Penns Woods Bancorp (PWOD) 10-Q 8 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 01, 2018
Document and Entity Information
Entity Registrant Name	PENNS WOODS BANCORP INC
Entity Central Index Key	716,605
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		4,690,564
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2

CONSOLIDATED BALANCE SHEET (UNA

CONSOLIDATED BALANCE SHEET (UNAUDITED) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
ASSETS
Noninterest-bearing balances	$ 26,134	$ 25,692
Interest-bearing balances in other financial institutions	29,873	1,551
Total cash and cash equivalents	56,007	27,243
Investment debt securities, available for sale, at fair value	118,876	108,627
Investment equity securities, at fair value	2,438	2,516
Investment securities, trading	243	190
Restricted investment in bank stock, at fair value	16,716	13,332
Loans held for sale	2,118	1,196
Loans	1,331,073	1,246,614
Allowance for loan losses	(13,034)	(12,858)
Loans, net	1,318,039	1,233,756
Premises and equipment, net	27,385	27,386
Accrued interest receivable	4,618	4,321
Bank-owned life insurance	28,315	27,982
Goodwill	17,104	17,104
Intangibles	1,304	1,462
Deferred tax asset	4,941	4,388
Other assets	5,169	4,989
TOTAL ASSETS	1,603,273	1,474,492
LIABILITIES
Interest-bearing deposits	879,825	843,004
Noninterest-bearing deposits	311,194	303,316
Total deposits	1,191,019	1,146,320
Short-term borrowings	134,637	100,748
Long-term borrowings	123,970	70,970
Accrued interest payable	896	502
Other liabilities	13,616	17,758
TOTAL LIABILITIES	1,464,138	1,336,298
SHAREHOLDERS’ EQUITY
Preferred stock, no par value, 3,000,000 shares authorized; no shares issued	0	0
Common stock, par value $8.33, 15,000,000 shares authorized; 5,010,535 and 5,009,339 shares issued; 4,690,385 and 4,689,189 outstanding	41,753	41,744
Additional paid-in capital	50,225	50,173
Retained earnings	66,181	63,364
Accumulated other comprehensive loss
Net unrealized loss on available for sale securities	(2,057)	(54)
Defined benefit plan	(4,853)	(4,920)
Treasury stock at cost, 320,150	(12,115)	(12,115)
TOTAL PENNS WOODS BANCORP, INC. SHAREHOLDERS' EQUITY	139,134	138,192
Non-controlling interest	1	2
TOTAL SHAREHOLDERS' EQUITY	139,135	138,194
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 1,603,273	$ 1,474,492

CONSOLIDATED BALANCE SHEET (UN3

CONSOLIDATED BALANCE SHEET (UNAUDITED) (Parenthetical) - $ / shares	Jun. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Preferred stock, shares authorized (in shares)	3,000,000	3,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 8.33	$ 8.33
Common stock, shares authorized (in shares)	15,000,000	15,000,000
Common stock, shares issued (in shares)	5,010,535	5,009,339
Common stock, shares outstanding (in shares)	4,690,385	4,689,189
Treasury stock (in shares)	320,150	320,150

CONSOLIDATED STATEMENT OF INCOM

CONSOLIDATED STATEMENT OF INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
INTEREST AND DIVIDEND INCOME
Loans, including fees	$ 12,997	$ 11,109	$ 25,190	$ 21,736
Investment securities
Taxable	639	570	1,185	1,112
Tax-exempt	230	323	471	621
Dividend and other interest income	245	207	466	422
TOTAL INTEREST AND DIVIDEND INCOME	14,111	12,209	27,312	23,891
INTEREST EXPENSE
Deposits	1,490	1,008	2,712	1,910
Short-term borrowings	252	4	476	8
Long-term borrowings	666	373	1,268	813
TOTAL INTEREST EXPENSE	2,408	1,385	4,456	2,731
NET INTEREST INCOME	11,703	10,824	22,856	21,160
PROVISION FOR LOAN LOSSES	335	215	495	545
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	11,368	10,609	22,361	20,615
NON-INTEREST INCOME
Service charges	592	559	1,143	1,087
Net debt securities gains (losses), available for sale	14	(12)	5	185
Net equity securities gains (losses)	6	0	(28)	0
Net securities (losses) gains, trading	(5)	0	(2)	2
Bank-owned life insurance	158	161	331	333
Gain on sale of loans	400	503	655	861
Insurance commissions	64	99	181	290
Brokerage commissions	330	361	673	692
Debit card fees	373	501	706	935
Other	430	591	779	1,029
TOTAL NON-INTEREST INCOME	2,362	2,763	4,443	5,414
NON-INTEREST EXPENSE
Salaries and employee benefits	4,919	4,608	9,967	9,378
Occupancy	699	614	1,440	1,252
Furniture and equipment	801	664	1,548	1,313
Software amortization	231	242	296	515
Pennsylvania shares tax	278	230	555	468
Professional fees	649	565	1,215	1,256
Federal Deposit Insurance Corporation deposit insurance	200	150	402	320
Marketing	268	204	519	375
Intangible amortization	78	86	158	176
Other	1,394	1,700	2,694	2,995
TOTAL NON-INTEREST EXPENSE	9,517	9,063	18,794	18,048
INCOME BEFORE INCOME TAX PROVISION	4,213	4,309	8,010	7,981
INCOME TAX PROVISION	733	1,223	1,322	2,209
CONSOLIDATED NET INCOME	3,480	3,086	6,688	5,772
Less: Net loss attributable to noncontrolling interest	0	0	(1)	0
NET INCOME ATTRIBUTABLE TO PENNS WOODS BANCORP, INC.	$ 3,480	$ 3,086	$ 6,689	$ 5,772
EARNINGS PER SHARE - BASIC (in dollars per share)	$ 0.74	$ 0.65	$ 1.43	$ 1.22
EARNINGS PER SHARE - DILUTED (in dollars per share)	$ 0.74	$ 0.65	$ 1.43	$ 1.22
WEIGHTED AVERAGE SHARES OUTSTANDING - BASIC (in dollars per share)	4,689,932	4,711,332	4,689,656	4,723,003
WEIGHTED AVERAGE SHARES OUTSTANDING - DILUTED (in dollars per share)	4,703,339	4,711,332	4,689,656	4,723,003
DIVIDENDS DECLARED PER SHARE (in dollars per share)	$ 0.47	$ 0.47	$ 0.94	$ 0.94

CONSOLIDATED STATEMENT OF COMPR

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net Income	$ 3,480	$ 3,086	$ 6,689	$ 5,772
Other comprehensive (loss) income:
Change in unrealized (loss) gain on available for sale securities	(391)	389	(1,852)	1,128
Tax effect	84	(132)	390	(382)
Net realized (gain) loss on available for sale securities included in net income	(14)	12	(5)	(185)
Tax effect	4	(4)	1	62
Amortization of unrecognized pension gain	42	40	84	84
Tax effect	(9)	(10)	(17)	(28)
Total other comprehensive (loss) income	(284)	295	(1,399)	679
Comprehensive income	$ 3,196	$ 3,381	$ 5,290	$ 6,451

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	COMMON STOCK	ADDITIONAL PAID-IN CAPITAL	RETAINED EARNINGS	ACCUMULATED OTHER COMPREHENSIVE LOSS	TREASURY STOCK	NON-CONTROLLING INTEREST
Beginning balance (in shares) at Dec. 31, 2016		5,007,109
Beginning balance at Dec. 31, 2016	$ 138,249	$ 41,726	$ 50,075	$ 61,610	$ (4,928)	$ (10,234)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	5,772			5,772
Other comprehensive income (loss)	679				679
Stock-based compensation	7		7
Dividends declared	(4,430)			(4,430)
Common shares issued for employee stock purchase plan (in shares)		1,083
Common shares issued for employee stock purchase plan	44	$ 9	35
Purchase of treasury stock (47,698 shares)	(1,881)					(1,881)
Ending balance (in shares) at Jun. 30, 2017		5,008,192
Ending balance at Jun. 30, 2017	138,440	$ 41,735	50,117	62,952	(4,249)	(12,115)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of ASU 2016-01	0			537	(537)
Beginning balance (in shares) at Dec. 31, 2017		5,009,339
Beginning balance at Dec. 31, 2017	138,194	$ 41,744	50,173	63,364	(4,974)	(12,115)	2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,688			6,689			(1)
Other comprehensive income (loss)	(1,399)				(1,399)
Stock-based compensation	12		12
Dividends declared	(4,409)			(4,409)
Common shares issued for employee stock purchase plan (in shares)		1,196
Common shares issued for employee stock purchase plan	49	$ 9	40
Ending balance (in shares) at Jun. 30, 2018		5,010,535
Ending balance at Jun. 30, 2018	$ 139,135	$ 41,753	$ 50,225	$ 66,181	$ (6,910)	$ (12,115)	$ 1

CONSOLIDATED STATEMENT OF CHAN7

CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical)	6 Months Ended
	Jun. 30, 2017$ / sharesshares
Statement of Stockholders' Equity [Abstract]
Dividends declared, per share (in dollars per share) | $ / shares	$ 0.94
Purchase of treasury stock (in shares) | shares	47,698

CONSOLIDATED STATEMENT OF CASH

CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
OPERATING ACTIVITIES
Net Income	$ 6,689	$ 5,772
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	1,244	1,389
Amortization of intangible assets	158	176
Provision for loan losses	495	545
Accretion and amortization of investment security discounts and premiums	395	465
Net securities gains, available for sale	(5)	(185)
Originations of loans held for sale	(23,436)	(26,087)
Proceeds of loans held for sale	23,169	27,218
Gain on sale of loans	(655)	(861)
Net equity securities losses	28	0
Net securities losses (gains), trading	2	(2)
Proceeds from the sale of trading securities	254	332
Purchases of trading securities	(309)	(485)
Earnings on bank-owned life insurance	(331)	(333)
Increase in deferred tax asset	(163)	(63)
Other, net	(94)	(3,461)
Net cash provided by operating activities	7,441	4,420
INVESTING ACTIVITIES
Proceeds from sales of available for sale securities	4,483	9,130
Proceeds from calls and maturities of available for sale securities	3,961	5,388
Purchases of available for sale securities	(21,160)	(18,434)
Net increase in loans	(85,338)	(46,226)
Acquisition of premises and equipment	(948)	(2,004)
Proceeds from the sale of foreclosed assets	181	587
Purchase of bank-owned life insurance	(31)	(30)
Security Trades Payable	(3,669)	0
Proceeds from redemption of regulatory stock	8,744	2,134
Purchases of regulatory stock	(12,128)	(2,566)
Net cash used for investing activities	(105,905)	(52,021)
FINANCING ACTIVITIES
Net increase in interest-bearing deposits	36,821	59,119
Net increase (decrease) in noninterest-bearing deposits	7,878	(3,223)
Proceeds from long-term borrowings	55,000	0
Repayment of long-term borrowings	(2,000)	(10,000)
Net increase in short-term borrowings	33,889	2,496
Dividends paid	(4,409)	(4,430)
Issuance of common stock	49	51
Purchases of treasury stock	0	(1,881)
Net cash provided by financing activities	127,228	42,132
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	28,764	(5,469)
CASH AND CASH EQUIVALENTS, BEGINNING	27,243	43,671
CASH AND CASH EQUIVALENTS, ENDING	56,007	38,202
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest paid	4,062	2,772
Income taxes paid	1,500	2,350
Transfer of loans to foreclosed real estate	560	490
Transfer due to adoption of ASU 2016-01, equity securities fair value adjust, reclassification from AOCI to Retained Earnings, net of tax	$ 1	$ 0

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements include the accounts of Penns Woods Bancorp, Inc. (the “Company”) and its wholly-owned subsidiaries: Woods Investment Company, Inc., Woods Real Estate Development Company, Inc., Luzerne Bank, and Jersey Shore State Bank (Jersey Shore State Bank and Luzerne Bank are referred to together as the “Banks”) and Jersey Shore State Bank’s wholly-owned subsidiary, The M Group, Inc. D/B/A The Comprehensive Financial Group (“The M Group”). The Company also owns a controlling interest in United Insurance Solutions, LLC. All significant inter-company balances and transactions have been eliminated in the consolidation. The interim financial statements are unaudited, but in the opinion of management reflect all adjustments necessary for the fair presentation of results for such periods. The results of operations for any interim period are not necessarily indicative of results for the full year. These financial statements should be read in conjunction with the financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 . Tax Cuts and Jobs Act Public law No. 115-97, commonly referred to as the Tax Cuts and Jobs Act (the "Tax Act"), enacted on December 22, 2017, reduced the U.S. federal corporate tax rate from 34% to 21% effective January 1, 2018. Also on December 22, 2017, the Securities and Exchange Commission issued Staff Accounting Bulletin No. 118 (“SAB 118”), which provides guidance on accounting for tax effects of the Tax Act. SAB 118 provides a measurement period of up to one year from the enactment date to complete the accounting. Any adjustments during this measurement period will be included in net earnings from continuing operations as an adjustment to income tax expense in the reporting period when such adjustments are determined. Based on the information available and current interpretation of the rules, the Company estimated the impact of the reduction in the corporate tax rate and remeasurement of certain deferred tax assets and liabilities. The amount recorded in the fourth quarter of 2017 related to the remeasurement of the Company's deferred tax balance resulted in additional income tax expense of $2.7 million . Newly Adopted Accounting Standards In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (a new revenue recognition standard). The Update’s core principle is that a company will recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, this Update specifies the accounting for certain costs to obtain or fulfill a contract with a customer and expands disclosure requirements for revenue recognition. This Update is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Upon adoption on January 1, 2018, we have included the related new disclosure requirements in Note 13 . In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . This Update applies to all entities that hold financial assets or owe financial liabilities and is intended to provide more useful information on the recognition, measurement, presentation, and disclosure of financial instruments. Among other things, this Update (a) requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income; (b) simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment; (c) eliminates the requirement to disclose the fair value of financial instruments measured at amortized cost for entities that are not public business entities; (d) eliminates the requirement for public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet; (e) requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; (f) requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset (that is, securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements; and (g) clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other deferred tax assets. For public business entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. For all other entities, including not-for-profit entities and employee benefit plans within the scope of Topics 960 through 965 on plan accounting, the amendments in this Update are effective for fiscal years beginning after December 15, 2018, and interim periods within fiscal years beginning after December 15, 2019. All entities that are not public business entities may adopt the amendments in this Update earlier as of the fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Upon adoption on January 1, 2018, the Company made a one-time cumulative effect adjustment from accumulated other comprehensive income to retained earnings of $537,000 . The net effect was an increase to retained earnings. The accounting policies followed in the presentation of interim financial results are the same as those followed on an annual basis. These policies are presented on pages 40 through 50 of the Form 10-K for the year ended December 31, 2017 . In reference to the attached financial statements, all adjustments are of a normal recurring nature pursuant to Rule 10-01(b) (8) of Regulation S-X.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	6 Months Ended
	Jun. 30, 2018
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss The changes in accumulated other comprehensive loss by component shown net of tax and parenthesis indicating debits, as of June 30, 2018 and 2017 were as follows: Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 (In Thousands) Net Unrealized Loss on Available for Sale Securities Defined Benefit Plan Total Net Unrealized Gain (Loss) on Available for Sale Securities Defined Benefit Plan Total Beginning balance $ (1,740 ) $ (4,886 ) $ (6,626 ) $ (281 ) $ (4,263 ) $ (4,544 ) Other comprehensive (loss) gain before reclassifications (307 ) — (307 ) 257 — 257 Amounts reclassified from accumulated other comprehensive loss (10 ) 33 23 8 30 38 Net current-period other comprehensive (loss) income (317 ) 33 (284 ) 265 30 295 Ending balance $ (2,057 ) $ (4,853 ) $ (6,910 ) $ (16 ) $ (4,233 ) $ (4,249 ) Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 (In Thousands) Net Unrealized Loss on Available for Sale Securities Defined Benefit Plan Total Net Unrealized Gain (Loss) on Available for Sale Securities Defined Benefit Plan Total Beginning balance $ (54 ) $ (4,920 ) $ (4,974 ) $ (639 ) $ (4,289 ) $ (4,928 ) Other comprehensive (loss) gain before reclassifications (1,462 ) — (1,462 ) 746 — 746 Amounts reclassified from accumulated other comprehensive loss (4 ) 67 63 (123 ) 56 (67 ) Net current-period other comprehensive (loss) income (1,466 ) 67 (1,399 ) 623 56 679 Reclassification from adoption of 2016-01 (537 ) — (537 ) — — — Ending balance $ (2,057 ) $ (4,853 ) $ (6,910 ) $ (16 ) $ (4,233 ) $ (4,249 ) The reclassifications out of accumulated other comprehensive loss shown, net of tax and parenthesis indicating debits to net income, as of June 30, 2018 and 2017 were as follows: Details about Accumulated Other Comprehensive Loss Components Amount Reclassified from Accumulated Other Comprehensive Loss Affected Line Item Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Net unrealized gain (loss) on available for sale securities $ 14 $ (12 ) Net securities (losses) gains, available for sale Income tax effect (4 ) 4 Income tax provision Total reclassifications for the period $ 10 $ (8 ) Net unrecognized pension costs $ (42 ) $ (40 ) Salaries and employee benefits Income tax effect 9 10 Income tax provision Total reclassifications for the period $ (33 ) $ (30 ) Details about Accumulated Other Comprehensive Loss Components Amount Reclassified from Accumulated Other Comprehensive Loss Affected Line Item in the Consolidated Statement of Income Six months ended June 30, 2018 Six months ended June 30, 2017 Net unrealized gain on available for sale securities $ 5 $ 185 Net securities gains, available for sale Income tax effect (1 ) (62 ) Income tax provision Total reclassifications for the period $ 4 $ 123 Net unrecognized pension costs $ (84 ) $ (84 ) Salaries and employee benefits Income tax effect 17 28 Income tax provision Total reclassifications for the period $ (67 ) $ (56 )

