Franklin Financial Services (FRAF) 10-Q 5 Nov 18 2018 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 31, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2,018
Entity Registrant Name	FRANKLIN FINANCIAL SERVICES CORP /PA/
Entity Central Index Key	723,646
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		4,399,135
Trading Symbol	fraf
Entity Small Business	true
Entity Emerging Growth Company	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Assets
Cash and due from banks	$ 16,281	$ 21,433
Interest-bearing deposits in other banks	28,496	37,170
Total cash and cash equivalents	44,777	58,603
Debt securities available for sale, at fair value	125,403	126,971
Equity securities	383	365
Restricted stock	452	456
Loans held for sale	1,072	442
Loans	970,983	943,700
Allowance for loan losses	(12,526)	(11,792)
Net Loans	958,457	931,908
Premises and equipment, net	13,267	13,741
Bank owned life insurance	23,366	22,980
Goodwill	9,016	9,016
Other real estate owned	2,665	2,598
Deferred tax asset, net	4,170	5,803
Other assets	11,596	6,930
Total assets	1,194,624	1,179,813
Deposits
Non-interest bearing checking	196,478	196,853
Money management, savings and interest checking	807,643	774,857
Time	67,736	75,471
Total deposits	1,071,857	1,047,181
Other liabilities	8,739	17,488
Total liabilities	1,080,596	1,064,669
Shareholders' equity
Common stock, $1 par value per share, 15,000,000 shares authorized with 4,701,367 shares issued and 4,398,361 shares outstanding at September 30, 2018 and 4,689,099 shares issued and 4,354,788 shares outstanding at December 31, 2017	4,701	4,689
Capital stock without par value, 5,000,000 shares authorized with no shares issued and outstanding
Additional paid-in capital	41,380	40,396
Retained earnings	81,330	82,218
Accumulated other comprehensive loss	(7,790)	(6,028)
Treasury stock, 303,006 shares at September 30, 2018 and 334,311 shares at December 31, 2017, at cost	(5,593)	(6,131)
Total shareholders' equity	114,028	115,144
Total liabilities and shareholders' equity	$ 1,194,624	$ 1,179,813

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2018	Dec. 31, 2017
Consolidated Balance Sheets [Abstract]
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	15,000,000	15,000,000
Common Stock, Shares, Issued	4,701,367	4,689,099
Common Stock, Shares, Outstanding	4,398,361	4,354,788
Capital stock, no par value	$ 0	$ 0
Capital Stock, Shares Authorized	5,000,000	5,000,000
Capital Stock, Shares, Issued	0	0
Capital Stock, Shares, Outstanding	0	0
Treasury Stock, Shares	303,006	334,311

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Interest income
Loans, including fees	$ 10,565	$ 9,130	$ 30,268	$ 26,808
Interest and dividends on investments:
Taxable interest	507	509	1,548	1,558
Tax exempt interest	293	275	862	861
Dividend income	4	2	15	23
Deposits and obligations of other banks	108	147	326	297
Total interest income	11,477	10,063	33,019	29,547
Interest expense
Deposits	1,101	629	2,847	1,785
Short-term borrowings	21		24	15
Total interest expense	1,122	629	2,871	1,800
Net interest income	10,355	9,434	30,148	27,747
Provision for loan losses	250	250	9,579	420
Net interest income after provision for loan losses	10,105	9,184	20,569	27,327
Noninterest income
Investment and trust services fees	1,424	1,353	4,285	3,991
Loan service charges	191	201	640	657
Deposit service charges and fees	578	611	1,726	1,789
Other service charges and fees	357	340	1,043	996
Debit card income	422	325	1,224	1,062
Increase in cash surrender value of life insurance	129	130	386	391
Net loss on sale of other real estate owned		(23)		(23)
Debt securities gains, net	5	1	56	3
Change in fair value of equity securities	(20)		18
Other	34	33	111	186
Total noninterest income	3,120	2,971	9,489	9,052
Noninterest Expense
Salaries and employee benefits	4,947	4,694	15,029	14,190
Occupancy, furniture and equipment, net	780	809	2,383	2,386
Advertising	345	332	1,113	873
Legal and professional	436	502	1,207	1,173
Data processing	591	567	1,791	1,643
Pennsylvania bank shares tax	239	243	712	728
FDIC Insurance	159	82	452	281
ATM/debit card processing	258	190	734	630
Foreclosed real estate	(8)	24	46	95
Telecommunications	95	106	327	308
Provision for credit losses on off-balance sheet exposures			2,361
Other	729	756	2,253	2,116
Total noninterest expense	8,571	8,305	28,408	24,423
Income before federal income taxes	4,654	3,850	1,650	11,956
Federal income tax expense (benefit)	654	774	(671)	2,517
Net income	$ 4,000	$ 3,076	$ 2,321	$ 9,439
Per share
Basic earnings per share	$ 0.91	$ 0.71	$ 0.53	$ 2.18
Diluted earnings per share	0.91	0.70	0.53	2.17
Cash dividends declared	$ 0.27	$ 0.24	$ 0.78	$ 0.69

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Consolidated Statements Of Comprehensive Income [Abstract]
Net income		$ 4,000	$ 3,076	$ 2,321	$ 9,439
Debt Securities:
Unrealized (losses) gains arising during the period		(638)	(97)	(1,974)	924
Reclassification adjustment included in net income	[1]	(5)	(1)	(56)	(3)
Net unrealized (losses) gains		(643)	(98)	(2,030)	921
Tax effect		135	33	469	(313)
Net of tax amount		(508)	(65)	(1,561)	608
Total other comprehensive (loss) income		(508)	(65)	(1,561)	608
Total Comprehensive Income		3,492	$ 3,011	760	10,047
Reclassification adjustment / Statement line item: Tax expense (benefit)
Debt securities gains, net		$ 1		$ 12	$ 1
[1]	Debt securities gains, net

Consolidated Statements Of Chan

Consolidated Statements Of Changes In Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2016	$ 4,688	$ 39,752	$ 83,081	$ (4,215)	$ (6,813)	$ 116,493
Net income			9,439			9,439
Other comprehensive income (loss)				608		608
Cash dividends declared			(2,988)			(2,988)
Treasury shares issued under employee stock purchase plan		29			120	149
Treasury shares issued under dividend reinvestment plan		296			422	718
Stock option compensation expense		161				161
Balance at Sep. 30, 2017	4,688	40,238	89,532	(3,607)	(6,271)	124,580
Balance at Jun. 30, 2017	4,688	40,096	87,498	(3,542)	(6,380)	122,360
Net income			3,076			3,076
Other comprehensive income (loss)				(65)		(65)
Cash dividends declared			(1,042)			(1,042)
Treasury shares issued under employee stock purchase plan		3			4	7
Treasury shares issued under dividend reinvestment plan		85			105	190
Stock option compensation expense		54				54
Balance at Sep. 30, 2017	4,688	40,238	89,532	(3,607)	(6,271)	124,580
Balance at Dec. 31, 2017	4,689	40,396	82,218	(6,028)	(6,131)	115,144
Cumulative adjustment for fair value of equity securities			201	(201)
Net income			2,321			2,321
Other comprehensive income (loss)				(1,561)		(1,561)
Cash dividends declared			(3,410)			(3,410)
Acquisition of 2,605 shares of treasury stock					(88)	(88)
Treasury shares issued under employee stock purchase plan		34			54	88
Treasury shares issued under dividend reinvestment plan		513			572	1,085
Common stock issued under incentive stock option plan	12	252				264
Stock option compensation expense		185				185
Balance at Sep. 30, 2018	4,701	41,380	81,330	(7,790)	(5,593)	114,028
Balance at Jun. 30, 2018	4,700	41,079	78,514	(7,282)	(5,839)	111,172
Net income			4,000			4,000
Other comprehensive income (loss)				(508)		(508)
Cash dividends declared			(1,184)			(1,184)
Treasury shares issued under employee stock purchase plan		5			7	12
Treasury shares issued under dividend reinvestment plan		210			239	449
Common stock issued under incentive stock option plan	1	24				25
Stock option compensation expense		62				62
Balance at Sep. 30, 2018	$ 4,701	$ 41,380	$ 81,330	$ (7,790)	$ (5,593)	$ 114,028

Consolidated Statements Of Ch_2

Consolidated Statements Of Changes In Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Consolidated Statements Of Changes In Shareholders' Equity [Abstract]
Cash dividends declared	$ 0.27	$ 0.24	$ 0.78	$ 0.69
Acquisition of treasury stock, shares			2,605
Treasury shares issued under employee stock purchase plan, shares	381	241	2,944	6,568
Treasury shares issued under dividend reinvestment plan, shares	12,957	5,723	30,966	22,990
Common stock issued under incentive stock option plans, shares	1,600		12,268

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities
Net income	$ 2,321	$ 9,439
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	989	973
Net amortization of loans and investment securities	1,307	1,269
Amortization and net change in mortgage servicing rights valuation		41
Provision for loan losses	9,579	420
Change in fair value of equity securities	(18)
Debt securities gains, net	(56)	(3)
Pay-out of legal settlement	(10,000)
Provision for credit losses on off-balance sheet exposures	2,361
Loans originated for sale	(16,137)	(6,773)
Proceeds from sale of loans	15,507	6,861
Write-down of other real estate owned	6	60
Acquisition of other real estate owned	105
Write-down on premises and equipment available for sale		45
Loss on sale of premises	17	23
Increase in cash surrender value of life insurance	(386)	(391)
Stock option compensation	185	161
Contribution to pension plan	(1,000)
Increase in other assets	(4,441)	(1,242)
Increase in other liabilities	1,638	2,753
Net cash provided by operating activities	1,977	13,636
Cash flows from investing activities
Proceeds from sales and calls of investment securities available for sale	4,115	875
Proceeds from maturities and pay-downs of securities available for sale	14,289	16,875
Purchase of investment securities available for sale	(20,276)	(6,533)
Net decrease in restricted stock	4	1,311
Net increase in loans	(36,188)	(17,643)
Capital expenditures	(599)	(871)
Proceeds from sale of other assets	117	154
Net proceeds from the sale of other real estate	32	2,255
Net cash used in investing activities	(38,506)	(3,577)
Cash flows from financing activities
Net increase in demand deposits, interest-bearing checking, and savings accounts	32,411	50,325
Net (decrease) increase in time deposits	(7,735)	703
Net decrease in short-term borrowings		(24,270)
Dividends paid	(3,410)	(2,988)
Treasury shares issued under employee stock purchase plan	88	149
Treasury shares issued under dividend reinvestment plan	1,085	718
Common stock issued under stock option plans	264
Net cash provided by financing activities	22,703	24,637
(Decrease) increase in cash and cash equivalents	(13,826)	34,696
Cash and cash equivalents as of January 1	58,603	36,665
Cash and cash equivalents as of September 30	44,777	71,361
Supplemental Disclosures of Cash Flow Information
Cash paid during the year for: Interest on deposits and other borrowed funds	2,818	1,786
Cash paid during the year for: Income taxes	$ 250	$ 3,405

Basis Of Presentation

Basis Of Presentation	9 Months Ended
	Sep. 30, 2018
Basis Of Presentation [Abstract]
Basis Of Presentation	Note 1 - Basis of Presentation The consolidated financial statements include the accounts of Franklin Financial Services Corporation (the Corporation), and its wholly-owned subsidiaries, Farmers and Merchants Trust Company of Chambersburg (the Bank) and Franklin Future Fund Inc. Farmers and Merchants Trust Company of Chambersburg is a commercial bank that has one wholly-owned subsidiary, Franklin Financial Properties Corp. Franklin Financial Properties Corp. holds real estate assets that are leased by the Bank. Franklin Future Fund Inc. is a non-bank investment company. The activities of non-bank entities are not significant to the consolidated totals. All significant intercompany transactions and account balances have been eliminated. In the opinion of management, all adjustments (which include only normal recurring adjustments) necessary to present fairly the consolidated financial position, results of operations, and cash flows as of September 30, 2018 , and for all other periods presented have been made. Certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted. It is suggested that these consolidated financial statements be read in conjunction with the audited consolidated financial statements and notes thereto included in the Corporation’s 2017 Annual Report on Form 10-K. The consolidated results of operations for the nine month period ended September 30, 2018 are not necessarily indicative of the operating results for the full year. Management has evaluated subsequent events for potential recognition and/or disclosure through the date these consolidated financial statements were issued. The consolidated balance sheet at December 31, 2017 has been derived from the audited consolidated financial statements at that date, but does not include all of the information and footnotes required by GAAP for complete consolidated financial statements. For purposes of reporting cash flows, cash and cash equivalents include cash and due from banks, interest-bearing deposits in other banks and federal funds sold. Generally, federal funds are purchased and sold for one-day periods. Earnings per share are computed based on the weighted average number of shares outstanding during each period end. A reconciliation of the weighted average shares outstanding used to calculate basic earnings per share and diluted earnings per share follows:     For the Three Months Ended For the Nine Months Ended  September 30, September 30,  (Dollars and shares in thousands, except per share data) 2018 2017 2018 2017  Weighted average shares outstanding (basic) 4,391 4,343 4,375 4,332  Impact of common stock equivalents 21 21 24 21  Weighted average shares outstanding (diluted) 4,412 4,364 4,399 4,353  Anti-dilutive options excluded from calculation — — — —  Net income $ 4,000 $ 3,076 $ 2,321 $ 9,439  Basic earnings per share $ 0.91 $ 0.71 $ 0.53 $ 2.18  Diluted earnings per share $ 0.91 $ 0.70 $ 0.53 $ 2.17 

