,304 0 0 3,304 Fair Value Measurements at December 31, 2016 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – recurring basis Available-for-sale securities: U.S. Treasury and government agencies $ 222,464 $ 44,934 $ 177,530 $ 0 State and political subdivisions 133,516 0 133,516 0 U.S. government sponsored agenc y mortgage-backed securities 225,056 0 225,056 0 CRA investment funds 24,358 24,358 0 0 Mortgage servicing rights 3,433 0 0 3,433 Following is a description of the valuation methodologies and inputs used for assets measured at fair value on a recurring basis and recognized in the accompanying balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy. These valuation methodologies were applied to all of CTBI’s financial assets carried at fair value. CTBI had no liabilities measured and recorded at fair value as of June 30, 2017 and December 31, 2016. There have been no significant changes in the valuation techniques during the quarter or six months ended June 30, 2017. For assets classified within Level 3 of the fair value hierarchy, the process used to develop the reported fair value is described below. Available-for-Sale Securities Securities classified as available-for-sale are reported at fair value on a recurring basis. U.S. Treasury and government agencies and CTBI’s CRA investment funds are classified as Level 1 of the valuation hierarchy where quoted market prices are available in the active market on which the individual securities are traded. If quoted market prices are not available, CTBI obtains fair value measurements from an independent pricing service, such as Interactive Data, which utilizes pricing models to determine fair value measurement. CTBI reviews the pricing quarterly to verify the reasonableness of the pricing. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other factors. U.S. Treasury and government agencies, state and political subdivisions, and U.S. government sponsored agency mortgage-backed securities are classified as Level 2 inputs. In certain cases where Level 1 or Level 2 inputs are not available, securities are classified within Level 3 of the hierarchy. Fair value determinations for Level 3 measurements are estimated on a quarterly basis where assumptions used are reviewed to ensure the estimated fair value complies with accounting standards generally accepted in the United States. As of June 30, 2017 and December 31, 2016, CTBI does not own any securities valued using Level 3 inputs. Mortgage Servicing Rights Mortgage servicing rights do not trade in an active, open market with readily observable prices. CTBI reports mortgage servicing rights at fair value on a recurring basis with subsequent remeasurement of MSRs based on change in fair value. In determining fair value, CTBI utilizes the expertise of an independent third party. Accordingly, fair value is determined by the independent third party by utilizing assumptions about factors such as mortgage interest rates, discount rates, mortgage loan prepayment speeds, market trends and industry demand. Due to the nature of the valuation inputs, mortgage servicing rights are classified within Level 3 of the hierarchy. Fair value determinations for Level 3 measurements of mortgage servicing rights are tested for impairment on a quarterly basis where assumptions used are reviewed to ensure the estimated fair value complies with accounting standards generally accepted in the United States. See the table below for inputs and valuation techniques used for Level 3 mortgage servicing rights. Transfers between Levels There were no transfers between Levels 1, 2, and 3 as of June 30, 2017. Level 3 Reconciliation Following is a reconciliation of the beginning and ending balances of recurring fair value measurements recognized in the accompanying balance sheet using significant unobservable (Level 3) inputs for the three and six months ended June 30, 2017 and 2016: Mortgage Servicing Rights Three Months Ended Six Months Ended June 30 June 30 (in thousands) 2017 2016 2017 2016 Beginning balance $ 3,474 $ 2,908 $ 3,433 $ 3,236 Total recognized losses Included in net income (163 ) (160 ) (78 ) (540 ) Issues 88 127 171 221 Settlements (95 ) (78 ) (222 ) (120 ) Ending balance $ 3,304 $ 2,797 $ 3,304 $ 2,797 Total losses for the period included in net income attributable to the change in unrealized gains or losses related to assets still held at the reporting date $ (163 ) $ (160 ) $ (78 ) $ (540 ) Realized and unrealized gains and losses for items reflected in the table above are included in net income in the consolidated statements of income as follows: Noninterest Income Three Months Ended Six Months Ended June 30 June 30 (in thousands) 2017 2016 2017 2016 Total losses $ (258 ) $ (238 ) $ (301 ) $ (660 ) Nonrecurring Measurements The following tables present the fair value measurements of assets recognized in the accompanying balance sheets measured at fair value on a nonrecurring basis as of June 30, 2017 and December 31, 2016 and indicate the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at June 30, 2017 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – nonrecurring basis Impaired loans (collateral dependent) $ 2,352 $ 0 $ 0 $ 2,352 Other real estate/assets owned 17,166 0 0 17,166 Fair Value Measurements at December 31, 2016 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – nonrecurring basis Impaired loans (collateral dependent) $ 5,506 $ 0 $ 0 $ 5,506 Other real estate/assets owned 4,388 0 0 4,388 Following is a description of the valuation methodologies and inputs used for assets measured at fair value on a nonrecurring basis and recognized in the accompanying balance sheet, as well as the general classification of such assets pursuant to the valuation hierarchy. For assets classified within Level 3 of the fair value hierarchy, the process used to develop the reported fair value is described below. Impaired Loans (Collateral Dependent) The estimated fair value of collateral-dependent impaired loans is based on the appraised fair value of the collateral, less estimated cost to sell. Collateral-dependent impaired loans are classified within Level 3 of the fair value hierarchy. CTBI considers the appraisal or evaluation as the starting point for determining fair value and then considers other factors and events in the environment that may affect the fair value. Appraisals of the collateral underlying collateral-dependent loans are obtained when the loan is determined to be collateral-dependent and subsequently as deemed necessary by the Chief Credit Officer. Appraisals are reviewed for accuracy and consistency by the Chief Credit Officer. Appraisers are selected from the list of approved appraisers maintained by management. The appraised values are reduced by discounts to consider lack of marketability and estimated cost to sell if repayment or satisfaction of the loan is dependent on the sale of the collateral. These discounts and estimates are developed by the Chief Credit Officer by comparison to historical results. Loans considered impaired under ASC 310-35, Impairment of a Loan, Other Real Estate Owned In accordance with the provisions of ASC 360, Property, Plant, and Equipment, Our policy for determining the frequency of periodic reviews is based upon consideration of the specific properties and the known or perceived market fluctuations in a particular market and is typically between 12 and 18 months but generally not more than 24 months. Appraisers are selected from the list of approved appraisers maintained by management. Unobservable (Level 3) Inputs The following tables present quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements at June 30, 2017 and December 31, 2016. (in thousands) Quantitative Information about Level 3 Fair Value Measurements Fair Value at June 30, 2017 Valuation Technique(s) Unobservable Input Range (Weighted Average) Mortgage servicing rights $ 3,304 Discount cash flows, computer pricing model Constant prepayment rate 7.0% - 29.4% (10.6%) Probability of default 0.0% - 100.0% (3.9%) Discount rate 10.0% - 11.5% (10.1%) Impaired loans (collateral-dependent) $ 2,352 Market comparable properties Marketability discount 5.8% - 100.0% (43.5%) Other real estate/assets owned $ 17,166 Market comparable properties Comparability adjustments 6.0% - 37.5% (11.2%) (in thousands) Quantitative Information about Level 3 Fair Value Measurements Fair Value at December 31, 2016 Valuation Technique(s) Unobservable Input Range (Weighted Average) Mortgage servicing rights $ 3,433 Discount cash flows, computer pricing model Constant prepayment rate 7.0% - 27.0% (9.5%) Probability of default 0.0% - 100.0% (3.0%) Discount rate 10.0% - 11.5% (10.1%) Impaired loans (collateral-dependent) $ 5,506 Market comparable properties Marketability discount 0.0% - 100.0% (33.7%) Other real estate/assets owned $ 4,388 Market comparable properties Comparability adjustments 10.0% - 100.0% (14.9%) Sensitivity of Significant Unobservable Inputs The following is a discussion of the sensitivity of significant unobservable inputs, the interrelationships between those inputs and other unobservable inputs used in recurring fair value measurement and of how those inputs might magnify or mitigate the effect of changes in the unobservable inputs on the fair value measurement. Mortgage Servicing Rights Market value for mortgage servicing rights is derived based on unobservable inputs, such as prepayment speeds of the underlying loans generated using the Andrew Davidson Prepayment Model, FHLMC/FNMA guidelines, the weighted average life of the loan, the discount rate, the weighted average coupon, and the weighted average default rate. Significant increases (decreases) in either of those inputs in isolation would result in a significantly lower (higher) fair value measurement. Generally, a change in the assumption used for prepayment speeds is accompanied by a directionally opposite change in the assumption for interest rates. Fair Value of Financial Instruments The following table presents estimated fair value of CTBI’s financial instruments as of June 30, 2017 and indicates the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at June 30, 2017 Using (in thousands) Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 127,830 $ 127,830 $ 0 $ 0 Certificates of deposit in other banks 12,260 0 12,223 0 Securities available-for-sale 610,368 104,691 505,677 0 Securities held-to-maturity 858 0 858 0 Loans held for sale 4,624 4,727 0 0 Loans, net 3,050,209 0 0 3,028,478 Federal Home Loan Bank stock 17,927 0 17,927 0 Federal Reserve Bank stock 4,887 0 4,887 0 Accrued interest receivable 11,329 0 11,329 0 Mortgage servicing rights 3,304 0 0 3,304 Financial liabilities: Deposits $ 3,105,610 $ 782,864 $ 2,324,415 $ 0 Repurchase agreements 257,208 0 0 257,148 Federal funds purchased 7,220 0 7,220 0 Advances from Federal Home Loan Bank 100,894 0 100,895 0 Long-term debt 59,341 0 0 49,073 Accrued interest payable 2,137 0 2,137 0 Unrecognized financial instruments: Letters of credit $ 0 $ 0 $ 0 $ 0 Commitments to extend credit 0 0 0 0 Forward sale commitments 0 0 0 0 The following table presents estimated fair value of CTBI’s financial instruments as of December 31, 2016 and indicates the level within the fair value hierarchy of the valuation techniques. (in thousands) Fair Value Measurements at December 31, 2016 Using Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 144,716 $ 144,716 $ 0 $ 0 Certificates of deposit in other banks 980 0 982 0 Securities available-for-sale 605,394 69,292 536,102 0 Securities held-to-maturity 866 0 867 0 Loans held for sale 1,244 1,260 0 0 Loans, net 2,902,438 0 0 2,882,348 Federal Home Loan Bank stock 17,927 0 17,927 0 Federal Reserve Bank stock 4,887 0 4,887 0 Accrued interest receivable 11,922 0 11,922 0 Mortgage servicing rights 3,433 0 0 3,433 Financial liabilities: Deposits $ 3,081,308 $ 767,918 $ 2,321,690 $ 0 Repurchase agreements 251,065 0 0 250,820 Federal funds purchased 4,816 0 4,816 0 Advances from Federal Home Loan Bank 944 0 1,009 0 Long-term debt 61,341 0 0 49,073 Accrued interest payable 1,200 0 1,200 0 Unrecognized financial instruments: Letters of credit $ 0 $ 0 $ 0 $ 0 Commitments to extend credit 0 0 0 0 Forward sale commitments 0 0 0 0 The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value: Cash and cash equivalents – The carrying amount approximates fair value. Certificates of deposit in other banks – Fair values are based on quoted market prices or dealer quotes for similar instruments. Securities held-to-maturity – Fair values are based on quoted market prices, if available. If a quoted price is not available, fair value is estimated using quoted prices for similar securities. The fair value estimate is provided to management from a third party using modeling assumptions specific to each type of security that are reviewed and approved by management. Quarterly sampling of fair values provided by additional third parties supplement the fair value review process. Loans held for sale – The fair value is predetermined at origination based on sale price. Loans (net of the allowance for loan and lease losses) – The fair value of fixed rate loans and variable rate mortgage loans is estimated by discounting the future cash flows using current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities. For other variable rate loans, the carrying amount approximates fair value. Federal Home Loan Bank stock – The carrying value of Federal Home Loan Bank stock approximates fair value based on the redemption provisions of the Federal Home Loan Bank. Federal Reserve Bank stock – The carrying value of Federal Reserve Bank stock approximates fair value based on the redemption provisions of the Federal Reserve Bank. Accrued interest receivable – The carrying amount approximates fair value. Deposits – The fair value of fixed maturity time deposits is estimated by discounting the future cash flows using the rates currently offered for deposits of similar remaining maturities. For deposits including demand deposits, savings accounts, NOW accounts, and certain money market accounts, the carrying value approximates fair value. Repurchase agreements – The fair value is estimated by discounting future cash flows using current rates. Federal funds purchased – The carrying amount approximates fair value. Advances from Federal Home Loan Bank – The fair value of these fixed-maturity advances is estimated by discounting future cash flows using rates currently offered for advances of similar remaining maturities. Long-term debt – The fair value is estimated by discounting future cash flows using current rates. Accrued interest payable – The carrying amount approximates fair value. Commitments to originate loans, forward sale commitments, letters of credit, and lines of credit – The fair value of commitments to originate loans is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair value of forward sale commitments is estimated based on current market prices for loans of similar terms and credit quality. The fair values of letters of credit and lines of credit are based on fees currently charged for similar agreements or on the estimated cost to terminate or otherwise settle the obligations with the counterparties at the reporting date. The fair values of these commitments are not material.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Earnings Per Share	Note 9 – Earnings Per Share The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended Six Months Ended June 30 June 30 (in thousands except per share data) 2017 2016 2017 2016 Numerator: Net income $ 11,541 $ 11,566 $ 22,818 $ 23,168 Denominator: Basic earnings per share: Weighted average shares 17,626 17,530 17,621 17,521 Diluted earnings per share: Effect of dilutive stock options and restricted stock grants 19 12 20 17 Adjusted weighted average shares 17,645 17,542 17,641 17,538 Earnings per share: Basic earnings per share $ 0.65 $ 0.66 $ 1.29 $ 1.32 Diluted earnings per share 0.65 0.66 1.29 1.32 There were no options to purchase common shares that were excluded from the diluted calculations above for the three and six months ended June 30, 2017. In addition to in-the-money stock options, unvested restricted stock grants were also used in the calculation of diluted earnings per share based on the treasury method. Options to purchase 67,953 common shares at a weighted average price of $35.31 were excluded from the diluted calculations above for the six months ended June 30, 2016, because the exercise prices on the options were greater than the average market price for the period. No options were excluded for the three months ended June 30, 2016.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2017
Accumulated Other Comprehensive Income [Abstract]
Accumulated Other Comprehensive Income	Note 10 – Accumulated Other Comprehensive Income Unrealized gains (losses) on AFS securities Amounts reclassified from accumulated other comprehensive income (AOCI) and the affected line items in the statements of income during the three and six months ended June 30, 2017 and 2016 were: Amounts Reclassified from AOCI (in thousands) Three Months Ended June 30 Six Months Ended June 30 2017 2016 2017 2016 Affected line item in the statements of income Securities gains (losses) $ 18 $ (4 ) $ 10 $ 64 Tax expense (benefit) 6 (1 ) 4 23 Total reclassifications out of AOCI $ 12 $ (3 ) $ 6 $ 41