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2018
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . The standard requires lessees to recognize the assets and liabilities that arise from leases on the balance sheet. A lessee should recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. A short-term lease is defined as one in which (a) the lease term is 12 months or less and (b) there is not an option to purchase the underlying asset that the lessee is reasonably certain to exercise. For short-term leases, lessees may elect to recognize lease payments over the lease term on a straight-line basis. For public business entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2018, and interim periods within those years. For all other entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2019, and for interim periods within fiscal years beginning after December 15, 2020. The amendments should be applied at the beginning of the earliest period presented using a modified retrospective approach with earlier application permitted as of the beginning of an interim or annual reporting period. The Company is currently assessing the practical expedients it may elect at adoption, but does not anticipate the amendments will have a significant impact on the financial statements. Based on the Company’s preliminary analysis of its current portfolio, the impact to the Company’s balance sheet is estimated to result in less than a 1 percent increase in assets and liabilities. The Company also anticipates additional disclosures to be provided at adoption. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments , which changes the impairment model for most financial assets. This Update is intended to improve financial reporting by requiring timelier recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. The underlying premise of the Update is that financial assets measured at amortized cost should be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. The allowance for credit losses should reflect management’s current estimate of credit losses that are expected to occur over the remaining life of a financial asset. The income statement will be effected for the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. ASU 2016-13 is effective for annual and interim periods beginning after December 15, 2019, and early adoption is permitted for annual and interim periods beginning after December 15, 2018. With certain exceptions, transition to the new requirements will be through a cumulative effect adjustment to opening retained earnings as of the beginning of the first reporting period in which the guidance is adopted. We expect to recognize a one-time cumulative effect adjustment to the allowance for loan losses as of the beginning of the first reporting period in which the new standard is effective, but cannot yet determine the magnitude of any such one-time adjustment or the overall impact of the new guidance on the consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment . To simplify the subsequent measurement of goodwill, the FASB eliminated Step 2 from the goodwill impairment test. In computing the implied fair value of goodwill under Step 2, an entity had to perform procedures to determine the fair value at the impairment testing date of its assets and liabilities (including unrecognized assets and liabilities) following the procedure that would be required in determining the fair value of assets acquired and liabilities assumed in a business combination. Instead, under the amendments in this Update, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting units fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. A public business entity that is a U.S. Securities and Exchange Commission (SEC) filer should adopt the amendments in this Update for its annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. A public business entity that is not an SEC filer should adopt the amendments in this Update for its annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2020. All other entities, including not-for-profit entities, that are adopting the amendments in this Update should do so for their annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2021. This Update is not expected to have a significant impact on the Company’s financial statements. In February 2017, the FASB issued ASU 2017-06 , Plan Accounting: Defined Benefit Pension Plans (Topic 960), Defined Contribution Pension Plans (Topic 962), and Health and Welfare Benefit Plans (Topic 965) . This Update relates primarily to the reporting by an employee benefit plan for its interest in a master trust, which is a trust for which a regulated financial institution serves as a trustee or custodian and in which assets of more than one plan sponsored by a single employer or by a group of employers under common control are held. For each master trust in which a plan holds an interest, the amendments in this Update require a plan's interest in that master trust and any change in that interest to be presented in separate line items in the statement of net assets available for benefits and in the statement of changes in net assets available for benefits, respectively. The amendments in this Update remove the requirement to disclose the percentage interest in the master trust for plans with divided interests and require that all plans disclose the dollar amount of their interest in each of those general types of investments, which supplements the existing requirement to disclose the master trusts balances in each general type of investments. There are also increased disclosure requirements for investments in master trusts. The amendments in this Update are effective for fiscal years beginning after December 15, 2018. Early adoption is permitte d. This Update is not expected to have a significant impact on the Company’s financial statements. In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20). The amendments in this Update shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. For public business entities, the amendments in this Update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. For all other entities, the amendments are effective for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity should apply the amendments in this Update on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. Additionally, in the period of adoption, an entity should provide disclosures about a change in accounting principle. This Update is not expected to have a significant impact on the Company’s financial statements. In July 2017, the FASB issued ASU 2017-11, Earnings Per Share (Topic 260), Distinguishing Liabilities from Equity (Topic 480), and Derivative and Hedging (Topic 815) . The amendments in Part I of this Update change the classification analysis of certain equity-linked financial instruments (or embedded features) with down-round features. When determining whether certain financial instruments should be classified as liabilities or equity instruments, a down-round feature no longer precludes equity classification when assessing whether the instrument is indexed to an entity’s own stock. The amendments also clarify existing disclosure requirements for equity-classified instruments. As a result, a freestanding equity-linked financial instrument (or embedded conversion option) no longer would be accounted for as a derivative liability at fair value as a result of the existence of a down-round feature. For freestanding equity classified financial instruments, the amendments require entities that present earnings per share (EPS) in accordance with Topic 260 to recognize the effect of the down-round feature when it is triggered. That effect is treated as a dividend and as a reduction of income available to common shareholders in basic EPS. Convertible instruments with embedded conversion options that have down- round features are now subject to the specialized guidance for contingent beneficial conversion features (in Subtopic 470-20, Debt-Debt with Conversion and Other Options ), including related EPS guidance (in Topic 260). The amendments in Part II of this Update recharacterize the indefinite deferral of certain provisions of Topic 480 that now are presented as pending content in the Accounting Standards Codification, to a scope exception. Those amendments do not have an accounting effect. For public business entities, the amendments in Part I of this Update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. For all other entities, the amendments in Part I of this Update are effective for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020. Early adoption is permitted for all entities, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The amendments in Part I of this Update should be applied either retrospectively to outstanding financial instruments with a down-round feature by means of a cumulative-effect adjustment to the statement of financial position as of the beginning of the first fiscal year and interim period(s) in which the pending content that links to this paragraph is effective or retrospectively to outstanding financial instruments with a down-round feature for each prior reporting period presented in accordance with the guidance on accounting changes in paragraphs 250-10-45-5 through 45-10. The amendments in Part II of this Update do not require any transition guidance because those amendments do not have an accounting effect. This Update is not expected to have a significant impact on the Company’s financial statements. In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 850) , the objective of which is to improve the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. In addition, the amendments in this Update make certain targeted improvements to simplify the application and disclosure of the hedge accounting guidance in current general accepted accounting principles. For public business entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. For all other entities, the amendments are effective for fiscal years beginning after December 15, 2019, and interim periods beginning after December 15, 2020. Early application is permitted in any period after issuance. For cash flow and net investment hedges existing at the date of adoption, an entity should apply a cumulative-effect adjustment related to eliminating the separate measurement of ineffectiveness to accumulated other comprehensive income with a corresponding adjustment to the opening balance of retained earnings as of the beginning of the fiscal year that an entity adopts the amendments in this Update. The amended presentation and disclosure guidance is required only prospectively. This Update is not expected to have a significant impact on the Company’s financial statements. In January 2018, the FASB issued ASU 2018-01, Leases (Topic 842) , which provides an optional transition practical expedient to not evaluate under Topic 842 existing or expired land easements that were not previously accounted for as leases under the current lease guidance in Topic 840. An entity that elects this practical expedient should evaluate new or modified land easements under Topic 842 beginning at the date the entity adopts Topic 842; otherwise, an entity should evaluate all existing or expired land easements in connection with the adoption of the new lease requirements in Topic 842 to assess whether they meet the definition of a lease. The effective date and transition requirements for the amendments are the same as the effective date and transition requirements in ASU 2016-02. This Update is not expected to have a significant impact on the Company’s financial statements. In February 2018, the FASB issued ASU 2018-03, Technical Corrections and Improvements to Financial Instruments-Overall (Subtopic 825-10) , to clarify certain aspects of the guidance issued in ASU 2016-01. (1) An entity measuring an equity security using the measurement alternative may change its measurement approach to a fair value method in accordance with Topic 820, Fair Value Measurement , through an irrevocable election that would apply to that security and all identical or similar investments of the same issuer. Once an entity makes this election, the entity should measure all future purchases of identical or similar investments of the same issuer using a fair value method in accordance with Topic 820. (2) Adjustments made under the measurement alternative are intended to reflect the fair value of the security as of the date that the observable transaction for a similar security took place. (3) Remeasuring the entire value of forward contracts and purchased options is required when observable transactions occur on the underlying equity securities. (4) When the fair value option is elected for a financial liability, the guidance in paragraph 825-10-45-5 should be applied, regardless of whether the fair value option was elected under either Subtopic 815-15, Derivatives and Hedging-Embedded Derivatives , or 825-10, Financial Instruments-Overall . (5) Financial liabilities for which the fair value option is elected, the amount of change in fair value that relates to the instrument specific credit risk should first be measured in the currency of denomination when presented separately from the total change in fair value of the financial liability. Then, both components of the change in the fair value of the liability should be remeasured into the functional currency of the reporting entity using end-of-period spot rates. (6) The prospective transition approach for equity securities without a readily determinable fair value in the amendments in Update 2016-01 is meant only for instances in which the measurement alternative is applied. An insurance entity subject to the guidance in Topic 944, Financial Services- Insurance , should apply a prospective transition method when applying the amendments related to equity securities without readily determinable fair values. An insurance entity should apply the selected prospective transition method consistently to the entity’s entire population of equity securities for which the measurement alternative is elected. For public business entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years beginning after June 15, 2018. Public business entities with fiscal years beginning between December 15, 2017, and June 15, 2018, are not required to adopt these amendments until the interim period beginning after June 15, 2018, and public business entities with fiscal years beginning between June 15, 2018, and December 15, 2018, are not required to adopt these amendments before adopting the amendments in Update 2016-01. For all other entities, the effective date is the same as the effective date in Update 2016-01. All entities may early adopt these amendments for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, as long as they have adopted Update 2016-01. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations. In March 2018, the FASB issued ASU 2018-04, Investments - Debt Securities (Topic 320) and Regulated Operations (Topic 980) - Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 117 and SEC Release No. 33-9273, ASU 2018-04 supersedes various SEC paragraphs and adds an SEC paragraph pursuant to the issuance of Staff Accounting Bulletin No. 117.

Per Share Data

Per Share Data	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Per Share Data	Per Share Data There are no convertible securities which would affect the denominator in calculating basic and dilutive earnings per share. There were a total of 115,000 stock options, with an average exercise price of $43.94 , outstanding on June 30, 2018 . A portion of these options were included, on a weighted average basis, in the computation of diluted earnings per share for the period due to the average market price of common shares of $ 43.37 exceeding the exercise price of the options issued during 2015. There were a total of 96,500 stock options outstanding for the same period end in 2017 that had an average exercise price of $43.61 and were excluded, on a weighted average basis, in the computation of diluted earnings per share because the quarterly average closing market price of common shares was $43.26 for the period. Net income as presented on the consolidated statement of income will be used as the numerator. The following table sets forth the composition of the weighted average common shares (denominator) used in the basic and dilutive earnings per share computation. Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Weighted average common shares issued 5,010,082 5,007,747 5,009,806 5,007,503 Weighted average treasury stock shares (320,150 ) (296,415 ) (320,150 ) (284,500 ) Weighted average common shares outstanding - basic 4,689,932 4,711,332 4,689,656 4,723,003 Dilutive effect of outstanding stock options 13,407 — — — Weighted average common shares outstanding - diluted 4,703,339 4,711,332 4,689,656 4,723,003

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The amortized cost, gross unrealized gains and losses, and fair values of our investment securities portfolio at June 30, 2018 and December 31, 2017 are as follows: June 30, 2018 Gross Gross Amortized Unrealized Unrealized Fair (In Thousands) Cost Gains Losses Value Available for sale (AFS): Mortgage-backed securities $ 5,702 $ 34 $ (220 ) $ 5,516 State and political securities 65,635 119 (722 ) 65,032 Other debt securities 50,143 12 (1,827 ) 48,328 Total debt securities $ 121,480 $ 165 $ (2,769 ) $ 118,876 Investment equity securities: Financial institution equity securities $ 487 $ 730 $ — $ 1,217 Other equity securities 1,300 — (79 ) 1,221 Investment equity securities $ 1,787 $ 730 $ (79 ) $ 2,438 Trading: Financial institution equity securities $ — $ — $ — $ — Other equity securities 252 5 (14 ) 243 Trading investment equity securities $ 252 $ 5 $ (14 ) $ 243 December 31, 2017 Gross Gross Amortized Unrealized Unrealized Fair (In Thousands) Cost Gains Losses Value Available for sale (AFS): Mortgage-backed securities $ 4,273 $ 51 $ (111 ) $ 4,213 State and political securities 56,295 411 (198 ) 56,508 Other debt securities 48,806 180 (1,080 ) 47,906 Total debt securities $ 109,374 $ 642 $ (1,389 ) $ 108,627 Investment equity securities: Financial institution equity securities $ 537 $ 728 $ — $ 1,265 Other equity securities 1,300 — (49 ) 1,251 Investment equity securities $ 1,837 $ 728 $ (49 ) $ 2,516 Trading: Financial institution equity securities $ 20 $ — $ — $ 20 Other equity securities 192 2 (24 ) 170 Trading investment equity securities $ 212 $ 2 $ (24 ) $ 190 Total net trading losses of $ 5,000 and $2,000 for the three and six months ended June 30, 2018 compared to net trading gains of zero and $2,000 for the three and six months ended June 30, 2017 are included in the Consolidated Statement of Income. The following tables show the Company’s gross unrealized losses and fair value, aggregated by investment category and length of time, that the individual debt securities have been in a continuous unrealized loss position, at June 30, 2018 and December 31, 2017 . June 30, 2018 Less than Twelve Months Twelve Months or Greater Total Gross Gross Gross Fair Unrealized Fair Unrealized Fair Unrealized (In Thousands) Value Losses Value Losses Value Losses Available for sale (AFS): Mortgage-backed securities $ 2,750 $ (56 ) $ 2,181 $ (164 ) $ 4,931 $ (220 ) State and political securities 35,049 (544 ) 5,180 (178 ) 40,229 (722 ) Other debt securities 17,590 (396 ) 27,892 (1,431 ) 45,482 (1,827 ) Total debt securities $ 55,389 $ (996 ) $ 35,253 $ (1,773 ) $ 90,642 $ (2,769 ) December 31, 2017 Less than Twelve Months Twelve Months or Greater Total Gross Gross Gross Fair Unrealized Fair Unrealized Fair Unrealized (In Thousands) Value Losses Value Losses Value Losses Available for sale (AFS): Mortgage-backed securities $ 981 $ (12 ) $ 2,276 $ (99 ) $ 3,257 $ (111 ) State and political securities 15,691 (104 ) 3,018 (94 ) 18,709 (198 ) Other debt securities 7,512 (148 ) 28,517 (932 ) 36,029 (1,080 ) Total debt securities $ 24,184 $ (264 ) $ 33,811 $ (1,125 ) $ 57,995 $ (1,389 ) Other equity securities $ 1,251 $ (49 ) $ — $ — $ 1,251 $ (49 ) At June 30, 2018 , there were a total of 66 securities in a continuous unrealized loss position for less than twelve months and 30 individual securities that were in a continuous unrealized loss position for twelve months or greater. The Company reviews its position quarterly and has determined that, at June 30, 2018 , the declines outlined in the above table represent temporary declines and the Company does not intend to sell and does not believe it will be required to sell these securities before recovery of their cost basis, which may be at maturity. The Company has concluded that the unrealized losses disclosed above are not other than temporary but are the result of interest rate changes, sector credit ratings changes, or company-specific ratings changes that are not expected to result in the non-collection of principal and interest during the period. The amortized cost and fair value of debt securities at June 30, 2018 , by contractual maturity, are shown below. Expected maturities may differ from contractual maturities since borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. (In Thousands) Amortized Cost Fair Value Due in one year or less $ 6,665 $ 6,663 Due after one year to five years 50,070 49,350 Due after five years to ten years 53,355 51,619 Due after ten years 11,390 11,244 Total $ 121,480 $ 118,876 Total gross proceeds from sales of debt securities available for sale for the three and six months ended June 30, 2018 were $1,120,000 and $4,483,000 , a decrease from the 2017 totals of $6,478,000 and $ 9,130,000 . The following table represents gross realized gains and losses within the available for sale portfolio: Three Months Ended June 30, Six Months Ended June 30, (In Thousands) 2018 2017 2018 2017 Available for sale (AFS): Gross realized gains: Mortgage-backed securities $ 5 $ 24 $ 5 $ 69 State and political securities 19 15 19 29 Total gross realized gains $ 24 $ 39 $ 24 $ 98 Gross realized losses: State and political securities $ — $ — $ 9 $ — Other debt securities 10 51 10 51 Total gross realized losses $ 10 $ 51 $ 19 $ 51 Investment equity securities: Gross realized gains: Financial institution equity securities $ — $ — $ — $ 288 Gross realized losses: Other equity securities $ — $ — $ — $ 150 There were no impairment charges included in gross realized losses for the three and six months ended June 30, 2018 and 2017 , respectively. Investment securities with a carrying value of approximately $72,056,000 and $95,199,000 at June 30, 2018 and December 31, 2017 , respectively, were pledged to secure certain deposits, repurchase agreements, and for other purposes as required by law.