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2018
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements	Note 2. Recent Accounting Pronouncements    Standard Description Effective Date Effect on the financial statements or other significant matters   ASU 2018-02, Income Statement (Topic 220), Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income Under ASU 2018-02, entities are allowed, but not required, to reclassify from Accumulated Other Comprehensive Income (AOCI) to retained earnings stranded tax effects resulting from the new federal corporate income tax rate of the Tax Cuts and Jobs Act (the Act). The reclassification could include other stranded tax effects that related to the Act but do not directly related to the change in the federal rate. Tax effects that are stranded in AOCI for other reasons may not be reclassified. Entities also will have an option to adopt the standard retrospectively or in the period of adoption. January 1, 2018 The Corporation adopted the provisions of the ASU in the fourth quarter of 2017. The Company reclassified the disproportionate tax effect resulting from the Act by increasing retained earnings by $992 thousand and reducing AOCI by $992 thousand.   ASU 2016-15, Statements of Cash Flow (Topic 320): Classification of Certain Cash Receipts and Cash Payments The standard clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The amendments are intended to reduce diversity in practice. The standard contains additional guidance clarifying when an entity should separate cash receipts and cash payments and classifies them into more than one class of cash flows (including when reasonable judgement is required to estimate and allocate cash flows) versus when an entity should classify the aggregate amount into one class of cash flows on the basis of predominance. January 1, 2018 The Corporation adopted the provisions of the ASU on January 1, 2018 and it had no material effect on the consolidated financial statements.   ASU 2017-07, Employee Benefits Plan (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost This standard requires an employer to report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations. The amendments in this update also allow only the service cost component to be eligible for capitalization when applicable. January 1, 2018 The Corporation adopted the provisions of the ASU on January 1, 2018 and it had no material effect on the consolidated financial statements. The service cost is reported in Salaries and Benefits expense and the nonservice cost is included in Other Expense on the Consolidated Statement of Income, which totaled $107 thousand and was reclassified for the first nine months of 2017.   ASU 2014-09, Revenue from Contracts with Customers (Topic 606) The amendments in this Update (ASU 2014-09) establish a comprehensive revenue recognition standard. The revenue standard’s core principle is built on the contract between a vendor and a customer for the provision of goods and services. It attempts to depict the exchange of rights and obligations between the parties in the pattern of revenue recognition based on the consideration to which the vendor is entitled. To accomplish this objective, the standard requires five basic steps: (i) identify the contract with the customer, (ii) identify the performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract, and (v) recognize revenue when (or as) the entity satisfies a performance obligation. Three basic transition methods are available – full retrospective, retrospective with certain practical expedients, and a cumulative effect approach. January 1, 2018 The Corporation adopted this ASU on January 1, 2018, on a modified retrospective approach, and it did not have a material effect on the Corporation's consolidated financial statements. See Note 11. Revenue Recognition for more information.   ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities The standard amends the guidance on the classification and measurement of financial instruments. Some of the amendments include the following: 1) requires equity investments to be measured at fair value with changes in fair value recognized in net income; 2) simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment; 3) requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; and 4) requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value; among others. January 1, 2018 The Corporation adopted the provisions of the ASU on January 1, 2018 and it had no material effect on the consolidated financial statements. The Corporation reclassified the fair value of equity securities by increasing retained earnings by $201 thousand and decreasing AOCI by $201 thousand. In addition, according to the standard, the Corporation measured the fair value of the loan portfolio beginning March 31, 2018 using an exit price notion. See Note 9. Fair Value Measurements and Fair Values of Financial Instruments for more information.   ASU 2016-02, Leases (Topic 842) From the lessee’s perspective, the new standard established a right-of-use (ROU) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement for lessees. From the lessor’s perspective, the new standard requires a lessor to classify leases as either sales-type, finance or operating. A lease will be treated as a sale if it transfers all of the risks and rewards, as well as control of the underlying asset, to the lessee. If risks and rewards are conveyed without the transfer of control, the lease is treated as financing. If the lessor doesn’t convey risks and rewards or control, an operating lease results. January 1, 2019 The Corporation currently has real estate and equipment leases that it classifies as operating leases that are not recognized on the balance sheet. Under the new standard, these leases will move onto the balance sheet in the form of a lease liability (the present value of a lessee's obligation to make lease payments) and a right-of-use asset (an asset that represents the lessee's right to use a specified asset for the lease term). The offsetting transactions will gross-up the Consolidated Balance Sheet. The Corporation has identified all of its leases (approximately 63, primarily equipment and property leases), but has not determined the effect on the Consolidated Balance Sheet. The Corporation has acquired a lease accounting model to implement the standard to be used in a test mode during 2018. The Corporation expects to adopt the standard using the modified retrospective approach and elect the transition options of ASU 2018-11. The Corporation currently expects that the new standard will not have a material effect on its consolidated results of operations.   ASU 2018-11, Leases - Targeted Improvements (Topic 842) This guidance provides entities with relief from the costs of implementing certain aspects of the new leasing standard, ASU No. 2016-02. Specifically, under the amendments in ASU 2018-11: (1) entities may elect not to recast the comparative periods presented when transitioning to the new leasing standard, and (2) lessors may elect not to separate lease and non-lease components when certain conditions are met. The amendments have the same effective date as ASU 2016-02 (January 1, 2019 for the Corporation).   ASU 2018-15, Accounting for Implementation Costs in a Cloud Computing Arrangement (Topic 350) This ASU required an entity in a cloud computing arrangement (i.e., hosting arrangement) that is a service contract to follow the internal-use software guidance in ASC 350-40 to determine which implementation costs to capitalize as assets or expense as incurred. Capitalized implementation costs should be presented in the same line item on the balance sheet as amounts prepaid for the hosted service, if any (generally as an "other asset"). The capitalized costs will be amortized over the term of the hosting arrangement, with the amortization expense being presented in the same income statement line item as the fees paid for the hosted service. January 1, 2019 The Corporation is reviewing its internal accounting procedures for this implementation. The Corporation does not expect the standard will have a material effect on its consolidated results of operations.   ASU 2018-13, Disclosure Framework (Topic 820) This guidance eliminates, adds and modifies certain disclosure requirements for fair value measurements. Among the changes, entities will no longer be required to disclose the amount of and reason for transfers between Level 1 and Level 2 of the fair value hierarchy, but will be required to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. January 1, 2019 The Corporation is reviewing its financial reporting procedures for this implementation. The Corporation does not expect the standard will have a material effect on its consolidated results of operations.   ASU 2017-04, Goodwill (Topic 350) This guidance, among other things, removes step 2 of the goodwill impairment test thus eliminating the need to determine the fair value of individual assets and liabilities of the reporting unit. Upon adoption of this standard, goodwill impairment will be the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. This may result in more or less impairment being recognized than under the current guidance. Early adoption is permitted for any impairment tests performed after January 1, 2017, applied prospectively. January 1, 2020 The Corporation expects to early adopt the ASU in the fourth quarter of 2018 with the completion of the 2018 impairment analysis. We do not expect this guidance to have a material effect on the Corporation's consolidated financial statements based upon the prior goodwill impairment analysis.   ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments This standard requires credit losses on most financial assets measured at amortized cost and certain other instruments to be measured using an expected credit loss model (referred to as the current expected credit loss (CECL) model). Under this model, entities will estimate credit losses over the entire contractual term of the instrument (considering estimated prepayments, but not expected extensions or modifications unless reasonable expectation of a troubled debt restructuring exists) from the date of initial recognition of that instrument. The ASU replaces the current accounting model for purchased credit impaired loans and debt securities. The allowance for credit losses for purchased financial assets with a more-than insignificant amount of credit deterioration since origination (“PCD assets”), should be determined in a similar manner to other financial assets measured on an amortized cost basis. However, upon initial recognition, the allowance for credit losses is added to the purchase price (“gross up approach”) to determine the initial amortized cost basis. The subsequent accounting for PCD financial assets is the same expected loss model described above. January 1, 2020 We have formed an implementation team led by the Corporation's Risk Management function. The team is reviewing the requirements of the ASU and evaluating methods and models for implementation. The new standard will result in earlier recognition of additions to the allowance for loan losses and possibly a larger allowance for loan loss balance with a corresponding increase in the provision for loan losses in results of operations; however, the Corporation is continuing to evaluate the impact of the pending adoption of the new standard on its consolidated financial statements. A third-party vendor has been selected to assist with the CECL calculations and the implementation process has started. The Corporation expects to be able to run the CECL model in test mode starting near the end of the first quarter of 2019. 

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
	Sep. 30, 2018
Accumulated Other Comprehensive Loss [Abstract]
Accumulated Other Comprehensive Loss	Note 3. Accumulated Other Comprehensive Loss The components of accumulated other comprehensive loss es included in shareholders' equity are as follows:      September 30, December 31,  2018 2017  (Dollars in thousands)  Net unrealized (losses) gains on debt securities $ (2,077) $ 154  Tax effect 436 (33)  Net of tax amount (1,641) 121   Accumulated pension adjustment (7,784) (7,784)  Tax effect 1,635 1,635  Net of tax amount (6,149) (6,149)   Total accumulated other comprehensive loss $ (7,790) $ (6,028)

Investments

Investments	9 Months Ended
	Sep. 30, 2018
Investments [Abstract]
Investments	Note 4 . Investments Available for Sale (AFS) Securities The amortized cost and estimated fair value of AFS securities as of September 30, 2018 and December 31, 2017 are as follows :      (Dollars in thousands) Gross Gross  Amortized unrealized unrealized Fair  September 30, 2018 cost gains losses value  U.S. Government and Agency securities $ 9,405 $ 15 $ (144) $ 9,276  Municipal securities 63,221 176 (994) 62,403  Trust preferred securities 4,069 — (122) 3,947  Agency mortgage-backed securities 46,394 39 (1,063) 45,370  Private-label mortgage-backed securities 474 43 — 517  Asset-backed securities 3,917 — (27) 3,890  $ 127,480 $ 273 $ (2,350) $ 125,403       (Dollars in thousands) Gross Gross  Amortized unrealized unrealized Fair  December 31, 2017 cost gains losses value  Equity securities $ 164 $ 201 $ — $ 365  U.S. Government and Agency securities 11,451 64 (43) 11,472  Municipal securities 57,374 650 (252) 57,772  Trust preferred securities 6,000 — (183) 5,817  Agency mortgage-backed securities 51,307 197 (567) 50,937  Private-label mortgage-backed securities 858 88 — 946  Asset-backed securities 28 — (1) 27  $ 127,182 $ 1,200 $ (1,046) $ 127,336  At September 30, 2018 and December 31, 2017 , the fair value of AFS securities pledged to secure public funds and trust deposits totaled $ 86.9 million and $ 84.1 million, respectively. The amortized cost and estimated fair value of debt securities at September 30, 2018 , by contractual maturity are shown below. Actual maturities may differ from contractual maturities because of prepayment or call options embedded in the securities.    (Dollars in thousands) Amortized cost Fair value  Due in one year or less $ 14,466 $ 14,508  Due after one year through five years 33,277 33,081  Due after five years through ten years 31,927 31,026  Due after ten years 942 901  80,612 79,516  Mortgage-backed securities 46,868 45,887  $ 127,480 $ 125,403  The composition of the net realized gains on AFS securities for the three and nine months ended are as follows:    For the Three Months Ended For the Nine Months Ended  September 30, September 30,  (Dollars in thousands) 2018 2017 2018 2017  Gross gains realized $ 5 $ 1 $ 67 $ 3  Gross losses realized — — (11) —  Net gains realized $ 5 $ 1 $ 56 $ 3  Impairment : The AFS investment portfolio contained 192 securities with $100 million of temporarily impaired fair value and $2.4 million in unrealized losses at September 30, 2018. The total unrealized loss position has increased $1.3 million since year-end 2017. For securities with an unrealized loss, Management applies a systematic methodology in order to perform an assessment of the potential for other-than-temporary impairment. In the case of debt securities, investments considered for other-than-temporary impairment: (1) had a specified maturity or repricing date; (2) were generally expected to be redeemed at par, and (3) were expected to achieve a recovery in market value within a reasonable period of time. In addition, the Bank considers whether it intends to sell these securities or whether it will be forced to sell these securities before the earlier of amortized cost recovery or maturity. The impairment identified on debt securities and subject to assessment at September 30, 2018, was deemed to be temporary and required no further adjustments to the financial statements, unless otherwise noted. The following table reflects temporary impairment in the AFS portfolio, aggregated by investment category, length of time that individual securities have been in a continuous unrealized loss position and the number of securities in each category as of September 30, 2018 and December 31, 2017 :     September 30, 2018  Less than 12 months 12 months or more Total  Fair Unrealized Fair Unrealized Fair Unrealized  (Dollars in thousands) Value Losses Count Value Losses Count Value Losses Count   U.S. Government and Agency securities $ 4,011 $ (54) 5 $ 4,381 $ (90) 12 $ 8,392 $ (144) 17  Municipal securities 28,938 (520) 47 13,014 (474) 23 41,952 (994) 70  Trust preferred securities 2,102 (62) 3 1,845 (60) 2 3,947 (122) 5  Agency mortgage-backed securities 18,326 (311) 40 22,996 (752) 53 41,322 (1,063) 93  Asset-backed securities 3,886 (26) 6 4 (1) 1 3,890 (27) 7  Total temporarily impaired securities $ 57,263 $ (973) 101 $ 42,240 $ (1,377) 91 $ 99,503 $ (2,350) 192       December 31, 2017  Less than 12 months 12 months or more Total  Fair Unrealized Fair Unrealized Fair Unrealized  (Dollars in thousands) Value Losses Count Value Losses Count Value Losses Count   U.S. Government and Agency securities $ 2,315 $ (11) 5 $ 3,528 $ (32) 10 $ 5,843 $ (43) 15  Municipal securities 13,767 (89) 22 7,507 (163) 14 21,274 (252) 36  Trust preferred securities 1,216 (12) 2 4,601 (171) 5 5,817 (183) 7  Agency mortgage-backed securities 16,287 (129) 29 20,563 (438) 39 36,850 (567) 68  Asset-backed securities — — — 4 (1) 1 4 (1) 1  Total temporarily impaired securities $ 33,585 $ (241) 58 $ 36,203 $ (805) 69 $ 69,788 $ (1,046) 127   The following table represents the cumulative credit losses on AFS securities recognized in earnings for:      Nine Months Ended  (Dollars in thousands) September 30,  2018 2017  Balance of cumulative credit-related OTTI at January 1 $ 595 $ 595  Additions for credit-related OTTI not previously recognized — —  Additional increases for credit-related OTTI previously recognized when there is  no intent to sell and no requirement to sell before recovery of amortized cost basis — —  Decreases for previously recognized credit-related OTTI because there was an intent to sell (323) —  Reduction for increases in cash flows expected to be collected — —  Balance of credit-related OTTI at September 30 $ 272 $ 595  Equity Securities at fair value The Corporation owns one equity investment. At September 30, 2018, this investment was reported at fair value ( $383 thousand) with changes in value reported through income. At December 31, 2017, this investment was reported at fair value with changes in value recorded through other comprehensive income and was included in the Available for Sale Securities table of this note. Restricted Stock at Cost The Bank held $452 thousand of restricted stock at September 30, 2018. Except for $30 thousand, this investment represents stock in FHLB Pittsburgh. The Bank is required to hold this stock to be a member of FHLB and it is carried at cost of $100 per share. The level of FHLB stock held is determined by FHLB and is comprised of a minimum membership amount plus a variable activity amount. FHLB stock is evaluated for impairment primarily based on an assessment of the ultimate recoverability of its cost. As a government sponsored entity, FHLB has the ability to raise funding through the U.S. Treasury that can be used to support its operations. There is not a public market for FHLB stock and the benefits of FHLB membership (e.g., liquidity and low cost funding) add value to the stock beyond purely financial measures. Management intends to remain a member of the FHLB and believes that it will be able to fully recover the cost basis of this investment. 

Loans

Loans	9 Months Ended
	Sep. 30, 2018
Loans [Abstract]
Loans	Note 5 . Loans The Bank reports its loan portfolio based on the primary collateral of the loan. It further classifies these loans by the primary purpose, either consumer or commercial. The Bank’s residential real estate loans include long-term loans to individuals and businesses secured by mortgages on the borrower’s real property and include home equity loans . Construction loans are made to finance the purchase of land and the construction of residential and commercial buildings thereon, and are secured by mortgages on real estate. Commercial real estate loans include construction, owner and non-owner occupied properties and farm real estate. Commercial loans are made to businesses of various sizes for a variety of purposes including property, plant and equipment, working capital and loans to government municipalities . Commercial lending is concentrated in the Bank’s primary market, but also includes purchased loan participations. Consumer loans are comprised of installment loans and unsecured personal lines of credit. A summary of loans outstanding, by class , at the end of the reporting periods is as follows:    September 30, December 31,  (Dollars in thousands) 2018 2017  Residential Real Estate 1-4 Family  Consumer first liens $ 90,029 $ 97,159  Commercial first lien 60,142 61,275  Total first liens 150,171 158,434   Consumer junior liens and lines of credit 43,044 45,043  Commercial junior liens and lines of credit 5,040 5,328  Total junior liens and lines of credit 48,084 50,371  Total residential real estate 1-4 family 198,255 208,805   Residential real estate - construction  Consumer 2,779 1,813  Commercial 9,510 8,088  Total residential real estate construction 12,289 9,901   Commercial real estate 475,838 428,428  Commercial 279,835 291,519  Total commercial 755,673 719,947   Consumer 4,766 5,047  970,983 943,700  Less: Allowance for loan losses (12,526) (11,792)  Net Loans $ 958,457 $ 931,908   Included in the loan balances are the following:  Net unamortized deferred loan costs $ 73 $ 98   Loans pledged as collateral for borrowings and commitments from:  FHLB $ 762,292 $ 737,313  Federal Reserve Bank 34,685 35,740  $ 796,977 $ 773,053