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2017
Commitments and Contingencies [Abstract]
Commitments and Contingencies [Text Block]	Note 11 – Commitments and Contingencies CTB will be required to make certain customer reimbursements related to two deposit add-on products. As previously discussed in CTBI’s most recent Form 10-K and Form 10-Q, management established a related accrual in 2014, which was not considered material. The time period and amount of the reimbursements have not yet been determined; therefore, the actual amount may materially vary from the amount management has evaluated as most likely at June 30, 2017.

Summary of Significant Accoun17

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2017
Summary of Significant Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation –
Reclassifications	Reclassifications –
New Accounting Standards	New Accounting Standards Ø Financial Instruments – Overall Financial Instruments – Overall (Subtopic 825-10) Ø Leases – In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) . While we expect the impact of this ASU to be significant, we have not finalized our calculation of the estimated amounts as we are currently evaluating certain significant variables within the calculation including the impact of individual renewal options and applicable discount rates for each individual lease. Ø Investments—Equity Method and Joint Ventures: Simplifying the Transition to the Equity Method of Accounting FASB issued ASU No. 2016-07, Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting. The amendments affect all entities that have an investment that becomes qualified for the equity method of accounting as a result of an increase in the level of ownership interest or degree of influence. The amendments eliminate the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. The amendments require that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The amendments should be applied prospectively upon their effective date to increases in the level of ownership interest or degree of influence that result in the adoption of the equity method. The amendments became effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016 and did not . Ø Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting FASB issued Accounting Standards Update (ASU) No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The amendments are intended to improve the accounting for employee share-based payments and affect all organizations that issue share-based payment awards to their employees. Several aspects of the accounting for share-based payment award transactions are simplified, including: (a) (b) (c) For public companies, the amendments were effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Ø Revenue from Contracts with Customers – Revenue from Contracts with Customers Ø Accounting for Credit Losses Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. For purchased financial assets with a more-than-insignificant amount of credit deterioration since origination (“PCD assets”) that are measured at amortized cost, the initial allowance for credit losses is added to the purchase price rather than being reported as a credit loss expense. Subsequent changes in the allowance for credit losses on PCD assets are recognized through the statement of income as a credit loss expense. Credit losses relating to available-for-sale debt securities will be recorded through an allowance for credit losses rather than as a direct write-down to the security. ASU 2016-13 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. CTBI has an implementation team working through the provisions of ASU 2016-13 including assessing the impact on its accounting and disclosures. Ø Statement of Cash Flows Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. Stakeholders indicated that there is diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows under Topic 230, Statement of Cash Flows, and other Topics. This ASU addresses the following eight specific cash flow issues: Debt prepayment or debt extinguishment costs; settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies (COLIs) (including bank-owned life insurance policies (BOLIs)); distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. The amendments in this Update apply to all entities that are required to present a statement of cash flows under Topic 230. This Update is the final version of Proposed Accounting Standards Update EITF-15F— Statement of Cash Flows—Classification of Certain Cash Receipts and Cash Payments (Topic 230) , which has been deleted. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The amendments in this Update should be applied using a retrospective transition method to each period presented. If it is impracticable to apply the amendments retrospectively for some of the issues, the amendments for those issues would be applied prospectively as of the earliest date practicable. Management intends to adopt this ASU effective January 1, 2018, and we do not expect Ø Simplifying the Test for Goodwill Impairment Intangibles – Goodwill and Other (Topic 350) – Simplifying the Test for Goodwill Impairment Ø Receivables – Nonrefundable Fees and Other Costs: Premium Amortization on Purchased Callable Debt Securities Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities
Critical Accounting Policies and Estimates	Critical Accounting Policies and Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires the appropriate application of certain accounting policies, many of which require us to make estimates and assumptions about future events and their impact on amounts reported in our consolidated financial statements and related notes. Since future events and their impact cannot be determined with certainty, the actual results will inevitably differ from our estimates. Such differences could be material to the consolidated financial statements. We believe the application of accounting policies and the estimates required therein are reasonable. These accounting policies and estimates are constantly reevaluated, and adjustments are made when facts and circumstances dictate a change. Historically, we have found our application of accounting policies to be appropriate, and actual results have not differed materially from those determined using necessary estimates.
Investments	Investments Investment Securities a. Trading securities . . b. Available-for-sale securities. Investments not classified as trading securities (nor as held-to-maturity securities) shall be classified as available-for-sale securities. We do not have any securities that are classified as trading securities. Available-for-sale securities are reported at fair value, with unrealized gains and losses included as a separate component of shareholders’ equity, net of tax. If declines in fair value are other than temporary, the carrying value of the securities is written down to fair value as a realized loss with a charge to income for the portion attributable to credit losses and a charge to other comprehensive income for the portion that is not credit related. Gains or losses on disposition of securities are computed by specific identification for all securities except for shares in mutual funds, which are computed by average cost. Interest and dividend income, adjusted by amortization of purchase premium or discount, is included in earnings. When the fair value of a security is below its amortized cost, and depending on the length of time the condition exists and the extent the fair market value is below amortized cost, additional analysis is performed to determine whether an other than temporary impairment condition exists. Available-for-sale and held-to-maturity securities are analyzed quarterly for possible other than temporary impairment. The analysis considers (i) whether we have the intent to sell our securities prior to recovery and/or maturity and (ii) whether it is more likely than not that we will not have to sell our securities prior to recovery and/or maturity. Often, the information available to conduct these assessments is limited and rapidly changing, making estimates of fair value subject to judgment. If actual information or conditions are different than estimated, the extent of the impairment of the security may be different than previously estimated, which could have a material effect on the CTBI’s results of operations and financial condition.
Loans	Loans A restructuring of a debt constitutes a troubled debt restructuring if the creditor for economic or legal reasons related to the debtor’s financial difficulties grants a concession to the debtor that it would not otherwise consider. Loan origination and commitment fees and certain direct loan origination costs are deferred and the net amount amortized over the estimated life of the related loans, leases, or commitments as a yield adjustment.
Allowance for Loan and Lease Losses	Allowance for Loan and Lease Losses We utilize an internal risk grading system for commercial credits. Those larger commercial credits that exhibit probable or observed credit weaknesses are subject to individual review. The borrower’s cash flow, adequacy of collateral coverage, and other options available to CTBI, including legal remedies, are evaluated. The review of individual loans includes those loans that are impaired as defined by ASC 310-10-35, Impairment of a Loan A loan is considered impaired when, based on current information and events, it is probable that CTBI will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Homogenous loans, such as consumer installment, residential mortgages, and home equity lines are not individually risk graded. The associated ALLL for these loans is measured under ASC 450, Contingencies When any secured commercial loan is considered uncollectable, whether past due or not, a current assessment of the value of the underlying collateral is made. If the balance of the loan exceeds the fair value of the collateral, the loan is placed on nonaccrual and the loan is charged down to the value of the collateral less estimated cost to sell or a specific reserve equal to the difference between book value of the loan and the fair value assigned to the collateral is created until such time as the loan is foreclosed. When the foreclosed collateral has been legally assigned to CTBI, the estimated fair value of the collateral less costs to sell is then transferred to other real estate owned or other repossessed assets, and a charge-off is taken for any remaining balance. When any unsecured commercial loan is considered uncollectable the loan is charged off no later than at 90 days past due. All closed-end consumer loans (excluding conventional 1-4 family residential loans and installment and revolving loans secured by real estate) are charged off no later than 120 days (5 monthly payments) delinquent. If a loan is considered uncollectable, it is charged off earlier than 120 days delinquent. For conventional 1-4 family residential loans and installment and revolving loans secured by real estate, when a loan is 90 days past due, a current assessment of the value of the real estate is made. If the balance of the loan exceeds the fair value of the property, the loan is placed on nonaccrual. Foreclosure proceedings are normally initiated after 120 days. When the foreclosed property has been legally assigned to CTBI, the fair value less estimated costs to sell is transferred to other real estate owned and the remaining balance is taken as a charge-off. Historical loss rates for loans are adjusted for significant factors that, in management’s judgment, reflect the impact of any current conditions on loss recognition. We use twelve rolling quarters for our historical loss rate analysis. Factors that we consider include delinquency trends, current economic conditions and trends, strength of supervision and administration of the loan portfolio, levels of underperforming loans, level of recoveries to prior year’s charge-offs, trends in loan losses, industry concentrations and their relative strengths, amount of unsecured loans, and underwriting exceptions. Management continually reevaluates the other subjective factors included in its ALLL analysis.
Other Real Estate Owned	Other Real Estate Owned All revenues and expenses related to the carrying of other real estate owned are recognized through the income statement.
Income Taxes	Income Taxes

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2017
Stock-Based Compensation [Abstract]
Schedule of Weighted Average Assumptions Used for Estimating the Grant-Date Fair Value of Each Option Grant	The fair value of stock options granted during the six months ended June 30, 2016 were established at the date of grant using a Black-Scholes option pricing model with the weighted average assumptions as follows: Six Months Ended June 30, 2016 Expected dividend yield 3.70 % Risk-free interest rate 1.45 % Expected volatility 34.34 % Expected term (in years) 7.5 Weighted average fair value of options $ 6.82

Securities (Tables)