Loans

Loans	6 Months Ended
	Jun. 30, 2018
Loans and Leases Receivable Disclosure [Abstract]
Loans	Loans Management segments the Banks' loan portfolio to a level that enables risk and performance monitoring according to similar risk characteristics. Loans are segmented based on the underlying collateral characteristics. Categories include commercial, financial, and agricultural, real estate, and installment loans. Real estate loans are further segmented into three categories: residential, commercial, and construction, while installment loans are classified as either consumer automobile loans or other installment loans. The following table presents the related aging categories of loans, by segment, as of June 30, 2018 and December 31, 2017 : June 30, 2018 Past Due Past Due 90 30 To 89 Days Or More Non- (In Thousands) Current Days & Still Accruing Accrual Total Commercial, financial, and agricultural $ 183,476 $ 64 $ 59 $ 136 $ 183,735 Real estate mortgage: Residential 609,415 3,972 281 1,918 615,586 Commercial 350,108 1,224 99 4,600 356,031 Construction 35,879 85 3 — 35,967 Consumer automobile loans 112,982 369 — 10 113,361 Other consumer installment loans 25,271 453 21 5 25,750 1,317,131 $ 6,167 $ 463 $ 6,669 1,330,430 Net deferred loan fees and discounts 643 643 Allowance for loan losses (13,034 ) (13,034 ) Loans, net $ 1,304,740 $ 1,318,039 December 31, 2017 Past Due Past Due 90 30 To 89 Days Or More Non- (In Thousands) Current Days & Still Accruing Accrual Total Commercial, financial, and agricultural $ 178,022 $ 663 $ 86 $ 114 $ 178,885 Real estate mortgage: Residential 588,278 6,853 318 1,628 597,077 Commercial 325,148 1,823 80 4,968 332,019 Construction 31,547 116 20 — 31,683 Consumer automobile loans 79,595 87 — 32 79,714 Other consumer installment loans 26,740 202 5 17 26,964 1,229,330 $ 9,744 $ 509 $ 6,759 1,246,342 Net deferred loan fees and discounts 272 272 Allowance for loan losses (12,858 ) (12,858 ) Loans, net $ 1,216,744 $ 1,233,756 The following table presents interest income the Banks would have recorded if interest had been recorded based on the original loan agreement terms and rate of interest for non-accrual loans and interest income recognized on a cash basis for non-accrual loans for the three and six months ended June 30, 2018 and 2017 : Three Months Ended June 30, 2018 2017 (In Thousands) Interest Income That Would Have Been Recorded Based on Original Term and Rate Interest Income Recorded on a Cash Basis Interest Income That Would Have Been Recorded Based on Original Term and Rate Interest Income Recorded on a Cash Basis Commercial, financial, and agricultural $ 3 $ 1 $ 11 $ 6 Real estate mortgage: Residential 37 23 51 32 Commercial 77 22 114 9 Construction — — — — Consumer automobile loans — — — — Other consumer installment loans 1 1 1 — $ 118 $ 47 $ 177 $ 47 Six Months Ended June 30, 2018 2017 (In Thousands) Interest Income That Would Have Been Recorded Based on Original Term and Rate Interest Income Recorded on a Cash Basis Interest Income That Would Have Been Recorded Based on Original Term and Rate Interest Income Recorded on a Cash Basis Commercial, financial, and agricultural $ 4 $ 1 $ 13 $ 6 Real estate mortgage: Residential 68 34 94 51 Commercial 138 39 232 19 Construction — — — — Consumer automobile loans — — — — Other consumer installment loans 1 1 2 1 $ 211 $ 75 $ 341 $ 77 Impaired Loans Impaired loans are loans for which it is probable the Banks will not be able to collect all amounts due according to the contractual terms of the loan agreement. The Banks evaluate such loans for impairment individually and do not aggregate loans by major risk classifications. The definition of “impaired loans” is not the same as the definition of “non-accrual loans,” although the two categories overlap. The Banks may choose to place a loan on non-accrual status due to payment delinquency or uncertain collectability, while not classifying the loan as impaired. Factors considered by management in determining impairment include payment status and collateral value. The amount of impairment for these types of loans is determined by the difference between the present value of the expected cash flows related to the loan, using the original interest rate, and its recorded value, or as a practical expedient in the case of collateralized loans, the difference between the fair value of the collateral and the recorded amount of the loan. When foreclosure is probable, impairment is measured based on the fair value of the collateral. Management evaluates individual loans in all of the commercial segments for possible impairment if the loan is greater than $100,000 and if the loan is either on non-accrual status or has a risk rating of substandard. Management may also elect to measure an individual loan for impairment if less than $100,000 on a case-by-case basis. Mortgage loans on one-to-four family properties and all consumer loans are large groups of smaller-balance homogeneous loans and are measured for impairment collectively. Loans that experience insignificant payment delays, which are defined as 90 days or less, generally are not classified as impaired. Management determines the significance of payment delays on a case-by-case basis taking into consideration all circumstances surrounding the loan and the borrower including the length of the delay, the borrower’s prior payment record, and the amount of shortfall in relation to the principal and interest owed. Interest income for impaired loans is recorded consistent with the Banks' policy on non-accrual loans. The following table presents the recorded investment, unpaid principal balance, and related allowance of impaired loans by segment as of June 30, 2018 and December 31, 2017 : June 30, 2018 Recorded Unpaid Principal Related (In Thousands) Investment Balance Allowance With no related allowance recorded: Commercial, financial, and agricultural $ 1,028 $ 1,028 $ — Real estate mortgage: Residential 1,902 1,902 — Commercial 1,507 1,507 — 4,437 4,437 — With an allowance recorded: Commercial, financial, and agricultural 177 177 73 Real estate mortgage: Residential 2,095 2,144 228 Commercial 7,265 7,265 1,563 9,537 9,586 1,864 Total: Commercial, financial, and agricultural 1,205 1,205 73 Real estate mortgage: Residential 3,997 4,046 228 Commercial 8,772 8,772 1,563 $ 13,974 $ 14,023 $ 1,864 December 31, 2017 Recorded Unpaid Principal Related (In Thousands) Investment Balance Allowance With no related allowance recorded: Commercial, financial, and agricultural $ 1,033 $ 1,033 $ — Real estate mortgage: Residential 1,428 1,428 — Commercial 1,465 1,465 — 3,926 3,926 — With an allowance recorded: Commercial, financial, and agricultural 235 235 96 Real estate mortgage: Residential 2,304 2,353 367 Commercial 7,981 8,031 1,721 10,520 10,619 2,184 Total: Commercial, financial, and agricultural 1,268 1,268 96 Real estate mortgage: Residential 3,732 3,781 367 Commercial 9,446 9,496 1,721 $ 14,446 $ 14,545 $ 2,184 The following table presents the average recorded investment in impaired loans and related interest income recognized for the three and six months ended for June 30, 2018 and 2017 : Three Months Ended June 30, 2018 2017 (In Thousands) Average Investment in Impaired Loans Interest Income Recognized on an Accrual Basis on Impaired Loans Interest Income Recognized on a Cash Basis on Impaired Loans Average Investment in Impaired Loans Interest Income Recognized on an Accrual Basis on Impaired Loans Interest Income Recognized on a Cash Basis on Impaired Loans Commercial, financial, and agricultural $ 1,227 $ 17 $ 1 $ 394 $ 3 $ 6 Real estate mortgage: Residential 4,255 29 23 3,199 14 30 Commercial 9,170 36 22 12,885 52 9 Construction — — — — — — Consumer automobile — — — — — — Other consumer installment loans 1 — 1 10 — 2 $ 14,652 $ 82 $ 47 $ 16,488 $ 69 $ 47 Six Months Ended June 30, 2018 2017 (In Thousands) Average Investment in Impaired Loans Interest Income Recognized on an Accrual Basis on Impaired Loans Interest Income Recognized on a Cash Basis on Impaired Loans Average Investment in Impaired Loans Interest Income Recognized on an Accrual Basis on Impaired Loans Interest Income Recognized on a Cash Basis on Impaired Loans Commercial, financial, and agricultural $ 1,241 $ 34 $ 1 $ 324 $ 7 $ 6 Real estate mortgage: Residential 4,080 67 34 3,212 36 46 Commercial 9,211 94 39 12,635 85 19 Construction — — — — — — Consumer automobile — — — — — — Other consumer installment loans 1 — 1 8 — 2 $ 14,532 $ 195 $ 75 $ 16,179 $ 128 $ 73 Currently, zero funds are committed to be advanced in connection with impaired loans. Troubled Debt Restructurings The loan portfolio also includes certain loans that have been modified in a Troubled Debt Restructuring (“TDR”), where economic concessions have been granted to borrowers who have experienced or are expected to experience financial difficulties. These concessions typically result from loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance, or other actions. Certain TDRs are classified as nonperforming at the time of restructure and may only be returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period, generally six months . There were four loan modifications considered TDR's completed during the six months ended June 30, 2018. Loan modifications that are considered TDR's completed during the three and six months ended June 30, 2018 were as follows: Three Months Ended June 30, 2018 2017 (In Thousands, Except Number of Contracts) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Real estate mortgage: Residential 1 $ 67 $ 67 — $ — $ — Six Months Ended June 30, 2018 2017 (In Thousands, Except Number of Contracts) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Real estate mortgage: Residential 3 $ 169 $ 169 — $ — $ — Commercial 1 106 106 — — — 4 $ 275 $ 275 — $ — $ — There was one loan modification considered to be a TDR made during the twelve months previous to June 30, 2018 that defaulted during the six months ended June 30, 2018 . This defaulted loan type and recorded investment as of June 30, 2018 is as follows: a residential real estate loan with a recorded investment of $3,750 . There were no loan modifications considered TDRs made during the twelve months previous to June 30, 2017 that defaulted during the three and six months ended June 30, 2017. Troubled debt restructurings amounted to $ 8,830,000 and $9,048,000 as of June 30, 2018 and December 31, 2017 . The amount of foreclosed residential real estate held at June 30, 2018 and December 31, 2017 , totaled $485,000 and $422,000 , respectively. Consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process at June 30, 2018 and December 31, 2017 , totaled $78,000 and $378,000 , respectively. Internal Risk Ratings Management uses a ten point internal risk rating system to monitor the credit quality of the overall loan portfolio. The first six categories are considered not criticized, and are aggregated as “Pass” rated. The criticized rating categories utilized by management generally follow bank regulatory definitions. The special mention category includes assets that are currently protected but are potentially weak, resulting in an undue and unwarranted credit risk, but not to the point of justifying a substandard classification. Loans in the substandard category have well-defined weaknesses that jeopardize the liquidation of the debt, and have a distinct possibility that some loss will be sustained if the weaknesses are not corrected. All loans greater than 90 days past due are evaluated for substandard classification. Loans in the doubtful category exhibit the same weaknesses found in the substandard loans, however, the weaknesses are more pronounced. Such loans are static and collection in full is improbable. However, these loans are not yet rated as loss because certain events may occur which would salvage the debt. Loans classified loss are considered uncollectible and charge-off is imminent. To help ensure that risk ratings are accurate and reflect the present and future capacity of borrowers to repay a loan as agreed, the Banks have a structured loan rating process with several layers of internal and external oversight. Generally, consumer and residential mortgage loans are included in the pass category unless a specific action, such as bankruptcy, repossession, or death occurs to raise awareness of a possible credit event. An external annual loan review of large commercial relationships is performed, as well as a sample of smaller transactions. Confirmation of the appropriate risk category is included in the review. Detailed reviews, including plans for resolution, are performed on loans classified as substandard, doubtful, or loss on a quarterly basis. The following table presents the credit quality categories identified above as of June 30, 2018 and December 31, 2017 : June 30, 2018 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment loans (In Thousands) Residential Commercial Construction Totals Pass $ 181,796 $ 613,050 $ 337,974 $ 35,967 $ 113,361 $ 25,750 $ 1,307,898 Special Mention 657 393 7,074 — — — 8,124 Substandard 1,282 2,143 10,983 — — — 14,408 $ 183,735 $ 615,586 $ 356,031 $ 35,967 $ 113,361 $ 25,750 $ 1,330,430 December 31, 2017 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment loans (In Thousands) Residential Commercial Construction Totals Pass $ 175,603 $ 593,828 $ 311,209 $ 31,535 $ 79,714 $ 26,964 $ 1,218,853 Special Mention 738 1,043 7,337 — — — 9,118 Substandard 2,544 2,206 13,473 148 — — 18,371 $ 178,885 $ 597,077 $ 332,019 $ 31,683 $ 79,714 $ 26,964 $ 1,246,342 Allowance for Loan Losses An allowance for loan losses (“ALL”) is maintained to absorb losses from the loan portfolio. The ALL is based on management’s continuing evaluation of the risk characteristics and credit quality of the loan portfolio, assessment of current economic conditions, diversification and size of the portfolio, adequacy of collateral, past and anticipated future loss experience, and the amount of non-performing loans. The Banks' methodology for determining the ALL is based on the requirements of ASC Section 310-10-35 for loans individually evaluated for impairment (previously discussed) and ASC Subtopic 450-20 for loans collectively evaluated for impairment, as well as the Interagency Policy Statements on the Allowance for Loan and Lease Losses and other bank regulatory guidance. The total of the two components represents the Banks' ALL. Loans that are collectively evaluated for impairment are analyzed with general allowances being made as appropriate. Allowances are segmented based on collateral characteristics previously disclosed, and consistent with credit quality monitoring. Loans that are collectively evaluated for impairment are grouped into two classes for evaluation. A general allowance is determined for “Pass” rated credits, while a separate pool allowance is provided for “Criticized” rated credits that are not individually evaluated for impairment. For the general allowances, historical loss trends are used in the estimation of losses in the current portfolio. These historical loss amounts are modified by other qualitative factors. A historical charge-off factor is calculated utilizing a twelve quarter moving average. However, management may adjust the moving average time frame by up to four quarters to adjust for variances in the economic cycle. Management has identified a number of additional qualitative factors which it uses to supplement the historical charge-off factor because these factors are likely to cause estimated credit losses associated with the existing loan pools to differ from historical loss experience. The additional factors that are evaluated quarterly and updated using information obtained from internal, regulatory, and governmental sources are: national and local economic trends and conditions; levels of and trends in delinquency rates and non-accrual loans; trends in volumes and terms of loans; effects of changes in lending policies; experience, ability, and depth of lending staff; value of underlying collateral; and concentrations of credit from a loan type, industry and/or geographic standpoint. Loans in the criticized pools, which possess certain qualities or characteristics that may lead to collection and loss issues, are closely monitored by management and subject to additional qualitative factors. Management also monitors industry loss factors by loan segment for applicable adjustments to actual loss experience. Management reviews the loan portfolio on a quarterly basis in order to make appropriate and timely adjustments to the ALL. When information confirms all or part of specific loans to be uncollectible, these amounts are promptly charged off against the ALL. Activity in the allowance is presented for the three and six months ended June 30, 2018 and 2017 : Three Months Ended June 30, 2018 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment (In Thousands) Residential Commercial Construction Unallocated Totals Beginning Balance $ 1,372 $ 5,656 $ 4,003 $ 156 $ 1,016 $ 305 $ 328 $ 12,836 Charge-offs (3 ) (91 ) — — (22 ) (47 ) — (163 ) Recoveries 8 1 — 3 2 12 — 26 Provision (322 ) 17 (189 ) (41 ) 73 47 750 335 Ending Balance $ 1,055 $ 5,583 $ 3,814 $ 118 $ 1,069 $ 317 $ 1,078 $ 13,034 Three Months Ended June 30, 2017 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment (In Thousands) Residential Commercial Construction Unallocated Totals Beginning Balance $ 1,441 $ 5,571 $ 4,466 $ 187 $ 202 $ 346 $ 692 $ 12,905 Charge-offs 200 (287 ) — — (15 ) (39 ) — (141 ) Recoveries 105 5 1 2 — 17 — 130 Provision (15 ) 48 (740 ) (17 ) 162 106 671 215 Ending Balance $ 1,731 $ 5,337 $ 3,727 $ 172 $ 349 $ 430 $ 1,363 $ 13,109 Six Months Ended June 30, 2018 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment (In Thousands) Residential Commercial Construction Unallocated Totals Beginning Balance $ 1,177 $ 5,679 $ 4,277 $ 155 $ 804 $ 271 $ 495 $ 12,858 Charge-offs (36 ) (142 ) (55 ) — (52 ) (118 ) — (403 ) Recoveries 15 25 — 5 3 36 — 84 Provision (101 ) 21 (408 ) (42 ) 314 128 583 495 Ending Balance $ 1,055 $ 5,583 $ 3,814 $ 118 $ 1,069 $ 317 $ 1,078 $ 13,034 Six Months Ended June 30, 2017 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment (In Thousands) Residential Commercial Construction Unallocated Totals Beginning Balance $ 1,554 $ 5,383 $ 4,975 $ 178 $ 143 $ 273 $ 390 $ 12,896 Charge-offs (13 ) (385 ) — — (18 ) (113 ) — (529 ) Recoveries 111 35 1 5 — 45 — 197 Provision 79 304 (1,249 ) (11 ) 224 225 973 545 Ending Balance $ 1,731 $ 5,337 $ 3,727 $ 172 $ 349 $ 430 $ 1,363 $ 13,109 The shift in allocation of the loan provision is primarily due to portfolio growth in the consumer automobile residential and improved credit metrics within the real estate mortgage portfolio. The Company grants commercial, industrial, residential, and installment loans to customers primarily throughout north-east and central Pennsylvania. Although the Company has a diversified loan portfolio, a substantial portion of its debtors’ ability to honor their contracts is dependent on the economic conditions within this region. The Company has a concentration of the following to gross loans at June 30, 2018 and 2017 : June 30, 2018 2017 Owners of residential rental properties 14.90 % 15.64 % Owners of commercial rental properties 13.30 % 14.56 % The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment based on impairment method as of June 30, 2018 and December 31, 2017 : June 30, 2018 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer Automobile Other consumer installment Unallocated (In Thousands) Residential Commercial Construction Totals Allowance for Loan Losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 73 $ 228 $ 1,563 $ — $ — $ — $ — $ 1,864 Collectively evaluated for impairment 982 5,355 2,251 118 1,069 317 1,078 11,170 Total ending allowance balance $ 1,055 $ 5,583 $ 3,814 $ 118 $ 1,069 $ 317 $ 1,078 $ 13,034 Loans: Individually evaluated for impairment $ 1,205 $ 3,997 $ 8,772 $ — $ — $ — $ 13,974 Collectively evaluated for impairment 182,530 611,589 347,259 35,967 113,361 25,750 1,316,456 Total ending loans balance $ 183,735 $ 615,586 $ 356,031 $ 35,967 $ 113,361 $ 25,750 $ 1,330,430 December 31, 2017 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer Automobile Other consumer installment Unallocated (In Thousands) Residential Commercial Construction Totals Allowance for Loan Losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 96 $ 367 $ 1,721 $ — $ — $ — $ — $ 2,184 Collectively evaluated for impairment 1,081 5,312 2,556 155 804 271 495 10,674 Total ending allowance balance $ 1,177 $ 5,679 $ 4,277 $ 155 $ 804 $ 271 $ 495 $ 12,858 Loans: Individually evaluated for impairment $ 1,268 $ 3,732 $ 9,446 $ — $ — $ — $ 14,446 Collectively evaluated for impairment 177,617 593,345 322,573 31,683 79,714 26,964 1,231,896 Total ending loans balance $ 178,885 $ 597,077 $ 332,019 $ 31,683 $ 79,714 $ 26,964 $ 1,246,342

Net Periodic Benefit Cost-Defin

Net Periodic Benefit Cost-Defined Benefit Plans	6 Months Ended
	Jun. 30, 2018
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Net Periodic Benefit Cost-Defined Benefit Plans	Net Periodic Benefit Cost-Defined Benefit Plans For a detailed disclosure on the Company’s pension and employee benefits plans, please refer to Note 13 of the Company’s Consolidated Financial Statements included in the Annual Report on Form 10-K for the year ended December 31, 2017 . The following sets forth the components of the net periodic benefit/cost of the domestic non-contributory defined benefit plan for the three and six months ended June 30, 2018 and 2017 , respectively: Three Months Ended June 30, Six Months Ended June 30, (In Thousands) 2018 2017 2018 2017 Service cost $ — $ 42 $ — $ 83 Interest cost 177 189 353 378 Expected return on plan assets (274 ) (263 ) (548 ) (525 ) Amortization of net loss 42 40 84 84 Net periodic (benefit) cost $ (55 ) $ 8 $ (111 ) $ 20 Employer Contributions The Company previously disclosed in its consolidated financial statements, included in the Annual Report on Form 10-K for the year ended December 31, 2017 , that it expected to contribute a minimum of $500,000 to its defined benefit plan in 2018 . As of June 30, 2018 , there were contributions of $250,000 made to the plan with additional contributions of at least $250,000 anticipated during the remainder of 2018 .

Employee Stock Purchase Plan

Employee Stock Purchase Plan	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Employee Stock Purchase Plan	Employee Stock Purchase Plan The Company maintains an Employee Stock Purchase Plan (“Plan”). The Plan is intended to encourage employee participation in the ownership and economic progress of the Company. The Plan allows for up to 1,000,000 shares to be purchased by employees. The purchase price of the shares is 95% of market value with an employee eligible to purchase up to the lesser of 15% of base compensation or $12,000 in market value annually. During the six months ended June 30, 2018 and 2017 , there were 1,196 and 1,083 shares issued under the plan, respectively.