Loan Quality And Allowance for

Loan Quality And Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2018
Loan Quality And Allowance for Loan Losses [Abstract]
Loan Quality and Allowance for Loan Losses	Note 6 . Loan Quality and Allowance for Loan Losses The following table presents, by c l ass , the activity in the Allowance for Loan Losses (ALL) for the periods shown :    Residential Real Estate 1-4 Family  First Junior Liens & Commercial  (Dollars in thousands) Liens Lines of Credit Construction Real Estate Commercial Consumer Unallocated Total   ALL at June 30, 2018 $ 1,022 $ 318 $ 282 $ 7,028 $ 2,233 $ 107 $ 1,492 $ 12,482  Charge-offs — — — — (208) (23) — (231)  Recoveries — — — 1 19 5 — 25  Provision (16) (4) (4) 242 122 12 (102) 250  ALL at September 30, 2018 $ 1,006 $ 314 $ 278 $ 7,271 $ 2,166 $ 101 $ 1,390 $ 12,526   ALL at December 31, 2017 $ 1,060 $ 330 $ 224 $ 6,526 $ 2,110 $ 105 $ 1,437 $ 11,792  Charge-offs — — — — (8,944) (78) — (9,022)  Recoveries 1 — — 17 135 24 — 177  Provision (55) (16) 54 728 8,865 50 (47) 9,579  ALL at September 30, 2018 $ 1,006 $ 314 $ 278 $ 7,271 $ 2,166 $ 101 $ 1,390 $ 12,526   ALL at June 30, 2017 $ 1,075 $ 322 $ 281 $ 6,052 $ 2,023 $ 100 $ 1,454 $ 11,307  Charge-offs — — — (9) (6) (31) — (46)  Recoveries 1 5 — 17 5 4 — 32  Provision (15) (3) (42) 198 (19) 19 112 250  ALL at September 30, 2017 $ 1,061 $ 324 $ 239 $ 6,258 $ 2,003 $ 92 $ 1,566 $ 11,543   ALL at December 31, 2016 $ 1,105 $ 323 $ 224 $ 6,109 $ 1,893 $ 100 $ 1,321 $ 11,075  Charge-offs (13) — — (14) (8) (83) — (118)  Recoveries 2 6 — 17 111 30 — 166  Provision (33) (5) 15 146 7 45 245 420  ALL at September 30, 2017 $ 1,061 $ 324 $ 239 $ 6,258 $ 2,003 $ 92 $ 1,566 $ 11,543  T he following table presents, by c la ss , loans that were evaluated for the ALL under the specific reserve (individually) and those that were evaluated under the general reserve (collectively) and the amount of the ALL established in each class as of September 30, 2018 and December 31, 2017 :     Residential Real Estate 1-4 Family  First Junior Liens & Commercial  (Dollars in thousands) Liens Lines of Credit Construction Real Estate Commercial Consumer Unallocated Total   September 30, 2018  Loans evaluated for ALL:  Individually $ 408 $ — $ 460 $ 10,574 $ 3,106 $ — $ — $ 14,548  Collectively 149,763 48,084 11,829 465,264 276,729 4,766 — 956,435  Total $ 150,171 $ 48,084 $ 12,289 $ 475,838 $ 279,835 $ 4,766 $ — $ 970,983   ALL established for loans evaluated:  Individually $ — $ — $ — $ — $ 181 $ — $ — $ 181  Collectively 1,006 314 278 7,271 1,985 101 1,390 12,345  ALL at September 30, 2018 $ 1,006 $ 314 $ 278 $ 7,271 $ 2,166 $ 101 $ 1,390 $ 12,526   December 31, 2017  Loans evaluated for ALL:  Individually $ 459 $ — $ 466 $ 10,981 $ — $ — $ — $ 11,906  Collectively 157,975 50,371 9,435 417,447 291,519 5,047 — 931,794  Total $ 158,434 $ 50,371 $ 9,901 $ 428,428 $ 291,519 $ 5,047 $ — $ 943,700   ALL established for loans evaluated:  Individually $ — $ — $ — $ — $ — $ — $ — $ —  Collectively 1,060 330 224 6,526 2,110 105 1,437 11,792  ALL at December 31, 2017 $ 1,060 $ 330 $ 224 $ 6,526 $ 2,110 $ 105 $ 1,437 $ 11,792 The following table shows additional information about those loans considered to be impaired at September 30, 2018 and December 31, 2017 :     Impaired Loans  With No Allowance With Allowance  (Dollars in thousands) Unpaid Unpaid  Recorded Principal Recorded Principal Related  September 30, 2018 Investment Balance Investment Balance Allowance  Residential Real Estate 1-4 Family  First liens $ 754 $ 870 $ — $ — $ —  Junior liens and lines of credit 66 66 — — —  Total 820 936 — — —  Residential real estate - construction 460 531 — — —  Commercial real estate 10,715 11,248 — — —  Commercial 3,082 10,653 181 181 181  Total $ 15,077 $ 23,368 $ 181 $ 181 $ 181      December 31, 2017  Residential Real Estate 1-4 Family  First liens $ 869 $ 950 $ — $ — $ —  Junior liens and lines of credit — — — — —  Total 869 950 — — —  Residential real estate - construction 466 531 — — —  Commercial real estate 11,061 11,541 — — —  Commercial 187 201 — — —  Total $ 12,583 $ 13,223 $ — $ — $ —  The following table shows the average of impaired loans and related interest income for the three and nine months ended September 30, 2018 and 2017 :    Three Months Ended Nine Months Ended  September 30, 2018 September 30, 2018  Average Interest Average Interest  (Dollars in thousands) Recorded Income Recorded Income  Investment Recognized Investment Recognized  Residential Real Estate 1-4 Family  First liens $ 1,091 $ 10 $ 899 $ 31  Junior liens and lines of credit 268 2 750 2  Total 1,359 12 1,649 33  Residential real estate - construction 461 — 463 —  Commercial real estate 10,789 107 10,314 316  Commercial 3,465 — 5,284 —  Total $ 16,074 $ 119 $ 17,710 $ 349   Three Months Ended Nine Months Ended  September 30, 2017 September 30, 2017  Average Interest Average Interest  (Dollars in thousands) Recorded Income Recorded Income  Investment Recognized Investment Recognized  Residential Real Estate 1-4 Family  First liens $ 1,157 $ 10 $ 1,152 $ 32  Junior liens and lines of credit 54 — 85 —  Total 1,211 10 1,237 32  Residential real estate - construction 471 — 475 —  Commercial real estate 11,218 109 12,216 328  Commercial 292 — 263 —  Total $ 13,192 $ 119 $ 14,191 $ 360 The following table presents the aging of payments of the loan portfolio :     (Dollars in thousands) Loans Past Due and Still Accruing Total  Current 30-59 Days 60-89 Days 90 Days+ Total Non-Accrual Loans  September 30, 2018  Residential Real Estate 1-4 Family  First liens $ 149,366 $ 503 $ 231 $ — $ 734 $ 71 $ 150,171  Junior liens and lines of credit 47,907 40 71 43 154 23 48,084  Total 197,273 543 302 43 888 94 198,255  Residential real estate - construction 11,359 70 400 — 470 460 12,289  Commercial real estate 468,202 2,224 3,606 — 5,830 1,806 475,838  Commercial 276,180 328 64 — 392 3,263 279,835  Consumer 4,726 39 1 — 40 — 4,766  Total $ 957,740 $ 3,204 $ 4,373 $ 43 $ 7,620 $ 5,623 $ 970,983      December 31, 2017  Residential Real Estate 1-4 Family  First liens $ 157,247 $ 485 $ 534 $ — $ 1,019 $ 168 $ 158,434  Junior liens and lines of credit 50,202 139 30 — 169 — 50,371  Total 207,449 624 564 — 1,188 168 208,805  Residential real estate - construction 9,435 — — — — 466 9,901  Commercial real estate 425,806 421 347 — 768 1,854 428,428  Commercial 291,221 111 — — 111 187 291,519  Consumer 5,017 23 7 — 30 — 5,047  Total $ 938,928 $ 1,179 $ 918 $ — $ 2,097 $ 2,675 $ 943,700  The following table reports the internal credit rating for the loan portfolio. Consumer purpose loans are assigned a rating of either pass or substandard based on the performance status of the loans. Substandard consumer loans are comprised of loans 90 days or more past due and still accruing , and nonaccrual loans. Commercial purpose loans may be assigned any rating in accordance with the Bank’s internal risk rating system.     Pass Special Mention Substandard Doubtful  (Dollars in thousands) (1-5) (6) (7) (8) Total   September 30, 2018  Residential Real Estate 1-4 Family  First liens $ 149,741 $ — $ 430 $ — $ 150,171  Junior liens and lines of credit 48,018 — 66 — 48,084  Total 197,759 — 496 — 198,255  Residential real estate - construction 11,556 — 733 — 12,289  Commercial real estate 466,800 665 8,373 — 475,838  Commercial 275,249 — 4,586 — 279,835  Consumer 4,766 — — — 4,766  Total $ 956,130 $ 665 $ 14,188 $ — $ 970,983       December 31, 2017  Residential Real Estate 1-4 Family  First liens $ 157,395 $ — $ 1,039 $ — $ 158,434  Junior liens and lines of credit 50,371 — — — 50,371  Total 207,766 — 1,039 — 208,805  Residential real estate - construction 8,893 — 1,008 — 9,901  Commercial real estate 419,277 680 8,471 — 428,428  Commercial 289,916 — 1,603 — 291,519  Consumer 5,047 — — — 5,047  Total $ 930,899 $ 680 $ 12,121 $ — $ 943,700  The following table presents information on the Bank’s Troubled Debt Restructuring (TDR) loans:   Troubled Debt Restructurings  Within the Last 12 Months  That Have Defaulted  (Dollars in thousands) Troubled Debt Restructurings On Modified Terms  Number of Recorded Number of Recorded  Contracts Investment Performing* Nonperforming* Contracts Investment  September 30, 2018  Residential real estate - construction 1 $ 460 $ — $ 460 — $ —  Residential real estate 4 683 683 — — —  Commercial real estate 11 10,574 8,909 1,665 — —  Total 16 $ 11,717 $ 9,592 $ 2,125 — $ —    December 31, 2017  Residential real estate - construction 1 $ 466 $ 466 $ — — $ —  Residential real estate 5 737 701 36 — —  Commercial real estate 11 10,983 10,388 595 — —  Total 17 $ 12,186 $ 11,555 $ 631 — $ —  * The performing status is determined by the loan’s compliance with the modified terms .  There were no new TDR loans during 201 8 and 2017 .

Other Real Estate Owned

Other Real Estate Owned	9 Months Ended
	Sep. 30, 2018
Other Real Estate Owned [Abstract]
Other Real Estate Owned	Note 7. Other Real Estate Owned Changes in other real estate owned during the nine months ended September 30, 2018 and 2017 were as follows:    September 30,  (Dollars in thousands) 2018 2017  Balance at beginning of the period $ 2,598 $ 4,915  Additions 105 52  Proceeds from dispositions (32) (2,255)  Loss on sales, net — (23)  Valuation adjustment (6) (60)  Balance at the end of the period $ 2,665 $ 2,629

Pension

Pension	9 Months Ended
	Sep. 30, 2018
Pension [Abstract]
Pension	Note 8 . Pension The components of pension expense for the periods presented are as follows:    Three Months Ended Nine Months Ended  September 30, September 30,  (Dollars in thousands) 2018 2017 2018 2017  Components of net periodic cost:  Service cost $ 90 $ 80 $ 270 $ 237  Interest cost 138 167 414 500  Expected return on plan assets (279) (268) (837) (804)  Recognized net actuarial loss 176 137 528 411  Net period cost $ 125 $ 116 $ 375 $ 344  The Bank expects its pension expense to increase to approximately $500 thousand in 2018 compared to $459 thousand in 2017, due primarily to increases in interest costs and recognized net actuarial losses . A pension contribution of $1.0 million was made in first quarter of 2018. The service cost component of pension expense is in the salaries and employee benefits line on the income statement. All other cost components are in the other expense line on the income statement.

Fair Value Measurements And Fai

Fair Value Measurements And Fair Values Of Financial Instruments	9 Months Ended
	Sep. 30, 2018
Fair Value Measurements And Fair Values Of Financial Instruments [Abstract]
Fair Value Measurements And Fair Values Of Financial Instruments	 Note 9. Fair Value Measurements and Fair Values of Financial Instruments Management uses its best judgment in estimating the fair value of the Corporation’s financial instruments; however, there are inherent weaknesses in any estimation technique. Therefore, for substantially all financial instruments, the fair value estimates herein are not necessarily indicative of the amounts the Corporation could have realized in a sales transaction on the dates indicated. The estimated fair value amounts have been measured as of their respective period-ends and have not been re-evaluated or updated for purposes of these financial statements subsequent to those respective dates. As such, the estimated fair values of these financial instruments subsequent to the respective reporting dates maybe different than the amounts reported at each year-end. FASB ASC Topic 820, “Financial Instruments”, requires disclosure of the fair value of financial assets and liabilities, including those financial assets and liabilities that are not measured and reported at fair value on a recurring and nonrecurring basis. The Corporation does not report any nonfinancial assets at fair value. FASB ASC Topic 820 establishes a fair value hierarchy that prioritizes the inputs to valuation methods used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under FASB ASC Topic 820 are as follows: Level 1 : Valuation is based on unadjusted, quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2 : Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. There may be substantial differences in the assumptions used for securities within the same level. For example, prices for U.S. Agency securities have fewer assumptions and are closer to level 1 valuations than the private label mortgage backed securities that require more assumptions and are closer to level 3 valuations. Level 3 : Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect the Corporation’s assumptions regarding what market participants would assume when pricing a financial instrument. An asset’s or liability’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. On January 1, 2018, the Corporation adopted ASU 2016-01, which requires the use of the exit price notion to measure the fair value of financial instruments. The following information regarding the fair value of the Corporation’s financial instruments should not be interpreted as an estimate of the fair value of the entire Corporation since a fair value calculation is only provided for a limited portion of the Corporation’s assets and liabilities. Due to a wide range of valuation techniques and the degree of subjectivity used in making the estimates, comparisons between the Corporation’s disclosures and those of other companies may not be meaningful. The fair value of the Corporation's financial instruments are as follows:      September 30, 2018  Carrying Fair  (Dollars in thousands) Amount Value Level 1 Level 2 Level 3  Financial assets, carried at cost:  Cash and cash equivalents $ 44,777 $ 44,777 $ 44,777 $ — $ —  Restricted stock 452 452 — 452 —  Loans held for sale 1,072 1,072 1,072  Net loans 958,457 933,824 — — 933,824  Accrued interest receivable 3,733 3,733 — 3,733 —   Financial assets, available for sale  Debt securities 125,403 125,403 — 125,403 —   Financial assets, fair value  Equity securities 383 383 383 — —   Financial liabilities:  Deposits $ 1,071,857 $ 1,071,744 $ — $ 1,071,744 $ —  Accrued interest payable 202 202 — 202 —  Off balance sheet financial instruments — — — — —   December 31, 2017  Carrying Fair  (Dollars in thousands) Amount Value Level 1 Level 2 Level 3  Financial assets:  Cash and cash equivalents $ 58,603 $ 58,603 $ 58,603 $ — $ —  Investment securities available for sale 127,336 127,336 365 126,971 —  Restricted stock 456 456 — 45 —  Loans held for sale 442 442 — 442 —  Net loans 931,908 929,891 — — 929,891  Accrued interest receivable 3,847 3,847 — 3,847 —   Financial liabilities:  Deposits $ 1,047,181 $ 1,046,476 $ — $ 1,046,476 $ —  Accrued interest payable 149 149 — 149 —  Recurring Fair Value Measurements For financial assets and liabilities measured at fair value on a recurring basis, the fair value measurements by level within the fair value hierarchy used at September 30, 2018 and December 31, 2017 are as follows:      (Dollars in Thousands Fair Value at September 30, 2018  Asset Description Level 1 Level 2 Level 3 Total  Equity securities, at fair value $ 383 $ — $ — $ 383   Available for sale:  U.S. Government and Agency securities — 9,276 — 9,276  Municipal securities — 62,403 — 62,403  Trust Preferred Securities — 3,947 — 3,947  Agency mortgage-backed securities — 45,370 — 45,370  Private-label mortgage-backed securities — 517 — 517  Asset-backed securities — 3,890 — 3,890  Total assets $ 383 $ 125,403 $ — $ 125,786       (Dollars in Thousands) Fair Value at December 31, 2017  Asset Description Level 1 Level 2 Level 3 Total  Equity securities $ 365 $ — $ — $ 365  U.S. Government and Agency securities — 11,472 — 11,472  Municipal securities — 57,772 — 57,772  Trust Preferred Securities — 5,817 — 5,817  Agency mortgage-backed securities — 50,937 — 50,937  Private-label mortgage-backed securities — 946 — 946  Asset-backed securities — 27 — 27  Total assets $ 365 $ 126,971 $ — $ 127,336  Investment securities: Level 1 securities represent equity securities that are valued using quoted market prices form nationally recognized markets. Level 2 securities represent debt securities that are valued using a mathematical model based upon the specific characteristics of a security in relationship to quoted prices for similar securities. Nonrecurring Fair Value Measurements For financial assets measured at fair value on a nonrecurring basis, the fair value measurements by level within the fair value hierarchy used at September 30, 2018 and December 31, 2017 are as follows:      (Dollars in Thousands)  Fair Value at September 30, 2018  Asset Description Level 1 Level 2 Level 3 Total  Impaired Loans (1) $ — $ — $ 2,925 $ 2,925  Total assets $ — $ — $ 2,925 $ 2,925      (Dollars in Thousands) Fair Value at December 31, 2017  Asset Description Level 1 Level 2 Level 3 Total  Other real estate owned (1) $ — $ — $ 90 $ 90  Total assets $ — $ — $ 90 $ 90 (1) Includes assets directly charged-down to fair value during the year-to-date period.  The Corporation used the following methods and significant assumptions to estimate the fair values for financial assets measured at fair value on a nonrecurring basis. Other real estate : The fair value of other real estate, upon initial recognition, is estimated using Level 2 inputs within the fair value hierarchy based on observable market data and Level 3 inputs based on customized discounting criteria. In connection with the measurement and initial recognition of the foregoing assets, the Corporation recognizes charge-offs through the allowance for loan losses. Subsequent charge-offs are recognized as an expense. The Corporation did not record any liabilities at fair value for which measurement of the fair value was made on a nonrecurring basis at September 30, 2018 . For financial assets and liabilities measured at fair value on a recurring basis, there were no transfers of financial assets or liabilities between Level 1 and Level 2 during the period ending September 30, 2018 . The following table presents additional quantitative information about Level 3 assets measured at fair value on a nonrecurring basis:    (Dollars in Thousands) Quantitative Information about Level 3 Fair Value Measurements  Range  September 30, 2018 Fair Value Valuation Technique Unobservable Input (Weighted Average)  Impaired loans (1) $ 2,925 Appraisal Appraisal Adjustments (2) 0% -50% ( 45% )  Cost to sell   December 31, 2017 Fair Value Valuation Technique Unobservable Input Weighted Average  Other real estate owned (1) $ 90 Appraisal Cost to sell 8%   (1) Includes assets directly charged-down to fair value during the year-to-date period.  (2) Qualitative adjustments are discounts specific to each asset and are made as needed.