Securities (Tables)	6 Months Ended
	Jun. 30, 2017
Securities [Abstract]
Summary of Amortized Cost and Fair Value of Available-for-sale Securities	The amortized cost and fair value of securities at June 30, 2017 are summarized as follows: Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Treasury and government agencies $ 236,345 $ 173 $ (460 ) $ 236,058 State and political subdivisions 129,872 2,833 (763 ) 131,942 U.S. government sponsored agency mortgage-backed securities 219,961 836 (2,925 ) 217,872 Total debt securities 586,178 3,842 (4,148 ) 585,872 CRA investment funds 25,000 90 (594 ) 24,496 Total available-for-sale securities $ 611,178 $ 3,932 $ (4,742 ) $ 610,368 The amortized cost and fair value of securities at December 31, 2016 are summarized as follows: Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value U.S. Treasury and government agencies $ 223,014 $ 193 $ (743 ) $ 222,464 State and political subdivisions 133,351 1,957 (1,792 ) 133,516 U.S. government sponsored agency mortgage-backed securities 227,574 1,008 (3,526 ) 225,056 Total debt securities 583,939 3,158 (6,061 ) 581,036 CRA investment funds 25,000 76 (718 ) 24,358 Total available-for-sale securities $ 608,939 $ 3,234 $ (6,779 ) $ 605,394
Summary of Amortized Cost and Fair Value of Held-to-maturity Securities	The amortized cost and fair value of securities at June 30, 2017 are summarized as follows: Held-to-Maturity (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value State and political subdivisions $ 858 $ 0 $ 0 $ 858 Total held-to-maturity securities $ 858 $ 0 $ 0 $ 858 The amortized cost and fair value of securities at December 31, 2016 are summarized as follows: Held-to-Maturity (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value State and political subdivisions $ 866 $ 1 $ 0 $ 867 Total held-to-maturity securities $ 866 $ 1 $ 0 $ 867
Amortized Cost and Fair Value of Securities by Contractual Maturity	The amortized cost and fair value of securities at June 30, 2017 by contractual maturity are shown below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Available-for-Sale Held-to-Maturity (in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 69,861 $ 69,819 $ 0 $ 0 Due after one through five years 162,304 163,221 858 858 Due after five through ten years 51,203 52,067 0 0 Due after ten years 82,849 82,893 0 0 U.S. government sponsored agency mortgage-backed securities 219,961 217,872 0 0 Total debt securities 586,178 585,872 858 858 CRA investment funds 25,000 24,496 0 0 Total securities $ 611,178 $ 610,368 $ 858 $ 858
Available for Sale Securities and Held-to-Maturity Securities, Continuous Unrealized Loss Position	The following tables provide the amortized cost, gross unrealized losses, and fair market value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position as of June 30, 2017 that are not deemed to be other-than-temporarily impaired. There were no held-to-maturity securities that were deemed to be impaired as of June 30, 2017. Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Losses Fair Value Less Than 12 Months U.S. Treasury and government agencies $ 139,137 $ (419 ) $ 138,718 State and political subdivisions 26,970 (742 ) 26,228 U.S. government sponsored agency mortgage-backed securities 132,510 (2,076 ) 130,434 Total debt securities 298,617 (3,237 ) 295,380 CRA investment funds 17,500 (347 ) 17,153 Total <12 months temporarily impaired AFS securities 316,117 (3,584 ) 312,533 12 Months or More U.S. Treasury and government agencies 21,647 (41 ) 21,606 State and political subdivisions 2,383 (21 ) 2,362 U.S. government sponsored agency mortgage-backed securities 30,644 (849 ) 29,795 Total debt securities 54,674 (911 ) 53,763 CRA investment funds 5,000 (247 ) 4,753 Total ≥12 months temporarily impaired AFS securities 59,674 (1,158 ) 58,516 Total U.S. Treasury and government agencies 160,784 (460 ) 160,324 State and political subdivisions 29,353 (763 ) 28,590 U.S. government sponsored agency mortgage-backed securities 163,154 (2,925 ) 160,229 Total debt securities 353,291 (4,148 ) 349,143 CRA investment funds 22,500 (594 ) 21,906 Total temporarily impaired AFS securities $ 375,791 $ (4,742 ) $ 371,049 The following tables provide the amortized cost, gross unrealized losses, and fair market value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position as of December 31, 2016 that are not deemed to be other-than-temporarily impaired. There were no held-to-maturity securities that were deemed to be impaired as of December 31, 2016. Available-for-Sale (in thousands) Amortized Cost Gross Unrealized Losses Fair Value Less Than 12 Months U.S. Treasury and government agencies $ 158,732 $ (716 ) $ 158,016 State and political subdivisions 53,491 (1,780 ) 51,711 U.S. government sponsored agency mortgage-backed securities 135,939 (2,646 ) 133,293 Total debt securities 348,162 (5,142 ) 343,020 CRA investment funds 17,500 (444 ) 17,056 Total <12 months temporarily impaired AFS securities 365,662 (5,586 ) 360,076 12 Months or More U.S. Treasury and government agencies 1,880 (27 ) 1,853 State and political subdivisions 751 (12 ) 739 U.S. government sponsored agency mortgage-backed securities 31,132 (880 ) 30,252 Total debt securities 33,763 (919 ) 32,844 CRA investment funds 5,000 (274 ) 4,726 Total ≥12 months temporarily impaired AFS securities 38,763 (1,193 ) 37,570 Total U.S. Treasury and government agencies 160,612 (743 ) 159,869 State and political subdivisions 54,242 (1,792 ) 52,450 U.S. government sponsored agency mortgage-backed securities 167,071 (3,526 ) 163,545 Total debt securities 381,925 (6,061 ) 375,864 CRA investment funds 22,500 (718 ) 21,782 Total temporarily impaired AFS securities $ 404,425 $ (6,779 ) $ 397,646

Loans (Tables)

Loans (Tables)	6 Months Ended
	Jun. 30, 2017
Loans [Abstract]
Summary of Major Classification of Loans Net of Unearned Income, Deferred Loan Origination Costs and Net Premiums on Acquired Loans	Major classifications of loans, net of unearned income, deferred loan origination costs, and net premiums on acquired loans, are summarized as follows: (in thousands) June 30 2017 December 31 2016 Commercial construction $ 72,054 $ 66,998 Commercial secured by real estate 1,179,229 1,085,428 Equipment lease financing 4,903 5,512 Commercial other 352,173 350,159 Real estate construction 58,566 57,966 Real estate mortgage 708,467 702,969 Home equity 93,721 91,511 Consumer direct 135,228 133,093 Consumer indirect 483,001 444,735 Total loans $ 3,087,342 $ 2,938,371
Nonaccrual Loans Segregated by Class of Loans	Nonaccrual loans segregated by class of loans were as follows: (in thousands) June 30 2017 December 31 2016 Commercial: Commercial construction $ 1,328 $ 1,912 Commercial secured by real estate 8,713 6,326 Commercial other 1,404 1,559 Residential: Real estate construction 189 11 Real estate mortgage 7,461 6,260 Home equity 556 555 Total nonaccrual loans $ 19,651 $ 16,623
Bank's Loan Portfolio Aging Analysis, Segregated by Class	The following tables present CTBI’s loan portfolio aging analysis, segregated by class, as of June 30, 2017 and December 31, 2016: June 30, 2017 (in thousands) 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans 90+ and Accruing* Commercial: Commercial construction $ 0 $ 0 $ 1,352 $ 1,352 $ 70,702 $ 72,054 $ 24 Commercial secured by real estate 2,272 3,540 7,757 13,569 1,165,660 1,179,229 2,171 Equipment lease financing 0 0 130 130 4,773 4,903 130 Commercial other 513 420 1,123 2,056 350,117 352,173 235 Residential: Real estate construction 1,254 177 393 1,824 56,742 58,566 205 Real estate mortgage 950 4,113 11,270 16,333 692,134 708,467 5,042 Home equity 1,004 261 692 1,957 91,764 93,721 300 Consumer: Consumer direct 788 132 34 954 134,274 135,228 34 Consumer indirect 2,826 793 221 3,840 479,161 483,001 221 Total $ 9,607 $ 9,436 $ 22,972 $ 42,015 $ 3,045,327 $ 3,087,342 $ 8,362 December 31, 2016 (in thousands) 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans 90+ and Accruing* Commercial: Commercial construction $ 22 $ 0 $ 1,940 $ 1,962 $ 65,036 $ 66,998 $ 28 Commercial secured by real estate 2,033 478 8,847 11,358 1,074,070 1,085,428 3,015 Equipment lease financing 0 0 0 0 5,512 5,512 0 Commercial other 997 122 1,235 2,354 347,805 350,159 141 Residential: Real estate construction 707 42 152 901 57,065 57,966 152 Real estate mortgage 1,493 5,278 10,695 17,466 685,503 702,969 6,295 Home equity 829 288 905 2,022 89,489 91,511 467 Consumer: Consumer direct 873 265 68 1,206 131,887 133,093 68 Consumer indirect 3,288 851 681 4,820 439,915 444,735 681 Total $ 10,242 $ 7,324 $ 24,523 $ 42,089 $ 2,896,282 $ 2,938,371 $ 10,847 *90+ and Accruing are also included in 90+ Days Past Due column.
Credit Risk Profile of the Bank's Commercial Loan Portfolio Based on Rating Category and Payment Activity, Segregated by Class of Loans	The following tables present the credit risk profile of CTBI’s commercial loan portfolio based on rating category and payment activity, segregated by class of loans, as of June 30, 2017 and December 31, 2016: (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Leases Commercial Other Total June 30, 2017 Pass $ 62,033 $ 1,056,938 $ 4,667 $ 302,783 $ 1,426,421 Watch 3,988 64,594 0 30,861 99,443 OAEM 1,874 23,458 106 8,775 34,213 Substandard 3,981 33,882 130 9,389 47,382 Doubtful 178 357 0 365 900 Total $ 72,054 $ 1,179,229 $ 4,903 $ 352,173 $ 1,608,359 December 31, 2016 Pass $ 55,315 $ 975,383 $ 5,206 $ 299,301 $ 1,335,205 Watch 3,366 51,932 137 32,780 88,215 OAEM 2,535 25,772 169 7,913 36,389 Substandard 5,592 31,945 0 9,599 47,136 Doubtful 190 396 0 566 1,152 Total $ 66,998 $ 1,085,428 $ 5,512 $ 350,159 $ 1,508,097
Credit Risk Profile of Residential Real Estate and Consumer Loan Portfolio Based on Performing and Nonperforming Status Segregated by Class	The following tables present the credit risk profile of CTBI’s residential real estate and consumer loan portfolios based on performing or nonperforming status, segregated by class, as of June 30, 2017 and December 31, 2016: (in thousands) Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total June 30, 2017 Performing $ 58,172 $ 695,964 $ 92,865 $ 135,194 $ 482,780 $ 1,464,975 Nonperforming (1) 394 12,503 856 34 221 14,008 Total $ 58,566 $ 708,467 $ 93,721 $ 135,228 $ 483,001 $ 1,478,983 December 31, 2016 Performing $ 57,803 $ 690,414 $ 90,489 $ 133,025 $ 444,054 $ 1,415,785 Nonperforming (1) 163 12,555 1,022 68 681 14,489 Total $ 57,966 $ 702,969 $ 91,511 $ 133,093 $ 444,735 $ 1,430,274 (1) A loan is considered nonperforming if it is 90 days or more past due and/or on nonaccrual.
Impaired Loans, Average Investment in Impaired Loans, and Interest Income Recognized on Impaired Loans	The following table presents impaired loans, the average investment in impaired loans, and interest income recognized on impaired loans for the periods ended June 30, 2017, December 31, 2016, and June 30, 2016: June 30, 2017 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Loans without a specific valuation allowance: Commercial construction $ 4,707 $ 4,709 $ 0 Commercial secured by real estate 27,509 28,195 0 Equipment lease financing 130 130 0 Commercial other 10,719 12,619 0 Real estate construction 846 846 0 Real estate mortgage 1,803 1,803 0 Loans with a specific valuation allowance: Commercial construction 153 174 25 Commercial secured by real estate 4,731 5,833 1,227 Commercial other 131 134 67 Totals: Commercial construction 4,860 4,883 25 Commercial secured by real estate 32,240 34,028 1,227 Equipment lease financing 130 130 0 Commercial other 10,850 12,753 67 Real estate construction 846 846 0 Real estate mortgage 1,803 1,803 0 Total $ 50,729 $ 54,443 $ 1,319 Three Months Ended Six Months Ended June 30, 2017 June 30, 2017 (in thousands) Average Investment in Impaired Loans *Interest Income Recognized Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 5,041 $ 49 $ 5,101 $ 86 Commercial secured by real estate 27,858 343 28,252 704 Equipment lease financing 135 0 68 0 Commercial other 10,882 133 10,981 273 Real estate construction 846 0 423 0 Real estate mortgage 1,803 11 1,804 22 Loans with a specific valuation allowance: Commercial construction 153 0 157 0 Commercial secured by real estate 4,745 5 4,362 5 Commercial other 131 0 66 0 Totals: Commercial construction 5,194 49 5,258 86 Commercial secured by real estate 32,603 348 32,614 709 Equipment lease financing 135 0 68 0 Commercial other 11,013 133 11,047 273 Real estate construction 846 0 423 0 Real estate mortgage 1,803 11 1,804 22 Total $ 51,594 $ 541 $ 51,214 $ 1,090 December 31, 2016 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 4,102 $ 4,123 $ 0 $ 4,367 $ 218 Commercial secured by real estate 29,025 29,594 0 31,136 1,609 Commercial other 11,215 13,155 0 11,561 632 Real estate mortgage 1,483 1,483 0 1,691 52 Loans with a specific valuation allowance: Commercial construction 1,507 1,509 213 2,290 0 Commercial secured by real estate 4,731 5,885 1,035 4,151 19 Commercial other 139 139 65 483 0 Totals: Commercial construction 5,609 5,632 213 6,657 218 Commercial secured by real estate 33,756 35,479 1,035 35,287 1,628 Commercial other 11,354 13,294 65 12,044 632 Real estate mortgage 1,483 1,483 0 1,691 52 Total $ 52,202 $ 55,888 $ 1,313 $ 55,679 $ 2,530 June 30, 2016 (in thousands) Recorded Balance Unpaid Contractual Principal Balance Specific Allowance Loans without a specific valuation allowance: Commercial construction $ 4,455 $ 4,741 $ 0 Commercial secured by real estate 30,181 30,816 0 Commercial other 11,328 13,113 0 Real estate mortgage 1,761 1,761 0 Loans with a specific valuation allowance: Commercial construction 2,207 2,209 287 Commercial secured by real estate 2,667 3,721 720 Commercial other 670 683 330 Totals: Commercial construction 6,662 6,950 287 Commercial secured by real estate 32,848 34,537 720 Commercial other 11,998 13,796 330 Real estate mortgage 1,761 1,761 0 Total $ 53,269 $ 57,044 $ 1,337 Three Months Ended Six Months Ended June 30, 2016 June 30, 2016 (in thousands) Average Investment in Impaired Loans *Interest Income Recognized Average Investment in Impaired Loans *Interest Income Recognized Loans without a specific valuation allowance: Commercial construction $ 4,730 $ 56 $ 4,526 $ 105 Commercial secured by real estate 30,339 387 31,426 774 Commercial other 11,446 169 11,597 317 Real estate mortgage 1,764 14 1,893 30 Loans with a specific valuation allowance: Commercial construction 2,372 0 2,887 0 Commercial secured by real estate 3,598 0 4,163 18 Commercial other 667 0 693 0 Totals: Commercial construction 7,102 56 7,413 105 Commercial secured by real estate 33,937 387 35,589 792 Commercial other 12,113 169 12,290 317 Real estate mortgage 1,764 14 1,893 30 Total $ 54,916 $ 626 $ 57,185 $ 1,244 *Cash basis interest is substantially the same as interest income recognized.
Troubled Debt Restructuring	Presented below, segregated by class of loans, are troubled debt restructurings that occurred during the three and six months ended June 30, 2017 and 2016 and the year ended December 31, 2016: Three Months Ended June 30, 2017 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 2 $ 0 $ 0 $ 114 $ 114 Commercial secured by real estate 4 530 0 192 722 Commercial other 7 82 0 136 218 Residential: Real estate construction 1 846 0 0 846 Total troubled debt restructurings 14 $ 1,458 $ 0 $ 442 $ 1,900 Six Months Ended June 30, 2017 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 2 $ 0 $ 0 $ 114 $ 114 Commercial secured by real estate 5 579 0 192 771 Commercial other 9 135 0 136 271 Residential: Real estate construction 1 846 0 0 846 Real estate mortgage 1 323 0 0 323 Total troubled debt restructurings 18 $ 1,883 $ 0 $ 442 $ 2,325 Three Months Ended June 30, 2016 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 4 $ 120 $ 0 $ 0 $ 120 Commercial secured by real estate 8 1,611 0 536 2,147 Commercial other 6 440 0 0 440 Total troubled debt restructurings 18 $ 2,171 $ 0 $ 536 $ 2,707 Six Months Ended June 30, 2016 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 5 $ 1,408 $ 0 $ 0 $ 1,408 Commercial secured by real estate 21 5,609 0 580 6,189 Commercial other 16 5,041 0 0 5,041 Residential: Real estate mortgage 1 0 0 280 280 Total troubled debt restructurings 43 $ 12,058 $ 0 $ 860 $ 12,918 Year Ended December 31, 2016 (in thousands) Number of Loans Term Modification Rate Modification Combination Post-Modification Outstanding Balance Commercial: Commercial construction 1 $ 1,288 $ 0 $ 0 $ 1,288 Commercial secured by real estate 27 8,827 0 581 9,408 Commercial other 14 5,088 0 87 5,175 Residential: Real estate mortgage 1 0 0 281 281 Total troubled debt restructurings 43 $ 15,203 $ 0 $ 949 $ 16,152
Summary of Defaulted Restructured Loans	Presented below, segregated by class of loans, are loans that were modified as troubled debt restructurings within the prior twelve months which subsequently defaulted during the three and six months ended June 30, 2016. There were no such loans that defaulted during the three and six months ended June 30, 2017. CTBI considers a loan in default when it is 90 days or more past due or transferred to nonaccrual. (in thousands) Three Months Ended June 30, 2016 Six Months Ended June 30, 2016 Number of Loans Recorded Balance Number of Loans Recorded Balance Commercial: Commercial secured by real estate 0 $ 0 1 $ 510 Commercial other 0 0 1 358 Total defaulted restructured loans 0 $ 0 2 $ 868