Off-Balance Sheet Risk

Off-Balance Sheet Risk	6 Months Ended
	Jun. 30, 2018
Off Balance Sheet Risk
Off-Balance Sheet Risk	Off-Balance Sheet Risk The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments are primarily comprised of commitments to extend credit, standby letters of credit, and credit exposure from the sale of assets with recourse. These instruments involve, to varying degrees, elements of credit, interest rate, or liquidity risk in excess of the amount recognized in the Consolidated Balance Sheet. The contract amounts of these instruments express the extent of involvement the Company has in particular classes of financial instruments. The Company’s exposure to credit loss from nonperformance by the other party to the financial instruments for commitments to extend credit and standby letters of credit is represented by the contractual amount of these instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. The Company may require collateral or other security to support financial instruments with off-balance sheet credit risk. Financial instruments whose contract amounts represent credit risk are as follows at June 30, 2018 and December 31, 2017 : (In Thousands) June 30, 2018 December 31, 2017 Commitments to extend credit $ 281,934 $ 264,982 Standby letters of credit 40,706 10,406 Credit exposure from the sale of assets with recourse 5,497 4,893 $ 328,137 $ 280,281 Commitments to extend credit are legally binding agreements to lend to customers. Commitments generally have fixed expiration dates or other termination clauses and may require payment of fees. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future liquidity requirements. The Company evaluates each customer’s credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company, on an extension of credit is based on management’s credit assessment of the counterparty. Standby letters of credit represent conditional commitments issued by the Company to guarantee the performance of a customer to a third party. These instruments are issued primarily to support bid or performance related contracts. The coverage period for these instruments is typically a one year period with an annual renewal option subject to prior approval by management. Fees earned from the issuance of these letters are recognized upon expiration of the coverage period. For secured letters of credit, the collateral is typically Bank deposit instruments or customer business assets.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The following disclosures show the hierarchal disclosure framework associated with the level of pricing observations utilized in measuring assets and liabilities at fair value. Level I: Quoted prices are available in active markets for identical assets or liabilities as of the reported date. Level II: Pricing inputs are other than quoted prices in active markets, which are either directly or indirectly observable as of the reported date. The nature of these assets and liabilities include items for which quoted prices are available but traded less frequently, and items that are fair valued using other financial instruments, the parameters of which can be directly observed. Level III: Assets and liabilities that have little to no pricing observability as of the reported date. These items do not have two-way markets and are measured using management’s best estimate of fair value, where the inputs into the determination of fair value require significant management judgment or estimation. This hierarchy requires the use of observable market data when available. The following table presents the assets reported on the Consolidated Balance Sheet at their fair value on a recurring basis as of June 30, 2018 and December 31, 2017 , by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. June 30, 2018 (In Thousands) Level I Level II Level III Total Assets measured on a recurring basis: Investment securities, available for sale: Mortgage-backed securities $ — $ 5,516 $ — $ 5,516 State and political securities — 65,032 — 65,032 Other debt securities — 48,328 — 48,328 Investment equity securities: Financial institution equity securities 1,217 — — 1,217 Other equity securities 1,221 — — 1,221 Investment securities, trading: Other equity securities 243 — — 243 December 31, 2017 (In Thousands) Level I Level II Level III Total Assets measured on a recurring basis: Investment securities, available for sale: Mortgage-backed securities $ — $ 4,213 $ — $ 4,213 State and political securities — 56,508 — 56,508 Other debt securities — 47,906 — 47,906 Financial institution equity securities 1,265 — — 1,265 Other equity securities 1,251 — — 1,251 Investment securities, trading: Other equity securities 190 — — 190 The following table presents the assets reported on the Consolidated Balance Sheet at their fair value on a non-recurring basis as of June 30, 2018 and December 31, 2017 , by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. June 30, 2018 (In Thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ — $ — $ 12,110 $ 12,110 Other real estate owned — — 485 485 December 31, 2017 (In Thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ — $ — $ 12,262 $ 12,262 Other real estate owned — — 143 143 The following tables present a listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques as of June 30, 2018 and December 31, 2017 : June 30, 2018 Quantitative Information About Level III Fair Value Measurements (In Thousands) Fair Value Valuation Technique(s) Unobservable Inputs Range Weighted Average Impaired loans $ 6,481 Discounted cash flow Temporary reduction in payment amount 0 to (70)% (13)% 5,629 Appraisal of collateral (1) Appraisal adjustments (1) 0 to (20)% (17)% Other real estate owned $ 485 Appraisal of collateral (1) Appraisal adjustments (1) (20)% (20)% (1) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. December 31, 2017 Quantitative Information About Level III Fair Value Measurements (In Thousands) Fair Value Valuation Technique(s) Unobservable Inputs Range Weighted Average Impaired loans $ 6,583 Discounted cash flow Temporary reduction in payment amount 3 to (70)% (4)% 5,679 Appraisal of collateral (1) Appraisal adjustments (1) 0 to (20)% (17)% Other real estate owned $ 143 Appraisal of collateral (1) Appraisal adjustments (1) (20)% (20)% (1) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The discounted cash flow valuation technique is utilized to determine the fair value of performing impaired loans, while non-performing impaired loans utilize the appraisal of collateral method. The significant unobservable inputs used in the fair value measurement of the Company’s impaired loans using the discounted cash flow valuation technique include temporary changes in payment amounts and the probability of default. Significant increases (decreases) in payment amounts would result in significantly higher (lower) fair value measurements. The probability of default is 0% for impaired loans using the discounted cash flow valuation technique because all defaulted impaired loans are valued using the appraisal of collateral valuation technique. The significant unobservable input used in the fair value measurement of the Company’s impaired loans using the appraisal of collateral valuation technique include appraisal adjustments, which are adjustments to appraisals by management for qualitative factors such as economic conditions and estimated liquidation expenses. The significant unobservable input used in the fair value measurement of the Company’s other real estate owned are the same inputs used to value impaired loans using the appraisal of collateral valuation technique.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The Company is required to disclose fair values for its financial instruments. Fair values are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Also, it is the Company’s general practice and intention to hold most of its financial instruments to maturity and not to engage in trading or sales activities. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These fair values are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions can significantly affect the fair values. Fair values have been determined by the Company using historical data and an estimation methodology suitable for each category of financial instruments. The Company’s fair values, methods, and assumptions are set forth below for the Company’s other financial instruments. As certain assets and liabilities, such as deferred tax assets, premises and equipment, and many other operational elements of the Company, are not considered financial instruments but have value, this fair value of financial instruments would not represent the full market value of the Company. The fair values of the Company’s financial instruments not recorded at fair value on a recurring or nonrecurring basis are as follows at June 30, 2018 and December 31, 2017 : Carrying Fair Fair Value Measurements at June 30, 2018 (In Thousands) Value Value Level I Level II Level III Financial assets: Cash and cash equivalents (1) $ 56,007 $ 56,007 $ 56,007 $ — $ — Restricted investment in bank stock 16,716 16,716 — 16,716 — Loans held for sale (1) 2,118 2,118 2,118 — — Loans, net 1,318,039 1,318,938 — — 1,318,938 Bank-owned life insurance (1) 28,315 28,315 28,315 — — Accrued interest receivable (1) 4,618 4,618 4,618 — — Financial liabilities: Interest-bearing deposits $ 879,825 $ 853,441 $ 604,667 $ — $ 248,774 Noninterest-bearing deposits (1) 311,194 311,194 311,194 — — Short-term borrowings (1) 134,637 134,637 134,637 — — Long-term borrowings 123,970 122,292 — — 122,292 Accrued interest payable (1) 896 896 896 — — (1) The financial instrument is carried at cost at June 30, 2018 , which approximate the fair value of the instruments Carrying Fair Fair Value Measurements at December 31, 2017 (In Thousands) Value Value Level I Level II Level III Financial assets: Cash and cash equivalents $ 27,243 $ 27,243 $ 27,243 $ — $ — Investment securities: Available for sale 111,143 111,143 2,516 108,627 — Trading 190 190 190 — — Restricted investment in bank stock 13,332 13,332 — 13,332 — Loans held for sale 1,196 1,196 1,196 — — Loans, net 1,233,756 1,264,584 — — 1,264,584 Bank-owned life insurance 27,982 27,982 27,982 — — Accrued interest receivable 4,321 4,321 4,321 — — Financial liabilities: Interest-bearing deposits $ 843,004 $ 838,441 $ 611,187 $ — $ 227,254 Noninterest-bearing deposits 303,316 303,316 303,316 — — Short-term borrowings 100,748 100,748 100,748 — — Long-term borrowings 70,970 70,280 — — 70,280 Accrued interest payable 502 502 502 — — The methods and assumptions used by the Company in estimating fair values of financial instruments at June 30, 2018 is in accordance with ASC Topic 825, Financial Instruments, as amended by ASU 2016-01 which requires public entities to use exit pricing in the calculation of the above tables. Prior period fair value calculations were ran on the assumption of entry pricing and therefore the comparability between the periods above are diminished. Restricted Stock: The carrying value of restricted securities such as stock in the Federal Home Loan Bank ("FHLB") and other bankers' bank stock approximates fair value. Loans: Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as commercial, financial, and agricultural, commercial real estate, residential real estate, construction real estate, and installment loans to individuals. Each loan category is further segmented into fixed and adjustable rate interest terms and by performing and nonperforming categories. The fair value of performing loans is calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest rate risk inherent in the loan. The estimate of maturity is based on the Company’s historical experience with repayments for each loan classification, modified, as required, by an estimate of the effect of current economic and lending conditions. Fair value for significant nonperforming loans is based on recent external appraisals. If appraisals are not available, estimated cash flows are discounted using a rate commensurate with the risk associated with the estimated cash flows. Assumptions regarding credit risk, cash flows, and discounted rates are judgmentally determined using available market information and specific borrower information. Deposits: The fair value of deposits with no stated maturity, such as savings, NOW, and money market accounts, is equal to the amount payable on demand. The fair value of certificates of deposit is based on the discounted value of contractual cash flows. Long Term Borrowings: The fair value of long term borrowings is based on the discounted value of contractual cash flows. Commitments to Extend Credit, Standby Letters of Credit, and Financial Guarantees Written: There is no material difference between the notional amount and the estimated fair value of off-balance sheet items. The contractual amounts of unfunded commitments and letters of credit are presented in Note 9 (Off-Balance Sheet Risk).

Stock Options

Stock Options	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Options	Stock Options In 2014, the Company adopted the 2014 Equity Incentive Plan designed to help the Company attract, retain, and motivate employees and non-employee directors. Incentive stock options, non-qualified stock options, and restricted stock may be granted as part of the plan. As of January 1, 2018, the Company had a total of 93,500 stock options outstanding. During the period ended June 30, 2018, the Company issued 25,000 stock options in total, to a group of employees, that have a strike price of $45.11 . The options granted in 2018 all expire ten years from the grant date however; of the 25,000 grants awarded, 12,500 of the options have a three year vesting period while the remaining 12,500 options vest in five years. Stock Options Granted Date Shares Forfeited Outstanding Strike Price Vesting Period Expiration January 5, 2018 12,500 — 12,500 $ 45.11 3 years 10 years January 5, 2018 12,500 — 12,500 45.11 5 years 10 years March 24, 2017 46,250 (4,500 ) 41,750 44.21 3 years 10 years March 24, 2017 23,750 — 23,750 44.21 5 years 10 years August 27, 2015 38,750 (14,250 ) 24,500 42.03 5 years 10 years A summary of stock option activity is presented below: June 30, 2018 June 30, 2017 Shares Weighted Average Exercise Price Shares Weighted Average Exercise Price Outstanding, beginning of year 93,500 $ 43.59 26,500 $ 42.03 Granted 25,000 45.11 70,000 44.21 Exercised — — — — Forfeited (3,500 ) 42.96 — — Expired — — — — Outstanding, end of period 115,000 $ 43.94 96,500 $ 43.61 Exercisable, end of period — $ — — $ — The estimated fair value of options, including the effect of estimated forfeitures, is recognized as expense on a straightline basis over the options’ vesting periods while ensuring that the cumulative amount of compensation cost recognized at least equals the value of the vested portion of the award at that date. The Company determines the fair value of options granted using the Black-Scholes option-pricing model. The risk-free interest rate is based on the United States Treasury bond with a similar term to the expected life of the options at the grant date. Expected volatility was estimated based on the adjusted historic volatility of the Company’s shares. The expected life was estimated to equal the contractual life of the options. The dividend yield rate was based upon recent historical dividends paid on shares. Compensation expense for stock options is recognized using the fair value when the stock options are granted and is amortized over the options' vesting period. Compensation expense, related to stock options was $4,000 and $12,000 for the three and six months ended June 30, 2018 compared to $8,000 and $13,000 for the same period of 2017 . As of June 30, 2018 , no stock options were exercisable and the weighted average years to expiration were 8.6 years. The fair value of options granted during the three and six months ended June 30, 2018 was approximately $1,103,000 or $44.11 per award. Total unrecognized compensation cost for non-vested options was $94,000 and will be recognized over their weighted average remaining vesting period of 3.5 years.

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition On January 1, 2018, the Company adopted ASU No. 2014-09 “Revenue from Contracts with Customers” (Topic 606) and all subsequent ASUs that modified Topic 606 using the modified retrospective method, and applied the guidance to all contracts in scope that were not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606, while prior period amounts were not adjusted and continue to be reported in accordance with our historic accounting under Topic 605. The core principle of Topic 606, Revenue from Contracts with Customers , is that an entity recognize revenue at an amount that reflects the consideration to which the entity expects to be entitled in exchange for transferring goods or services to a customer. Topic 606 requires entities to exercise more judgment when considering the terms of a contract than under Topic 605, Revenue Recognition . Topic 606 applies to all contracts with customers to provide goods or services in the ordinary course of business, except for contracts that are specifically excluded from its scope. Topic 606 does not apply to revenue associated with interest income on financial instruments, including loans and securities. Additionally, certain noninterest income streams such as certain credit and debit card fees, income from bank owned life insurance, and gain and losses on sales of investment securities are out of scope of Topic 606. Topic 606 is applicable to noninterest revenue streams such as service charges on deposit accounts, merchant income, wire transfer income, check cashing fees, check printing fees, safe deposit box rental fees, life insurance and brokerage commissions. These revenue streams are largely transactional based and revenue is recognized upon completion of transaction. Principal versus Agent Considerations When more than one party is involved in providing goods or services to a customer, Topic 606 requires the Company to determine whether it is the principal or an agent in these transactions by evaluating the nature of its promise to the customer. An entity is a principal and therefore records revenue on a gross basis if it controls a promised good or service before transferring that good or service to the customer. An entity is an agent and records as revenue the net amount it retains for its agency services if its role is to arrange for another entity to provide the goods or services. The Company most commonly acts as a principal and records revenue on a gross basis, except in certain circumstances. As an example, revenues earned from interchange fees, in which the Company acts as an agent, are recorded as non-interest income, net of the related expenses paid to the principal. Brokerage and insurance commissions are recognized when the M Group's services to the broker dealer and investment representative are complete. Debit Card Fees Interchange fees are one source of debit and credit card income that is comprised of an amount merchants pay card-issuing banks for the processing of their electronic transactions as a form of payment. ATM service charges, check card usage, and POS debit card transactions generate interchange and debit card income. Per Topic 606 interchange and debit card transaction fees are reported net of related network costs. See Note 1 - Newly Adopted Accounting Standards. Prior to the adoption of Topic 606, non-interest expense included network costs. Interchange and debit card transaction fees for the three and six months ended June 30, 2018 reported on a net basis totaled $373,000 and $706,000 ; for the corresponding periods of 2017 such amounts were $340,000 and $611,000 , respectively. The below table compares gross interchange and debit card transaction fees net network costs for 2018 and 2017: Three Months Ended June 30, Six months ended June 30, (In Thousands) 2018 2017 2018 2017 Debit card transaction fees $ 541 $ 501 $ 1,060 $ 935 Other processing service fees 67 63 128 122 Gross interchange and card based transaction fees 608 564 1,188 1,057 Network costs 235 224 482 446 Net interchange and card based transaction fees $ 373 $ 340 $ 706 $ 611

Reclassification of Comparative

Reclassification of Comparative Amounts	6 Months Ended
	Jun. 30, 2018
Reclassification of Comparative Amounts
Reclassification of Comparative Amounts	Reclassification of Comparative Amounts Certain comparative amounts for the prior period have been reclassified to conform to current period presentations. Such reclassifications had no effect on net income or shareholders’ equity.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The consolidated financial statements include the accounts of Penns Woods Bancorp, Inc. (the “Company”) and its wholly-owned subsidiaries: Woods Investment Company, Inc., Woods Real Estate Development Company, Inc., Luzerne Bank, and Jersey Shore State Bank (Jersey Shore State Bank and Luzerne Bank are referred to together as the “Banks”) and Jersey Shore State Bank’s wholly-owned subsidiary, The M Group, Inc. D/B/A The Comprehensive Financial Group (“The M Group”). The Company also owns a controlling interest in United Insurance Solutions, LLC. All significant inter-company balances and transactions have been eliminated in the consolidation.
Newly Adopted Accounting Pronouncements and Recent Accounting Pronouncements	In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (a new revenue recognition standard). The Update’s core principle is that a company will recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, this Update specifies the accounting for certain costs to obtain or fulfill a contract with a customer and expands disclosure requirements for revenue recognition. This Update is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Upon adoption on January 1, 2018, we have included the related new disclosure requirements in Note 13 . In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . This Update applies to all entities that hold financial assets or owe financial liabilities and is intended to provide more useful information on the recognition, measurement, presentation, and disclosure of financial instruments. Among other things, this Update (a) requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income; (b) simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment; (c) eliminates the requirement to disclose the fair value of financial instruments measured at amortized cost for entities that are not public business entities; (d) eliminates the requirement for public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet; (e) requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; (f) requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset (that is, securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements; and (g) clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other deferred tax assets. For public business entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. For all other entities, including not-for-profit entities and employee benefit plans within the scope of Topics 960 through 965 on plan accounting, the amendments in this Update are effective for fiscal years beginning after December 15, 2018, and interim periods within fiscal years beginning after December 15, 2019. All entities that are not public business entities may adopt the amendments in this Update earlier as of the fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . The standard requires lessees to recognize the assets and liabilities that arise from leases on the balance sheet. A lessee should recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. A short-term lease is defined as one in which (a) the lease term is 12 months or less and (b) there is not an option to purchase the underlying asset that the lessee is reasonably certain to exercise. For short-term leases, lessees may elect to recognize lease payments over the lease term on a straight-line basis. For public business entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2018, and interim periods within those years. For all other entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2019, and for interim periods within fiscal years beginning after December 15, 2020. The amendments should be applied at the beginning of the earliest period presented using a modified retrospective approach with earlier application permitted as of the beginning of an interim or annual reporting period. The Company is currently assessing the practical expedients it may elect at adoption, but does not anticipate the amendments will have a significant impact on the financial statements. Based on the Company’s preliminary analysis of its current portfolio, the impact to the Company’s balance sheet is estimated to result in less than a 1 percent increase in assets and liabilities. The Company also anticipates additional disclosures to be provided at adoption. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments , which changes the impairment model for most financial assets. This Update is intended to improve financial reporting by requiring timelier recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. The underlying premise of the Update is that financial assets measured at amortized cost should be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. The allowance for credit losses should reflect management’s current estimate of credit losses that are expected to occur over the remaining life of a financial asset. The income statement will be effected for the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. ASU 2016-13 is effective for annual and interim periods beginning after December 15, 2019, and early adoption is permitted for annual and interim periods beginning after December 15, 2018. With certain exceptions, transition to the new requirements will be through a cumulative effect adjustment to opening retained earnings as of the beginning of the first reporting period in which the guidance is adopted. We expect to recognize a one-time cumulative effect adjustment to the allowance for loan losses as of the beginning of the first reporting period in which the new standard is effective, but cannot yet determine the magnitude of any such one-time adjustment or the overall impact of the new guidance on the consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment . To simplify the subsequent measurement of goodwill, the FASB eliminated Step 2 from the goodwill impairment test. In computing the implied fair value of goodwill under Step 2, an entity had to perform procedures to determine the fair value at the impairment testing date of its assets and liabilities (including unrecognized assets and liabilities) following the procedure that would be required in determining the fair value of assets acquired and liabilities assumed in a business combination. Instead, under the amendments in this Update, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting units fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. A public business entity that is a U.S. Securities and Exchange Commission (SEC) filer should adopt the amendments in this Update for its annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. A public business entity that is not an SEC filer should adopt the amendments in this Update for its annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2020. All other entities, including not-for-profit entities, that are adopting the amendments in this Update should do so for their annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2021. This Update is not expected to have a significant impact on the Company’s financial statements. In February 2017, the FASB issued ASU 2017-06 , Plan Accounting: Defined Benefit Pension Plans (Topic 960), Defined Contribution Pension Plans (Topic 962), and Health and Welfare Benefit Plans (Topic 965) . This Update relates primarily to the reporting by an employee benefit plan for its interest in a master trust, which is a trust for which a regulated financial institution serves as a trustee or custodian and in which assets of more than one plan sponsored by a single employer or by a group of employers under common control are held. For each master trust in which a plan holds an interest, the amendments in this Update require a plan's interest in that master trust and any change in that interest to be presented in separate line items in the statement of net assets available for benefits and in the statement of changes in net assets available for benefits, respectively. The amendments in this Update remove the requirement to disclose the percentage interest in the master trust for plans with divided interests and require that all plans disclose the dollar amount of their interest in each of those general types of investments, which supplements the existing requirement to disclose the master trusts balances in each general type of investments. There are also increased disclosure requirements for investments in master trusts. The amendments in this Update are effective for fiscal years beginning after December 15, 2018. Early adoption is permitte d. This Update is not expected to have a significant impact on the Company’s financial statements. In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20). The amendments in this Update shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. For public business entities, the amendments in this Update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. For all other entities, the amendments are effective for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity should apply the amendments in this Update on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. Additionally, in the period of adoption, an entity should provide disclosures about a change in accounting principle. This Update is not expected to have a significant impact on the Company’s financial statements. In July 2017, the FASB issued ASU 2017-11, Earnings Per Share (Topic 260), Distinguishing Liabilities from Equity (Topic 480), and Derivative and Hedging (Topic 815) . The amendments in Part I of this Update change the classification analysis of certain equity-linked financial instruments (or embedded features) with down-round features. When determining whether certain financial instruments should be classified as liabilities or equity instruments, a down-round feature no longer precludes equity classification when assessing whether the instrument is indexed to an entity’s own stock. The amendments also clarify existing disclosure requirements for equity-classified instruments. As a result, a freestanding equity-linked financial instrument (or embedded conversion option) no longer would be accounted for as a derivative liability at fair value as a result of the existence of a down-round feature. For freestanding equity classified financial instruments, the amendments require entities that present earnings per share (EPS) in accordance with Topic 260 to recognize the effect of the down-round feature when it is triggered. That effect is treated as a dividend and as a reduction of income available to common shareholders in basic EPS. Convertible instruments with embedded conversion options that have down- round features are now subject to the specialized guidance for contingent beneficial conversion features (in Subtopic 470-20, Debt-Debt with Conversion and Other Options ), including related EPS guidance (in Topic 260). The amendments in Part II of this Update recharacterize the indefinite deferral of certain provisions of Topic 480 that now are presented as pending content in the Accounting Standards Codification, to a scope exception. Those amendments do not have an accounting effect. For public business entities, the amendments in Part I of this Update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. For all other entities, the amendments in Part I of this Update are effective for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020. Early adoption is permitted for all entities, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The amendments in Part I of this Update should be applied either retrospectively to outstanding financial instruments with a down-round feature by means of a cumulative-effect adjustment to the statement of financial position as of the beginning of the first fiscal year and interim period(s) in which the pending content that links to this paragraph is effective or retrospectively to outstanding financial instruments with a down-round feature for each prior reporting period presented in accordance with the guidance on accounting changes in paragraphs 250-10-45-5 through 45-10. The amendments in Part II of this Update do not require any transition guidance because those amendments do not have an accounting effect. This Update is not expected to have a significant impact on the Company’s financial statements. In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 850) , the objective of which is to improve the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. In addition, the amendments in this Update make certain targeted improvements to simplify the application and disclosure of the hedge accounting guidance in current general accepted accounting principles. For public business entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. For all other entities, the amendments are effective for fiscal years beginning after December 15, 2019, and interim periods beginning after December 15, 2020. Early application is permitted in any period after issuance. For cash flow and net investment hedges existing at the date of adoption, an entity should apply a cumulative-effect adjustment related to eliminating the separate measurement of ineffectiveness to accumulated other comprehensive income with a corresponding adjustment to the opening balance of retained earnings as of the beginning of the fiscal year that an entity adopts the amendments in this Update. The amended presentation and disclosure guidance is required only prospectively. This Update is not expected to have a significant impact on the Company’s financial statements. In January 2018, the FASB issued ASU 2018-01, Leases (Topic 842) , which provides an optional transition practical expedient to not evaluate under Topic 842 existing or expired land easements that were not previously accounted for as leases under the current lease guidance in Topic 840. An entity that elects this practical expedient should evaluate new or modified land easements under Topic 842 beginning at the date the entity adopts Topic 842; otherwise, an entity should evaluate all existing or expired land easements in connection with the adoption of the new lease requirements in Topic 842 to assess whether they meet the definition of a lease. The effective date and transition requirements for the amendments are the same as the effective date and transition requirements in ASU 2016-02. This Update is not expected to have a significant impact on the Company’s financial statements. In February 2018, the FASB issued ASU 2018-03, Technical Corrections and Improvements to Financial Instruments-Overall (Subtopic 825-10) , to clarify certain aspects of the guidance issued in ASU 2016-01. (1) An entity measuring an equity security using the measurement alternative may change its measurement approach to a fair value method in accordance with Topic 820, Fair Value Measurement , through an irrevocable election that would apply to that security and all identical or similar investments of the same issuer. Once an entity makes this election, the entity should measure all future purchases of identical or similar investments of the same issuer using a fair value method in accordance with Topic 820. (2) Adjustments made under the measurement alternative are intended to reflect the fair value of the security as of the date that the observable transaction for a similar security took place. (3) Remeasuring the entire value of forward contracts and purchased options is required when observable transactions occur on the underlying equity securities. (4) When the fair value option is elected for a financial liability, the guidance in paragraph 825-10-45-5 should be applied, regardless of whether the fair value option was elected under either Subtopic 815-15, Derivatives and Hedging-Embedded Derivatives , or 825-10, Financial Instruments-Overall . (5) Financial liabilities for which the fair value option is elected, the amount of change in fair value that relates to the instrument specific credit risk should first be measured in the currency of denomination when presented separately from the total change in fair value of the financial liability. Then, both components of the change in the fair value of the liability should be remeasured into the functional currency of the reporting entity using end-of-period spot rates. (6) The prospective transition approach for equity securities without a readily determinable fair value in the amendments in Update 2016-01 is meant only for instances in which the measurement alternative is applied. An insurance entity subject to the guidance in Topic 944, Financial Services- Insurance , should apply a prospective transition method when applying the amendments related to equity securities without readily determinable fair values. An insurance entity should apply the selected prospective transition method consistently to the entity’s entire population of equity securities for which the measurement alternative is elected. For public business entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years beginning after June 15, 2018. Public business entities with fiscal years beginning between December 15, 2017, and June 15, 2018, are not required to adopt these amendments until the interim period beginning after June 15, 2018, and public business entities with fiscal years beginning between June 15, 2018, and December 15, 2018, are not required to adopt these amendments before adopting the amendments in Update 2016-01. For all other entities, the effective date is the same as the effective date in Update 2016-01. All entities may early adopt these amendments for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, as long as they have adopted Update 2016-01. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations. In March 2018, the FASB issued ASU 2018-04, Investments - Debt Securities (Topic 320) and Regulated Operations (Topic 980) - Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 117 and SEC Release No. 33-9273, ASU 2018-04 supersedes various SEC paragraphs and adds an SEC paragraph pursuant to the issuance of Staff Accounting Bulletin No. 117.