Capital Ratios

Capital Ratios	9 Months Ended
	Sep. 30, 2018
Capital Ratios [Abstract]
Capital Ratios	Note 10. Capital Ratios Capital adequacy is currently defined by regulatory agencies through the use of several minimum required ratios. In July 2013, Federal banking regulators approved the final rules from the Basel Committee on Banking Supervision for the regulation of capital requirements for bank holding companies and U.S banks, generally referred to as “Basel III.” The Basel III standards were effective for the Corporation and the Bank, effective January 1, 2015 (subject to a phase-in period for certain provisions). Basel III imposes significantly higher capital requirements and more restrictive leverage and liquidity ratios than those previously in place. The capital ratios to be considered “well capitalized” under Basel III are: (1) Common Equity Tier 1 (CET1) of 6.5% , (2) Tier 1 Leverage of 5% , (3) Tier 1 Risk-Based Capital of 8% , and (4) Total Risk-Based Capital of 10% . The CET1 ratio is a new capital ratio under Basel III and the Tier 1 risk-based capital ratio of 8% has been increased from 6% . The rules also include changes in the risk weights of certain assets to better reflect credit and other risk exposures. In addition, a capital conservation buffer will be phased-in beginning January 1, 2016 at 0.625% , 1.25% for 2017, 1.875% for 2018 and 2.50% for 2019 and thereafter. The capital conservation buffer will be applicable to all of the capital ratios except for the Tier1 Leverage ratio. The capital conservation buffer is equal to the lowest value of the three applicable capital ratios less the regulatory minimum for each respective capital measurement. The Bank’s capital conservation buffer at September 30, 2018 was 6.8 9 % (total risk-based capital 14.8 9 % less 8.00%) compared to the 2018 regulatory buffer of 1.875%. Complianc e with the capital conservation buffer is required in order to avoid limitations to certain capital distributions. As of September 30, 2018 , the Bank was “well capitalized’ under the Basel III requirements and believes it would be “well capitalized” on a fully phased - in basis had such a requirement been in effect. The following table summarizes regulatory capital information as of September 30, 2018 and December 31, 2017 for the Corporation and the Bank:    Regulatory Ratios  Adequately Well  September 30, December 31, Capitalized Capitalized  (Dollars in thousands) 2018 2017 Minimum Minimum   Common Equity Tier 1 Risk-based Capital Ratio (1)  Franklin Financial Services Corporation 13.64% 14.06% 4.500% N/A  Farmers & Merchants Trust Company 13.42% 13.93% 4.500% 6.50%   Tier 1 Risk-based Capital Ratio (2)  Franklin Financial Services Corporation 13.64% 14.06% 6.000% N/A  Farmers & Merchants Trust Company 13.42% 13.93% 6.000% 8.00%   Total Risk-based Capital Ratio (3)  Franklin Financial Services Corporation 14.89% 15.31% 8.000% N/A  Farmers & Merchants Trust Company 14.68% 15.19% 8.000% 10.00%   Tier 1 Leverage Ratio (4)  Franklin Financial Services Corporation 9.59% 9.73% 4.000% N/A  Farmers & Merchants Trust Company 9.48% 9.64% 4.000% 5.00%   (1) Common equity Tier 1 capital/ total risk-weighted assets (2) Tier 1 capital / total risk-weighted assets  (3) Total risk-based capital / total risk-weighted assets, (4) Tier 1 capital / average quarterly assets

Revenue Recognition

Revenue Recognition	9 Months Ended
	Sep. 30, 2018
Revenue Recognition [Abstract]
Revenue Recognition	Note 11. Revenue Recognition The Corporation adopted ASC 606 on January 1, 2018 using the modified retrospective approach applied to all contracts initiated on or after the effective date, and for contracts which have remaining obligations as of the effective date. Results for the reporting period beginning January 1, 2018 are presented under ASC 606 while the prior period results continue to be reported under legacy GAAP. Adoption of the standard did not have a material effect on any of the reported periods. The Corporation did not record a cumulative effect adjustment to the beginning retained earnings balance as of January 1, 2018 from the adoption of ASC 606 as it was determined the transition adjustment was immaterial to Corporation’s consolidated financial statements. All of the Corporation’s revenue from contracts with customers within the scope of ASC 606 is recognized in non-interest income as presented in our consolidated statements of income. Revenue generating activities that fall within the scope of ASC 606 are described as follows: Investment and Trust Service Fees - these represent fees from wealth management (assets under management), fees from the management and settlement of estates and commissions from the sale of investment and insurance products. · Asset management fees are generally assessed based on a tiered fee schedule, based on the value of assets under management, and are recognized monthly when the service obligation is completed. Fees recognized were $ 3 . 8 million for the first nine months of 2018 and $1.3 million for the third quarter of 2018. · Fees for estate management services are based on the estimated fair value of the estate. These fees are generally recognized monthly over an 18 month period that Management has determined to represent the average time to fulfill the performance obligations of the contract. Management has the discretion to adjust this time period as needed based upon the nature and complexity of an individual estate. Fees recognized were $ 228 thousand for the first nine months of 2018 and $ 86 thousand for the third quarter of 2018. · Commissions from the sale of investment and insurance products are recognized upon the completion of the transaction. Fees recognized were $ 218 thousand for the first nine months of 2018 and $7 5 thousand for the third quarter of 2018. Loan Service Charges – these represent fees on loans for services or charges that occur after the loan has been booked, for example, late payment fees. These also include fees for mortgages settled for a third party mortgage company. All of these fees are transactional in nature and are recognized upon completion of the transaction which represents the performance obligation. Deposit Service Charges and Fee s – these represent fees from deposit customers for transaction based, account maintenance, and overdraft services. Transaction based fees include, but are not limited to stop payment fees and overdraft fees. These fees are recognized at the time of the transaction when the performance obligation has been fulfilled. Account maintenance fees and account analysis fee are earned over the course of a month, representing the period of the performance obligation, and are recognized monthly. Debit Card Income – this represents interchange fees from cardholder transactions conducted through the card payment network. Cardholders use the debit card to conduct point-of-sale transactions that produce interchange fees. The fees are transaction based and the fee is recognized with the processing of the transaction. These fees are reported net of cardholder rewards. Other Service Charges and Fees – these are comprised primarily of merchant card fees, credit card fees, ATM surcharges and interchange fees and wire transfer fees. Merchant card fees represent fees the Bank earns from a third party for enrolling a customer in the processor’s program. Credit card fees represent a fee earned by the Bank for a successful referral to a card-issuing company. ATM surcharges and interchange fees are the result of Bank customers conducting ATM transactions that generate fee income and are processed through multiple card networks. All of these fees are transaction based and are recognized at the time of the transaction. Gains/Losses on the Sale of Other Real Estate – these are recognized when control of the property transfers to the buyer. Increases in the cash surrender value of life insurance and security transactions are not within the scope of ASC 606. Contract Balances A contract asset balance occurs when an entity performs a service for a customer before the customer pays consideration (resulting in a contract receivable) or before payment is due (resulting in a contract asset). A contract liability balance is an entity’s obligation to transfer a service to a customer for which the entity has already received payment (or payment is due) from the customer. The Company’s noninterest revenue streams are largely based on transactional activity, or standard month-end revenue accruals such as asset management fees based on month-end market values. Consideration is often received immediately or shortly after the Company satisfies its performance obligation and revenue is recognized. The Company does not typically enter into longer-term revenue contracts with customers, and therefore, does not experience significant contract balances. Contract Acquisition Costs The Corporation expenses all contract acquisition costs as costs are incurred. 

Commitments And Contingencies

Commitments And Contingencies	9 Months Ended
	Sep. 30, 2018
Commitments And Contingencies [Abstract]
Commitments And Contingencies	1 Note 12. Commitments and Contingencies In the normal course of business, the Bank is a party to financial instruments that are not reflected in the accompanying financial statements and are commonly referred to as off-balance-sheet instruments. These financial instruments are entered into primarily to meet the financing needs of the Bank’s customers and include commitments to extend credit and standby letters of credit. Those instruments involve, to varying degrees, elements of credit and interest rate risk not recognized in the consolidated balance sheet. The Corporation’s exposure to credit loss in the event of nonperformance by other parties to the financial instruments for commitments to extend credit and standby letters of credit is represented by the contract or notional amount of those instruments. The Bank uses the same credit policies in making commitments and conditional obligations as they do for on-balance-sheet instruments. The Bank had the following outstanding commitments for the periods presented:    September 30, December 31,  (Dollars in thousands) 2018 2017  Financial instruments whose contract amounts represent credit risk  Commercial commitments to extend credit $ 226,069 $ 249,526  Consumer commitments to extend credit (secured) 46,166 44,866  Consumer commitments to extend credit (unsecured) 5,663 5,668  $ 277,898 $ 300,060  Standby letters of credit $ 25,692 $ 28,630  Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses with the exception of home equity lines and personal lines of credit and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Bank evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Bank, is based on Management’s credit evaluation of the counterparty. Collateral for most commercial commitments varies but may include accounts receivable, inventory, property, plant, and equipment, and income-producing commercial properties. Collateral for secured consumer commitments consists of liens on residential real estate. Standby letters of credit are instruments issued by the Bank, which guarantee the beneficiary payment by the Bank in the event of default by the Bank’s customer in the nonperformance of an obligation or service. Most standby letters of credit are extended for one-year periods. Generally, the credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. The Bank holds collateral supporting those commitments for which collateral is deemed necessary primarily in the form of certificates of deposit and liens on real estate. Management believes that the proceeds obtained through a liquidation of such collateral would be sufficient to cover the maximum potential amount of future payments required under the corresponding guarantees. As of June 30, 2018, the Bank established a $2.4 million allowance against letters of credit issued in connection with a commercial borrower that declared bankruptcy in the second quarter as a result of apparent fraudulent activities within the business. Except for the liability recorded for standby letters of credit, liabilities for credit loss associated with off-balance sheet commitments were not material at September 30, 2018 and December 31, 2017. Most of the Bank’s business activity is with customers located within its primary market and does not involve any significant concentrations of credit to any one entity or industry. Legal Proceedings The nature of the Corporation’s business generates a certain amount of litigation. We establish accruals for legal proceedings when information related to the loss contingencies represented by those matters indicates both that a loss is probably and the amount of the loss can be reasonably estimated. When we are able to do so, we also determine estimates of possible losses, whether in excess of any accrued liability or where there is no accrued liability. These assessments are based on our analysis of currently available information and are subject to significant judgment and a variety of assumptions and uncertainties. As new information is obtained, we may change our assessments and, as a result, take or adjust the amounts of our accruals and change our estimates of possible losses or ranges of possible losses. Due to the inherent subjectivity of the assessments and the unpredictability of outcomes of legal proceedings, any amounts that may be accrued or included in estimates of possible losses or ranges of possible losses may not represent the actual loss to the Corporation from any legal proceeding. Our exposure and ultimate losses may be higher, possibly significantly higher, than amounts we may accrue or amounts we may estimate. In management’s opinion, we do not anticipate, at the present time, that the ultimate aggregate liability, if any, arising out of all litigation to which the Corporation is a party will have a material adverse effect on our financial position. We cannot now determine, however, whether or not any claim asserted against us, other than the Kalan case described below, will have a material adverse effect on our results of operations in any future reporting period, which will depend on, amount other things, the amount of loss resulting from the claim and the amount of income otherwise reported for the reporting period. Thus, at June 30, 2018, we are unable to provide an evaluation of the likelihood of an unfavorable outcome or an estimate of the amount or range of potential loss with respect to such other matters and, accordingly, have not yet established any specific accrual for such other matters, except in connection with the Kalan case described below. No material proceedings are pending or are known to be threatened or contemplated against us by governmental authorities. On July 31, 2018, the court entered an order granting final approval of the settlement agreements in the Kalan et al. v. Farmers and Merchants Trust Company of Chambersburg et al. (Case No. 2:15-CV-01435-WB) case filed against F&M Trust in the United States District Court for the Eastern District of Pennsylvania in March, 2015. Among other things, the order also dismissed the case against F&M Trust with prejudice; certified the settlement class; and, permanently enjoined the named plaintiffs and the members of the settlement class from asserting any further claims arising out of or related to the claims alleged or that could have been alleged in the case against F&M Trust. The settlement agreements provide for the Bank to make a settlement payment of $10 million in full and final settlement of all such claims. The settlement agreements further provide for general releases by all parties. F&M Trust made the settlement payment in May, 2018, in accordance with the court’s earlier order preliminarily approving the settlement agreements. The settlement payment was funded out of available assets. The Corporation previously accrued the $10 million settlement payment in the Kalan case as an expense for the year ended December 31, 2017.