Allowance for Loan and Lease 21

Allowance for Loan and Lease Losses (Tables)	6 Months Ended
	Jun. 30, 2017
Allowance for Loan and Lease Losses [Abstract]
Activity in Allowance for Loan and Lease Losses	The following tables present the balance in the allowance for loan and lease losses (“ALLL”) and the recorded investment in loans based on portfolio segment and impairment method as of June 30, 2017, December 31, 2016 and June 30, 2016: Three Months Ended June 30, 2017 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 644 $ 14,177 $ 40 $ 4,736 $ 571 $ 5,877 $ 757 $ 1,844 $ 7,067 $ 35,713 Provision charged to expense 22 1,435 (7 ) 599 10 (128 ) (11 ) 102 742 2,764 Losses charged off 0 (318 ) 0 (417 ) 0 (97 ) 0 (239 ) (1,118 ) (2,189 ) Recoveries 3 5 0 75 0 10 1 159 592 845 Ending balance $ 669 $ 15,299 $ 33 $ 4,993 $ 581 $ 5,662 $ 747 $ 1,866 $ 7,283 $ 37,133 Ending balance: Individually evaluated for impairment $ 25 $ 1,227 $ 0 $ 67 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,319 Collectively evaluated for impairment $ 644 $ 14,072 $ 33 $ 4,926 $ 581 $ 5,662 $ 747 $ 1,866 $ 7,283 $ 35,814 Loans Ending balance: Individually evaluated for impairment $ 4,860 $ 32,240 $ 130 $ 10,850 $ 846 $ 1,803 $ 0 $ 0 $ 0 $ 50,729 Collectively evaluated for impairment $ 67,194 $ 1,146,989 $ 4,773 $ 341,323 $ 57,720 $ 706,664 $ 93,721 $ 135,228 $ 483,001 $ 3,036,613 Six Months Ended June 30, 2017 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 884 $ 14,191 $ 42 $ 4,656 $ 629 $ 6,027 $ 774 $ 1,885 $ 6,845 $ 35,933 Provision charged to expense (220 ) 1,624 (9 ) 1,019 (48 ) (275 ) (27 ) 196 1,733 3,993 Losses charged off (4 ) (528 ) 0 (836 ) 0 (164 ) (3 ) (509 ) (2,636 ) (4,680 ) Recoveries 9 12 0 154 0 74 3 294 1,341 1,887 Ending balance $ 669 $ 15,299 $ 33 $ 4,993 $ 581 $ 5,662 $ 747 $ 1,866 $ 7,283 $ 37,133 Ending balance: Individually evaluated for impairment $ 25 $ 1,227 $ 0 $ 67 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,319 Collectively evaluated for impairment $ 644 $ 14,072 $ 33 $ 4,926 $ 581 $ 5,662 $ 747 $ 1,866 $ 7,283 $ 35,814 Loans Ending balance: Individually evaluated for impairment $ 4,860 $ 32,240 $ 130 $ 10,850 $ 846 $ 1,803 $ 0 $ 0 $ 0 $ 50,729 Collectively evaluated for impairment $ 67,194 $ 1,146,989 $ 4,773 $ 341,323 $ 57,720 $ 706,664 $ 93,721 $ 135,228 $ 483,001 $ 3,036,613 Three Months Ended June 30, 2016 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 1,983 $ 14,798 $ 70 $ 4,247 $ 548 $ 6,497 $ 824 $ 1,603 $ 5,759 $ 36,329 Provision charged to expense (534 ) 664 24 643 132 16 4 316 608 1,873 Losses charged off (16 ) (1,029 ) 0 (621 ) (123 ) (171 ) (11 ) (393 ) (938 ) (3,302 ) Recoveries 4 5 0 161 1 30 2 108 486 797 Ending balance $ 1,437 $ 14,438 $ 94 $ 4,430 $ 558 $ 6,372 $ 819 $ 1,634 $ 5,915 $ 35,697 Ending balance: Individually evaluated for impairment $ 287 $ 720 $ 0 $ 330 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,337 Collectively evaluated for impairment $ 1,150 $ 13,718 $ 94 $ 4,100 $ 558 $ 6,372 $ 819 $ 1,634 $ 5,915 $ 34,360 Loans Ending balance: Individually evaluated for impairment $ 6,662 $ 32,848 $ 0 $ 11,998 $ 0 $ 1,761 $ 0 $ 0 $ 0 $ 53,269 Collectively evaluated for impairment $ 62,351 $ 1,046,481 $ 7,353 $ 354,975 $ 58,973 $ 706,699 $ 89,185 $ 129,291 $ 422,808 $ 2,878,116 Six Months Ended June 30, 2016 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,199 $ 14,434 $ 79 $ 4,225 $ 550 $ 6,678 $ 839 $ 1,594 $ 5,496 $ 36,094 Provision charged to expense (754 ) 1,140 15 972 136 110 (4 ) 498 1,525 3,638 Losses charged off (16 ) (1,186 ) 0 (1,045 ) (131 ) (483 ) (21 ) (689 ) (2,196 ) (5,767 ) Recoveries 8 50 0 278 3 67 5 231 1,090 1,732 Ending balance $ 1,437 $ 14,438 $ 94 $ 4,430 $ 558 $ 6,372 $ 819 $ 1,634 $ 5,915 $ 35,697 Ending balance: Individually evaluated for impairment $ 287 $ 720 $ 0 $ 330 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,337 Collectively evaluated for impairment $ 1,150 $ 13,718 $ 94 $ 4,100 $ 558 $ 6,372 $ 819 $ 1,634 $ 5,915 $ 34,360 Loans Ending balance: Individually evaluated for impairment $ 6,662 $ 32,848 $ 0 $ 11,998 $ 0 $ 1,761 $ 0 $ 0 $ 0 $ 53,269 Collectively evaluated for impairment $ 62,351 $ 1,046,481 $ 7,353 $ 354,975 $ 58,973 $ 706,699 $ 89,185 $ 129,291 $ 422,808 $ 2,878,116 December 31, 2016 (in thousands) Commercial Construction Commercial Secured by Real Estate Equipment Lease Financing Commercial Other Real Estate Construction Real Estate Mortgage Home Equity Consumer Direct Consumer Indirect Total Allowance for loan losses Beginning balance $ 2,199 $ 14,434 $ 79 $ 4,225 $ 550 $ 6,678 $ 839 $ 1,594 $ 5,496 $ 36,094 Provision charged to expense (1,035 ) 1,220 (37 ) 2,128 264 291 (20 ) 912 4,149 7,872 Losses charged off (316 ) (1,641 ) 0 (2,136 ) (192 ) (1,043 ) (54 ) (1,236 ) (5,050 ) (11,668 ) Recoveries 36 178 0 439 7 101 9 615 2,250 3,635 Ending balance $ 884 $ 14,191 $ 42 $ 4,656 $ 629 $ 6,027 $ 774 $ 1,885 $ 6,845 $ 35,933 Ending balance: Individually evaluated for impairment $ 213 $ 1,035 $ 0 $ 65 $ 0 $ 0 $ 0 $ 0 $ 0 $ 1,313 Collectively evaluated for impairment $ 671 $ 13,156 $ 42 $ 4,591 $ 629 $ 6,027 $ 774 $ 1,885 $ 6,845 $ 34,620 Loans Ending balance: Individually evaluated for impairment $ 5,609 $ 33,756 $ 0 $ 11,354 $ 0 $ 1,483 $ 0 $ 0 $ 0 $ 52,202 Collectively evaluated for impairment $ 61,389 $ 1,051,672 $ 5,512 $ 338,805 $ 57,966 $ 701,486 $ 91,511 $ 133,093 $ 444,735 $ 2,886,169

Other Real Estate Owned (Tables

Other Real Estate Owned (Tables)	6 Months Ended
	Jun. 30, 2017
Other Real Estate Owned [Abstract]
Activity for Other Real Estate Owned	Activity for other real estate owned was as follows: Three Months Ended Six Months Ended June 30 June 30 (in thousands) 2017 2016 2017 2016 Beginning balance of other real estate owned $ 35,812 $ 38,985 $ 35,856 $ 40,674 New assets acquired 577 1,960 1,581 3,251 Capitalized costs 0 0 0 0 Fair value adjustments (1,449 ) (91 ) (1,987 ) (224 ) Sale of assets (2,155 ) (3,114 ) (2,665 ) (5,961 ) Ending balance of other real estate owned $ 32,785 $ 37,740 $ 32,785 $ 37,740
Major Classifications of Foreclosed Properties	The major classifications of foreclosed properties are shown in the following table: (in thousands) June 30 2017 December 31 2016 1-4 family $ 5,756 $ 6,210 Agricultural/farmland 90 93 Construction/land development/other 18,074 20,778 Multifamily 176 270 Non-farm/non-residential 8,542 8,505 Total foreclosed properties $ 32,638 $ 35,856

Repurchase Agreements (Tables)

Repurchase Agreements (Tables)	6 Months Ended
	Jun. 30, 2017
Repurchase Agreements [Abstract]
Remaining Contractual Maturity of Securities Sold Under Agreements to Repurchase by Class of Collateral Pledged	The remaining contractual maturity of the securities sold under agreements to repurchase by class of collateral pledged included in the accompanying consolidated balance sheets as of June 30, 2017 and December 31, 2016 is presented in the following tables: June 30, 2017 Remaining Contractual Maturity of the Agreements (in thousands) Overnight and Up to 30 days 30-90 days Greater Than Total Repurchase agreements and U.S. Treasury and government agencies $ 29,137 $ 4,871 $ 21,050 $ 59,379 $ 114,437 State and political subdivisions 58,845 2,261 3,297 7,365 71,768 U.S. government sponsored agency mortgage-backed securities 24,138 3,868 12,653 30,344 71,003 Total $ 112,120 $ 11,000 $ 37,000 $ 97,088 $ 257,208 December 31, 2016 Remaining Contractual Maturity of the Agreements (in thousands) Overnight and Up to 30 days 30-90 days Greater Than Total Repurchase agreements and U.S. Treasury and government agencies $ 17,249 $ 0 $ 14,349 $ 73,076 $ 104,674 State and political subdivisions 55,354 0 1,998 10,272 67,624 U.S. government sponsored agency mortgage-backed securities 23,386 0 8,003 47,378 78,767 Total $ 95,989 $ 0 $ 24,350 $ 130,726 $ 251,065