Accumulated Other Comprehensi24

Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jun. 30, 2018
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Schedule of changes in accumulated other comprehensive income by component	The changes in accumulated other comprehensive loss by component shown net of tax and parenthesis indicating debits, as of June 30, 2018 and 2017 were as follows: Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 (In Thousands) Net Unrealized Loss on Available for Sale Securities Defined Benefit Plan Total Net Unrealized Gain (Loss) on Available for Sale Securities Defined Benefit Plan Total Beginning balance $ (1,740 ) $ (4,886 ) $ (6,626 ) $ (281 ) $ (4,263 ) $ (4,544 ) Other comprehensive (loss) gain before reclassifications (307 ) — (307 ) 257 — 257 Amounts reclassified from accumulated other comprehensive loss (10 ) 33 23 8 30 38 Net current-period other comprehensive (loss) income (317 ) 33 (284 ) 265 30 295 Ending balance $ (2,057 ) $ (4,853 ) $ (6,910 ) $ (16 ) $ (4,233 ) $ (4,249 ) Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 (In Thousands) Net Unrealized Loss on Available for Sale Securities Defined Benefit Plan Total Net Unrealized Gain (Loss) on Available for Sale Securities Defined Benefit Plan Total Beginning balance $ (54 ) $ (4,920 ) $ (4,974 ) $ (639 ) $ (4,289 ) $ (4,928 ) Other comprehensive (loss) gain before reclassifications (1,462 ) — (1,462 ) 746 — 746 Amounts reclassified from accumulated other comprehensive loss (4 ) 67 63 (123 ) 56 (67 ) Net current-period other comprehensive (loss) income (1,466 ) 67 (1,399 ) 623 56 679 Reclassification from adoption of 2016-01 (537 ) — (537 ) — — — Ending balance $ (2,057 ) $ (4,853 ) $ (6,910 ) $ (16 ) $ (4,233 ) $ (4,249 )
Schedule of reclassifications out of accumulated other comprehensive income (loss)	The reclassifications out of accumulated other comprehensive loss shown, net of tax and parenthesis indicating debits to net income, as of June 30, 2018 and 2017 were as follows: Details about Accumulated Other Comprehensive Loss Components Amount Reclassified from Accumulated Other Comprehensive Loss Affected Line Item Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Net unrealized gain (loss) on available for sale securities $ 14 $ (12 ) Net securities (losses) gains, available for sale Income tax effect (4 ) 4 Income tax provision Total reclassifications for the period $ 10 $ (8 ) Net unrecognized pension costs $ (42 ) $ (40 ) Salaries and employee benefits Income tax effect 9 10 Income tax provision Total reclassifications for the period $ (33 ) $ (30 ) Details about Accumulated Other Comprehensive Loss Components Amount Reclassified from Accumulated Other Comprehensive Loss Affected Line Item in the Consolidated Statement of Income Six months ended June 30, 2018 Six months ended June 30, 2017 Net unrealized gain on available for sale securities $ 5 $ 185 Net securities gains, available for sale Income tax effect (1 ) (62 ) Income tax provision Total reclassifications for the period $ 4 $ 123 Net unrecognized pension costs $ (84 ) $ (84 ) Salaries and employee benefits Income tax effect 17 28 Income tax provision Total reclassifications for the period $ (67 ) $ (56 )

Per Share Data (Tables)

Per Share Data (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Schedule of weighted average common shares (denominator) used in the basic and dilutive earnings per share computation	The following table sets forth the composition of the weighted average common shares (denominator) used in the basic and dilutive earnings per share computation. Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Weighted average common shares issued 5,010,082 5,007,747 5,009,806 5,007,503 Weighted average treasury stock shares (320,150 ) (296,415 ) (320,150 ) (284,500 ) Weighted average common shares outstanding - basic 4,689,932 4,711,332 4,689,656 4,723,003 Dilutive effect of outstanding stock options 13,407 — — — Weighted average common shares outstanding - diluted 4,703,339 4,711,332 4,689,656 4,723,003

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Schedule of amortized cost, gross unrealized gains and losses, and fair values of investment securities	The amortized cost, gross unrealized gains and losses, and fair values of our investment securities portfolio at June 30, 2018 and December 31, 2017 are as follows: June 30, 2018 Gross Gross Amortized Unrealized Unrealized Fair (In Thousands) Cost Gains Losses Value Available for sale (AFS): Mortgage-backed securities $ 5,702 $ 34 $ (220 ) $ 5,516 State and political securities 65,635 119 (722 ) 65,032 Other debt securities 50,143 12 (1,827 ) 48,328 Total debt securities $ 121,480 $ 165 $ (2,769 ) $ 118,876 Investment equity securities: Financial institution equity securities $ 487 $ 730 $ — $ 1,217 Other equity securities 1,300 — (79 ) 1,221 Investment equity securities $ 1,787 $ 730 $ (79 ) $ 2,438 Trading: Financial institution equity securities $ — $ — $ — $ — Other equity securities 252 5 (14 ) 243 Trading investment equity securities $ 252 $ 5 $ (14 ) $ 243 December 31, 2017 Gross Gross Amortized Unrealized Unrealized Fair (In Thousands) Cost Gains Losses Value Available for sale (AFS): Mortgage-backed securities $ 4,273 $ 51 $ (111 ) $ 4,213 State and political securities 56,295 411 (198 ) 56,508 Other debt securities 48,806 180 (1,080 ) 47,906 Total debt securities $ 109,374 $ 642 $ (1,389 ) $ 108,627 Investment equity securities: Financial institution equity securities $ 537 $ 728 $ — $ 1,265 Other equity securities 1,300 — (49 ) 1,251 Investment equity securities $ 1,837 $ 728 $ (49 ) $ 2,516 Trading: Financial institution equity securities $ 20 $ — $ — $ 20 Other equity securities 192 2 (24 ) 170 Trading investment equity securities $ 212 $ 2 $ (24 ) $ 190
Schedule of amortized cost, gross unrealized gains and losses, and fair values of investment securities	The amortized cost, gross unrealized gains and losses, and fair values of our investment securities portfolio at June 30, 2018 and December 31, 2017 are as follows: June 30, 2018 Gross Gross Amortized Unrealized Unrealized Fair (In Thousands) Cost Gains Losses Value Available for sale (AFS): Mortgage-backed securities $ 5,702 $ 34 $ (220 ) $ 5,516 State and political securities 65,635 119 (722 ) 65,032 Other debt securities 50,143 12 (1,827 ) 48,328 Total debt securities $ 121,480 $ 165 $ (2,769 ) $ 118,876 Investment equity securities: Financial institution equity securities $ 487 $ 730 $ — $ 1,217 Other equity securities 1,300 — (79 ) 1,221 Investment equity securities $ 1,787 $ 730 $ (79 ) $ 2,438 Trading: Financial institution equity securities $ — $ — $ — $ — Other equity securities 252 5 (14 ) 243 Trading investment equity securities $ 252 $ 5 $ (14 ) $ 243 December 31, 2017 Gross Gross Amortized Unrealized Unrealized Fair (In Thousands) Cost Gains Losses Value Available for sale (AFS): Mortgage-backed securities $ 4,273 $ 51 $ (111 ) $ 4,213 State and political securities 56,295 411 (198 ) 56,508 Other debt securities 48,806 180 (1,080 ) 47,906 Total debt securities $ 109,374 $ 642 $ (1,389 ) $ 108,627 Investment equity securities: Financial institution equity securities $ 537 $ 728 $ — $ 1,265 Other equity securities 1,300 — (49 ) 1,251 Investment equity securities $ 1,837 $ 728 $ (49 ) $ 2,516 Trading: Financial institution equity securities $ 20 $ — $ — $ 20 Other equity securities 192 2 (24 ) 170 Trading investment equity securities $ 212 $ 2 $ (24 ) $ 190
Schedule of gross unrealized losses and fair value	The following tables show the Company’s gross unrealized losses and fair value, aggregated by investment category and length of time, that the individual debt securities have been in a continuous unrealized loss position, at June 30, 2018 and December 31, 2017 . June 30, 2018 Less than Twelve Months Twelve Months or Greater Total Gross Gross Gross Fair Unrealized Fair Unrealized Fair Unrealized (In Thousands) Value Losses Value Losses Value Losses Available for sale (AFS): Mortgage-backed securities $ 2,750 $ (56 ) $ 2,181 $ (164 ) $ 4,931 $ (220 ) State and political securities 35,049 (544 ) 5,180 (178 ) 40,229 (722 ) Other debt securities 17,590 (396 ) 27,892 (1,431 ) 45,482 (1,827 ) Total debt securities $ 55,389 $ (996 ) $ 35,253 $ (1,773 ) $ 90,642 $ (2,769 ) December 31, 2017 Less than Twelve Months Twelve Months or Greater Total Gross Gross Gross Fair Unrealized Fair Unrealized Fair Unrealized (In Thousands) Value Losses Value Losses Value Losses Available for sale (AFS): Mortgage-backed securities $ 981 $ (12 ) $ 2,276 $ (99 ) $ 3,257 $ (111 ) State and political securities 15,691 (104 ) 3,018 (94 ) 18,709 (198 ) Other debt securities 7,512 (148 ) 28,517 (932 ) 36,029 (1,080 ) Total debt securities $ 24,184 $ (264 ) $ 33,811 $ (1,125 ) $ 57,995 $ (1,389 ) Other equity securities $ 1,251 $ (49 ) $ — $ — $ 1,251 $ (49 )
Schedule of amortized cost and fair value of debt securities by contractual maturity	The amortized cost and fair value of debt securities at June 30, 2018 , by contractual maturity, are shown below. Expected maturities may differ from contractual maturities since borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. (In Thousands) Amortized Cost Fair Value Due in one year or less $ 6,665 $ 6,663 Due after one year to five years 50,070 49,350 Due after five years to ten years 53,355 51,619 Due after ten years 11,390 11,244 Total $ 121,480 $ 118,876
Schedule of gross realized gains and losses	The following table represents gross realized gains and losses within the available for sale portfolio: Three Months Ended June 30, Six Months Ended June 30, (In Thousands) 2018 2017 2018 2017 Available for sale (AFS): Gross realized gains: Mortgage-backed securities $ 5 $ 24 $ 5 $ 69 State and political securities 19 15 19 29 Total gross realized gains $ 24 $ 39 $ 24 $ 98 Gross realized losses: State and political securities $ — $ — $ 9 $ — Other debt securities 10 51 10 51 Total gross realized losses $ 10 $ 51 $ 19 $ 51 Investment equity securities: Gross realized gains: Financial institution equity securities $ — $ — $ — $ 288 Gross realized losses: Other equity securities $ — $ — $ — $ 150

Loans (Tables)