Basis Of Presentation (Policy)

Basis Of Presentation (Policy)	9 Months Ended
	Sep. 30, 2018
Basis Of Presentation [Abstract]
Consolidation	 The consolidated financial statements include the accounts of Franklin Financial Services Corporation (the Corporation), and its wholly-owned subsidiaries, Farmers and Merchants Trust Company of Chambersburg (the Bank) and Franklin Future Fund Inc. Farmers and Merchants Trust Company of Chambersburg is a commercial bank that has one wholly-owned subsidiary, Franklin Financial Properties Corp. Franklin Financial Properties Corp. holds real estate assets that are leased by the Bank. Franklin Future Fund Inc. is a non-bank investment company. The activities of non-bank entities are not significant to the consolidated totals. All significant intercompany transactions and account balances have been eliminated. In the opinion of management, all adjustments (which include only normal recurring adjustments) necessary to present fairly the consolidated financial position, results of operations, and cash flows as of September 30, 2018 , and for all other periods presented have been made. Certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted. It is suggested that these consolidated financial statements be read in conjunction with the audited consolidated financial statements and notes thereto included in the Corporation’s 2017 Annual Report on Form 10-K. The consolidated results of operations for the nine month period ended September 30, 2018 are not necessarily indicative of the operating results for the full year. Management has evaluated subsequent events for potential recognition and/or disclosure through the date these consolidated financial statements were issued. The consolidated balance sheet at December 31, 2017 has been derived from the audited consolidated financial statements at that date, but does not include all of the information and footnotes required by GAAP for complete consolidated financial statements. For purposes of reporting cash flows, cash and cash equivalents include cash and due from banks, interest-bearing deposits in other banks and federal funds sold. Generally, federal funds are purchased and sold for one-day periods.
Earnings Per Share	Earnings per share are computed based on the weighted average number of shares outstanding during each period end. A reconciliation of the weighted average shares outstanding used to calculate basic earnings per share and diluted earnings per share follows:     For the Three Months Ended For the Nine Months Ended  September 30, September 30,  (Dollars and shares in thousands, except per share data) 2018 2017 2018 2017  Weighted average shares outstanding (basic) 4,391 4,343 4,375 4,332  Impact of common stock equivalents 21 21 24 21  Weighted average shares outstanding (diluted) 4,412 4,364 4,399 4,353  Anti-dilutive options excluded from calculation — — — —  Net income $ 4,000 $ 3,076 $ 2,321 $ 9,439  Basic earnings per share $ 0.91 $ 0.71 $ 0.53 $ 2.18  Diluted earnings per share $ 0.91 $ 0.70 $ 0.53 $ 2.17 

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Policy)	9 Months Ended
	Sep. 30, 2018
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements, Policy	  Standard Description Effective Date Effect on the financial statements or other significant matters   ASU 2018-02, Income Statement (Topic 220), Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income Under ASU 2018-02, entities are allowed, but not required, to reclassify from Accumulated Other Comprehensive Income (AOCI) to retained earnings stranded tax effects resulting from the new federal corporate income tax rate of the Tax Cuts and Jobs Act (the Act). The reclassification could include other stranded tax effects that related to the Act but do not directly related to the change in the federal rate. Tax effects that are stranded in AOCI for other reasons may not be reclassified. Entities also will have an option to adopt the standard retrospectively or in the period of adoption. January 1, 2018 The Corporation adopted the provisions of the ASU in the fourth quarter of 2017. The Company reclassified the disproportionate tax effect resulting from the Act by increasing retained earnings by $992 thousand and reducing AOCI by $992 thousand.   ASU 2016-15, Statements of Cash Flow (Topic 320): Classification of Certain Cash Receipts and Cash Payments The standard clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The amendments are intended to reduce diversity in practice. The standard contains additional guidance clarifying when an entity should separate cash receipts and cash payments and classifies them into more than one class of cash flows (including when reasonable judgement is required to estimate and allocate cash flows) versus when an entity should classify the aggregate amount into one class of cash flows on the basis of predominance. January 1, 2018 The Corporation adopted the provisions of the ASU on January 1, 2018 and it had no material effect on the consolidated financial statements.   ASU 2017-07, Employee Benefits Plan (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost This standard requires an employer to report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations. The amendments in this update also allow only the service cost component to be eligible for capitalization when applicable. January 1, 2018 The Corporation adopted the provisions of the ASU on January 1, 2018 and it had no material effect on the consolidated financial statements. The service cost is reported in Salaries and Benefits expense and the nonservice cost is included in Other Expense on the Consolidated Statement of Income, which totaled $107 thousand and was reclassified for the first nine months of 2017.   ASU 2014-09, Revenue from Contracts with Customers (Topic 606) The amendments in this Update (ASU 2014-09) establish a comprehensive revenue recognition standard. The revenue standard’s core principle is built on the contract between a vendor and a customer for the provision of goods and services. It attempts to depict the exchange of rights and obligations between the parties in the pattern of revenue recognition based on the consideration to which the vendor is entitled. To accomplish this objective, the standard requires five basic steps: (i) identify the contract with the customer, (ii) identify the performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract, and (v) recognize revenue when (or as) the entity satisfies a performance obligation. Three basic transition methods are available – full retrospective, retrospective with certain practical expedients, and a cumulative effect approach. January 1, 2018 The Corporation adopted this ASU on January 1, 2018, on a modified retrospective approach, and it did not have a material effect on the Corporation's consolidated financial statements. See Note 11. Revenue Recognition for more information.   ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities The standard amends the guidance on the classification and measurement of financial instruments. Some of the amendments include the following: 1) requires equity investments to be measured at fair value with changes in fair value recognized in net income; 2) simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment; 3) requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; and 4) requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value; among others. January 1, 2018 The Corporation adopted the provisions of the ASU on January 1, 2018 and it had no material effect on the consolidated financial statements. The Corporation reclassified the fair value of equity securities by increasing retained earnings by $201 thousand and decreasing AOCI by $201 thousand. In addition, according to the standard, the Corporation measured the fair value of the loan portfolio beginning March 31, 2018 using an exit price notion. See Note 9. Fair Value Measurements and Fair Values of Financial Instruments for more information.   ASU 2016-02, Leases (Topic 842) From the lessee’s perspective, the new standard established a right-of-use (ROU) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement for lessees. From the lessor’s perspective, the new standard requires a lessor to classify leases as either sales-type, finance or operating. A lease will be treated as a sale if it transfers all of the risks and rewards, as well as control of the underlying asset, to the lessee. If risks and rewards are conveyed without the transfer of control, the lease is treated as financing. If the lessor doesn’t convey risks and rewards or control, an operating lease results. January 1, 2019 The Corporation currently has real estate and equipment leases that it classifies as operating leases that are not recognized on the balance sheet. Under the new standard, these leases will move onto the balance sheet in the form of a lease liability (the present value of a lessee's obligation to make lease payments) and a right-of-use asset (an asset that represents the lessee's right to use a specified asset for the lease term). The offsetting transactions will gross-up the Consolidated Balance Sheet. The Corporation has identified all of its leases (approximately 63, primarily equipment and property leases), but has not determined the effect on the Consolidated Balance Sheet. The Corporation has acquired a lease accounting model to implement the standard to be used in a test mode during 2018. The Corporation expects to adopt the standard using the modified retrospective approach and elect the transition options of ASU 2018-11. The Corporation currently expects that the new standard will not have a material effect on its consolidated results of operations.   ASU 2018-11, Leases - Targeted Improvements (Topic 842) This guidance provides entities with relief from the costs of implementing certain aspects of the new leasing standard, ASU No. 2016-02. Specifically, under the amendments in ASU 2018-11: (1) entities may elect not to recast the comparative periods presented when transitioning to the new leasing standard, and (2) lessors may elect not to separate lease and non-lease components when certain conditions are met. The amendments have the same effective date as ASU 2016-02 (January 1, 2019 for the Corporation).   ASU 2018-15, Accounting for Implementation Costs in a Cloud Computing Arrangement (Topic 350) This ASU required an entity in a cloud computing arrangement (i.e., hosting arrangement) that is a service contract to follow the internal-use software guidance in ASC 350-40 to determine which implementation costs to capitalize as assets or expense as incurred. Capitalized implementation costs should be presented in the same line item on the balance sheet as amounts prepaid for the hosted service, if any (generally as an "other asset"). The capitalized costs will be amortized over the term of the hosting arrangement, with the amortization expense being presented in the same income statement line item as the fees paid for the hosted service. January 1, 2019 The Corporation is reviewing its internal accounting procedures for this implementation. The Corporation does not expect the standard will have a material effect on its consolidated results of operations.   ASU 2018-13, Disclosure Framework (Topic 820) This guidance eliminates, adds and modifies certain disclosure requirements for fair value measurements. Among the changes, entities will no longer be required to disclose the amount of and reason for transfers between Level 1 and Level 2 of the fair value hierarchy, but will be required to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. January 1, 2019 The Corporation is reviewing its financial reporting procedures for this implementation. The Corporation does not expect the standard will have a material effect on its consolidated results of operations.   ASU 2017-04, Goodwill (Topic 350) This guidance, among other things, removes step 2 of the goodwill impairment test thus eliminating the need to determine the fair value of individual assets and liabilities of the reporting unit. Upon adoption of this standard, goodwill impairment will be the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. This may result in more or less impairment being recognized than under the current guidance. Early adoption is permitted for any impairment tests performed after January 1, 2017, applied prospectively. January 1, 2020 The Corporation expects to early adopt the ASU in the fourth quarter of 2018 with the completion of the 2018 impairment analysis. We do not expect this guidance to have a material effect on the Corporation's consolidated financial statements based upon the prior goodwill impairment analysis.   ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments This standard requires credit losses on most financial assets measured at amortized cost and certain other instruments to be measured using an expected credit loss model (referred to as the current expected credit loss (CECL) model). Under this model, entities will estimate credit losses over the entire contractual term of the instrument (considering estimated prepayments, but not expected extensions or modifications unless reasonable expectation of a troubled debt restructuring exists) from the date of initial recognition of that instrument. The ASU replaces the current accounting model for purchased credit impaired loans and debt securities. The allowance for credit losses for purchased financial assets with a more-than insignificant amount of credit deterioration since origination (“PCD assets”), should be determined in a similar manner to other financial assets measured on an amortized cost basis. However, upon initial recognition, the allowance for credit losses is added to the purchase price (“gross up approach”) to determine the initial amortized cost basis. The subsequent accounting for PCD financial assets is the same expected loss model described above. January 1, 2020 We have formed an implementation team led by the Corporation's Risk Management function. The team is reviewing the requirements of the ASU and evaluating methods and models for implementation. The new standard will result in earlier recognition of additions to the allowance for loan losses and possibly a larger allowance for loan loss balance with a corresponding increase in the provision for loan losses in results of operations; however, the Corporation is continuing to evaluate the impact of the pending adoption of the new standard on its consolidated financial statements. A third-party vendor has been selected to assist with the CECL calculations and the implementation process has started. The Corporation expects to be able to run the CECL model in test mode starting near the end of the first quarter of 2019. 

Basis Of Presentation (Tables)

Basis Of Presentation (Tables)	9 Months Ended
	Sep. 30, 2018
Basis Of Presentation [Abstract]
Schedule Of Earnings Per Share, Basic And Diluted	  For the Three Months Ended For the Nine Months Ended  September 30, September 30,  (Dollars and shares in thousands, except per share data) 2018 2017 2018 2017  Weighted average shares outstanding (basic) 4,391 4,343 4,375 4,332  Impact of common stock equivalents 21 21 24 21  Weighted average shares outstanding (diluted) 4,412 4,364 4,399 4,353  Anti-dilutive options excluded from calculation — — — —  Net income $ 4,000 $ 3,076 $ 2,321 $ 9,439  Basic earnings per share $ 0.91 $ 0.71 $ 0.53 $ 2.18  Diluted earnings per share $ 0.91 $ 0.70 $ 0.53 $ 2.17 

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Sep. 30, 2018
Accumulated Other Comprehensive Loss [Abstract]
Schedule Of Accumulated Other Comprehensive Loss	   September 30, December 31,  2018 2017  (Dollars in thousands)  Net unrealized (losses) gains on debt securities $ (2,077) $ 154  Tax effect 436 (33)  Net of tax amount (1,641) 121   Accumulated pension adjustment (7,784) (7,784)  Tax effect 1,635 1,635  Net of tax amount (6,149) (6,149)   Total accumulated other comprehensive loss $ (7,790) $ (6,028) 

Investments (Tables)

Investments (Tables)	9 Months Ended
	Sep. 30, 2018
Investments [Abstract]
Unrealized Gain (Loss) On Investments	    (Dollars in thousands) Gross Gross  Amortized unrealized unrealized Fair  September 30, 2018 cost gains losses value  U.S. Government and Agency securities $ 9,405 $ 15 $ (144) $ 9,276  Municipal securities 63,221 176 (994) 62,403  Trust preferred securities 4,069 — (122) 3,947  Agency mortgage-backed securities 46,394 39 (1,063) 45,370  Private-label mortgage-backed securities 474 43 — 517  Asset-backed securities 3,917 — (27) 3,890  $ 127,480 $ 273 $ (2,350) $ 125,403       (Dollars in thousands) Gross Gross  Amortized unrealized unrealized Fair  December 31, 2017 cost gains losses value  Equity securities $ 164 $ 201 $ — $ 365  U.S. Government and Agency securities 11,451 64 (43) 11,472  Municipal securities 57,374 650 (252) 57,772  Trust preferred securities 6,000 — (183) 5,817  Agency mortgage-backed securities 51,307 197 (567) 50,937  Private-label mortgage-backed securities 858 88 — 946  Asset-backed securities 28 — (1) 27  $ 127,182 $ 1,200 $ (1,046) $ 127,336 
Amortized Cost And Fair Value Of Debt Securities, By Contractual Maturity	   (Dollars in thousands) Amortized cost Fair value  Due in one year or less $ 14,466 $ 14,508  Due after one year through five years 33,277 33,081  Due after five years through ten years 31,927 31,026  Due after ten years 942 901  80,612 79,516  Mortgage-backed securities 46,868 45,887  $ 127,480 $ 125,403 
Composition Of Net Realized Securities Gains	  For the Three Months Ended For the Nine Months Ended  September 30, September 30,  (Dollars in thousands) 2018 2017 2018 2017  Gross gains realized $ 5 $ 1 $ 67 $ 3  Gross losses realized — — (11) —  Net gains realized $ 5 $ 1 $ 56 $ 3 
Schedule Of Unrealized Loss On Investments	   September 30, 2018  Less than 12 months 12 months or more Total  Fair Unrealized Fair Unrealized Fair Unrealized  (Dollars in thousands) Value Losses Count Value Losses Count Value Losses Count   U.S. Government and Agency securities $ 4,011 $ (54) 5 $ 4,381 $ (90) 12 $ 8,392 $ (144) 17  Municipal securities 28,938 (520) 47 13,014 (474) 23 41,952 (994) 70  Trust preferred securities 2,102 (62) 3 1,845 (60) 2 3,947 (122) 5  Agency mortgage-backed securities 18,326 (311) 40 22,996 (752) 53 41,322 (1,063) 93  Asset-backed securities 3,886 (26) 6 4 (1) 1 3,890 (27) 7  Total temporarily impaired securities $ 57,263 $ (973) 101 $ 42,240 $ (1,377) 91 $ 99,503 $ (2,350) 192       December 31, 2017  Less than 12 months 12 months or more Total  Fair Unrealized Fair Unrealized Fair Unrealized  (Dollars in thousands) Value Losses Count Value Losses Count Value Losses Count   U.S. Government and Agency securities $ 2,315 $ (11) 5 $ 3,528 $ (32) 10 $ 5,843 $ (43) 15  Municipal securities 13,767 (89) 22 7,507 (163) 14 21,274 (252) 36  Trust preferred securities 1,216 (12) 2 4,601 (171) 5 5,817 (183) 7  Agency mortgage-backed securities 16,287 (129) 29 20,563 (438) 39 36,850 (567) 68  Asset-backed securities — — — 4 (1) 1 4 (1) 1  Total temporarily impaired securities $ 33,585 $ (241) 58 $ 36,203 $ (805) 69 $ 69,788 $ (1,046) 127  
Other Than Temporary Impairment, Credit Losses Recognized In Earnings	   Nine Months Ended  (Dollars in thousands) September 30,  2018 2017  Balance of cumulative credit-related OTTI at January 1 $ 595 $ 595  Additions for credit-related OTTI not previously recognized — —  Additional increases for credit-related OTTI previously recognized when there is  no intent to sell and no requirement to sell before recovery of amortized cost basis — —  Decreases for previously recognized credit-related OTTI because there was an intent to sell (323) —  Reduction for increases in cash flows expected to be collected — —  Balance of credit-related OTTI at September 30 $ 272 $ 595  

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2018
Loans [Abstract]
Schedule Of Loans Outstanding	   September 30, December 31,  (Dollars in thousands) 2018 2017  Residential Real Estate 1-4 Family  Consumer first liens $ 90,029 $ 97,159  Commercial first lien 60,142 61,275  Total first liens 150,171 158,434   Consumer junior liens and lines of credit 43,044 45,043  Commercial junior liens and lines of credit 5,040 5,328  Total junior liens and lines of credit 48,084 50,371  Total residential real estate 1-4 family 198,255 208,805   Residential real estate - construction  Consumer 2,779 1,813  Commercial 9,510 8,088  Total residential real estate construction 12,289 9,901   Commercial real estate 475,838 428,428  Commercial 279,835 291,519  Total commercial 755,673 719,947   Consumer 4,766 5,047  970,983 943,700  Less: Allowance for loan losses (12,526) (11,792)  Net Loans $ 958,457 $ 931,908   Included in the loan balances are the following:  Net unamortized deferred loan costs $ 73 $ 98   Loans pledged as collateral for borrowings and commitments from:  FHLB $ 762,292 $ 737,313  Federal Reserve Bank 34,685 35,740  $ 796,977 $ 773,053 