Fair Market Value of Financia24

Fair Market Value of Financial Assets and Liabilities (Tables)	6 Months Ended
	Jun. 30, 2017
Fair Market Value of Financial Assets and Liabilities [Abstract]
Fair Value Assets Measured on Recurring Basis	The following tables present the fair value measurements of assets recognized in the accompanying balance sheets measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016 and indicate the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at June 30, 2017 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – recurring basis Available-for-sale securities: U.S. Treasury and government agencies $ 236,058 $ 80,195 $ 155,863 $ 0 State and political subdivisions 131,942 0 131,942 0 U.S. government sponsored agenc y mortgage-backed securities 217,872 0 217,872 0 CRA investment funds 24,496 24,496 0 0 Mortgage servicing rights 3,304 0 0 3,304 Fair Value Measurements at December 31, 2016 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – recurring basis Available-for-sale securities: U.S. Treasury and government agencies $ 222,464 $ 44,934 $ 177,530 $ 0 State and political subdivisions 133,516 0 133,516 0 U.S. government sponsored agenc y mortgage-backed securities 225,056 0 225,056 0 CRA investment funds 24,358 24,358 0 0 Mortgage servicing rights 3,433 0 0 3,433
Reconciliation of the Beginning and Ending Balance of Recurring Fair Value Measurements Using Significant Unobservable (Level 3) Inputs	Following is a reconciliation of the beginning and ending balances of recurring fair value measurements recognized in the accompanying balance sheet using significant unobservable (Level 3) inputs for the three and six months ended June 30, 2017 and 2016: Mortgage Servicing Rights Three Months Ended Six Months Ended June 30 June 30 (in thousands) 2017 2016 2017 2016 Beginning balance $ 3,474 $ 2,908 $ 3,433 $ 3,236 Total recognized losses Included in net income (163 ) (160 ) (78 ) (540 ) Issues 88 127 171 221 Settlements (95 ) (78 ) (222 ) (120 ) Ending balance $ 3,304 $ 2,797 $ 3,304 $ 2,797 Total losses for the period included in net income attributable to the change in unrealized gains or losses related to assets still held at the reporting date $ (163 ) $ (160 ) $ (78 ) $ (540 )
Realized and Unrealized Gains and Losses for Items Included in Net Income in the Consolidated Statements of Income	Realized and unrealized gains and losses for items reflected in the table above are included in net income in the consolidated statements of income as follows: Noninterest Income Three Months Ended Six Months Ended June 30 June 30 (in thousands) 2017 2016 2017 2016 Total losses $ (258 ) $ (238 ) $ (301 ) $ (660 )
Fair Value Measurements of Recognized Assets Measured on Nonrecurring Basis	The following tables present the fair value measurements of assets recognized in the accompanying balance sheets measured at fair value on a nonrecurring basis as of June 30, 2017 and December 31, 2016 and indicate the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at June 30, 2017 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – nonrecurring basis Impaired loans (collateral dependent) $ 2,352 $ 0 $ 0 $ 2,352 Other real estate/assets owned 17,166 0 0 17,166 Fair Value Measurements at December 31, 2016 Using (in thousands) Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets measured – nonrecurring basis Impaired loans (collateral dependent) $ 5,506 $ 0 $ 0 $ 5,506 Other real estate/assets owned 4,388 0 0 4,388
Quantitative Information About Unobservable Inputs Used in Recurring and Nonrecurring Level 3 Fair Value Measurements	The following tables present quantitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements at June 30, 2017 and December 31, 2016. (in thousands) Quantitative Information about Level 3 Fair Value Measurements Fair Value at June 30, 2017 Valuation Technique(s) Unobservable Input Range (Weighted Average) Mortgage servicing rights $ 3,304 Discount cash flows, computer pricing model Constant prepayment rate 7.0% - 29.4% (10.6%) Probability of default 0.0% - 100.0% (3.9%) Discount rate 10.0% - 11.5% (10.1%) Impaired loans (collateral-dependent) $ 2,352 Market comparable properties Marketability discount 5.8% - 100.0% (43.5%) Other real estate/assets owned $ 17,166 Market comparable properties Comparability adjustments 6.0% - 37.5% (11.2%) (in thousands) Quantitative Information about Level 3 Fair Value Measurements Fair Value at December 31, 2016 Valuation Technique(s) Unobservable Input Range (Weighted Average) Mortgage servicing rights $ 3,433 Discount cash flows, computer pricing model Constant prepayment rate 7.0% - 27.0% (9.5%) Probability of default 0.0% - 100.0% (3.0%) Discount rate 10.0% - 11.5% (10.1%) Impaired loans (collateral-dependent) $ 5,506 Market comparable properties Marketability discount 0.0% - 100.0% (33.7%) Other real estate/assets owned $ 4,388 Market comparable properties Comparability adjustments 10.0% - 100.0% (14.9%)
Fair Value of Financial Instruments and Levels within the Fair Value Hierarchy of the Valuation Techniques	The following table presents estimated fair value of CTBI’s financial instruments as of June 30, 2017 and indicates the level within the fair value hierarchy of the valuation techniques. Fair Value Measurements at June 30, 2017 Using (in thousands) Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 127,830 $ 127,830 $ 0 $ 0 Certificates of deposit in other banks 12,260 0 12,223 0 Securities available-for-sale 610,368 104,691 505,677 0 Securities held-to-maturity 858 0 858 0 Loans held for sale 4,624 4,727 0 0 Loans, net 3,050,209 0 0 3,028,478 Federal Home Loan Bank stock 17,927 0 17,927 0 Federal Reserve Bank stock 4,887 0 4,887 0 Accrued interest receivable 11,329 0 11,329 0 Mortgage servicing rights 3,304 0 0 3,304 Financial liabilities: Deposits $ 3,105,610 $ 782,864 $ 2,324,415 $ 0 Repurchase agreements 257,208 0 0 257,148 Federal funds purchased 7,220 0 7,220 0 Advances from Federal Home Loan Bank 100,894 0 100,895 0 Long-term debt 59,341 0 0 49,073 Accrued interest payable 2,137 0 2,137 0 Unrecognized financial instruments: Letters of credit $ 0 $ 0 $ 0 $ 0 Commitments to extend credit 0 0 0 0 Forward sale commitments 0 0 0 0 The following table presents estimated fair value of CTBI’s financial instruments as of December 31, 2016 and indicates the level within the fair value hierarchy of the valuation techniques. (in thousands) Fair Value Measurements at December 31, 2016 Using Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 144,716 $ 144,716 $ 0 $ 0 Certificates of deposit in other banks 980 0 982 0 Securities available-for-sale 605,394 69,292 536,102 0 Securities held-to-maturity 866 0 867 0 Loans held for sale 1,244 1,260 0 0 Loans, net 2,902,438 0 0 2,882,348 Federal Home Loan Bank stock 17,927 0 17,927 0 Federal Reserve Bank stock 4,887 0 4,887 0 Accrued interest receivable 11,922 0 11,922 0 Mortgage servicing rights 3,433 0 0 3,433 Financial liabilities: Deposits $ 3,081,308 $ 767,918 $ 2,321,690 $ 0 Repurchase agreements 251,065 0 0 250,820 Federal funds purchased 4,816 0 4,816 0 Advances from Federal Home Loan Bank 944 0 1,009 0 Long-term debt 61,341 0 0 49,073 Accrued interest payable 1,200 0 1,200 0 Unrecognized financial instruments: Letters of credit $ 0 $ 0 $ 0 $ 0 Commitments to extend credit 0 0 0 0 Forward sale commitments 0 0 0 0

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended Six Months Ended June 30 June 30 (in thousands except per share data) 2017 2016 2017 2016 Numerator: Net income $ 11,541 $ 11,566 $ 22,818 $ 23,168 Denominator: Basic earnings per share: Weighted average shares 17,626 17,530 17,621 17,521 Diluted earnings per share: Effect of dilutive stock options and restricted stock grants 19 12 20 17 Adjusted weighted average shares 17,645 17,542 17,641 17,538 Earnings per share: Basic earnings per share $ 0.65 $ 0.66 $ 1.29 $ 1.32 Diluted earnings per share 0.65 0.66 1.29 1.32

Accumulated Other Comprehensi26

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2017
Accumulated Other Comprehensive Income [Abstract]
Amounts Reclassified from Accumulated Other Comprehensive Income (AOCI)	Amounts reclassified from accumulated other comprehensive income (AOCI) and the affected line items in the statements of income during the three and six months ended June 30, 2017 and 2016 were: Amounts Reclassified from AOCI (in thousands) Three Months Ended June 30 Six Months Ended June 30 2017 2016 2017 2016 Affected line item in the statements of income Securities gains (losses) $ 18 $ (4 ) $ 10 $ 64 Tax expense (benefit) 6 (1 ) 4 23 Total reclassifications out of AOCI $ 12 $ (3 ) $ 6 $ 41

Summary of Significant Accoun27

Summary of Significant Accounting Policies (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2018USD ($)	Jun. 30, 2017PaymentQuarter
Loans [Abstract]
Past due period after which loans must be well secured and in the process of collection to continue accruing interest		90 days
Period of current principal and interest payments for reclassifying nonaccrual loans as accruing loans		6 months
Allowance for Loan and Lease Losses [Abstract]
Number of delinquent monthly payments before loan charge off | Payment		5
Current value assessment period for past due loans secured against real estate		90 days
Threshold period past due for initiation of foreclosure proceedings		120 days
Historical loan loss review period | Quarter		12
Minimum [Member]
Other Real Estate Owned [Abstract]
Typical frequency of periodic reviews		12 months
Maximum [Member]
Other Real Estate Owned [Abstract]
Typical frequency of periodic reviews		18 months
Frequency of periodic reviews in general		24 months
Commercial [Member] | Unsecured Commercial Loan [Member]
Allowance for Loan and Lease Losses [Abstract]
Charge off threshold for loans considered uncollectible		90 days
Consumer [Member] | Closed-End Consumer Loan [Member]
Allowance for Loan and Lease Losses [Abstract]
Charge off threshold for loans considered uncollectible		120 days
ASU 2017-08 [Member] | Scenario, Forecast [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reduction in retained earnings	$ (150)
ASU 2017-08 [Member] | Scenario, Forecast [Member] | Minimum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Quarterly increase in amortization expense	24
ASU 2017-08 [Member] | Scenario, Forecast [Member] | Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Quarterly increase in amortization expense	$ 30

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense			$ 302	$ 235
Black-Scholes option pricing model, weighted average assumptions [Abstract]
Expected dividend yield				3.70%
Risk-free interest rate				1.45%
Expected volatility				34.34%
Expected term				7 years 6 months
Weighted average fair value of options (in dollars per share)				$ 6.82
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 14	$ 15	28	$ 28
Unrecognized compensation expense related to unvested stock option awards	100		$ 100
Unrecognized compensation expense, weighted average period			2 years 9 months 18 days
Options granted to purchase shares of CTBI common stock (in shares)			0	10,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	142	97	$ 274	$ 207
Dividend paid on stock based compensation	13	$ 9	$ 27	$ 18
Unrecognized compensation expense, weighted average period			3 years 3 months 18 days
Unrecognized compensation expense related to restricted stock grants	$ 1,500		$ 1,500
Granted (in shares)	0	0	23,668	18,069
2015 Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			4 years
2015 Plan [Member] | Restricted Stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of certain participant employee termination events following change in control for restriction on restricted stock granted to lapse			24 months
2015 Plan [Member] | Granted In 2017 [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			5,000
Award vesting period			5 years

Securities, Amortized Cost and

Securities, Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Available-for-sale debt securities [Abstract]
Amortized cost	$ 586,178	$ 583,939
Gross unrealized gains	3,842	3,158
Gross unrealized losses	(4,148)	(6,061)
Fair value	585,872	581,036
Available-for-sale [Abstract]
Amortized cost	611,178	608,939
Gross unrealized gains	3,932	3,234
Gross unrealized losses	(4,742)	(6,779)
Fair value	610,368	605,394
Held-to-maturity [Abstract]
Amortized cost	858	866
Gross unrealized gains	0	1
Gross unrealized losses	0	0
Fair value	858	867
U.S. Treasury and Government Agencies [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	236,345	223,014
Gross unrealized gains	173	193
Gross unrealized losses	(460)	(743)
Fair value	236,058	222,464
State and Political Subdivisions [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	129,872	133,351
Gross unrealized gains	2,833	1,957
Gross unrealized losses	(763)	(1,792)
Fair value	131,942	133,516
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	219,961	227,574
Gross unrealized gains	836	1,008
Gross unrealized losses	(2,925)	(3,526)
Fair value	217,872	225,056
CRA Investments Funds [Member]
Available-for-sale equity securities [Abstract]
Amortized cost	25,000	25,000
Gross unrealized gains	90	76
Gross unrealized losses	(594)	(718)
Fair value	24,496	24,358
State and Political Subdivisions [Member]
Held-to-maturity [Abstract]
Amortized cost	858	866
Gross unrealized gains	0	1
Gross unrealized losses	0	0
Fair value	$ 858	$ 867

Securities, Amortized Cost an30

Securities, Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Available-for-sale, amortized cost [Abstract]
Due in one year or less	$ 69,861
Due after one through five years	162,304
Due after five through ten years	51,203
Due after ten years	82,849
U.S. government sponsored agency mortgage-backed securities	219,961
Amortized cost	586,178	$ 583,939
CRA investment funds	25,000
Amortized cost	611,178	608,939
Available-for-sale, fair value [Abstract]
Due in one year or less	69,819
Due after one through five years	163,221
Due after five through ten years	52,067
Due after ten years	82,893
U.S. government sponsored agency mortgage-backed securities	217,872
Total debt securities	585,872	581,036
CRA investment funds	24,496
Total securities	610,368	605,394
Held-to-maturity, amortized cost [Abstract]
Due in one year or less	0
Due after one through five years	858
Due after five through ten years	0
Due after ten years	0
U.S. government sponsored agency mortgage-backed securities	0
Amortized cost	858	866
CRA investment funds	0
Total securities	858
Held-to-maturity, fair value [Abstract]
Due in one year or less	0
Due after one through five years	858
Due after five through ten years	0
Due after ten years	0
U.S. government sponsored agency mortgage-backed securities	0
Total debt securities	858	$ 867
CRA investment funds	0
Total securities	$ 858