Loans (Tables)	6 Months Ended
	Jun. 30, 2018
Loans and Leases Receivable Disclosure [Abstract]
Schedule of related aging categories of loans by segment	The following table presents the related aging categories of loans, by segment, as of June 30, 2018 and December 31, 2017 : June 30, 2018 Past Due Past Due 90 30 To 89 Days Or More Non- (In Thousands) Current Days & Still Accruing Accrual Total Commercial, financial, and agricultural $ 183,476 $ 64 $ 59 $ 136 $ 183,735 Real estate mortgage: Residential 609,415 3,972 281 1,918 615,586 Commercial 350,108 1,224 99 4,600 356,031 Construction 35,879 85 3 — 35,967 Consumer automobile loans 112,982 369 — 10 113,361 Other consumer installment loans 25,271 453 21 5 25,750 1,317,131 $ 6,167 $ 463 $ 6,669 1,330,430 Net deferred loan fees and discounts 643 643 Allowance for loan losses (13,034 ) (13,034 ) Loans, net $ 1,304,740 $ 1,318,039 December 31, 2017 Past Due Past Due 90 30 To 89 Days Or More Non- (In Thousands) Current Days & Still Accruing Accrual Total Commercial, financial, and agricultural $ 178,022 $ 663 $ 86 $ 114 $ 178,885 Real estate mortgage: Residential 588,278 6,853 318 1,628 597,077 Commercial 325,148 1,823 80 4,968 332,019 Construction 31,547 116 20 — 31,683 Consumer automobile loans 79,595 87 — 32 79,714 Other consumer installment loans 26,740 202 5 17 26,964 1,229,330 $ 9,744 $ 509 $ 6,759 1,246,342 Net deferred loan fees and discounts 272 272 Allowance for loan losses (12,858 ) (12,858 ) Loans, net $ 1,216,744 $ 1,233,756
Schedule of interest income if interest had been recorded based on the original loan agreement terms and rate of interest for non-accrual loans and interest income recognized on a cash basis for non-accrual loans	The following table presents interest income the Banks would have recorded if interest had been recorded based on the original loan agreement terms and rate of interest for non-accrual loans and interest income recognized on a cash basis for non-accrual loans for the three and six months ended June 30, 2018 and 2017 : Three Months Ended June 30, 2018 2017 (In Thousands) Interest Income That Would Have Been Recorded Based on Original Term and Rate Interest Income Recorded on a Cash Basis Interest Income That Would Have Been Recorded Based on Original Term and Rate Interest Income Recorded on a Cash Basis Commercial, financial, and agricultural $ 3 $ 1 $ 11 $ 6 Real estate mortgage: Residential 37 23 51 32 Commercial 77 22 114 9 Construction — — — — Consumer automobile loans — — — — Other consumer installment loans 1 1 1 — $ 118 $ 47 $ 177 $ 47 Six Months Ended June 30, 2018 2017 (In Thousands) Interest Income That Would Have Been Recorded Based on Original Term and Rate Interest Income Recorded on a Cash Basis Interest Income That Would Have Been Recorded Based on Original Term and Rate Interest Income Recorded on a Cash Basis Commercial, financial, and agricultural $ 4 $ 1 $ 13 $ 6 Real estate mortgage: Residential 68 34 94 51 Commercial 138 39 232 19 Construction — — — — Consumer automobile loans — — — — Other consumer installment loans 1 1 2 1 $ 211 $ 75 $ 341 $ 77
Schedule of recorded investment, unpaid principal balance, and related allowance of impaired loans by segment	The following table presents the recorded investment, unpaid principal balance, and related allowance of impaired loans by segment as of June 30, 2018 and December 31, 2017 : June 30, 2018 Recorded Unpaid Principal Related (In Thousands) Investment Balance Allowance With no related allowance recorded: Commercial, financial, and agricultural $ 1,028 $ 1,028 $ — Real estate mortgage: Residential 1,902 1,902 — Commercial 1,507 1,507 — 4,437 4,437 — With an allowance recorded: Commercial, financial, and agricultural 177 177 73 Real estate mortgage: Residential 2,095 2,144 228 Commercial 7,265 7,265 1,563 9,537 9,586 1,864 Total: Commercial, financial, and agricultural 1,205 1,205 73 Real estate mortgage: Residential 3,997 4,046 228 Commercial 8,772 8,772 1,563 $ 13,974 $ 14,023 $ 1,864 December 31, 2017 Recorded Unpaid Principal Related (In Thousands) Investment Balance Allowance With no related allowance recorded: Commercial, financial, and agricultural $ 1,033 $ 1,033 $ — Real estate mortgage: Residential 1,428 1,428 — Commercial 1,465 1,465 — 3,926 3,926 — With an allowance recorded: Commercial, financial, and agricultural 235 235 96 Real estate mortgage: Residential 2,304 2,353 367 Commercial 7,981 8,031 1,721 10,520 10,619 2,184 Total: Commercial, financial, and agricultural 1,268 1,268 96 Real estate mortgage: Residential 3,732 3,781 367 Commercial 9,446 9,496 1,721 $ 14,446 $ 14,545 $ 2,184
Schedule of average recorded investment in impaired loans and related interest income recognized	The following table presents the average recorded investment in impaired loans and related interest income recognized for the three and six months ended for June 30, 2018 and 2017 : Three Months Ended June 30, 2018 2017 (In Thousands) Average Investment in Impaired Loans Interest Income Recognized on an Accrual Basis on Impaired Loans Interest Income Recognized on a Cash Basis on Impaired Loans Average Investment in Impaired Loans Interest Income Recognized on an Accrual Basis on Impaired Loans Interest Income Recognized on a Cash Basis on Impaired Loans Commercial, financial, and agricultural $ 1,227 $ 17 $ 1 $ 394 $ 3 $ 6 Real estate mortgage: Residential 4,255 29 23 3,199 14 30 Commercial 9,170 36 22 12,885 52 9 Construction — — — — — — Consumer automobile — — — — — — Other consumer installment loans 1 — 1 10 — 2 $ 14,652 $ 82 $ 47 $ 16,488 $ 69 $ 47 Six Months Ended June 30, 2018 2017 (In Thousands) Average Investment in Impaired Loans Interest Income Recognized on an Accrual Basis on Impaired Loans Interest Income Recognized on a Cash Basis on Impaired Loans Average Investment in Impaired Loans Interest Income Recognized on an Accrual Basis on Impaired Loans Interest Income Recognized on a Cash Basis on Impaired Loans Commercial, financial, and agricultural $ 1,241 $ 34 $ 1 $ 324 $ 7 $ 6 Real estate mortgage: Residential 4,080 67 34 3,212 36 46 Commercial 9,211 94 39 12,635 85 19 Construction — — — — — — Consumer automobile — — — — — — Other consumer installment loans 1 — 1 8 — 2 $ 14,532 $ 195 $ 75 $ 16,179 $ 128 $ 73
Schedule of loan modifications that are considered TDRs	Loan modifications that are considered TDR's completed during the three and six months ended June 30, 2018 were as follows: Three Months Ended June 30, 2018 2017 (In Thousands, Except Number of Contracts) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Real estate mortgage: Residential 1 $ 67 $ 67 — $ — $ — Six Months Ended June 30, 2018 2017 (In Thousands, Except Number of Contracts) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Real estate mortgage: Residential 3 $ 169 $ 169 — $ — $ — Commercial 1 106 106 — — — 4 $ 275 $ 275 — $ — $ —
Schedule of credit quality categories	The following table presents the credit quality categories identified above as of June 30, 2018 and December 31, 2017 : June 30, 2018 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment loans (In Thousands) Residential Commercial Construction Totals Pass $ 181,796 $ 613,050 $ 337,974 $ 35,967 $ 113,361 $ 25,750 $ 1,307,898 Special Mention 657 393 7,074 — — — 8,124 Substandard 1,282 2,143 10,983 — — — 14,408 $ 183,735 $ 615,586 $ 356,031 $ 35,967 $ 113,361 $ 25,750 $ 1,330,430 December 31, 2017 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment loans (In Thousands) Residential Commercial Construction Totals Pass $ 175,603 $ 593,828 $ 311,209 $ 31,535 $ 79,714 $ 26,964 $ 1,218,853 Special Mention 738 1,043 7,337 — — — 9,118 Substandard 2,544 2,206 13,473 148 — — 18,371 $ 178,885 $ 597,077 $ 332,019 $ 31,683 $ 79,714 $ 26,964 $ 1,246,342
Schedule of activity in the allowance	Activity in the allowance is presented for the three and six months ended June 30, 2018 and 2017 : Three Months Ended June 30, 2018 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment (In Thousands) Residential Commercial Construction Unallocated Totals Beginning Balance $ 1,372 $ 5,656 $ 4,003 $ 156 $ 1,016 $ 305 $ 328 $ 12,836 Charge-offs (3 ) (91 ) — — (22 ) (47 ) — (163 ) Recoveries 8 1 — 3 2 12 — 26 Provision (322 ) 17 (189 ) (41 ) 73 47 750 335 Ending Balance $ 1,055 $ 5,583 $ 3,814 $ 118 $ 1,069 $ 317 $ 1,078 $ 13,034 Three Months Ended June 30, 2017 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment (In Thousands) Residential Commercial Construction Unallocated Totals Beginning Balance $ 1,441 $ 5,571 $ 4,466 $ 187 $ 202 $ 346 $ 692 $ 12,905 Charge-offs 200 (287 ) — — (15 ) (39 ) — (141 ) Recoveries 105 5 1 2 — 17 — 130 Provision (15 ) 48 (740 ) (17 ) 162 106 671 215 Ending Balance $ 1,731 $ 5,337 $ 3,727 $ 172 $ 349 $ 430 $ 1,363 $ 13,109 Six Months Ended June 30, 2018 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment (In Thousands) Residential Commercial Construction Unallocated Totals Beginning Balance $ 1,177 $ 5,679 $ 4,277 $ 155 $ 804 $ 271 $ 495 $ 12,858 Charge-offs (36 ) (142 ) (55 ) — (52 ) (118 ) — (403 ) Recoveries 15 25 — 5 3 36 — 84 Provision (101 ) 21 (408 ) (42 ) 314 128 583 495 Ending Balance $ 1,055 $ 5,583 $ 3,814 $ 118 $ 1,069 $ 317 $ 1,078 $ 13,034 Six Months Ended June 30, 2017 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer automobile Other consumer installment (In Thousands) Residential Commercial Construction Unallocated Totals Beginning Balance $ 1,554 $ 5,383 $ 4,975 $ 178 $ 143 $ 273 $ 390 $ 12,896 Charge-offs (13 ) (385 ) — — (18 ) (113 ) — (529 ) Recoveries 111 35 1 5 — 45 — 197 Provision 79 304 (1,249 ) (11 ) 224 225 973 545 Ending Balance $ 1,731 $ 5,337 $ 3,727 $ 172 $ 349 $ 430 $ 1,363 $ 13,109
Schedule of concentration of loan	The Company has a concentration of the following to gross loans at June 30, 2018 and 2017 : June 30, 2018 2017 Owners of residential rental properties 14.90 % 15.64 % Owners of commercial rental properties 13.30 % 14.56 %
Schedule of allowance for loan losses and the recorded investment in loans by portfolio segment based on impairment method	The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment based on impairment method as of June 30, 2018 and December 31, 2017 : June 30, 2018 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer Automobile Other consumer installment Unallocated (In Thousands) Residential Commercial Construction Totals Allowance for Loan Losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 73 $ 228 $ 1,563 $ — $ — $ — $ — $ 1,864 Collectively evaluated for impairment 982 5,355 2,251 118 1,069 317 1,078 11,170 Total ending allowance balance $ 1,055 $ 5,583 $ 3,814 $ 118 $ 1,069 $ 317 $ 1,078 $ 13,034 Loans: Individually evaluated for impairment $ 1,205 $ 3,997 $ 8,772 $ — $ — $ — $ 13,974 Collectively evaluated for impairment 182,530 611,589 347,259 35,967 113,361 25,750 1,316,456 Total ending loans balance $ 183,735 $ 615,586 $ 356,031 $ 35,967 $ 113,361 $ 25,750 $ 1,330,430 December 31, 2017 Commercial, Financial, and Agricultural Real Estate Mortgages Consumer Automobile Other consumer installment Unallocated (In Thousands) Residential Commercial Construction Totals Allowance for Loan Losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 96 $ 367 $ 1,721 $ — $ — $ — $ — $ 2,184 Collectively evaluated for impairment 1,081 5,312 2,556 155 804 271 495 10,674 Total ending allowance balance $ 1,177 $ 5,679 $ 4,277 $ 155 $ 804 $ 271 $ 495 $ 12,858 Loans: Individually evaluated for impairment $ 1,268 $ 3,732 $ 9,446 $ — $ — $ — $ 14,446 Collectively evaluated for impairment 177,617 593,345 322,573 31,683 79,714 26,964 1,231,896 Total ending loans balance $ 178,885 $ 597,077 $ 332,019 $ 31,683 $ 79,714 $ 26,964 $ 1,246,342

Net Periodic Benefit Cost-Def28

Net Periodic Benefit Cost-Defined Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2018
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Schedule of components of the net periodic benefit/cost of the domestic non-contributory defined benefit plan	The following sets forth the components of the net periodic benefit/cost of the domestic non-contributory defined benefit plan for the three and six months ended June 30, 2018 and 2017 , respectively: Three Months Ended June 30, Six Months Ended June 30, (In Thousands) 2018 2017 2018 2017 Service cost $ — $ 42 $ — $ 83 Interest cost 177 189 353 378 Expected return on plan assets (274 ) (263 ) (548 ) (525 ) Amortization of net loss 42 40 84 84 Net periodic (benefit) cost $ (55 ) $ 8 $ (111 ) $ 20

Off Balance Sheet Risk (Tables)

Off Balance Sheet Risk (Tables)	6 Months Ended
	Jun. 30, 2018
Off Balance Sheet Risk
Schedule of Financial instruments whose contract amounts represent credit risk	Financial instruments whose contract amounts represent credit risk are as follows at June 30, 2018 and December 31, 2017 : (In Thousands) June 30, 2018 December 31, 2017 Commitments to extend credit $ 281,934 $ 264,982 Standby letters of credit 40,706 10,406 Credit exposure from the sale of assets with recourse 5,497 4,893 $ 328,137 $ 280,281

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Schedule of assets reported on the balance sheet at their fair value on a recurring basis	The following table presents the assets reported on the Consolidated Balance Sheet at their fair value on a recurring basis as of June 30, 2018 and December 31, 2017 , by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. June 30, 2018 (In Thousands) Level I Level II Level III Total Assets measured on a recurring basis: Investment securities, available for sale: Mortgage-backed securities $ — $ 5,516 $ — $ 5,516 State and political securities — 65,032 — 65,032 Other debt securities — 48,328 — 48,328 Investment equity securities: Financial institution equity securities 1,217 — — 1,217 Other equity securities 1,221 — — 1,221 Investment securities, trading: Other equity securities 243 — — 243 December 31, 2017 (In Thousands) Level I Level II Level III Total Assets measured on a recurring basis: Investment securities, available for sale: Mortgage-backed securities $ — $ 4,213 $ — $ 4,213 State and political securities — 56,508 — 56,508 Other debt securities — 47,906 — 47,906 Financial institution equity securities 1,265 — — 1,265 Other equity securities 1,251 — — 1,251 Investment securities, trading: Other equity securities 190 — — 190
Schedule of assets reported on the consolidated balance sheet at their fair value on a non-recurring basis	The following table presents the assets reported on the Consolidated Balance Sheet at their fair value on a non-recurring basis as of June 30, 2018 and December 31, 2017 , by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. June 30, 2018 (In Thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ — $ — $ 12,110 $ 12,110 Other real estate owned — — 485 485 December 31, 2017 (In Thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ — $ — $ 12,262 $ 12,262 Other real estate owned — — 143 143
Schedule of listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques	The following tables present a listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques as of June 30, 2018 and December 31, 2017 : June 30, 2018 Quantitative Information About Level III Fair Value Measurements (In Thousands) Fair Value Valuation Technique(s) Unobservable Inputs Range Weighted Average Impaired loans $ 6,481 Discounted cash flow Temporary reduction in payment amount 0 to (70)% (13)% 5,629 Appraisal of collateral (1) Appraisal adjustments (1) 0 to (20)% (17)% Other real estate owned $ 485 Appraisal of collateral (1) Appraisal adjustments (1) (20)% (20)% (1) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. December 31, 2017 Quantitative Information About Level III Fair Value Measurements (In Thousands) Fair Value Valuation Technique(s) Unobservable Inputs Range Weighted Average Impaired loans $ 6,583 Discounted cash flow Temporary reduction in payment amount 3 to (70)% (4)% 5,679 Appraisal of collateral (1) Appraisal adjustments (1) 0 to (20)% (17)% Other real estate owned $ 143 Appraisal of collateral (1) Appraisal adjustments (1) (20)% (20)% (1) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses.

Fair Value of Financial Instr31

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Schedule of fair value of financial instruments	The fair values of the Company’s financial instruments not recorded at fair value on a recurring or nonrecurring basis are as follows at June 30, 2018 and December 31, 2017 : Carrying Fair Fair Value Measurements at June 30, 2018 (In Thousands) Value Value Level I Level II Level III Financial assets: Cash and cash equivalents (1) $ 56,007 $ 56,007 $ 56,007 $ — $ — Restricted investment in bank stock 16,716 16,716 — 16,716 — Loans held for sale (1) 2,118 2,118 2,118 — — Loans, net 1,318,039 1,318,938 — — 1,318,938 Bank-owned life insurance (1) 28,315 28,315 28,315 — — Accrued interest receivable (1) 4,618 4,618 4,618 — — Financial liabilities: Interest-bearing deposits $ 879,825 $ 853,441 $ 604,667 $ — $ 248,774 Noninterest-bearing deposits (1) 311,194 311,194 311,194 — — Short-term borrowings (1) 134,637 134,637 134,637 — — Long-term borrowings 123,970 122,292 — — 122,292 Accrued interest payable (1) 896 896 896 — — (1) The financial instrument is carried at cost at June 30, 2018 , which approximate the fair value of the instruments Carrying Fair Fair Value Measurements at December 31, 2017 (In Thousands) Value Value Level I Level II Level III Financial assets: Cash and cash equivalents $ 27,243 $ 27,243 $ 27,243 $ — $ — Investment securities: Available for sale 111,143 111,143 2,516 108,627 — Trading 190 190 190 — — Restricted investment in bank stock 13,332 13,332 — 13,332 — Loans held for sale 1,196 1,196 1,196 — — Loans, net 1,233,756 1,264,584 — — 1,264,584 Bank-owned life insurance 27,982 27,982 27,982 — — Accrued interest receivable 4,321 4,321 4,321 — — Financial liabilities: Interest-bearing deposits $ 843,004 $ 838,441 $ 611,187 $ — $ 227,254 Noninterest-bearing deposits 303,316 303,316 303,316 — — Short-term borrowings 100,748 100,748 100,748 — — Long-term borrowings 70,970 70,280 — — 70,280 Accrued interest payable 502 502 502 — —

Stock Options (Tables)

Stock Options (Tables)	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity	A summary of stock option activity is presented below: June 30, 2018 June 30, 2017 Shares Weighted Average Exercise Price Shares Weighted Average Exercise Price Outstanding, beginning of year 93,500 $ 43.59 26,500 $ 42.03 Granted 25,000 45.11 70,000 44.21 Exercised — — — — Forfeited (3,500 ) 42.96 — — Expired — — — — Outstanding, end of period 115,000 $ 43.94 96,500 $ 43.61 Exercisable, end of period — $ — — $ — Stock Options Granted Date Shares Forfeited Outstanding Strike Price Vesting Period Expiration January 5, 2018 12,500 — 12,500 $ 45.11 3 years 10 years January 5, 2018 12,500 — 12,500 45.11 5 years 10 years March 24, 2017 46,250 (4,500 ) 41,750 44.21 3 years 10 years March 24, 2017 23,750 — 23,750 44.21 5 years 10 years August 27, 2015 38,750 (14,250 ) 24,500 42.03 5 years 10 years

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Gross Interchange and Debit Card Transaction Fees Net Network Costs	The below table compares gross interchange and debit card transaction fees net network costs for 2018 and 2017: Three Months Ended June 30, Six months ended June 30, (In Thousands) 2018 2017 2018 2017 Debit card transaction fees $ 541 $ 501 $ 1,060 $ 935 Other processing service fees 67 63 128 122 Gross interchange and card based transaction fees 608 564 1,188 1,057 Network costs 235 224 482 446 Net interchange and card based transaction fees $ 373 $ 340 $ 706 $ 611

Basis of Presentation (Details)

Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Jun. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income tax expense related to remeasurement of deferred tax balance	$ 2,700
Increase to retained earnings	63,364	$ 66,181
Accounting Standards Update 2016-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to accumulated other comprehensive income	537
Increase to retained earnings	$ 537

Accumulated Other Comprehensi35

Accumulated Other Comprehensive Loss - Schedule of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Increase (Decrease} In Accumulated Other Comprehensive Income (Loss), Net Of Tax1 [Roll Forward]
Beginning balance			$ 138,192
Reclassification from adoption of 2016-01			0
Other comprehensive (loss) gain before reclassifications	$ (307)	$ 257	(1,462)	$ 746
Amounts reclassified from accumulated other comprehensive loss	23	38	63	(67)
Total other comprehensive (loss) income	(284)	295	(1,399)	679
Ending balance	139,134		139,134
Net Unrealized Gain (Loss) on Available for Sale Securities
Increase (Decrease} In Accumulated Other Comprehensive Income (Loss), Net Of Tax1 [Roll Forward]
Beginning balance	(1,740)	(281)	(54)	(639)
Other comprehensive (loss) gain before reclassifications	(307)	257	(1,462)	746
Amounts reclassified from accumulated other comprehensive loss	(10)	8	(4)	(123)
Total other comprehensive (loss) income	(317)	265	(1,466)	623
Ending balance	(2,057)	(16)	(2,057)	(16)
Defined Benefit Plan
Increase (Decrease} In Accumulated Other Comprehensive Income (Loss), Net Of Tax1 [Roll Forward]
Beginning balance	(4,886)	(4,263)	(4,920)	(4,289)
Other comprehensive (loss) gain before reclassifications	0	0	0	0
Amounts reclassified from accumulated other comprehensive loss	33	30	67	56
Total other comprehensive (loss) income	33	30	67	56
Ending balance	(4,853)	(4,233)	(4,853)	(4,233)
AOCI Attributable to Parent
Increase (Decrease} In Accumulated Other Comprehensive Income (Loss), Net Of Tax1 [Roll Forward]
Beginning balance	(6,626)	(4,544)	(4,974)	(4,928)
Reclassification from adoption of 2016-01			(537)
Total other comprehensive (loss) income			(1,399)	679
Ending balance	$ (6,910)	$ (4,249)	(6,910)	(4,249)
Accounting Standards Update 2016-01
Increase (Decrease} In Accumulated Other Comprehensive Income (Loss), Net Of Tax1 [Roll Forward]
Reclassification from adoption of 2016-01			(537)	0
Accounting Standards Update 2016-01 | Net Unrealized Gain (Loss) on Available for Sale Securities
Increase (Decrease} In Accumulated Other Comprehensive Income (Loss), Net Of Tax1 [Roll Forward]
Reclassification from adoption of 2016-01			(537)	0
Accounting Standards Update 2016-01 | Defined Benefit Plan
Increase (Decrease} In Accumulated Other Comprehensive Income (Loss), Net Of Tax1 [Roll Forward]
Reclassification from adoption of 2016-01			$ 0	$ 0

Accumulated Other Comprehensi36

Accumulated Other Comprehensive Loss - Schedule of Reclassifications out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Reclassifications out of accumulated other comprehensive income
Net securities (losses) gains, available for sale	$ 14	$ (12)	$ 5	$ 185
Income tax provision	(733)	(1,223)	(1,322)	(2,209)
Salaries and employee benefits	(4,919)	(4,608)	(9,967)	(9,378)
Consolidated net income			6,688	5,772
Amount Reclassified from Accumulated Other Comprehensive Loss | Net Unrealized Gain (Loss) on Available for Sale Securities
Reclassifications out of accumulated other comprehensive income
Net securities (losses) gains, available for sale	14	(12)	5
Income tax provision	(4)	4	(1)	(62)
Consolidated net income	10	(8)	4	123
Amount Reclassified from Accumulated Other Comprehensive Loss | Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent
Reclassifications out of accumulated other comprehensive income
Income tax provision	9	10	17	28
Salaries and employee benefits	(42)	(40)	(84)	(84)
Consolidated net income	$ (33)	$ (30)	$ (67)	$ (56)

Recent Accounting Pronounceme37

Recent Accounting Pronouncements Recent Accounting Pronouncements (Details)	6 Months Ended
	Jun. 30, 2018
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Percent change in assets and liabilities (less than)	1.00%