Loan Quality and Allowance fo_2

Loan Quality and Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2018
Loan Quality And Allowance for Loan Losses [Abstract]
Allowance For Loan Losses, By Loan Segment	The following table presents, by c l ass , the activity in the Allowance for Loan Losses (ALL) for the periods shown :    Residential Real Estate 1-4 Family  First Junior Liens & Commercial  (Dollars in thousands) Liens Lines of Credit Construction Real Estate Commercial Consumer Unallocated Total   ALL at June 30, 2018 $ 1,022 $ 318 $ 282 $ 7,028 $ 2,233 $ 107 $ 1,492 $ 12,482  Charge-offs — — — — (208) (23) — (231)  Recoveries — — — 1 19 5 — 25  Provision (16) (4) (4) 242 122 12 (102) 250  ALL at September 30, 2018 $ 1,006 $ 314 $ 278 $ 7,271 $ 2,166 $ 101 $ 1,390 $ 12,526   ALL at December 31, 2017 $ 1,060 $ 330 $ 224 $ 6,526 $ 2,110 $ 105 $ 1,437 $ 11,792  Charge-offs — — — — (8,944) (78) — (9,022)  Recoveries 1 — — 17 135 24 — 177  Provision (55) (16) 54 728 8,865 50 (47) 9,579  ALL at September 30, 2018 $ 1,006 $ 314 $ 278 $ 7,271 $ 2,166 $ 101 $ 1,390 $ 12,526   ALL at June 30, 2017 $ 1,075 $ 322 $ 281 $ 6,052 $ 2,023 $ 100 $ 1,454 $ 11,307  Charge-offs — — — (9) (6) (31) — (46)  Recoveries 1 5 — 17 5 4 — 32  Provision (15) (3) (42) 198 (19) 19 112 250  ALL at September 30, 2017 $ 1,061 $ 324 $ 239 $ 6,258 $ 2,003 $ 92 $ 1,566 $ 11,543   ALL at December 31, 2016 $ 1,105 $ 323 $ 224 $ 6,109 $ 1,893 $ 100 $ 1,321 $ 11,075  Charge-offs (13) — — (14) (8) (83) — (118)  Recoveries 2 6 — 17 111 30 — 166  Provision (33) (5) 15 146 7 45 245 420  ALL at September 30, 2017 $ 1,061 $ 324 $ 239 $ 6,258 $ 2,003 $ 92 $ 1,566 $ 11,543  T he following table presents, by c la ss , loans that were evaluated for the ALL under the specific reserve (individually) and those that were evaluated under the general reserve (collectively) and the amount of the ALL established in each class as of September 30, 2018 and December 31, 2017 :     Residential Real Estate 1-4 Family  First Junior Liens & Commercial  (Dollars in thousands) Liens Lines of Credit Construction Real Estate Commercial Consumer Unallocated Total   September 30, 2018  Loans evaluated for ALL:  Individually $ 408 $ — $ 460 $ 10,574 $ 3,106 $ — $ — $ 14,548  Collectively 149,763 48,084 11,829 465,264 276,729 4,766 — 956,435  Total $ 150,171 $ 48,084 $ 12,289 $ 475,838 $ 279,835 $ 4,766 $ — $ 970,983   ALL established for loans evaluated:  Individually $ — $ — $ — $ — $ 181 $ — $ — $ 181  Collectively 1,006 314 278 7,271 1,985 101 1,390 12,345  ALL at September 30, 2018 $ 1,006 $ 314 $ 278 $ 7,271 $ 2,166 $ 101 $ 1,390 $ 12,526   December 31, 2017  Loans evaluated for ALL:  Individually $ 459 $ — $ 466 $ 10,981 $ — $ — $ — $ 11,906  Collectively 157,975 50,371 9,435 417,447 291,519 5,047 — 931,794  Total $ 158,434 $ 50,371 $ 9,901 $ 428,428 $ 291,519 $ 5,047 $ — $ 943,700   ALL established for loans evaluated:  Individually $ — $ — $ — $ — $ — $ — $ — $ —  Collectively 1,060 330 224 6,526 2,110 105 1,437 11,792  ALL at December 31, 2017 $ 1,060 $ 330 $ 224 $ 6,526 $ 2,110 $ 105 $ 1,437 $ 11,792 
Impaired Financing Receivables	The following table shows additional information about those loans considered to be impaired at September 30, 2018 and December 31, 2017 :     Impaired Loans  With No Allowance With Allowance  (Dollars in thousands) Unpaid Unpaid  Recorded Principal Recorded Principal Related  September 30, 2018 Investment Balance Investment Balance Allowance  Residential Real Estate 1-4 Family  First liens $ 754 $ 870 $ — $ — $ —  Junior liens and lines of credit 66 66 — — —  Total 820 936 — — —  Residential real estate - construction 460 531 — — —  Commercial real estate 10,715 11,248 — — —  Commercial 3,082 10,653 181 181 181  Total $ 15,077 $ 23,368 $ 181 $ 181 $ 181      December 31, 2017  Residential Real Estate 1-4 Family  First liens $ 869 $ 950 $ — $ — $ —  Junior liens and lines of credit — — — — —  Total 869 950 — — —  Residential real estate - construction 466 531 — — —  Commercial real estate 11,061 11,541 — — —  Commercial 187 201 — — —  Total $ 12,583 $ 13,223 $ — $ — $ —  The following table shows the average of impaired loans and related interest income for the three and nine months ended September 30, 2018 and 2017 :    Three Months Ended Nine Months Ended  September 30, 2018 September 30, 2018  Average Interest Average Interest  (Dollars in thousands) Recorded Income Recorded Income  Investment Recognized Investment Recognized  Residential Real Estate 1-4 Family  First liens $ 1,091 $ 10 $ 899 $ 31  Junior liens and lines of credit 268 2 750 2  Total 1,359 12 1,649 33  Residential real estate - construction 461 — 463 —  Commercial real estate 10,789 107 10,314 316  Commercial 3,465 — 5,284 —  Total $ 16,074 $ 119 $ 17,710 $ 349   Three Months Ended Nine Months Ended  September 30, 2017 September 30, 2017  Average Interest Average Interest  (Dollars in thousands) Recorded Income Recorded Income  Investment Recognized Investment Recognized  Residential Real Estate 1-4 Family  First liens $ 1,157 $ 10 $ 1,152 $ 32  Junior liens and lines of credit 54 — 85 —  Total 1,211 10 1,237 32  Residential real estate - construction 471 — 475 —  Commercial real estate 11,218 109 12,216 328  Commercial 292 — 263 —  Total $ 13,192 $ 119 $ 14,191 $ 360 
Aging Of Payments Of The Loan Portfolio	    (Dollars in thousands) Loans Past Due and Still Accruing Total  Current 30-59 Days 60-89 Days 90 Days+ Total Non-Accrual Loans  September 30, 2018  Residential Real Estate 1-4 Family  First liens $ 149,366 $ 503 $ 231 $ — $ 734 $ 71 $ 150,171  Junior liens and lines of credit 47,907 40 71 43 154 23 48,084  Total 197,273 543 302 43 888 94 198,255  Residential real estate - construction 11,359 70 400 — 470 460 12,289  Commercial real estate 468,202 2,224 3,606 — 5,830 1,806 475,838  Commercial 276,180 328 64 — 392 3,263 279,835  Consumer 4,726 39 1 — 40 — 4,766  Total $ 957,740 $ 3,204 $ 4,373 $ 43 $ 7,620 $ 5,623 $ 970,983      December 31, 2017  Residential Real Estate 1-4 Family  First liens $ 157,247 $ 485 $ 534 $ — $ 1,019 $ 168 $ 158,434  Junior liens and lines of credit 50,202 139 30 — 169 — 50,371  Total 207,449 624 564 — 1,188 168 208,805  Residential real estate - construction 9,435 — — — — 466 9,901  Commercial real estate 425,806 421 347 — 768 1,854 428,428  Commercial 291,221 111 — — 111 187 291,519  Consumer 5,017 23 7 — 30 — 5,047  Total $ 938,928 $ 1,179 $ 918 $ — $ 2,097 $ 2,675 $ 943,700 
Internal Credit Rating For The Loan Portfolio	    Pass Special Mention Substandard Doubtful  (Dollars in thousands) (1-5) (6) (7) (8) Total   September 30, 2018  Residential Real Estate 1-4 Family  First liens $ 149,741 $ — $ 430 $ — $ 150,171  Junior liens and lines of credit 48,018 — 66 — 48,084  Total 197,759 — 496 — 198,255  Residential real estate - construction 11,556 — 733 — 12,289  Commercial real estate 466,800 665 8,373 — 475,838  Commercial 275,249 — 4,586 — 279,835  Consumer 4,766 — — — 4,766  Total $ 956,130 $ 665 $ 14,188 $ — $ 970,983       December 31, 2017  Residential Real Estate 1-4 Family  First liens $ 157,395 $ — $ 1,039 $ — $ 158,434  Junior liens and lines of credit 50,371 — — — 50,371  Total 207,766 — 1,039 — 208,805  Residential real estate - construction 8,893 — 1,008 — 9,901  Commercial real estate 419,277 680 8,471 — 428,428  Commercial 289,916 — 1,603 — 291,519  Consumer 5,047 — — — 5,047  Total $ 930,899 $ 680 $ 12,121 $ — $ 943,700 
Troubled Debt Restructuring Loans	   Troubled Debt Restructurings  Within the Last 12 Months  That Have Defaulted  (Dollars in thousands) Troubled Debt Restructurings On Modified Terms  Number of Recorded Number of Recorded  Contracts Investment Performing* Nonperforming* Contracts Investment  September 30, 2018  Residential real estate - construction 1 $ 460 $ — $ 460 — $ —  Residential real estate 4 683 683 — — —  Commercial real estate 11 10,574 8,909 1,665 — —  Total 16 $ 11,717 $ 9,592 $ 2,125 — $ —    December 31, 2017  Residential real estate - construction 1 $ 466 $ 466 $ — — $ —  Residential real estate 5 737 701 36 — —  Commercial real estate 11 10,983 10,388 595 — —  Total 17 $ 12,186 $ 11,555 $ 631 — $ —  * The performing status is determined by the loan’s compliance with the modified terms .

Other Real Estate Owned (Tables

Other Real Estate Owned (Tables)	9 Months Ended
	Sep. 30, 2018
Other Real Estate Owned [Abstract]
Summary Of Changes In Other Real Estate Owned	  September 30,  (Dollars in thousands) 2018 2017  Balance at beginning of the period $ 2,598 $ 4,915  Additions 105 52  Proceeds from dispositions (32) (2,255)  Loss on sales, net — (23)  Valuation adjustment (6) (60)  Balance at the end of the period $ 2,665 $ 2,629 

Pension (Tables)

Pension (Tables)	9 Months Ended
	Sep. 30, 2018
Pension [Abstract]
Schedule Of Net Periodic Pension Costs	  Three Months Ended Nine Months Ended  September 30, September 30,  (Dollars in thousands) 2018 2017 2018 2017  Components of net periodic cost:  Service cost $ 90 $ 80 $ 270 $ 237  Interest cost 138 167 414 500  Expected return on plan assets (279) (268) (837) (804)  Recognized net actuarial loss 176 137 528 411  Net period cost $ 125 $ 116 $ 375 $ 344 

Fair Value Measurements And F_2

Fair Value Measurements And Fair Values Of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2018
Fair Value Measurements And Fair Values Of Financial Instruments [Abstract]
Fair Value, By Balance Sheet Grouping	   September 30, 2018  Carrying Fair  (Dollars in thousands) Amount Value Level 1 Level 2 Level 3  Financial assets, carried at cost:  Cash and cash equivalents $ 44,777 $ 44,777 $ 44,777 $ — $ —  Restricted stock 452 452 — 452 —  Loans held for sale 1,072 1,072 1,072  Net loans 958,457 933,824 — — 933,824  Accrued interest receivable 3,733 3,733 — 3,733 —   Financial assets, available for sale  Debt securities 125,403 125,403 — 125,403 —   Financial assets, fair value  Equity securities 383 383 383 — —   Financial liabilities:  Deposits $ 1,071,857 $ 1,071,744 $ — $ 1,071,744 $ —  Accrued interest payable 202 202 — 202 —  Off balance sheet financial instruments — — — — —   December 31, 2017  Carrying Fair  (Dollars in thousands) Amount Value Level 1 Level 2 Level 3  Financial assets:  Cash and cash equivalents $ 58,603 $ 58,603 $ 58,603 $ — $ —  Investment securities available for sale 127,336 127,336 365 126,971 —  Restricted stock 456 456 — 45 —  Loans held for sale 442 442 — 442 —  Net loans 931,908 929,891 — — 929,891  Accrued interest receivable 3,847 3,847 — 3,847 —   Financial liabilities:  Deposits $ 1,047,181 $ 1,046,476 $ — $ 1,046,476 $ —  Accrued interest payable 149 149 — 149 —  
Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis	      (Dollars in Thousands Fair Value at September 30, 2018  Asset Description Level 1 Level 2 Level 3 Total  Equity securities, at fair value $ 383 $ — $ — $ 383   Available for sale:  U.S. Government and Agency securities — 9,276 — 9,276  Municipal securities — 62,403 — 62,403  Trust Preferred Securities — 3,947 — 3,947  Agency mortgage-backed securities — 45,370 — 45,370  Private-label mortgage-backed securities — 517 — 517  Asset-backed securities — 3,890 — 3,890  Total assets $ 383 $ 125,403 $ — $ 125,786       (Dollars in Thousands) Fair Value at December 31, 2017  Asset Description Level 1 Level 2 Level 3 Total  Equity securities $ 365 $ — $ — $ 365  U.S. Government and Agency securities — 11,472 — 11,472  Municipal securities — 57,772 — 57,772  Trust Preferred Securities — 5,817 — 5,817  Agency mortgage-backed securities — 50,937 — 50,937  Private-label mortgage-backed securities — 946 — 946  Asset-backed securities — 27 — 27  Total assets $ 365 $ 126,971 $ — $ 127,336  
Schedule Of Fair Value On A Nonrecurring Basis	      (Dollars in Thousands)  Fair Value at September 30, 2018  Asset Description Level 1 Level 2 Level 3 Total  Impaired Loans (1) $ — $ — $ 2,925 $ 2,925  Total assets $ — $ — $ 2,925 $ 2,925      (Dollars in Thousands) Fair Value at December 31, 2017  Asset Description Level 1 Level 2 Level 3 Total  Other real estate owned (1) $ — $ — $ 90 $ 90  Total assets $ — $ — $ 90 $ 90 (1) Includes assets directly charged-down to fair value during the year-to-date period.
Fair Value Inputs, Assets, Quantitative Information	  (Dollars in Thousands) Quantitative Information about Level 3 Fair Value Measurements  Range  September 30, 2018 Fair Value Valuation Technique Unobservable Input (Weighted Average)  Impaired loans (1) $ 2,925 Appraisal Appraisal Adjustments (2) 0% -50% ( 45% )  Cost to sell   December 31, 2017 Fair Value Valuation Technique Unobservable Input Weighted Average  Other real estate owned (1) $ 90 Appraisal Cost to sell 8%   (1) Includes assets directly charged-down to fair value during the year-to-date period.  (2) Qualitative adjustments are discounts specific to each asset and are made as needed. 