Securities, Gains (Loss) on Sal

Securities, Gains (Loss) on Sales of Securities, Securities Pledged, and Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Securities [Abstract]
Net gains (loss) on sales and calls of AFS securities	$ 18	$ (4)	$ 10	$ 64
Realized pre-tax gain on sale of securities	30	1	29	69
Pre-tax loss on sale of securities	12	$ 5	19	$ 5
Securities pledged as collateral to secure public deposit and for other purposes	224,100		224,100		$ 221,200
Amortized cost of securities sold under agreements to repurchase	$ 297,100		$ 297,100		$ 303,500

Securities, Securities in Conti

Securities, Securities in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Securities [Abstract]
Percentage of total investment with unrealized losses	60.70%	65.60%
Available-for-sale, amortized cost [Abstract]
Less than 12 months	$ 316,117	$ 365,662
12 months or more	59,674	38,763
Total	375,791	404,425
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(3,584)	(5,586)
12 months or more	(1,158)	(1,193)
Total	(4,742)	(6,779)
Available-for-sale, fair value [Abstract]
Less than 12 months	312,533	360,076
12 months or more	58,516	37,570
Total	371,049	397,646
U.S. Treasury and Government Agencies [Member]
Available-for-sale, amortized cost [Abstract]
Less than 12 months	139,137	158,732
12 months or more	21,647	1,880
Total	160,784	160,612
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(419)	(716)
12 months or more	(41)	(27)
Total	(460)	(743)
Available-for-sale, fair value [Abstract]
Less than 12 months	138,718	158,016
12 months or more	21,606	1,853
Total	160,324	159,869
State and Political Subdivisions [Member]
Available-for-sale, amortized cost [Abstract]
Less than 12 months	26,970	53,491
12 months or more	2,383	751
Total	29,353	54,242
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(742)	(1,780)
12 months or more	(21)	(12)
Total	(763)	(1,792)
Available-for-sale, fair value [Abstract]
Less than 12 months	26,228	51,711
12 months or more	2,362	739
Total	28,590	52,450
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Available-for-sale, amortized cost [Abstract]
Less than 12 months	132,510	135,939
12 months or more	30,644	31,132
Total	163,154	167,071
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(2,076)	(2,646)
12 months or more	(849)	(880)
Total	(2,925)	(3,526)
Available-for-sale, fair value [Abstract]
Less than 12 months	130,434	133,293
12 months or more	29,795	30,252
Total	160,229	163,545
Debt Securities [Member]
Available-for-sale, amortized cost [Abstract]
Less than 12 months	298,617	348,162
12 months or more	54,674	33,763
Total	353,291	381,925
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(3,237)	(5,142)
12 months or more	(911)	(919)
Total	(4,148)	(6,061)
Available-for-sale, fair value [Abstract]
Less than 12 months	295,380	343,020
12 months or more	53,763	32,844
Total	349,143	375,864
CRA Investments Funds [Member]
Available-for-sale, amortized cost [Abstract]
Less than 12 months	17,500	17,500
12 months or more	5,000	5,000
Total	22,500	22,500
Available-for-sale, gross unrealized losses [Abstract]
Less than 12 months	(347)	(444)
12 months or more	(247)	(274)
Total	(594)	(718)
Available-for-sale, fair value [Abstract]
Less than 12 months	17,153	17,056
12 months or more	4,753	4,726
Total	$ 21,906	$ 21,782
Severity of impairment in percentage of fair value less than cost	2.40%

Loans, Major Classifications of

Loans, Major Classifications of Loans, Net of Income and Deferred Loan Origination Cost (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2017USD ($)Segment	Dec. 31, 2016USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 3,087,342	$ 2,938,371
Number of portfolio segments | Segment	9
Loans held for sale [Abstract]
Loans held for sale	$ 4,624	1,244
Commercial [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	72,054	66,998
Commercial [Member] | Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,179,229	1,085,428
Commercial [Member] | Equipment Lease Financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	4,903	5,512
Commercial [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	352,173	350,159
Residential [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	58,566	57,966
Residential [Member] | Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	708,467	702,969
Residential [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	93,721	91,511
Consumer [Member] | Consumer Direct [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	135,228	133,093
Consumer [Member] | Consumer Indirect [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 483,001	$ 444,735

Loans, Nonaccrual Loans Segrega

Loans, Nonaccrual Loans Segregated by Class of Loans and Loan Portfolio Aging Analysis, Segregated by Class (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		$ 19,651	$ 16,623
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		42,015	42,089
Current		3,045,327	2,896,282
Total Loans		3,087,342	2,938,371
90+ and Accruing	[1]	8,362	10,847
Minimum threshold amount of loans requiring performance bond		500
30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		9,607	10,242
60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		9,436	7,324
90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		$ 22,972	24,523
Equipment Lease Financing [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Financing percentage requested for underwriting loans		100.00%
Commercial [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Loans		$ 1,608,359	1,508,097
Commercial [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		1,328	1,912
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,352	1,962
Current		70,702	65,036
Total Loans		72,054	66,998
90+ and Accruing	[1]	24	28
Commercial [Member] | Construction [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		0	22
Commercial [Member] | Construction [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		0	0
Commercial [Member] | Construction [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,352	1,940
Commercial [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		8,713	6,326
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		13,569	11,358
Current		1,165,660	1,074,070
Total Loans		1,179,229	1,085,428
90+ and Accruing	[1]	2,171	3,015
Commercial [Member] | Real Estate [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		2,272	2,033
Commercial [Member] | Real Estate [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		3,540	478
Commercial [Member] | Real Estate [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		7,757	8,847
Commercial [Member] | Equipment Lease Financing [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		130	0
Current		4,773	5,512
Total Loans		4,903	5,512
90+ and Accruing	[1]	130	0
Commercial [Member] | Equipment Lease Financing [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		0	0
Commercial [Member] | Equipment Lease Financing [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		0	0
Commercial [Member] | Equipment Lease Financing [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		130	0
Commercial [Member] | Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		1,404	1,559
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		2,056	2,354
Current		350,117	347,805
Total Loans		352,173	350,159
90+ and Accruing	[1]	235	141
Commercial [Member] | Other [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		513	997
Commercial [Member] | Other [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		420	122
Commercial [Member] | Other [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,123	1,235
Residential [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		189	11
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,824	901
Current		56,742	57,065
Total Loans		58,566	57,966
90+ and Accruing	[1]	205	152
Residential [Member] | Construction [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,254	707
Residential [Member] | Construction [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		177	42
Residential [Member] | Construction [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		393	152
Residential [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		7,461	6,260
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		16,333	17,466
Current		692,134	685,503
Total Loans		708,467	702,969
90+ and Accruing	[1]	5,042	6,295
Residential [Member] | Real Estate [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		950	1,493
Residential [Member] | Real Estate [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		4,113	5,278
Residential [Member] | Real Estate [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		11,270	10,695
Residential [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans segregated by class of loans		556	555
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,957	2,022
Current		91,764	89,489
Total Loans		93,721	91,511
90+ and Accruing	[1]	300	467
Residential [Member] | Home Equity [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		1,004	829
Residential [Member] | Home Equity [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		261	288
Residential [Member] | Home Equity [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		692	905
Consumer [Member] | Consumer Direct [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		954	1,206
Current		134,274	131,887
Total Loans		135,228	133,093
90+ and Accruing	[1]	34	68
Consumer [Member] | Consumer Direct [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		788	873
Consumer [Member] | Consumer Direct [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		132	265
Consumer [Member] | Consumer Direct [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		34	68
Consumer [Member] | Consumer Indirect [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		3,840	4,820
Current		479,161	439,915
Total Loans		483,001	444,735
90+ and Accruing	[1]	221	681
Consumer [Member] | Consumer Indirect [Member] | 30-59 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		2,826	3,288
Consumer [Member] | Consumer Indirect [Member] | 60-89 Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		793	851
Consumer [Member] | Consumer Indirect [Member] | 90+ Days Past Due [Member]
Bank's Loan portfolio aging analysis, segregated by class [Abstract]
Total Past Due		$ 221	$ 681
[1]	90+ and Accruing are also included in 90+ Days Past Due column.

Loans, Credit Risk Profile Base

Loans, Credit Risk Profile Based on Rating Category and Payment Activity and on Performing and Nonperforming Status, Segregated by Class (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		$ 3,087,342	$ 2,938,371
Consumer mortgage loans secured by real estate properties for which formal foreclosure proceedings are in process		5,000	3,500
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		1,608,359	1,508,097
Commercial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		$ 1,426,421	1,335,205
Commercial [Member] | Pass [Member] | Minimum [Member]
Financing Receivable, Recorded Investment [Line Items]
Review period for loans		12 months
Commercial [Member] | Pass [Member] | Maximum [Member]
Financing Receivable, Recorded Investment [Line Items]
Review period for loans		18 months
Commercial [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		$ 99,443	88,215
Commercial [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		34,213	36,389
Commercial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		47,382	47,136
Commercial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		900	1,152
Commercial [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		72,054	66,998
Commercial [Member] | Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		62,033	55,315
Commercial [Member] | Construction [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		3,988	3,366
Commercial [Member] | Construction [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		1,874	2,535
Commercial [Member] | Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		3,981	5,592
Commercial [Member] | Construction [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		178	190
Commercial [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		1,179,229	1,085,428
Commercial [Member] | Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		1,056,938	975,383
Commercial [Member] | Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		64,594	51,932
Commercial [Member] | Real Estate [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		23,458	25,772
Commercial [Member] | Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		33,882	31,945
Commercial [Member] | Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		357	396
Commercial [Member] | Equipment Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		4,903	5,512
Commercial [Member] | Equipment Leases [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		4,667	5,206
Commercial [Member] | Equipment Leases [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		0	137
Commercial [Member] | Equipment Leases [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		106	169
Commercial [Member] | Equipment Leases [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		130	0
Commercial [Member] | Equipment Leases [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		0	0
Commercial [Member] | Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		352,173	350,159
Commercial [Member] | Other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		302,783	299,301
Commercial [Member] | Other [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		30,861	32,780
Commercial [Member] | Other [Member] | OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		8,775	7,913
Commercial [Member] | Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		9,389	9,599
Commercial [Member] | Other [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		365	566
Residential [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		58,566	57,966
Residential [Member] | Construction [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		58,172	57,803
Residential [Member] | Construction [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	394	163
Residential [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		708,467	702,969
Residential [Member] | Real Estate [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		695,964	690,414
Residential [Member] | Real Estate [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	12,503	12,555
Residential [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		93,721	91,511
Residential [Member] | Home Equity [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		92,865	90,489
Residential [Member] | Home Equity [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	856	1,022
Consumer [Member] | Consumer Direct [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		135,228	133,093
Consumer [Member] | Consumer Direct [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		135,194	133,025
Consumer [Member] | Consumer Direct [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	34	68
Consumer [Member] | Consumer Indirect [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		483,001	444,735
Consumer [Member] | Consumer Indirect [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		482,780	444,054
Consumer [Member] | Consumer Indirect [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	221	681
Residential and Consumer Portfolio Segments [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		1,478,983	1,430,274
Residential and Consumer Portfolio Segments [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile		1,464,975	1,415,785
Residential and Consumer Portfolio Segments [Member] | Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio based on credit risk profile	[1]	$ 14,008	$ 14,489
[1]	A loan is considered nonperforming if it is 90 days or more past due and/or on nonaccrual.