Per Share Data - Narrative (Det

Per Share Data - Narrative (Details) - $ / shares	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016	Aug. 27, 2015
Earnings Per Share [Abstract]
Convertible securities which would affect denominator in calculating basic and dilutive earnings per share (in shares)	0
Options, outstanding (in shares)	115,000	93,500	96,500	26,500	24,500
Outstanding, weighted average exercise price (in dollars per share)	$ 43.94	$ 43.59	$ 43.61	$ 42.03
Share price (in dollars per share)	$ 43.37		$ 43.26

Per Share Data - Composition of

Per Share Data - Composition of Weighted Average Common Shares Used in Earnings per Share Computation (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Weighted average common shares issued (in shares)	5,010,082	5,007,747	5,009,806	5,007,503
Weighted average treasury stock shares (in shares)	(320,150)	(296,415)	(320,150)	(284,500)
Weighted average common shares outstanding - basic (in shares)	4,689,932	4,711,332	4,689,656	4,723,003
Dilutive effect of outstanding stock options (in shares)	13,407	0	0	0
Weighted average common shares outstanding - diluted (in shares)	4,703,339	4,711,332	4,689,656	4,723,003

Investment Securities - Amortiz

Investment Securities - Amortized Cost and Fair Values of Investment Securities Available for Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available for sale (AFS)
Amortized Cost	$ 121,480
Fair Value	118,876	$ 108,627
Investment equity securities
Fair Value	2,438	2,516
Mortgage-backed securities
Available for sale (AFS)
Amortized Cost	5,702	4,273
Gross Unrealized Gains	34	51
Gross Unrealized Losses	(220)	(111)
Fair Value	5,516	4,213
State and political securities
Available for sale (AFS)
Amortized Cost	65,635	56,295
Gross Unrealized Gains	119	411
Gross Unrealized Losses	(722)	(198)
Fair Value	65,032	56,508
Other debt securities
Available for sale (AFS)
Amortized Cost	50,143	48,806
Gross Unrealized Gains	12	180
Gross Unrealized Losses	(1,827)	(1,080)
Fair Value	48,328	47,906
Debt securities
Available for sale (AFS)
Amortized Cost	121,480	109,374
Gross Unrealized Gains	165	642
Gross Unrealized Losses	(2,769)	(1,389)
Fair Value	118,876	108,627
Financial institution equity securities
Investment equity securities
Amortized Cost	487	537
Gross Unrealized Gains	730	728
Gross Unrealized Losses	0	0
Fair Value	1,217	1,265
Trading
Amortized Cost	0	20
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	0	20
Other equity securities
Investment equity securities
Amortized Cost	1,300	1,300
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(79)	(49)
Fair Value	1,221	1,251
Trading
Amortized Cost	252	192
Gross Unrealized Gains	5	2
Gross Unrealized Losses	(14)	(24)
Fair Value	243	170
Investment equity securities
Investment equity securities
Amortized Cost	1,787	1,837
Gross Unrealized Gains	730	728
Gross Unrealized Losses	(79)	(49)
Fair Value	2,438	2,516
Trading investment equity securities
Trading
Amortized Cost	252	212
Gross Unrealized Gains	5	2
Gross Unrealized Losses	(14)	(24)
Fair Value	$ 243	$ 190

Investment Securities - Narrati

Investment Securities - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)security	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)security	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Investments, Debt and Equity Securities [Abstract]
Net securities (losses) gains, trading	$ (5,000)	$ 0	$ (2,000)	$ 2,000
Available for sale securities in unrealized loss, positions number of positions, less than twelve months | security	66		66
Available for sale securities in unrealized loss, positions number of positions, greater than twelve months | security	30		30
Proceeds from sales of available for sale securities	$ 1,120,000	6,478,000	$ 4,483,000	9,130,000
Impairment charges	0	$ 0	0	$ 0
Investment securities, carrying value	$ 72,056,000		$ 72,056,000		$ 95,199,000

Investment Securities - Gross U

Investment Securities - Gross Unrealized Losses and Fair Value by Investment Category (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Mortgage-backed securities
Investment securities
Fair value, less than twelve months	$ 2,750	$ 981
Gross unrealized losses, less than twelve months	(56)	(12)
Fair value, twelve months or greater	2,181	2,276
Gross unrealized losses, twelve months or greater	(164)	(99)
Fair value, total	4,931	3,257
Gross unrealized losses, total	(220)	(111)
State and political securities
Investment securities
Fair value, less than twelve months	35,049	15,691
Gross unrealized losses, less than twelve months	(544)	(104)
Fair value, twelve months or greater	5,180	3,018
Gross unrealized losses, twelve months or greater	(178)	(94)
Fair value, total	40,229	18,709
Gross unrealized losses, total	(722)	(198)
Other debt securities
Investment securities
Fair value, less than twelve months	17,590	7,512
Gross unrealized losses, less than twelve months	(396)	(148)
Fair value, twelve months or greater	27,892	28,517
Gross unrealized losses, twelve months or greater	(1,431)	(932)
Fair value, total	45,482	36,029
Gross unrealized losses, total	(1,827)	(1,080)
Debt securities
Investment securities
Fair value, less than twelve months	55,389	24,184
Gross unrealized losses, less than twelve months	(996)	(264)
Fair value, twelve months or greater	35,253	33,811
Gross unrealized losses, twelve months or greater	(1,773)	(1,125)
Fair value, total	90,642	57,995
Gross unrealized losses, total	$ (2,769)	(1,389)
Other equity securities
Investment securities
Fair value, less than twelve months		1,251
Gross unrealized losses, less than twelve months		(49)
Fair value, twelve months or greater		0
Gross unrealized losses, twelve months or greater		0
Fair value, total		1,251
Gross unrealized losses, total		$ (49)

Investment Securities - Amort43

Investment Securities - Amortized Cost and Fair Value of Debt Securities (Details) $ in Thousands	Jun. 30, 2018USD ($)
Amortized Cost
Amortized Cost - Due in one year or less	$ 6,665
Amortized Cost - Due after one year to five years	50,070
Amortized Cost - Due after five years to ten years	53,355
Amortized Cost - Due after ten years	11,390
Amortized Cost	121,480
Fair Value
Fair Value - Due in one year or less	6,663
Fair Value - Due after one year to five years	49,350
Fair Value - Due after five years to ten years	51,619
Fair Value - Due after ten years	11,244
Fair Value - Total	$ 118,876

Investment Securities - Total G

Investment Securities - Total Gross Proceeds from Sales of Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Available for sale (AFS)
Available-for-sale securities, gross realized gains	$ 24	$ 39	$ 24	$ 98
Available-for-sale securities, gross realized losses	10	51	19	51
Mortgage-backed securities
Available for sale (AFS)
Available-for-sale securities, gross realized gains	5	24	5	69
State and political securities
Available for sale (AFS)
Available-for-sale securities, gross realized gains	19	15	19	29
Available-for-sale securities, gross realized losses	0	0	9	0
Other debt securities
Available for sale (AFS)
Available-for-sale securities, gross realized losses	10	51	10	51
Financial institution equity securities
Investment Equity Securities
Investment equity securities, gross realized gain	0	0	0	288
Other equity securities
Investment Equity Securities
Investment equity securities, gross realized loss	$ 0	$ 0	$ 0	$ 150

Loans - Additional Information

Loans - Additional Information (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)categorycomponentclasscontract	Jun. 30, 2017contract	Jun. 30, 2018USD ($)categorycomponentclasscontract	Jun. 30, 2017contract	Dec. 31, 2017USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable individually evaluated for impairment minimum amount			$ 100,000
Individually evaluated for impairment			$ 100,000
Payment delays limit (in days)			90 days
Impaired financing receivable commitment to lend	$ 0		$ 0
Reasonable period to classify from troubled debt restructuring non performing loans to performing loans (in months)			6 months
Number of contracts | contract			1
Loan modifications, number of contracts | contract			4	0
Recorded investment	8,830,000		$ 8,830,000		$ 9,048,000
Real estate acquired through foreclosure	485,000		485,000		422,000
Mortgage loans in process of foreclosure, amount	$ 78,000		$ 78,000		$ 378,000
Number of categories considered not criticized and rated as, Pass | category	6		6
Minimum period after which loans are considered as substandard (in days)			90 days
Number of components that represents the allowance for loan losses | component	2		2
Number of classes that groups of loans are collectively evaluated for impairment | class	2		2
Period considered for quarter moving average which used in calculating historical charge off (in months)			36 months
Real estate mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of categories in which real estate loans segmented | category			3
Real estate mortgage | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan modifications, number of contracts | contract			1	0
Real estate mortgage | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Defaulted loan, recorded investment			$ 3,750
Loan modifications, number of contracts | contract	1	0	3	0

Loans - Aging Categories of Loa

Loans - Aging Categories of Loans by Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Aging categories of loans by segment
Current	$ 1,317,131		$ 1,229,330
Past Due 30 To 89 Days	6,167		9,744
Past Due 90 Days Or More & Still Accruing	463		509
Non-Accrual	6,669		6,759
Total	1,330,430		1,246,342
Net deferred loan fees and discounts	643		272
Allowance for loan losses	(13,034)	$ (12,836)	(12,858)	$ (13,109)	$ (12,905)	$ (12,896)
Current loans, net	1,304,740		1,216,744
Loans, net	1,318,039		1,233,756
Commercial, financial, and agricultural
Aging categories of loans by segment
Current	183,476		178,022
Past Due 30 To 89 Days	64		663
Past Due 90 Days Or More & Still Accruing	59		86
Non-Accrual	136		114
Total	183,735		178,885
Allowance for loan losses	(1,055)	(1,372)	(1,177)	(1,731)	(1,441)	(1,554)
Real estate mortgage | Residential
Aging categories of loans by segment
Current	609,415		588,278
Past Due 30 To 89 Days	3,972		6,853
Past Due 90 Days Or More & Still Accruing	281		318
Non-Accrual	1,918		1,628
Total	615,586		597,077
Allowance for loan losses	(5,583)	(5,656)	(5,679)	(5,337)	(5,571)	(5,383)
Real estate mortgage | Commercial
Aging categories of loans by segment
Current	350,108		325,148
Past Due 30 To 89 Days	1,224		1,823
Past Due 90 Days Or More & Still Accruing	99		80
Non-Accrual	4,600		4,968
Total	356,031		332,019
Allowance for loan losses	(3,814)	(4,003)	(4,277)	(3,727)	(4,466)	(4,975)
Real estate mortgage | Construction
Aging categories of loans by segment
Current	35,879		31,547
Past Due 30 To 89 Days	85		116
Past Due 90 Days Or More & Still Accruing	3		20
Non-Accrual	0		0
Total	35,967		31,683
Allowance for loan losses	(118)	(156)	(155)	(172)	(187)	(178)
Consumer automobile loans
Aging categories of loans by segment
Current	112,982		79,595
Past Due 30 To 89 Days	369		87
Past Due 90 Days Or More & Still Accruing	0		0
Non-Accrual	10		32
Total	113,361		79,714
Allowance for loan losses	(1,069)	(1,016)	(804)	(349)	(202)	(143)
Other consumer installment loans
Aging categories of loans by segment
Current	25,271		26,740
Past Due 30 To 89 Days	453		202
Past Due 90 Days Or More & Still Accruing	21		5
Non-Accrual	5		17
Total	25,750		26,964
Allowance for loan losses	$ (317)	$ (305)	$ (271)	$ (430)	$ (346)	$ (273)

Loans - Interest Income (Detail

Loans - Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	$ 118	$ 177	$ 211	$ 341
Interest Income Recorded on a Cash Basis	47	47	75	77
Commercial, financial, and agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	3	11	4	13
Interest Income Recorded on a Cash Basis	1	6	1	6
Real estate mortgage | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	37	51	68	94
Interest Income Recorded on a Cash Basis	23	32	34	51
Real estate mortgage | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	77	114	138	232
Interest Income Recorded on a Cash Basis	22	9	39	19
Real estate mortgage | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	0	0	0	0
Interest Income Recorded on a Cash Basis	0	0	0	0
Consumer automobile loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	0	0	0	0
Interest Income Recorded on a Cash Basis	0	0	0	0
Other consumer installment loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	1	1	1	2
Interest Income Recorded on a Cash Basis	$ 1	$ 0	$ 1	$ 1

Loans - Recorded Investment, Un

Loans - Recorded Investment, Unpaid Principal Balance, Related Allowance of Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	$ 14,652	$ 16,488	$ 14,532	$ 16,179
Interest Income Recognized on an Accrual Basis on Impaired Loans	82	69	195	128
Interest Income Recognized on a Cash Basis on Impaired Loans	47	47	75	73
Recorded Investment, With no related allowance recorded	4,437		4,437		$ 3,926
Recorded Investment, With an allowance recorded	9,537		9,537		10,520
Recorded Investment	13,974		13,974		14,446
Unpaid Principal Balance, With no related allowance recorded	4,437		4,437		3,926
Unpaid Principal Balance, With an allowance recorded	9,586		9,586		10,619
Unpaid Principal Balance	14,023		14,023		14,545
Related Allowance	1,864		1,864		2,184
Commercial, financial, and agricultural
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	1,227	394	1,241	324
Interest Income Recognized on an Accrual Basis on Impaired Loans	17	3	34	7
Interest Income Recognized on a Cash Basis on Impaired Loans	1	6	1	6
Recorded Investment, With no related allowance recorded	1,028		1,028		1,033
Recorded Investment, With an allowance recorded	177		177		235
Recorded Investment	1,205		1,205		1,268
Unpaid Principal Balance, With no related allowance recorded	1,028		1,028		1,033
Unpaid Principal Balance, With an allowance recorded	177		177		235
Unpaid Principal Balance	1,205		1,205		1,268
Related Allowance	73		73		96
Real estate mortgage | Residential
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	4,255	3,199	4,080	3,212
Interest Income Recognized on an Accrual Basis on Impaired Loans	29	14	67	36
Interest Income Recognized on a Cash Basis on Impaired Loans	23	30	34	46
Recorded Investment, With no related allowance recorded	1,902		1,902		1,428
Recorded Investment, With an allowance recorded	2,095		2,095		2,304
Recorded Investment	3,997		3,997		3,732
Unpaid Principal Balance, With no related allowance recorded	1,902		1,902		1,428
Unpaid Principal Balance, With an allowance recorded	2,144		2,144		2,353
Unpaid Principal Balance	4,046		4,046		3,781
Related Allowance	228		228		367
Real estate mortgage | Commercial
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	9,170	12,885	9,211	12,635
Interest Income Recognized on an Accrual Basis on Impaired Loans	36	52	94	85
Interest Income Recognized on a Cash Basis on Impaired Loans	22	9	39	19
Recorded Investment, With no related allowance recorded	1,507		1,507		1,465
Recorded Investment, With an allowance recorded	7,265		7,265		7,981
Recorded Investment	8,772		8,772		9,446
Unpaid Principal Balance, With no related allowance recorded	1,507		1,507		1,465
Unpaid Principal Balance, With an allowance recorded	7,265		7,265		8,031
Unpaid Principal Balance	8,772		8,772		9,496
Related Allowance	1,563		1,563		$ 1,721
Consumer automobile loans
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	0	0	0	0
Interest Income Recognized on an Accrual Basis on Impaired Loans	0	0	0	0
Interest Income Recognized on a Cash Basis on Impaired Loans	0	0	0	0
Other consumer installment loans
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	1	10	1	8
Interest Income Recognized on an Accrual Basis on Impaired Loans	0	0	0	0
Interest Income Recognized on a Cash Basis on Impaired Loans	$ 1	$ 2	$ 1	$ 2

Loans - Average Recorded Invest

Loans - Average Recorded Investment - Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	$ 14,652	$ 16,488	$ 14,532	$ 16,179
Interest Income Recognized on an Accrual Basis on Impaired Loans	82	69	195	128
Interest Income Recognized on a Cash Basis on Impaired Loans	47	47	75	73
Commercial, financial, and agricultural
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	1,227	394	1,241	324
Interest Income Recognized on an Accrual Basis on Impaired Loans	17	3	34	7
Interest Income Recognized on a Cash Basis on Impaired Loans	1	6	1	6
Real estate mortgage | Residential
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	4,255	3,199	4,080	3,212
Interest Income Recognized on an Accrual Basis on Impaired Loans	29	14	67	36
Interest Income Recognized on a Cash Basis on Impaired Loans	23	30	34	46
Real estate mortgage | Commercial
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	9,170	12,885	9,211	12,635
Interest Income Recognized on an Accrual Basis on Impaired Loans	36	52	94	85
Interest Income Recognized on a Cash Basis on Impaired Loans	22	9	39	19
Real estate mortgage | Construction
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	0	0	0	0
Interest Income Recognized on an Accrual Basis on Impaired Loans	0	0	0	0
Interest Income Recognized on a Cash Basis on Impaired Loans	0	0	0	0
Consumer automobile loans
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	0	0	0	0
Interest Income Recognized on an Accrual Basis on Impaired Loans	0	0	0	0
Interest Income Recognized on a Cash Basis on Impaired Loans	0	0	0	0
Other consumer installment loans
Credit Quality and Related Allowance for Loan Losses
Average Investment in Impaired Loans	1	10	1	8
Interest Income Recognized on an Accrual Basis on Impaired Loans	0	0	0	0
Interest Income Recognized on a Cash Basis on Impaired Loans	$ 1	$ 2	$ 1	$ 2

Loans - Loan Modifications (Det

Loans - Loan Modifications (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)contract	Jun. 30, 2017USD ($)contract	Jun. 30, 2018USD ($)contract	Jun. 30, 2017USD ($)contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract			4	0
Pre-Modification Outstanding Recorded Investment			$ 275	$ 0
Post-Modification Outstanding Recorded Investment			$ 275	$ 0
Real estate mortgage | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	1	0	3	0
Pre-Modification Outstanding Recorded Investment	$ 67	$ 0	$ 169	$ 0
Post-Modification Outstanding Recorded Investment	$ 67	$ 0	$ 169	$ 0
Real estate mortgage | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract			1	0
Pre-Modification Outstanding Recorded Investment			$ 106	$ 0
Post-Modification Outstanding Recorded Investment			$ 106	$ 0

Loans - Credit Quality Indicato

Loans - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Credit quality categories
Total	$ 1,330,430	$ 1,246,342
Pass
Credit quality categories
Total	1,307,898	1,218,853
Special Mention
Credit quality categories
Total	8,124	9,118
Substandard
Credit quality categories
Total	14,408	18,371
Commercial, financial, and agricultural
Credit quality categories
Total	183,735	178,885
Commercial, financial, and agricultural | Pass
Credit quality categories
Total	181,796	175,603
Commercial, financial, and agricultural | Special Mention
Credit quality categories
Total	657	738
Commercial, financial, and agricultural | Substandard
Credit quality categories
Total	1,282	2,544
Consumer automobile loans
Credit quality categories
Total	113,361	79,714
Consumer automobile loans | Pass
Credit quality categories
Total	113,361	79,714
Consumer automobile loans | Special Mention
Credit quality categories
Total	0	0
Consumer automobile loans | Substandard
Credit quality categories
Total	0	0
Other consumer installment loans
Credit quality categories
Total	25,750	26,964
Other consumer installment loans | Pass
Credit quality categories
Total	25,750	26,964
Other consumer installment loans | Special Mention
Credit quality categories
Total	0	0
Other consumer installment loans | Substandard
Credit quality categories
Total	0	0
Residential | Real estate mortgage
Credit quality categories
Total	615,586	597,077
Residential | Real estate mortgage | Pass
Credit quality categories
Total	613,050	593,828
Residential | Real estate mortgage | Special Mention
Credit quality categories
Total	393	1,043
Residential | Real estate mortgage | Substandard
Credit quality categories
Total	2,143	2,206
Commercial | Real estate mortgage
Credit quality categories
Total	356,031	332,019
Commercial | Real estate mortgage | Pass
Credit quality categories
Total	337,974	311,209
Commercial | Real estate mortgage | Special Mention
Credit quality categories
Total	7,074	7,337
Commercial | Real estate mortgage | Substandard
Credit quality categories
Total	10,983	13,473
Construction | Real estate mortgage
Credit quality categories
Total	35,967	31,683
Construction | Real estate mortgage | Pass
Credit quality categories
Total	35,967	31,535
Construction | Real estate mortgage | Special Mention
Credit quality categories
Total	0	0
Construction | Real estate mortgage | Substandard
Credit quality categories
Total	$ 0	$ 148