Capital Ratios (Tables)

Capital Ratios (Tables)	9 Months Ended
	Sep. 30, 2018
Capital Ratios [Abstract]
Schedule Of The Total Risk-based, Tier 1 Risk-based And Tier 1 Leverage Requirements	  Regulatory Ratios  Adequately Well  September 30, December 31, Capitalized Capitalized  (Dollars in thousands) 2018 2017 Minimum Minimum   Common Equity Tier 1 Risk-based Capital Ratio (1)  Franklin Financial Services Corporation 13.64% 14.06% 4.500% N/A  Farmers & Merchants Trust Company 13.42% 13.93% 4.500% 6.50%   Tier 1 Risk-based Capital Ratio (2)  Franklin Financial Services Corporation 13.64% 14.06% 6.000% N/A  Farmers & Merchants Trust Company 13.42% 13.93% 6.000% 8.00%   Total Risk-based Capital Ratio (3)  Franklin Financial Services Corporation 14.89% 15.31% 8.000% N/A  Farmers & Merchants Trust Company 14.68% 15.19% 8.000% 10.00%   Tier 1 Leverage Ratio (4)  Franklin Financial Services Corporation 9.59% 9.73% 4.000% N/A  Farmers & Merchants Trust Company 9.48% 9.64% 4.000% 5.00%   (1) Common equity Tier 1 capital/ total risk-weighted assets (2) Tier 1 capital / total risk-weighted assets  (3) Total risk-based capital / total risk-weighted assets, (4) Tier 1 capital / average quarterly assets 

Commitments And Contingencies (

Commitments And Contingencies (Tables)	9 Months Ended
	Sep. 30, 2018
Commitments And Contingencies [Abstract]
Outstanding Commitments	  September 30, December 31,  (Dollars in thousands) 2018 2017  Financial instruments whose contract amounts represent credit risk  Commercial commitments to extend credit $ 226,069 $ 249,526  Consumer commitments to extend credit (secured) 46,166 44,866  Consumer commitments to extend credit (unsecured) 5,663 5,668  $ 277,898 $ 300,060  Standby letters of credit $ 25,692 $ 28,630 

Basis Of Presentation (Details)

Basis Of Presentation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Basis Of Presentation [Abstract]
Weighted average shares outstanding (basic)	4,391	4,343	4,375	4,332
Impact of common stock equivalents	21	21	24	21
Weighted average shares outstanding (diluted)	4,412	4,364	4,399	4,353
Net income	$ 4,000	$ 3,076	$ 2,321	$ 9,439
Basic earnings per share	$ 0.91	$ 0.71	$ 0.53	$ 2.18
Diluted earnings per share	$ 0.91	$ 0.70	$ 0.53	$ 2.17

Recent Accounting Pronounceme_3

Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Accounting Standards Update 2017-07 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New accounting pronouncement in accounting principle, effect of adoption quantification		$ 107
Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Tax Cuts And Jobs Act Of 2017, Reclassification From AOCI To Retained	$ 992
Cumulative adjustment for fair value of equity securities	201
Accumulated Other Comprehensive Loss [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Tax Cuts And Jobs Act Of 2017, Reclassification From AOCI To Retained	(992)
Cumulative adjustment for fair value of equity securities	$ (201)

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Loss [Abstract]
Net unrealized (losses) gains on debt securities	$ (2,077)	$ 154
Tax effect	436	(33)
Net of tax amount	(1,641)	121
Accumulated pension adjustment	(7,784)	(7,784)
Tax effect	1,635	1,635
Net of tax amount	(6,149)	(6,149)
Total accumulated other comprehensive loss	$ (7,790)	$ (6,028)

Investments (Narrative) (Detail

Investments (Narrative) (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2018USD ($)security$ / shares	Dec. 31, 2017USD ($)security
Schedule of Available-for-sale Securities [Line Items]
Restricted stock	$ 452	$ 456
Number of temporarily impaired securities | security	192	127
Unrealized Losses	$ 2,350	$ 1,046
Equity securities held | security	1
Securities pledged as collateral	$ 86,900	84,100
Equity securities	$ 383	$ 365
Federal Home Loan Bank of Pittsburgh [Member]
Schedule of Available-for-sale Securities [Line Items]
Restricted stock per share | $ / shares	$ 100
Non-Federal Home Loan Bank Of Pittsburgh [Member]
Schedule of Available-for-sale Securities [Line Items]
Restricted stock	$ 30

Investments (Unrealized Gain (l

Investments (Unrealized Gain (loss) On Investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 127,480
Gross unrealized gains	273
Gross unrealized losses	(2,350)
Available for sale	125,403	$ 126,971
Before Adoption Of ASU 2016-01 [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		127,182
Gross unrealized gains		1,200
Gross unrealized losses		(1,046)
Available for sale		127,336
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		164
Gross unrealized gains		201
Available for sale		365
U.S. Government And Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	9,405	11,451
Gross unrealized gains	15	64
Gross unrealized losses	(144)	(43)
Available for sale	9,276	11,472
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	63,221	57,374
Gross unrealized gains	176	650
Gross unrealized losses	(994)	(252)
Available for sale	62,403	57,772
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	4,069	6,000
Gross unrealized losses	(122)	(183)
Available for sale	3,947	5,817
Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	46,394	51,307
Gross unrealized gains	39	197
Gross unrealized losses	(1,063)	(567)
Available for sale	45,370	50,937
Private-Label Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	474	858
Gross unrealized gains	43	88
Available for sale	517	946
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	3,917	28
Gross unrealized losses	(27)	(1)
Available for sale	$ 3,890	$ 27

Investments (Amortized Cost And

Investments (Amortized Cost And Fair Value Of Debt Securities, By Contractual Maturity) (Details) $ in Thousands	Sep. 30, 2018USD ($)
Investments [Abstract]
Due in one year or less, Amortized cost	$ 14,466
Due after one year through five years, Amortized cost	33,277
Due after five years through ten years, Amortized cost	31,927
Due after ten years, Amortized cost	942
Amortized Cost Contractual Maturities Subtotal	80,612
Mortgage-backed securities, Amortized cost	46,868
Available-for-sale Securities, Debt Maturities, Amortized cost	127,480
Due in one year or less, Fair value	14,508
Due after one year through five years, Fair value	33,081
Due after five years through ten years, Fair value	31,026
Due after ten years, Fair value	901
Fair Value Contractual Maturities Subtotal	79,516
Mortgage-backed securities, Fair value	45,887
Available-for-sale Securities, Debt Securities, Fair Value	$ 125,403

Investments (Composition Of Net

Investments (Composition Of Net Realized Securities Gains) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Investments [Abstract]
Gross gains realized	$ 5	$ 1	$ 67	$ 3
Gross losses realized			(11)
Net gains realized	$ 5	$ 1	$ 56	$ 3

Investments (Schedule Of Unreal

Investments (Schedule Of Unrealized Loss On Investments) (Details) $ in Thousands	Sep. 30, 2018USD ($)security	Dec. 31, 2017USD ($)security
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 57,263	$ 33,585
Less than 12 months: Unrealized Losses	$ (973)	$ (241)
Less than 12 months: Count | security	101	58
12 months or more: Fair Value	$ 42,240	$ 36,203
12 months or more: Unrealized Losses	$ (1,377)	$ (805)
12 months or more: Count | security	91	69
Fair Value	$ 99,503	$ 69,788
Unrealized Losses	$ (2,350)	$ (1,046)
Count | security	192	127
U.S. Government And Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 4,011	$ 2,315
Less than 12 months: Unrealized Losses	$ (54)	$ (11)
Less than 12 months: Count | security	5	5
12 months or more: Fair Value	$ 4,381	$ 3,528
12 months or more: Unrealized Losses	$ (90)	$ (32)
12 months or more: Count | security	12	10
Fair Value	$ 8,392	$ 5,843
Unrealized Losses	$ (144)	$ (43)
Count | security	17	15
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 28,938	$ 13,767
Less than 12 months: Unrealized Losses	$ (520)	$ (89)
Less than 12 months: Count | security	47	22
12 months or more: Fair Value	$ 13,014	$ 7,507
12 months or more: Unrealized Losses	$ (474)	$ (163)
12 months or more: Count | security	23	14
Fair Value	$ 41,952	$ 21,274
Unrealized Losses	$ (994)	$ (252)
Count | security	70	36
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 2,102	$ 1,216
Less than 12 months: Unrealized Losses	$ (62)	$ (12)
Less than 12 months: Count | security	3	2
12 months or more: Fair Value	$ 1,845	$ 4,601
12 months or more: Unrealized Losses	$ (60)	$ (171)
12 months or more: Count | security	2	5
Fair Value	$ 3,947	$ 5,817
Unrealized Losses	$ (122)	$ (183)
Count | security	5	7
Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 18,326	$ 16,287
Less than 12 months: Unrealized Losses	$ (311)	$ (129)
Less than 12 months: Count | security	40	29
12 months or more: Fair Value	$ 22,996	$ 20,563
12 months or more: Unrealized Losses	$ (752)	$ (438)
12 months or more: Count | security	53	39
Fair Value	$ 41,322	$ 36,850
Unrealized Losses	$ (1,063)	$ (567)
Count | security	93	68
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 3,886
Less than 12 months: Unrealized Losses	$ (26)
Less than 12 months: Count | security	6
12 months or more: Fair Value	$ 4	$ 4
12 months or more: Unrealized Losses	$ (1)	$ (1)
12 months or more: Count | security	1	1
Fair Value	$ 3,890	$ 4
Unrealized Losses	$ (27)	$ (1)
Count | security	7	1

Investments (Other Than Tempora

Investments (Other Than Temporary Impairment, Credit Losses Recognized In Earnings) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Investments [Abstract]
Balance of cumulative credit-related OTTI at January 1	$ 595	$ 595
Additions for credit-related OTTI not previously recognized
Additional increases for credit-related OTTI previously recognized when there is no intent to sell and no requirement to sell before recovery of amortized cost basis
Decreases for previously recognized credit-related OTTI because there was an intent to sell	(323)
Reduction for increases in cash flows expected to be collected
Balance of credit-related OTTI at September 30	$ 272	$ 595

Loans (Schedule Of Loans Outsta

Loans (Schedule Of Loans Outstanding) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 970,983	$ 943,700
Less: Allowance for loan losses	(12,526)	(11,792)
Net Loans	958,457	931,908
Net unamortized deferred loan costs	73	98
Loans pledged as collateral for borrowings and commitments from: FHLB	762,292	737,313
Loans pledged as collateral for borrowings and commitments from :Federal Reserve Bank	34,685	35,740
Total	796,977	773,053
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	198,255	208,805
Residential Real Estate - Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	12,289	9,901
Less: Allowance for loan losses	(278)	(224)
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	475,838	428,428
Less: Allowance for loan losses	(7,271)	(6,526)
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	279,835	291,519
Less: Allowance for loan losses	(2,166)	(2,110)
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	755,673	719,947
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	4,766	5,047
Less: Allowance for loan losses	(101)	(105)
Consumer First Liens [Member] | Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	90,029	97,159
Consumer Junior Liens And Lines Of Credit [Member] | Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	43,044	45,043
Consumer [Member] | Residential Real Estate - Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,779	1,813
Commercial Junior Liens And Lines Of Credit [Member] | Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	5,040	5,328
Commercial [Member] | Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	60,142	61,275
Commercial [Member] | Residential Real Estate - Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	9,510	8,088
First Liens [Member] | Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	150,171	158,434
Less: Allowance for loan losses	(1,006)	(1,060)
Junior Lines And Lines Of Credit [Member] | Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 48,084	$ 50,371

Loan Quality and Allowance fo_3

Loan Quality and Allowance for Loan Losses (Allowance For Loan Losses, By Loan Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	$ 12,482	$ 11,307	$ 11,792	$ 11,075
Charge-offs	(231)	(46)	(9,022)	(118)
Recoveries	25	32	177	166
Provision	250	250	9,579	420
Allowance, Ending Balance	12,526	11,543	12,526	11,543
Loans evaluated for allowance individually	14,548		14,548		$ 11,906
Loans evaluated for allowance collectively	956,435		956,435		931,794
Total Loans	970,983		970,983		943,700
Allowance established for loans evaluated individually	181		181
Allowance established for loan evaluated collectively	12,345		12,345		11,792
Total Allowance	12,526		12,526		11,792
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loans	198,255		198,255		208,805
Residential Real Estate - Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	282	281	224	224
Provision	(4)	(42)	54	15
Allowance, Ending Balance	278	239	278	239
Loans evaluated for allowance individually	460		460		466
Loans evaluated for allowance collectively	11,829		11,829		9,435
Total Loans	12,289		12,289		9,901
Allowance established for loan evaluated collectively	278		278		224
Total Allowance	278		278		224
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	7,028	6,052	6,526	6,109
Charge-offs		(9)		(14)
Recoveries	1	17	17	17
Provision	242	198	728	146
Allowance, Ending Balance	7,271	6,258	7,271	6,258
Loans evaluated for allowance individually	10,574		10,574		10,981
Loans evaluated for allowance collectively	465,264		465,264		417,447
Total Loans	475,838		475,838		428,428
Allowance established for loan evaluated collectively	7,271		7,271		6,526
Total Allowance	7,271		7,271		6,526
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	2,233	2,023	2,110	1,893
Charge-offs	(208)	(6)	(8,944)	(8)
Recoveries	19	5	135	111
Provision	122	(19)	8,865	7
Allowance, Ending Balance	2,166	2,003	2,166	2,003
Loans evaluated for allowance individually	3,106		3,106
Loans evaluated for allowance collectively	276,729		276,729		291,519
Total Loans	279,835		279,835		291,519
Allowance established for loans evaluated individually	181		181
Allowance established for loan evaluated collectively	1,985		1,985		2,110
Total Allowance	2,166		2,166		2,110
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	107	100	105	100
Charge-offs	(23)	(31)	(78)	(83)
Recoveries	5	4	24	30
Provision	12	19	50	45
Allowance, Ending Balance	101	92	101	92
Loans evaluated for allowance collectively	4,766		4,766		5,047
Total Loans	4,766		4,766		5,047
Allowance established for loan evaluated collectively	101		101		105
Total Allowance	101		101		105
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	1,492	1,454	1,437	1,321
Provision	(102)	112	(47)	245
Allowance, Ending Balance	1,390	1,566	1,390	1,566
Allowance established for loan evaluated collectively	1,390		1,390		1,437
Total Allowance	1,390		1,390		1,437
First Liens [Member] | Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	1,022	1,075	1,060	1,105
Charge-offs				(13)
Recoveries		1	1	2
Provision	(16)	(15)	(55)	(33)
Allowance, Ending Balance	1,006	1,061	1,006	1,061
Loans evaluated for allowance individually	408		408		459
Loans evaluated for allowance collectively	149,763		149,763		157,975
Total Loans	150,171		150,171		158,434
Allowance established for loan evaluated collectively	1,006		1,006		1,060
Total Allowance	1,006		1,006		1,060
Junior Liens & Lines Of Credit [Member] | Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	318	322	330	323
Recoveries		5		6
Provision	(4)	(3)	(16)	(5)
Allowance, Ending Balance	314	$ 324	314	$ 324
Loans evaluated for allowance collectively	48,084		48,084		50,371
Total Loans	48,084		48,084		50,371
Allowance established for loan evaluated collectively	314		314		330
Total Allowance	$ 314		$ 314		$ 330

Loan Quality and Allowance fo_4

Loan Quality and Allowance for Loan Losses (Impaired Financing Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Allowance	$ 15,077		$ 15,077		$ 12,583
Unpaid Principal Balance With No Allowance	23,368		23,368		13,223
Recorded Investment With Allowance	181		181
Unpaid Principal Balance With Allowance	181		181
Related Allowance	181		181
Average Recorded Investment	16,074	$ 13,192	17,710	$ 14,191
Interest Income Recognized	119	119	349	360
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Allowance	820		820		869
Unpaid Principal Balance With No Allowance	936		936		950
Recorded Investment With Allowance
Unpaid Principal Balance With Allowance
Related Allowance
Average Recorded Investment	1,359	1,211	1,649	1,237
Interest Income Recognized	12	10	33	32
Residential Real Estate [Member] | First Liens [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Allowance	754		754		869
Unpaid Principal Balance With No Allowance	870		870		950
Recorded Investment With Allowance
Unpaid Principal Balance With Allowance
Related Allowance
Average Recorded Investment	1,091	1,157	899	1,152
Interest Income Recognized	10	10	31	32
Residential Real Estate [Member] | Junior Liens & Lines Of Credit [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Allowance	66		66
Unpaid Principal Balance With No Allowance	66		66
Recorded Investment With Allowance
Unpaid Principal Balance With Allowance
Related Allowance
Average Recorded Investment	268	54	750	85
Interest Income Recognized	2		2
Residential Real Estate - Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Allowance	460		460		466
Unpaid Principal Balance With No Allowance	531		531		531
Recorded Investment With Allowance
Unpaid Principal Balance With Allowance
Related Allowance
Average Recorded Investment	461	471	463	475
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Allowance	10,715		10,715		11,061
Unpaid Principal Balance With No Allowance	11,248		11,248		11,541
Recorded Investment With Allowance
Unpaid Principal Balance With Allowance
Related Allowance
Average Recorded Investment	10,789	11,218	10,314	12,216
Interest Income Recognized	107	109	316	328
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Allowance	3,082		3,082		187
Unpaid Principal Balance With No Allowance	10,653		10,653		201
Recorded Investment With Allowance	181		181
Unpaid Principal Balance With Allowance	181		181
Related Allowance	181		181
Average Recorded Investment	$ 3,465	$ 292	$ 5,284	$ 263