Loans, Impaired Loans, Average

Loans, Impaired Loans, Average Investments in Impaired Loans, and Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Loans with a specific valuation allowance [Abstract]
Specific Allowance		$ 1,319	$ 1,337	$ 1,319	$ 1,337	$ 1,313
Total impaired loans [Abstract]
Recorded balance		50,729	53,269	50,729	53,269	52,202
Unpaid Contractual Principal Balance		54,443	57,044	54,443	57,044	55,888
Specific Allowance		1,319	1,337	1,319	1,337	1,313
Average Investment in Impaired Loans		51,594	54,916	51,214	57,185	55,679
Interest Income Recognized	[1]	541	626	1,090	1,244	2,530
Commercial [Member] | Construction [Member]
Loans without a specific valuation allowance [Abstract]
Recorded Balance		4,707	4,455	4,707	4,455	4,102
Unpaid Contractual Principal Balance		4,709	4,741	4,709	4,741	4,123
Average Investment in Impaired Loans		5,041	4,730	5,101	4,526	4,367
Interest Income Recognized	[1]	49	56	86	105	218
Loans with a specific valuation allowance [Abstract]
Recorded Balance		153	2,207	153	2,207	1,507
Unpaid Contractual Principal Balance		174	2,209	174	2,209	1,509
Specific Allowance		25	287	25	287	213
Average Investment in Impaired Loans		153	2,372	157	2,887	2,290
Interest Income Recognized	[1]	0	0	0	0	0
Total impaired loans [Abstract]
Recorded balance		4,860	6,662	4,860	6,662	5,609
Unpaid Contractual Principal Balance		4,883	6,950	4,883	6,950	5,632
Specific Allowance		25	287	25	287	213
Average Investment in Impaired Loans		5,194	7,102	5,258	7,413	6,657
Interest Income Recognized	[1]	49	56	86	105	218
Commercial [Member] | Real Estate [Member]
Loans without a specific valuation allowance [Abstract]
Recorded Balance		27,509	30,181	27,509	30,181	29,025
Unpaid Contractual Principal Balance		28,195	30,816	28,195	30,816	29,594
Average Investment in Impaired Loans		27,858	30,339	28,252	31,426	31,136
Interest Income Recognized	[1]	343	387	704	774	1,609
Loans with a specific valuation allowance [Abstract]
Recorded Balance		4,731	2,667	4,731	2,667	4,731
Unpaid Contractual Principal Balance		5,833	3,721	5,833	3,721	5,885
Specific Allowance		1,227	720	1,227	720	1,035
Average Investment in Impaired Loans		4,745	3,598	4,362	4,163	4,151
Interest Income Recognized	[1]	5	0	5	18	19
Total impaired loans [Abstract]
Recorded balance		32,240	32,848	32,240	32,848	33,756
Unpaid Contractual Principal Balance		34,028	34,537	34,028	34,537	35,479
Specific Allowance		1,227	720	1,227	720	1,035
Average Investment in Impaired Loans		32,603	33,937	32,614	35,589	35,287
Interest Income Recognized	[1]	348	387	709	792	1,628
Commercial [Member] | Equipment Lease Financing [Member]
Loans without a specific valuation allowance [Abstract]
Recorded Balance		130		130
Unpaid Contractual Principal Balance		130		130
Average Investment in Impaired Loans		135		68
Interest Income Recognized	[1]	0		0
Loans with a specific valuation allowance [Abstract]
Specific Allowance		0		0
Total impaired loans [Abstract]
Recorded balance		130		130
Unpaid Contractual Principal Balance		130		130
Specific Allowance		0		0
Average Investment in Impaired Loans		135		68
Interest Income Recognized	[1]	0		0
Commercial [Member] | Other [Member]
Loans without a specific valuation allowance [Abstract]
Recorded Balance		10,719	11,328	10,719	11,328	11,215
Unpaid Contractual Principal Balance		12,619	13,113	12,619	13,113	13,155
Average Investment in Impaired Loans		10,882	11,446	10,981	11,597	11,561
Interest Income Recognized	[1]	133	169	273	317	632
Loans with a specific valuation allowance [Abstract]
Recorded Balance		131	670	131	670	139
Unpaid Contractual Principal Balance		134	683	134	683	139
Specific Allowance		67	330	67	330	65
Average Investment in Impaired Loans		131	667	66	693	483
Interest Income Recognized	[1]	0	0	0	0	0
Total impaired loans [Abstract]
Recorded balance		10,850	11,998	10,850	11,998	11,354
Unpaid Contractual Principal Balance		12,753	13,796	12,753	13,796	13,294
Specific Allowance		67	330	67	330	65
Average Investment in Impaired Loans		11,013	12,113	11,047	12,290	12,044
Interest Income Recognized	[1]	133	169	273	317	632
Residential [Member] | Construction [Member]
Loans without a specific valuation allowance [Abstract]
Recorded Balance		846		846
Unpaid Contractual Principal Balance		846		846
Average Investment in Impaired Loans		846		423
Interest Income Recognized	[1]	0		0
Loans with a specific valuation allowance [Abstract]
Specific Allowance		0		0
Total impaired loans [Abstract]
Recorded balance		846		846
Unpaid Contractual Principal Balance		846		846
Specific Allowance		0		0
Average Investment in Impaired Loans		846		423
Interest Income Recognized	[1]	0		0
Residential [Member] | Real Estate [Member]
Loans without a specific valuation allowance [Abstract]
Recorded Balance		1,803	1,761	1,803	1,761	1,483
Unpaid Contractual Principal Balance		1,803	1,761	1,803	1,761	1,483
Average Investment in Impaired Loans		1,803	1,764	1,804	1,893	1,691
Interest Income Recognized	[1]	11	14	22	30	52
Loans with a specific valuation allowance [Abstract]
Specific Allowance		0	0	0	0	0
Total impaired loans [Abstract]
Recorded balance		1,803	1,761	1,803	1,761	1,483
Unpaid Contractual Principal Balance		1,803	1,761	1,803	1,761	1,483
Specific Allowance		0	0	0	0	0
Average Investment in Impaired Loans		1,803	1,764	1,804	1,893	1,691
Interest Income Recognized	[1]	$ 11	$ 14	$ 22	$ 30	$ 52
[1]	Cash basis interest is substantially the same as interest income recognized.

Loans, Troubled Debt Restructur

Loans, Troubled Debt Restructurings Segregated by Class (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017USD ($)Loan	Jun. 30, 2016USD ($)Loan	Jun. 30, 2017USD ($)Loan	Jun. 30, 2016USD ($)Loan	Dec. 31, 2016USD ($)Loan
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	14	18	18	43	43
Post-Modification Outstanding Balance	$ 1,900	$ 2,707	$ 2,325	$ 12,918	$ 16,152
Commitment to extend additional credit on loans modified in TDRs	$ 100		$ 100
Defaulted restructured loans, number of loans | Loan	0	0	0	2
Defaulted restructured loans, recorded balance		$ 0		$ 868
Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	$ 1,458	2,171	$ 1,883	12,058	15,203
Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	0	0	0	0	0
Combination [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	$ 442	$ 536	$ 442	$ 860	$ 949
Commercial [Member] | Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	2	4	2	5	1
Post-Modification Outstanding Balance	$ 114	$ 120	$ 114	$ 1,408	$ 1,288
Commercial [Member] | Construction [Member] | Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	0	120	0	1,408	1,288
Commercial [Member] | Construction [Member] | Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	0	0	0	0	0
Commercial [Member] | Construction [Member] | Combination [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	$ 114	$ 0	$ 114	$ 0	$ 0
Commercial [Member] | Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	4	8	5	21	27
Post-Modification Outstanding Balance	$ 722	$ 2,147	$ 771	$ 6,189	$ 9,408
Defaulted restructured loans, number of loans | Loan		0		1
Defaulted restructured loans, recorded balance		$ 0		$ 510
Commercial [Member] | Real Estate [Member] | Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	530	1,611	579	5,609	8,827
Commercial [Member] | Real Estate [Member] | Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	0	0	0	0	0
Commercial [Member] | Real Estate [Member] | Combination [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	$ 192	$ 536	$ 192	$ 580	$ 581
Commercial [Member] | Other [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	7	6	9	16	14
Post-Modification Outstanding Balance	$ 218	$ 440	$ 271	$ 5,041	$ 5,175
Defaulted restructured loans, number of loans | Loan		0		1
Defaulted restructured loans, recorded balance		$ 0		$ 358
Commercial [Member] | Other [Member] | Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	82	440	135	5,041	5,088
Commercial [Member] | Other [Member] | Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	0	0	0	0	0
Commercial [Member] | Other [Member] | Combination [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	$ 136	$ 0	$ 136	$ 0	$ 87
Residential [Member] | Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	1		1
Post-Modification Outstanding Balance	$ 846		$ 846
Residential [Member] | Construction [Member] | Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	846		846
Residential [Member] | Construction [Member] | Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	0		0
Residential [Member] | Construction [Member] | Combination [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance	$ 0		$ 0
Residential [Member] | Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan			1	1	1
Post-Modification Outstanding Balance			$ 323	$ 280	$ 281
Residential [Member] | Real Estate [Member] | Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance			323	0	0
Residential [Member] | Real Estate [Member] | Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance			0	0	0
Residential [Member] | Real Estate [Member] | Combination [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Balance			$ 0	$ 280	$ 281

Allowance for Loan and Lease 38

Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Allowance for loan losses [Roll Forward]
Beginning balance	$ 35,713	$ 36,329	$ 35,933	$ 36,094	$ 36,094
Provision charged to expense	2,764	1,873	3,993	3,638	7,872
Losses charged off	(2,189)	(3,302)	(4,680)	(5,767)	(11,668)
Recoveries	845	797	1,887	1,732	3,635
Ending balance	37,133	35,697	37,133	35,697	35,933
Ending balance [Abstract]
Individually evaluated for impairment	1,319	1,337	1,319	1,337	1,313
Collectively evaluated for impairment	35,814	34,360	35,814	34,360	34,620
Loans ending balance [Abstract]
Individually evaluated for impairment	50,729	53,269	50,729	53,269	52,202
Collectively evaluated for impairment	3,036,613	2,878,116	3,036,613	2,878,116	2,886,169
Commercial [Member] | Construction [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	644	1,983	884	2,199	2,199
Provision charged to expense	22	(534)	(220)	(754)	(1,035)
Losses charged off	0	(16)	(4)	(16)	(316)
Recoveries	3	4	9	8	36
Ending balance	669	1,437	669	1,437	884
Ending balance [Abstract]
Individually evaluated for impairment	25	287	25	287	213
Collectively evaluated for impairment	644	1,150	644	1,150	671
Loans ending balance [Abstract]
Individually evaluated for impairment	4,860	6,662	4,860	6,662	5,609
Collectively evaluated for impairment	67,194	62,351	67,194	62,351	61,389
Commercial [Member] | Real Estate [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	14,177	14,798	14,191	14,434	14,434
Provision charged to expense	1,435	664	1,624	1,140	1,220
Losses charged off	(318)	(1,029)	(528)	(1,186)	(1,641)
Recoveries	5	5	12	50	178
Ending balance	15,299	14,438	15,299	14,438	14,191
Ending balance [Abstract]
Individually evaluated for impairment	1,227	720	1,227	720	1,035
Collectively evaluated for impairment	14,072	13,718	14,072	13,718	13,156
Loans ending balance [Abstract]
Individually evaluated for impairment	32,240	32,848	32,240	32,848	33,756
Collectively evaluated for impairment	1,146,989	1,046,481	1,146,989	1,046,481	1,051,672
Commercial [Member] | Equipment Lease Financing [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	40	70	42	79	79
Provision charged to expense	(7)	24	(9)	15	(37)
Losses charged off	0	0	0	0	0
Recoveries	0	0	0	0	0
Ending balance	33	94	33	94	42
Ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	33	94	33	94	42
Loans ending balance [Abstract]
Individually evaluated for impairment	130	0	130	0	0
Collectively evaluated for impairment	4,773	7,353	4,773	7,353	5,512
Commercial [Member] | Other [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	4,736	4,247	4,656	4,225	4,225
Provision charged to expense	599	643	1,019	972	2,128
Losses charged off	(417)	(621)	(836)	(1,045)	(2,136)
Recoveries	75	161	154	278	439
Ending balance	4,993	4,430	4,993	4,430	4,656
Ending balance [Abstract]
Individually evaluated for impairment	67	330	67	330	65
Collectively evaluated for impairment	4,926	4,100	4,926	4,100	4,591
Loans ending balance [Abstract]
Individually evaluated for impairment	10,850	11,998	10,850	11,998	11,354
Collectively evaluated for impairment	341,323	354,975	341,323	354,975	338,805
Residential [Member] | Construction [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	571	548	629	550	550
Provision charged to expense	10	132	(48)	136	264
Losses charged off	0	(123)	0	(131)	(192)
Recoveries	0	1	0	3	7
Ending balance	581	558	581	558	629
Ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	581	558	581	558	629
Loans ending balance [Abstract]
Individually evaluated for impairment	846	0	846	0	0
Collectively evaluated for impairment	57,720	58,973	57,720	58,973	57,966
Residential [Member] | Real Estate [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	5,877	6,497	6,027	6,678	6,678
Provision charged to expense	(128)	16	(275)	110	291
Losses charged off	(97)	(171)	(164)	(483)	(1,043)
Recoveries	10	30	74	67	101
Ending balance	5,662	6,372	5,662	6,372	6,027
Ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	5,662	6,372	5,662	6,372	6,027
Loans ending balance [Abstract]
Individually evaluated for impairment	1,803	1,761	1,803	1,761	1,483
Collectively evaluated for impairment	706,664	706,699	706,664	706,699	701,486
Residential [Member] | Home Equity [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	757	824	774	839	839
Provision charged to expense	(11)	4	(27)	(4)	(20)
Losses charged off	0	(11)	(3)	(21)	(54)
Recoveries	1	2	3	5	9
Ending balance	747	819	747	819	774
Ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	747	819	747	819	774
Loans ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	93,721	89,185	93,721	89,185	91,511
Consumer [Member] | Consumer Direct [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	1,844	1,603	1,885	1,594	1,594
Provision charged to expense	102	316	196	498	912
Losses charged off	(239)	(393)	(509)	(689)	(1,236)
Recoveries	159	108	294	231	615
Ending balance	1,866	1,634	1,866	1,634	1,885
Ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	1,866	1,634	1,866	1,634	1,885
Loans ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	135,228	129,291	135,228	129,291	133,093
Consumer [Member] | Consumer Indirect [Member]
Allowance for loan losses [Roll Forward]
Beginning balance	7,067	5,759	6,845	5,496	5,496
Provision charged to expense	742	608	1,733	1,525	4,149
Losses charged off	(1,118)	(938)	(2,636)	(2,196)	(5,050)
Recoveries	592	486	1,341	1,090	2,250
Ending balance	7,283	5,915	7,283	5,915	6,845
Ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	7,283	5,915	7,283	5,915	6,845
Loans ending balance [Abstract]
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	$ 483,001	$ 422,808	$ 483,001	$ 422,808	$ 444,735