Loans - Allowance for Credit Lo

Loans - Allowance for Credit Losses on Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Allowance for Loan Losses:
Beginning Balance	$ 12,836	$ 12,905	$ 12,858	$ 12,896
Charge-offs	(163)	(141)	(403)	(529)
Recoveries	26	130	84	197
Provision for loan losses	335	215	495	545
Provision	13,034	13,109	13,034	13,109
Commercial, financial, and agricultural
Allowance for Loan Losses:
Beginning Balance	1,372	1,441	1,177	1,554
Charge-offs	(3)	200	(36)	(13)
Recoveries	8	105	15	111
Provision for loan losses	(322)	(15)	(101)	79
Provision	1,055	1,731	1,055	1,731
Real estate mortgage | Residential
Allowance for Loan Losses:
Beginning Balance	5,656	5,571	5,679	5,383
Charge-offs	(91)	(287)	(142)	(385)
Recoveries	1	5	25	35
Provision for loan losses	17	48	21	304
Provision	5,583	5,337	5,583	5,337
Real estate mortgage | Commercial
Allowance for Loan Losses:
Beginning Balance	4,003	4,466	4,277	4,975
Charge-offs	0	0	(55)	0
Recoveries	0	1	0	1
Provision for loan losses	(189)	(740)	(408)	(1,249)
Provision	3,814	3,727	3,814	3,727
Real estate mortgage | Construction
Allowance for Loan Losses:
Beginning Balance	156	187	155	178
Charge-offs	0	0	0	0
Recoveries	3	2	5	5
Provision for loan losses	(41)	(17)	(42)	(11)
Provision	118	172	118	172
Consumer automobile loans
Allowance for Loan Losses:
Beginning Balance	1,016	202	804	143
Charge-offs	(22)	(15)	(52)	(18)
Recoveries	2	0	3	0
Provision for loan losses	73	162	314	224
Provision	1,069	349	1,069	349
Other consumer installment loans
Allowance for Loan Losses:
Beginning Balance	305	346	271	273
Charge-offs	(47)	(39)	(118)	(113)
Recoveries	12	17	36	45
Provision for loan losses	47	106	128	225
Provision	317	430	317	430
Unallocated
Allowance for Loan Losses:
Beginning Balance	328	692	495	390
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for loan losses	750	671	583	973
Provision	$ 1,078	$ 1,363	$ 1,078	$ 1,363

Loans - Schedule of Concentrati

Loans - Schedule of Concentration Risk (Details) - Owners of rental properties - Financing receivable	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Residential
Concentration Risk [Line Items]
Concentration of loans (as a percent)	14.90%	15.64%
Commercial
Concentration Risk [Line Items]
Concentration of loans (as a percent)	13.30%	14.56%

Loans - Allowance for Loan Loss

Loans - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Ending allowance balance attributable to loans:
Individually evaluated for impairment	$ 1,864		$ 2,184
Collectively evaluated for impairment	11,170		10,674
Total ending allowance balance	13,034	$ 12,836	12,858	$ 13,109	$ 12,905	$ 12,896
Loans:
Individually evaluated for impairment	13,974		14,446
Collectively evaluated for impairment	1,316,456		1,231,896
Total	1,330,430		1,246,342
Commercial, financial, and agricultural
Ending allowance balance attributable to loans:
Individually evaluated for impairment	73		96
Collectively evaluated for impairment	982		1,081
Total ending allowance balance	1,055	1,372	1,177	1,731	1,441	1,554
Loans:
Individually evaluated for impairment	1,205		1,268
Collectively evaluated for impairment	182,530		177,617
Total	183,735		178,885
Real estate mortgage | Residential
Ending allowance balance attributable to loans:
Individually evaluated for impairment	228		367
Collectively evaluated for impairment	5,355		5,312
Total ending allowance balance	5,583	5,656	5,679	5,337	5,571	5,383
Loans:
Individually evaluated for impairment	3,997		3,732
Collectively evaluated for impairment	611,589		593,345
Total	615,586		597,077
Real estate mortgage | Commercial
Ending allowance balance attributable to loans:
Individually evaluated for impairment	1,563		1,721
Collectively evaluated for impairment	2,251		2,556
Total ending allowance balance	3,814	4,003	4,277	3,727	4,466	4,975
Loans:
Individually evaluated for impairment	8,772		9,446
Collectively evaluated for impairment	347,259		322,573
Total	356,031		332,019
Real estate mortgage | Construction
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	118		155
Total ending allowance balance	118	156	155	172	187	178
Loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	35,967		31,683
Total	35,967		31,683
Consumer automobile loans
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	1,069		804
Total ending allowance balance	1,069	1,016	804	349	202	143
Loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	113,361		79,714
Total	113,361		79,714
Other consumer installment loans
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	317		271
Total ending allowance balance	317	305	271	430	346	273
Loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	25,750		26,964
Total	25,750		26,964
Unallocated
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	1,078		495
Total ending allowance balance	$ 1,078	$ 328	$ 495	$ 1,363	$ 692	$ 390

Net Periodic Benefit Cost-Def55

Net Periodic Benefit Cost-Defined Benefit Plans (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Net periodic benefit cost of the domestic non-contributory defined benefit plan
Service cost	$ 0	$ 42,000	$ 0	$ 83,000
Interest cost	177,000	189,000	353,000	378,000
Expected return on plan assets	(274,000)	(263,000)	(548,000)	(525,000)
Amortization of net loss	42,000	40,000	84,000	84,000
Net periodic (benefit) cost	(55,000)	$ 8,000	(111,000)	$ 20,000
Expected contribution to Pension Plan (minimum)					$ 500,000
Employer contributions made to the defined benefit plan			250,000
Anticipated additional contributions anticipated during the remainder of the year (at least)	$ 250,000		$ 250,000

Employee Stock Purchase Plan (D

Employee Stock Purchase Plan (Details) - Employee Stock - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Employee Stock Purchase Plan
Number of shares allowed to be purchased by employees (in shares)	1,000,000
Purchase price of the shares with respect to market value (as a percent)	95.00%
Maximum percentage of base compensation	15.00%
Maximum market value	$ 12,000
Number of shares issued under the plan (in shares)	1,196	1,083

Off Balance Sheet Risk (Details

Off Balance Sheet Risk (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Off Balance Sheet Risk
Contract amounts representing credit risk	$ 328,137	$ 280,281
Commitments to extend credit
Off Balance Sheet Risk
Contract amounts representing credit risk	281,934	264,982
Standby letters of credit
Off Balance Sheet Risk
Contract amounts representing credit risk	$ 40,706	10,406
Coverage period for instrument (in years)	1 year
Credit exposure from the sale of assets with recourse
Off Balance Sheet Risk
Contract amounts representing credit risk	$ 5,497	$ 4,893

Fair Value Measurements - Recur

Fair Value Measurements - Recurring Assets (Details) - Recurring - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available-for-sale Securities | Mortgage-backed securities
Fair Value Measurements
Total assets	$ 5,516	$ 4,213
Available-for-sale Securities | State and political securities
Fair Value Measurements
Total assets	65,032	56,508
Available-for-sale Securities | Other debt securities
Fair Value Measurements
Total assets	48,328	47,906
Available-for-sale Securities | Financial institution equity securities
Fair Value Measurements
Total assets	1,217	1,265
Available-for-sale Securities | Other equity securities
Fair Value Measurements
Total assets	1,221	1,251
Available-for-sale Securities | Level I | Mortgage-backed securities
Fair Value Measurements
Total assets	0	0
Available-for-sale Securities | Level I | State and political securities
Fair Value Measurements
Total assets	0	0
Available-for-sale Securities | Level I | Other debt securities
Fair Value Measurements
Total assets	0	0
Available-for-sale Securities | Level I | Financial institution equity securities
Fair Value Measurements
Total assets	1,217	1,265
Available-for-sale Securities | Level I | Other equity securities
Fair Value Measurements
Total assets	1,221	1,251
Available-for-sale Securities | Level II | Mortgage-backed securities
Fair Value Measurements
Total assets	5,516	4,213
Available-for-sale Securities | Level II | State and political securities
Fair Value Measurements
Total assets	65,032	56,508
Available-for-sale Securities | Level II | Other debt securities
Fair Value Measurements
Total assets	48,328	47,906
Available-for-sale Securities | Level II | Financial institution equity securities
Fair Value Measurements
Total assets	0	0
Available-for-sale Securities | Level II | Other equity securities
Fair Value Measurements
Total assets	0	0
Available-for-sale Securities | Level III | Mortgage-backed securities
Fair Value Measurements
Total assets	0	0
Available-for-sale Securities | Level III | State and political securities
Fair Value Measurements
Total assets	0	0
Available-for-sale Securities | Level III | Other debt securities
Fair Value Measurements
Total assets	0	0
Available-for-sale Securities | Level III | Financial institution equity securities
Fair Value Measurements
Total assets	0	0
Available-for-sale Securities | Level III | Other equity securities
Fair Value Measurements
Total assets	0	0
Trading Securities | Other equity securities
Fair Value Measurements
Total assets	243	190
Trading Securities | Level I | Other equity securities
Fair Value Measurements
Total assets	243	190
Trading Securities | Level II | Other equity securities
Fair Value Measurements
Total assets	0	0
Trading Securities | Level III | Other equity securities
Fair Value Measurements
Total assets	$ 0	$ 0

Fair Value Measurements - Non-R

Fair Value Measurements - Non-Recurring Assets (Details) - Nonrecurring - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Impaired loans
Fair Value Measurements
Fair value	$ 12,110	$ 12,262
Impaired loans | Level I
Fair Value Measurements
Fair value	0	0
Impaired loans | Level II
Fair Value Measurements
Fair value	0	0
Impaired loans | Level III
Fair Value Measurements
Fair value	12,110	12,262
Other real estate owned
Fair Value Measurements
Fair value	485	143
Other real estate owned | Level I
Fair Value Measurements
Fair value	0	0
Other real estate owned | Level II
Fair Value Measurements
Fair value	0	0
Other real estate owned | Level III
Fair Value Measurements
Fair value	$ 485	$ 143

Fair Value Measurements - Signi

Fair Value Measurements - Significant Unobservable Inputs (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Impaired loans | Discounted cash flow
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Probability of default	0.00%
Nonrecurring | Impaired loans
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Fair value	$ 12,110	$ 12,262
Nonrecurring | Other real estate owned
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Fair value	485	143
Nonrecurring | Level III | Impaired loans
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Fair value	12,110	12,262
Nonrecurring | Level III | Impaired loans | Discounted cash flow
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Fair value	$ 6,481	$ 6,583
Nonrecurring | Level III | Impaired loans | Discounted cash flow | Minimum
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Temporary reduction in payment amount (as a percent)	0.00%	3.00%
Nonrecurring | Level III | Impaired loans | Discounted cash flow | Maximum
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Temporary reduction in payment amount (as a percent)	(70.00%)	(70.00%)
Nonrecurring | Level III | Impaired loans | Discounted cash flow | Weighted Average
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Temporary reduction in payment amount (as a percent)	(13.00%)	(4.00%)
Nonrecurring | Level III | Impaired loans | Appraisal of collateral
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Fair value	$ 5,629	$ 5,679
Nonrecurring | Level III | Impaired loans | Appraisal of collateral | Minimum
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Appraisal adjustments (as a percent)	0.00%	0.00%
Nonrecurring | Level III | Impaired loans | Appraisal of collateral | Maximum
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Appraisal adjustments (as a percent)	(20.00%)	(20.00%)
Nonrecurring | Level III | Impaired loans | Appraisal of collateral | Weighted Average
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Appraisal adjustments (as a percent)	(17.00%)	(17.00%)
Nonrecurring | Level III | Other real estate owned
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Fair value	$ 485	$ 143
Nonrecurring | Level III | Other real estate owned | Appraisal of collateral
Listing of significant unobservable inputs used in the fair value measurement process for items valued utilizing level III techniques
Fair value	$ 485	$ 143
Appraisal adjustments (as a percent)	(20.00%)	(20.00%)

Fair Value of Financial Instr61

Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Investment securities
Trading	$ 243	$ 190
Restricted investment in bank stock, at fair value	16,716	13,332
Bank-owned life insurance	28,315	27,982
Accrued interest receivable	4,618	4,321
Financial liabilities
Interest-bearing deposits	879,825	843,004
Noninterest-bearing deposits	311,194	303,316
Level I
Financial assets
Cash and cash equivalents (1)	56,007	27,243
Investment securities
Available for sale		2,516
Trading		190
Restricted investment in bank stock, at fair value	0	0
Loans held for sale (1)	2,118	1,196
Loans, net	0	0
Bank-owned life insurance	28,315	27,982
Accrued interest receivable	4,618	4,321
Financial liabilities
Interest-bearing deposits	604,667	611,187
Noninterest-bearing deposits	311,194	303,316
Short-term borrowings (1)	134,637	100,748
Long-term borrowings	0	0
Accrued interest payable (1)	896	502
Level II
Financial assets
Cash and cash equivalents (1)	0	0
Investment securities
Available for sale		108,627
Trading		0
Restricted investment in bank stock, at fair value	16,716	13,332
Loans held for sale (1)	0	0
Loans, net	0	0
Bank-owned life insurance	0	0
Accrued interest receivable	0	0
Financial liabilities
Interest-bearing deposits	0	0
Noninterest-bearing deposits	0	0
Short-term borrowings (1)	0	0
Long-term borrowings	0	0
Accrued interest payable (1)	0	0
Level III
Financial assets
Cash and cash equivalents (1)	0	0
Investment securities
Available for sale		0
Trading		0
Restricted investment in bank stock, at fair value	0	0
Loans held for sale (1)	0	0
Loans, net	1,318,938	1,264,584
Bank-owned life insurance	0	0
Accrued interest receivable	0	0
Financial liabilities
Interest-bearing deposits	248,774	227,254
Noninterest-bearing deposits	0	0
Short-term borrowings (1)	0	0
Long-term borrowings	122,292	70,280
Accrued interest payable (1)	0	0
Carrying Value
Financial assets
Cash and cash equivalents (1)	56,007	27,243
Investment securities
Available for sale		111,143
Trading		190
Restricted investment in bank stock, at fair value	16,716	13,332
Loans held for sale (1)	2,118	1,196
Loans, net	1,318,039	1,233,756
Bank-owned life insurance	28,315	27,982
Accrued interest receivable	4,618	4,321
Financial liabilities
Interest-bearing deposits	879,825	843,004
Noninterest-bearing deposits	311,194	303,316
Short-term borrowings (1)	134,637	100,748
Long-term borrowings	123,970	70,970
Accrued interest payable (1)	896	502
Fair Value
Financial assets
Cash and cash equivalents (1)	56,007	27,243
Investment securities
Available for sale		111,143
Trading		190
Restricted investment in bank stock, at fair value	16,716	13,332
Loans held for sale (1)	2,118	1,196
Loans, net	1,318,938	1,264,584
Bank-owned life insurance	28,315	27,982
Accrued interest receivable	4,618	4,321
Financial liabilities
Interest-bearing deposits	853,441	838,441
Noninterest-bearing deposits	311,194	303,316
Short-term borrowings (1)	134,637	100,748
Long-term borrowings	122,292	70,280
Accrued interest payable (1)	$ 896	$ 502

Stock Options - Additional Info

Stock Options - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	Jan. 05, 2018	Mar. 24, 2017	Aug. 27, 2015	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Employee Stock Purchase Plan
Options, outstanding (in shares)			24,500	115,000	96,500	115,000	96,500	93,500	26,500
Granted (in shares)			38,750			25,000	70,000
Granted (in dollars per share)			$ 42.03			$ 45.11	$ 44.21
Exercisable period (in years)			5 years
Employee Stock Option
Employee Stock Purchase Plan
Compensation expense				$ 4	$ 8	$ 12	$ 13
Number of exercisable options (in shares)				0		0
Weighted average remaining contractual term (in years)						8 years 7 months 6 days
Fair value of options granted				$ 1,103		$ 1,103
Fair value of options granted (in dollars per share)				$ 44.11		$ 44.11
Unrecognized compensation cost for non-vested shares				$ 94		$ 94
Period for recognition (in years)						3 years 6 months
Tranche One
Employee Stock Purchase Plan
Options, outstanding (in shares)	12,500	41,750
Granted (in shares)	12,500	46,250				12,500
Granted (in dollars per share)	$ 45.11	$ 44.21
Exercisable period (in years)	3 years	3 years
Tranche One | Employee Stock Option
Employee Stock Purchase Plan
Exercisable period (in years)						3 years
Tranche Two
Employee Stock Purchase Plan
Options, outstanding (in shares)	12,500	23,750
Granted (in shares)	12,500	23,750				12,500
Granted (in dollars per share)	$ 45.11	$ 44.21
Exercisable period (in years)	5 years	5 years
Tranche Two | Employee Stock Option
Employee Stock Purchase Plan
Exercisable period (in years)						5 years

Stock Options - Schedule of Sto

Stock Options - Schedule of Stock Options Granted (Details) - $ / shares	Jan. 05, 2018	Mar. 24, 2017	Aug. 27, 2015	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Employee Stock Purchase Plan
Shares (in shares)			38,750	25,000	70,000
Forfeited (in shares)			(14,250)	(3,500)	0
Outstanding (in shares)			24,500	115,000	96,500	93,500	26,500
Strike Price (in dollars per share)			$ 42.03	$ 45.11	$ 44.21
Vesting Period (in years)			5 years
Expiration (in years)			10 years
Tranche One
Employee Stock Purchase Plan
Shares (in shares)	12,500	46,250		12,500
Forfeited (in shares)	0	(4,500)
Outstanding (in shares)	12,500	41,750
Strike Price (in dollars per share)	$ 45.11	$ 44.21
Vesting Period (in years)	3 years	3 years
Expiration (in years)	10 years	10 years
Tranche Two
Employee Stock Purchase Plan
Shares (in shares)	12,500	23,750		12,500
Forfeited (in shares)	0	0
Outstanding (in shares)	12,500	23,750
Strike Price (in dollars per share)	$ 45.11	$ 44.21
Vesting Period (in years)	5 years	5 years
Expiration (in years)	10 years	10 years

Stock Options - Schedule of Opt

Stock Options - Schedule of Options Outstanding (Details) - $ / shares	Aug. 27, 2015	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Options, Outstanding
Outstanding, beginning of year (in shares)		93,500	26,500
Granted (in shares)	38,750	25,000	70,000
Exercised (in shares)		0	0
Forfeited (in shares)	(14,250)	(3,500)	0
Expired (in shares)		0	0
Outstanding, end of period (in shares)	24,500	115,000	96,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding, weighted average exercise price (in dollars per share)		$ 43.94	$ 43.61	$ 43.59	$ 42.03
Granted (in dollars per share)	$ 42.03	45.11	44.21
Exercised (in dollars per share)		0	0
Forfeited (in dollars per share)		42.96	0
Expired (in dollars per share)		$ 0	$ 0
Exercisable, end of period (in shares)		0	0
Exercisable, end of period (in dollars per share)		$ 0	$ 0

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Debit card fees	$ 373	$ 501	$ 706	$ 935
Net interchange and card based transaction fees	373	340	706	611
Debit card transaction fees
Disaggregation of Revenue [Line Items]
Debit card fees	541	501	1,060	935
Other processing service fees
Disaggregation of Revenue [Line Items]
Debit card fees	67	63	128	122
Gross interchange and card based transaction fees
Disaggregation of Revenue [Line Items]
Debit card fees	608	564	1,188	1,057
Network costs
Disaggregation of Revenue [Line Items]
Debit card fees	$ 235	$ 224	$ 482	$ 446

Reclassification of Comparati66

Reclassification of Comparative Amounts (Details)	6 Months Ended
	Jun. 30, 2018USD ($)
Reclassification of Comparative Amounts
Effect of reclassification adjustment on net income or shareholders' equity	$ 0