Loan Quality and Allowance fo_5

Loan Quality and Allowance for Loan Losses (Aging Of Payments Of The Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 957,740	$ 938,928
Loans Past Due and Still Accruing	7,620	2,097
Non-accrual loans	5,623	2,675
Total Loans	970,983	943,700
30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	3,204	1,179
60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	4,373	918
90 Days+ Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	43
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	197,273	207,449
Loans Past Due and Still Accruing	888	1,188
Non-accrual loans	94	168
Total Loans	198,255	208,805
Residential Real Estate [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	543	624
Residential Real Estate [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	302	564
Residential Real Estate [Member] | 90 Days+ Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	43
Residential Real Estate [Member] | First Liens [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	149,366	157,247
Loans Past Due and Still Accruing	734	1,019
Non-accrual loans	71	168
Total Loans	150,171	158,434
Residential Real Estate [Member] | First Liens [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	503	485
Residential Real Estate [Member] | First Liens [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	231	534
Residential Real Estate [Member] | Junior Liens & Lines Of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	47,907	50,202
Loans Past Due and Still Accruing	154	169
Non-accrual loans	23
Total Loans	48,084	50,371
Residential Real Estate [Member] | Junior Liens & Lines Of Credit [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	40	139
Residential Real Estate [Member] | Junior Liens & Lines Of Credit [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	71	30
Residential Real Estate [Member] | Junior Liens & Lines Of Credit [Member] | 90 Days+ Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	43
Residential Real Estate - Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	11,359	9,435
Loans Past Due and Still Accruing	470
Non-accrual loans	460	466
Total Loans	12,289	9,901
Residential Real Estate - Construction [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	70
Residential Real Estate - Construction [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	400
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	468,202	425,806
Loans Past Due and Still Accruing	5,830	768
Non-accrual loans	1,806	1,854
Total Loans	475,838	428,428
Commercial Real Estate [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	2,224	421
Commercial Real Estate [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	3,606	347
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	276,180	291,221
Loans Past Due and Still Accruing	392	111
Non-accrual loans	3,263	187
Total Loans	279,835	291,519
Commercial [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	328	111
Commercial [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	64
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	4,726	5,017
Loans Past Due and Still Accruing	40	30
Total Loans	4,766	5,047
Consumer [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	39	23
Consumer [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due and Still Accruing	$ 1	$ 7

Loan Quality and Allowance fo_6

Loan Quality and Allowance for Loan Losses (Internal Credit Rating For The Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	$ 970,983	$ 943,700
Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	956,130	930,899
Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	665	680
Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	14,188	12,121
Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	198,255	208,805
Residential Real Estate [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	197,759	207,766
Residential Real Estate [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	496	1,039
Residential Real Estate [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount
Residential Real Estate [Member] | First Liens [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	150,171	158,434
Residential Real Estate [Member] | First Liens [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	149,741	157,395
Residential Real Estate [Member] | First Liens [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	430	1,039
Residential Real Estate [Member] | First Liens [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount
Residential Real Estate [Member] | Junior Liens & Lines Of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	48,084	50,371
Residential Real Estate [Member] | Junior Liens & Lines Of Credit [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	48,018	50,371
Residential Real Estate [Member] | Junior Liens & Lines Of Credit [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	66
Residential Real Estate [Member] | Junior Liens & Lines Of Credit [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount
Residential Real Estate - Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	12,289	9,901
Residential Real Estate - Construction [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	11,556	8,893
Residential Real Estate - Construction [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	733	1,008
Residential Real Estate - Construction [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	475,838	428,428
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	466,800	419,277
Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	665	680
Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	8,373	8,471
Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	279,835	291,519
Commercial [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	275,249	289,916
Commercial [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	4,586	1,603
Commercial [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	4,766	5,047
Consumer [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	4,766	5,047
Consumer [Member] | Doubtful [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount

Loan Quality and Allowance fo_7

Loan Quality and Allowance for Loan Losses (Troubled Debt Restructuring Loans) (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018USD ($)itemcontract	Sep. 30, 2017item	Sep. 30, 2018USD ($)itemcontract	Sep. 30, 2017item	Dec. 31, 2017USD ($)contract
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Number of Contracts | contract		16		16		17
Troubled Debt Restructurings: Recorded Investment		$ 11,717		$ 11,717		$ 12,186
Troubled Debt Restructurings That Have Defaulted on Modified Terms in the Last Twelve Months: Number of Contracts | contract
Troubled Debt Restructurings That Have Defaulted on Modified Terms in the Last Twelve Months: Recorded Investment
New During Period, Number of Contracts | item		0	0	0	0
Performing [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Recorded Investment	[1]	$ 9,592		$ 9,592		11,555
Nonperforming [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Recorded Investment	[1]	$ 2,125		$ 2,125		$ 631
Residential Real Estate - Construction [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Number of Contracts | contract		1		1		1
Troubled Debt Restructurings: Recorded Investment		$ 460		$ 460		$ 466
Troubled Debt Restructurings That Have Defaulted on Modified Terms in the Last Twelve Months: Number of Contracts | contract
Troubled Debt Restructurings That Have Defaulted on Modified Terms in the Last Twelve Months: Recorded Investment
Residential Real Estate - Construction [Member] | Performing [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Recorded Investment	[1]					$ 466
Residential Real Estate - Construction [Member] | Nonperforming [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Recorded Investment	[1]	$ 460		$ 460
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Number of Contracts | contract		4		4		5
Troubled Debt Restructurings: Recorded Investment		$ 683		$ 683		$ 737
Troubled Debt Restructurings That Have Defaulted on Modified Terms in the Last Twelve Months: Number of Contracts | contract
Troubled Debt Restructurings That Have Defaulted on Modified Terms in the Last Twelve Months: Recorded Investment
Residential Real Estate [Member] | Performing [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Recorded Investment	[1]	$ 683		$ 683		701
Residential Real Estate [Member] | Nonperforming [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Recorded Investment	[1]					$ 36
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Number of Contracts | contract		11		11		11
Troubled Debt Restructurings: Recorded Investment		$ 10,574		$ 10,574		$ 10,983
Troubled Debt Restructurings That Have Defaulted on Modified Terms in the Last Twelve Months: Number of Contracts | contract
Troubled Debt Restructurings That Have Defaulted on Modified Terms in the Last Twelve Months: Recorded Investment
Commercial Real Estate [Member] | Performing [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Recorded Investment	[1]	8,909		8,909		10,388
Commercial Real Estate [Member] | Nonperforming [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings: Recorded Investment	[1]	$ 1,665		$ 1,665		$ 595
[1]	The performing status is determined by the loan's compliance with the modified terms.

Other Real Estate Owned (Detail

Other Real Estate Owned (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Other Real Estate Owned [Abstract]
Balance at beginning of the period	$ 2,598	$ 4,915
Additions	105	52
Proceeds from dispositions	(32)	(2,255)
Loss on sales, net		(23)
Valuation adjustment	(6)	(60)
Balance at the end of the period	$ 2,665	$ 2,629

Pension (Narrative) (Details)

Pension (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Pension [Abstract]
Expected pension expense	$ 500			$ 500
Pension Contributions		$ 1,000		1,000
Pension expense	$ 125		$ 116	$ 375	$ 344	$ 459

Pension (Schedule Of Net Period

Pension (Schedule Of Net Periodic Pension Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Pension [Abstract]
Service cost	$ 90	$ 80	$ 270	$ 237
Interest cost	138	167	414	500
Expected return on plan assets	(279)	(268)	(837)	(804)
Recognized net actuarial loss	176	137	528	411
Net period cost	$ 125	$ 116	$ 375	$ 344	$ 459

Fair Value Measurements And F_3

Fair Value Measurements And Fair Values Of Financial Instruments (Narrative) (Details)	Sep. 30, 2018USD ($)
Fair Value Measurements And Fair Values Of Financial Instruments [Abstract]
Total liabilities	$ 0
Assets, Level 1 to Level 2 Transfers	0
Liabilities, Level 1 to Level 2 Transfers	$ 0

Fair Value Measurements And F_4

Fair Value Measurements And Fair Values Of Financial Instruments (Fair Value, By Balance Sheet Grouping) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale	$ 125,403	$ 126,971
Equity securities	383	365
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	44,777	58,603
Restricted stock	452	456
Loans held for sale	1,072	442
Net loans	958,457	931,908
Accrued interest receivable	3,733	3,847
Available for sale	125,403
Equity securities	383
Deposits	1,071,857	1,047,181
Accrued interest payable	202	149
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	44,777	58,603
Restricted stock	452	456
Loans held for sale	1,072	442
Net loans	933,824	929,891
Accrued interest receivable	3,733	3,847
Available for sale	125,403
Equity securities	383
Deposits	1,071,744	1,046,476
Accrued interest payable	202	149
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	44,777	58,603
Equity securities	383
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Restricted stock	452	45
Loans held for sale	1,072	442
Accrued interest receivable	3,733	3,847
Available for sale	125,403
Deposits	1,071,744	1,046,476
Accrued interest payable	202	149
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	$ 933,824	929,891
Before Adoption Of ASU 2016-01 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale		127,336
Before Adoption Of ASU 2016-01 [Member] | Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale		127,336
Before Adoption Of ASU 2016-01 [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale		127,336
Before Adoption Of ASU 2016-01 [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale		365
Before Adoption Of ASU 2016-01 [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale		$ 126,971

Fair Value Measurements And F_5

Fair Value Measurements And Fair Values Of Financial Instruments (Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, at fair value	$ 383	$ 365
Available for sale	125,403	126,971
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, at fair value	383
Total assets	125,786	127,336
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, at fair value	383
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, at fair value	383
Total assets	383	365
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	125,403
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	125,403	126,971
Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale		365
Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale		365
Equity Securities [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale		365
U.S. Government And Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	9,276	11,472
U.S. Government And Agency Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	9,276	11,472
U.S. Government And Agency Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	9,276	11,472
Municipal Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	62,403	57,772
Municipal Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	62,403	57,772
Municipal Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	62,403	57,772
Trust Preferred Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	3,947	5,817
Trust Preferred Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	3,947	5,817
Trust Preferred Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	3,947	5,817
Agency Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	45,370	50,937
Agency Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	45,370	50,937
Agency Mortgage-Backed Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	45,370	50,937
Private-Label Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	517	946
Private-Label Mortgage-Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	517	946
Private-Label Mortgage-Backed Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	517	946
Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	3,890	27
Asset-Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	3,890	27
Asset-Backed Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	$ 3,890	$ 27

Fair Value Measurements And F_6

Fair Value Measurements And Fair Values Of Financial Instruments (Schedule Of Fair Value On A Nonrecurring Basis) (Details) - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		$ 2,925	$ 90
Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		2,925	90
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	[1]	2,925
Impaired Loans [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	[2]	2,925
Impaired Loans [Member] | Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	[1]	$ 2,925
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	[1]		90
Other Real Estate Owned [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	[2]		90
Other Real Estate Owned [Member] | Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	[1]		$ 90
[1]	(Dollars in Thousands)Fair Value at December 31, 2017Asset DescriptionLevel 1Level 2Level 3TotalOther real estate owned (1)$ -$ -$ 90$ 90Total assets$ -$ -$ 90$ 90Includes assets directly charged-down to fair value during the year-to-date period.
[2]	Includes assets directly charged-down to fair value during the year-to-date period.

Fair Value Measurements And F_7

Fair Value Measurements And Fair Values Of Financial Instruments (Fair Value Inputs, Assets, Quantitative Information) (Details) - Level 3 [Member] - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	[1]	$ 2,925
Impaired Loans [Member] | Minimum [Member] | Appraisal Adjustment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Quantitative Information Percentage		0.00%
Impaired Loans [Member] | Maximum [Member] | Appraisal Adjustment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Quantitative Information Percentage		50.00%
Impaired Loans [Member] | Weighted Average [Member] | Appraisal Adjustment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Quantitative Information Percentage		45.00%
Other Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	[1]		$ 90
Other Real Estate Owned [Member] | Cost To Sell [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Quantitative Information Percentage			8.00%
[1]	Includes assets directly charged-down to fair value during the year-to-date period.

Capital Ratios (Narrative) (Det

Capital Ratios (Narrative) (Details)		9 Months Ended
		Sep. 30, 2018		Dec. 31, 2017	Dec. 31, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Risk-based Capital Ratio: Ratio		14.89%
Capital Ratios, Basel III, Capital Conservation Buffer				1.25%	0.625%
Capital Ratios, Basel III, Capital Conservation Buffer, Year Two		1.875%
Capital Ratios, Basel III, Capital Conservation Buffer, Year Three		2.50%
Farmers & Merchants Trust Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier 1 Risk-based Capital Ratio: Well Capitalized Minimum: Ratio	[1]	6.50%
Tier 1 Risk-based Capital Ratio: Well Capitalized Minimum: Ratio		8.00%	[2]	6.00%
Tier 1 Leverage Ratio: Well Capitalized Minimum: Ratio	[3]	5.00%
Total Risk-based Capital Ratio: Well Capitalized Minimum: Ratio	[4]	10.00%
Capital ratios, capital conservation buffer		6.89%
Total Risk-based Capital Ratio: Ratio	[4]	14.68%		15.19%
[1]	Common equity Tier 1 capital/ total risk-weighted assets
[2]	Tier 1 capital / total risk-weighted assets
[3]	Tier 1 capital / average quarterly assets
[4]	Total risk-based capital / total risk-weighted assets

Capital Ratios (Schedule Of The

Capital Ratios (Schedule Of The Total Risk-based, Tier 1 Risk-based And Tier 1 Leverage Requirements) (Details)		Sep. 30, 2018		Dec. 31, 2017
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Risk-based Capital Ratio: Ratio		14.89%
Franklin Financial Services Corporation [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier 1 Risk-based Capital Ratio: Ratio	[1]	13.64%		14.06%
Common Equity Tier 1 Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio	[1]	4.50%
Tier 1 Risk-based Capital Ratio: Ratio	[2]	13.64%		14.06%
Tier 1 Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio	[2]	6.00%
Total Risk-based Capital Ratio: Ratio	[3]	14.89%		15.31%
Total Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio	[3]	8.00%
Tier 1 Leverage Ratio: Ratio	[4]	9.59%		9.73%
Tier 1 Leverage Ratio: Adequately Capitalized Minimum: Ratio	[4]	4.00%
Farmers & Merchants Trust Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier 1 Risk-based Capital Ratio: Ratio	[1]	13.42%		13.93%
Common Equity Tier 1 Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio	[1]	4.50%
Common Equity Tier 1 Risk-based Capital Ratio: Well Capitalized Minimum: Ratio	[1]	6.50%
Tier 1 Risk-based Capital Ratio: Ratio	[2]	13.42%		13.93%
Tier 1 Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio	[2]	6.00%
Tier 1 Risk-based Capital Ratio: Well Capitalized Minimum: Ratio		8.00%	[2]	6.00%
Total Risk-based Capital Ratio: Ratio	[3]	14.68%		15.19%
Total Risk-based Capital Ratio: Adequately Capitalized Minimum: Ratio	[3]	8.00%
Total Risk-based Capital Ratio: Well Capitalized Minimum: Ratio	[3]	10.00%
Tier 1 Leverage Ratio: Ratio	[4]	9.48%		9.64%
Tier 1 Leverage Ratio: Adequately Capitalized Minimum: Ratio	[4]	4.00%
Tier 1 Leverage Ratio: Well Capitalized Minimum: Ratio	[4]	5.00%
[1]	Common equity Tier 1 capital/ total risk-weighted assets
[2]	Tier 1 capital / total risk-weighted assets
[3]	Total risk-based capital / total risk-weighted assets
[4]	Tier 1 capital / average quarterly assets

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Investment and trust services fees	$ 1,424	$ 1,353	$ 4,285	$ 3,991
Estate management services Fees recognition period			18 months
Asset Management Fees [Member]
Disaggregation of Revenue [Line Items]
Investment and trust services fees	1,300		$ 3,800
Estate Management Services Fees [Member]
Disaggregation of Revenue [Line Items]
Investment and trust services fees	86		228
Commisions [Member]
Disaggregation of Revenue [Line Items]
Investment and trust services fees	$ 75		$ 218

Commitments And Contingencies_2

Commitments And Contingencies (Narrative) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2018	Dec. 31, 2017
Commitments And Contingencies [Abstract]
Allowance against letters of credit	$ 2,400	$ 2,361
Accrued settlement payment			$ 10,000

Commitments And Contingencies_3

Commitments And Contingencies (Outstanding Commitments ) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Commercial Commitments To Extend Credit [Member]
Loss Contingencies [Line Items]
Commitments outstanding	$ 226,069	$ 249,526
Consumer Commitments To Extend Credit (Secured) [Member]
Loss Contingencies [Line Items]
Commitments outstanding	46,166	44,866
Consumer Commitments To Extend Credit (Unsecured) [Member]
Loss Contingencies [Line Items]
Commitments outstanding	5,663	5,668
Commitments To Extend Credit [Member]
Loss Contingencies [Line Items]
Commitments outstanding	277,898	300,060
Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Commitments outstanding	$ 25,692	$ 28,630