Other Real Estate Owned (Detail

Other Real Estate Owned (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Activity for other real estate owned [Roll Forward]
Beginning balance of other real estate owned	$ 35,812	$ 38,985	$ 35,856	$ 40,674
New assets acquired	577	1,960	1,581	3,251
Capitalized costs	0	0	0	0
Fair value adjustments	(1,449)	(91)	(1,987)	(224)
Sale of assets	(2,155)	(3,114)	(2,665)	(5,961)
Ending balance of other real estate owned	32,785	37,740	32,785	37,740
Property included in other real estate owned which was not acquired through foreclosure	148		148
Carrying cost and fair value adjustments for foreclosed properties	$ 1,800	$ 500	$ 2,700	$ 1,000

Other Real Estate Owned, Major

Other Real Estate Owned, Major Classifications of Foreclosed Properties (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	$ 32,638	$ 35,856
1-4 Family [Member]
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	5,756	6,210
Agricultural/Farmland [Member]
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	90	93
Construction/Land Development/Other [Member]
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	18,074	20,778
Multifamily [Member]
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	176	270
Non-farm/Non-residential [Member]
Schedule of Foreclosed Properties [Line Items]
Total foreclosed properties	$ 8,542	$ 8,505

Repurchase Agreements (Details)

Repurchase Agreements (Details) - Securities Sold under Agreements to Repurchase [Member] - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Carrying value of investment securities available for sale pledged as collateral under repurchase agreements	$ 297,800	$ 302,300
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	257,208	251,065
Overnight and Continuous [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	112,120	95,989
Up to 30 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	11,000	0
30-90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	37,000	24,350
Greater Than 90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	97,088	130,726
U.S. Treasury and Government Agencies [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	114,437	104,674
U.S. Treasury and Government Agencies [Member] | Overnight and Continuous [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	29,137	17,249
U.S. Treasury and Government Agencies [Member] | Up to 30 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	4,871	0
U.S. Treasury and Government Agencies [Member] | 30-90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	21,050	14,349
U.S. Treasury and Government Agencies [Member] | Greater Than 90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	59,379	73,076
State and Political Subdivisions [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	71,768	67,624
State and Political Subdivisions [Member] | Overnight and Continuous [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	58,845	55,354
State and Political Subdivisions [Member] | Up to 30 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	2,261	0
State and Political Subdivisions [Member] | 30-90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	3,297	1,998
State and Political Subdivisions [Member] | Greater Than 90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	7,365	10,272
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	71,003	78,767
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | Overnight and Continuous [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	24,138	23,386
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | Up to 30 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	3,868	0
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | 30-90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	12,653	8,003
U.S. Government Sponsored Agency Mortgage-backed Securities [Member] | Greater Than 90 Days [Member]
Remaining contractual maturity of securities sold under agreements to repurchase by class of collateral pledged [Abstract]
Repurchase agreements and repurchase-to-maturity transactions	$ 30,344	$ 47,378

Fair Market Value of Financia42

Fair Market Value of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 610,368	$ 605,394		$ 610,368		$ 605,394
Reconciliation of beginning and ending balances of recurring fair value measurements recognized in balance sheet using significant unobservable (Level 3) inputs [Roll Forward]
Total losses	(258)		$ (238)	$ (301)	$ (660)
Minimum [Member]
Other real estate owned [Abstract]
Typical frequency of periodic reviews				12 months
Maximum [Member]
Other real estate owned [Abstract]
Typical frequency of periodic reviews				18 months
Frequency of periodic reviews in general				24 months
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	104,691	69,292		$ 104,691		69,292
Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	505,677	536,102		505,677		536,102
Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	3,304	3,433		3,304		3,433
Recurring [Member] | Fair Value [Member] | U.S. Treasury and Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	236,058	222,464		236,058		222,464
Recurring [Member] | Fair Value [Member] | State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	131,942	133,516		131,942		133,516
Recurring [Member] | Fair Value [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	217,872	225,056		217,872		225,056
Recurring [Member] | Fair Value [Member] | CRA Investments Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	24,496	24,358		24,496		24,358
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	0	0		0		0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member] | U.S. Treasury and Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	80,195	44,934		80,195		44,934
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member] | State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member] | CRA Investments Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	24,496	24,358		24,496		24,358
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	0	0		0		0
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member] | U.S. Treasury and Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	155,863	177,530		155,863		177,530
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member] | State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	131,942	133,516		131,942		133,516
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	217,872	225,056		217,872		225,056
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member] | CRA Investments Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	3,304	3,433		3,304		3,433
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member] | U.S. Treasury and Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member] | State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member] | CRA Investments Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0		0		0
Recurring [Member] | Mortgage Servicing Rights [Member]
Reconciliation of beginning and ending balances of recurring fair value measurements recognized in balance sheet using significant unobservable (Level 3) inputs [Roll Forward]
Beginning balance	3,474		2,908	3,433	3,236	3,236
Total recognized losses Included in net income	(163)		(160)	(78)	(540)
Issues	88		127	171	221
Settlements	(95)		(78)	(222)	(120)
Ending balance	3,304	3,433	2,797	3,304	2,797	3,433
Total losses for the period included in net income attributable to the change in unrealized gains or losses related to assets still held at the reporting date	(163)		(160)	(78)	(540)
Nonrecurring [Member]
Impaired loan (collateral dependent) [Abstract]
Impaired loans, fair value adjustments	400	300	300	500	600	600
Other real estate owned [Abstract]
Other real estate /assets owned, fair value adjustment	1,400	600	$ 100	2,000	$ 200	1,200
Nonrecurring [Member] | Fair Value [Member]
Assets measured-nonrecurring basis [Abstract]
Impaired loans (collateral dependent)	2,352	5,506		2,352		5,506
Other real estate /assets owned	17,166	4,388		17,166		4,388
Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value [Member]
Assets measured-nonrecurring basis [Abstract]
Impaired loans (collateral dependent)	0	0		0		0
Other real estate /assets owned	0	0		0		0
Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair Value [Member]
Assets measured-nonrecurring basis [Abstract]
Impaired loans (collateral dependent)	0	0		0		0
Other real estate /assets owned	0	0		0		0
Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair Value [Member]
Assets measured-nonrecurring basis [Abstract]
Impaired loans (collateral dependent)	2,352	5,506		2,352		5,506
Other real estate /assets owned	$ 17,166	$ 4,388		$ 17,166		$ 4,388

Fair Market Value of Financia43

Fair Market Value of Financial Assets and Liabilities, Quantitative Information about Level 3 Fair Value Measurements (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Unobservable inputs [Abstract]
Constant prepayment rate	7.00%	7.00%
Probability of default	0.00%	0.00%
Discount rate	10.00%	10.00%
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Unobservable inputs [Abstract]
Constant prepayment rate	29.40%	27.00%
Probability of default	100.00%	100.00%
Discount rate	11.50%	11.50%
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Unobservable inputs [Abstract]
Constant prepayment rate	10.60%	9.50%
Probability of default	3.90%	3.00%
Discount rate	10.10%	10.10%
Mortgage Servicing Rights [Member] | Discount Cash Flows, Computer Pricing Model [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 3,304	$ 3,433
Impaired Loans (Collateral Dependent) [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Unobservable inputs [Abstract]
Marketability discount	5.80%	0.00%
Impaired Loans (Collateral Dependent) [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Unobservable inputs [Abstract]
Marketability discount	100.00%	100.00%
Impaired Loans (Collateral Dependent) [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Unobservable inputs [Abstract]
Marketability discount	43.50%	33.70%
Impaired Loans (Collateral Dependent) [Member] | Market Comparable Properties [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 2,352	$ 5,506
Other Real Estate/Assets Owned [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Unobservable inputs [Abstract]
Comparability adjustments	6.00%	10.00%
Other Real Estate/Assets Owned [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Unobservable inputs [Abstract]
Comparability adjustments	37.50%	100.00%
Other Real Estate/Assets Owned [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Unobservable inputs [Abstract]
Comparability adjustments	11.20%	14.90%
Other Real Estate/Assets Owned [Member] | Market Comparable Properties [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 17,166	$ 4,388

Fair Market Value of Financia44

Fair Market Value of Financial Assets and Liabilities, Estimated Fair Value of Financial Instruments and Indication of Level Within Fair Value Hierarchy of Valuation Techniques (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financial assets [Abstract]
Available-for-sale securities	$ 610,368	$ 605,394
Securities held-to-maturity	858	867
Mortgage servicing rights	3,304	3,433
Carrying Amount [Member]
Financial assets [Abstract]
Cash and cash equivalents	127,830	144,716
Certificates of deposits in other banks	12,260	980
Available-for-sale securities	610,368	605,394
Securities held-to-maturity	858	866
Loans held for sale	4,624	1,244
Loans, net	3,050,209	2,902,438
Federal Home Loan Bank stock	17,927	17,927
Federal Reserve Bank stock	4,887	4,887
Accrued interest receivable	11,329	11,922
Mortgage servicing rights	3,304	3,433
Financial liabilities [Abstract]
Deposits	3,105,610	3,081,308
Repurchase agreements	257,208	251,065
Federal funds purchased	7,220	4,816
Advances from Federal Home Loan Bank	100,894	944
Long-term debt	59,341	61,341
Accrued interest payable	2,137	1,200
Unrecognized financial instruments [Abstract]
Letters of credit	0	0
Commitments to extend credit	0	0
Forward sale commitments	0	0
Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets [Abstract]
Cash and cash equivalents	127,830	144,716
Certificates of deposits in other banks	0	0
Available-for-sale securities	104,691	69,292
Securities held-to-maturity	0	0
Loans held for sale	4,727	1,260
Loans, net	0	0
Federal Home Loan Bank stock	0	0
Federal Reserve Bank stock	0	0
Accrued interest receivable	0	0
Mortgage servicing rights	0	0
Financial liabilities [Abstract]
Deposits	782,864	767,918
Repurchase agreements	0	0
Federal funds purchased	0	0
Advances from Federal Home Loan Bank	0	0
Long-term debt	0	0
Accrued interest payable	0	0
Unrecognized financial instruments [Abstract]
Letters of credit	0	0
Commitments to extend credit	0	0
Forward sale commitments	0	0
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets [Abstract]
Cash and cash equivalents	0	0
Certificates of deposits in other banks	12,223	982
Available-for-sale securities	505,677	536,102
Securities held-to-maturity	858	867
Loans held for sale	0	0
Loans, net	0	0
Federal Home Loan Bank stock	17,927	17,927
Federal Reserve Bank stock	4,887	4,887
Accrued interest receivable	11,329	11,922
Mortgage servicing rights	0	0
Financial liabilities [Abstract]
Deposits	2,324,415	2,321,690
Repurchase agreements	0	0
Federal funds purchased	7,220	4,816
Advances from Federal Home Loan Bank	100,895	1,009
Long-term debt	0	0
Accrued interest payable	2,137	1,200
Unrecognized financial instruments [Abstract]
Letters of credit	0	0
Commitments to extend credit	0	0
Forward sale commitments	0	0
Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets [Abstract]
Cash and cash equivalents	0	0
Certificates of deposits in other banks	0	0
Available-for-sale securities	0	0
Securities held-to-maturity	0	0
Loans held for sale	0	0
Loans, net	3,028,478	2,882,348
Federal Home Loan Bank stock	0	0
Federal Reserve Bank stock	0	0
Accrued interest receivable	0	0
Mortgage servicing rights	3,304	3,433
Financial liabilities [Abstract]
Deposits	0	0
Repurchase agreements	257,148	250,820
Federal funds purchased	0	0
Advances from Federal Home Loan Bank	0	0
Long-term debt	49,073	49,073
Accrued interest payable	0	0
Unrecognized financial instruments [Abstract]
Letters of credit	0	0
Commitments to extend credit	0	0
Forward sale commitments	$ 0	$ 0

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Numerator [Abstract]
Net income	$ 11,541	$ 11,566	$ 22,818	$ 23,168
Basic earnings per share [Abstract]
Weighted average shares (in shares)	17,626,000	17,530,000	17,621,000	17,521,000
Diluted earnings per share [Abstract]
Effect of dilutive stock options and restricted stock grants (in shares)	19,000	12,000	20,000	17,000
Adjusted weighted average shares (in shares)	17,645,000	17,542,000	17,641,000	17,538,000
Earnings per share [Abstract]
Basic earnings per share (in dollars per share)	$ 0.65	$ 0.66	$ 1.29	$ 1.32
Diluted earnings per share (in dollars per share)	$ 0.65	$ 0.66	$ 1.29	$ 1.32
Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options excluded from diluted calculations (in shares)	0	0	0	67,953
Weighted average price for anti dilutive securities (in dollars per share)		$ 35.31		$ 35.31

Accumulated Other Comprehensi46

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Securities gains (losses)	$ 18	$ (4)	$ 10	$ 64
Tax expense (benefit)	4,680	4,197	9,199	8,883
Net income	11,541	11,566	22,818	23,168
Unrealized Gains (Losses) on AFS Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Securities gains (losses)	18	(4)	10	64
Tax expense (benefit)	6	(1)	4	23
Net income	$ 12	$ (3)	$ 6	$ 41

Commitments and Contingencies (

Commitments and Contingencies (Details)	6 Months Ended
	Jun. 30, 2017Product
Commitments and Contingencies [Abstract]
Number of deposit add-on products for which certain customer reimbursements are to be made	2