LCNB (LCNB) 10-Q9 Nov 182018 Q3 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2018	Nov. 06, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	LCNB CORP.
Entity Central Index Key	1,074,902
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		13,305,375

CONSOLIDATED CONDENSED BALANCE

CONSOLIDATED CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
ASSETS:
Cash and due from banks	$ 16,136	$ 21,159
Interest-bearing demand deposits	3,676	4,227
Total cash and cash equivalents	19,812	25,386
Certificates of Deposit, at Carrying Value	6,873	0
Investment securities:
Equity securities with a readily determinable fair value, at fair value	2,200	2,160
Equity securities without a readily determinable fair value, at cost	2,099	1,099
Debt securities, available-for-sale, at fair value	247,437	275,213
Debt securities, held-to-maturity, at cost	31,679	32,571
Federal Reserve Bank stock, at cost	4,653	2,732
Federal Home Loan Bank stock, at cost	4,845	3,638
Loans, net	1,158,309	845,657
Premises and equipment, net	33,028	34,927
Assets Held-for-sale, Not Part of Disposal Group, Current	505	0
Goodwill	59,287	30,183
Core deposit and other intangibles	5,306	3,799
Bank owned life insurance	28,539	27,985
Other assets	15,727	10,288
TOTAL ASSETS	1,620,299	1,295,638
Deposits:
Noninterest-bearing	333,440	283,212
Interest-bearing	1,037,583	802,609
Total deposits	1,371,023	1,085,821
Short-term borrowings	0	47,000
Long-term debt	23,079	303
Accrued interest and other liabilities	12,682	12,243
TOTAL LIABILITIES	1,406,784	1,145,367
COMMITMENTS AND CONTINGENT LIABILITIES	0	0
SHAREHOLDERS' EQUITY:
Preferred shares – no par value, authorized 1,000,000 shares, none outstanding	0	0
Common shares – no par value; authorized 19,000,000 shares; issued 14,058,603 and 10,776,686 shares at September 30, 2018 and December 31, 2017, respectively	140,996	76,977
Retained earnings	91,617	87,301
Treasury shares at cost, 753,627 shares at September 30, 2018 and December 31, 2017	(11,665)	(11,665)
Accumulated other comprehensive loss, net of taxes	(7,433)	(2,342)
TOTAL SHAREHOLDERS' EQUITY	213,515	150,271
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,620,299	$ 1,295,638

CONSOLIDATED CONDENSED BALANC_2

CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2018	Dec. 31, 2017
SHAREHOLDERS' EQUITY:
Preferred shares, no par value (in dollars per share)
Preferred shares, shares authorized (in shares)	1,000,000	1,000,000
Preferred shares, shares outstanding (in shares)	0	0
Common shares, no par value (in dollars per share)
Common shares, shares authorized (in shares)	19,000,000	19,000,000
Common shares, shares issued (in shares)	14,058,603	10,776,686
Treasury shares (in shares)	753,627	753,627

CONSOLIDATED CONDENSED STATEMEN

CONSOLIDATED CONDENSED 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:
Interest and fees on loans	$ 13,363	$ 9,095	$ 33,479	$ 26,833
With a readily determinable fair value	17	13	48	44
Without a readily determinable fair value	7	6	22	17
Taxable	901	1,089	2,766	3,289
Non-taxable	661	783	2,045	2,377
Other investments	121	69	390	293
TOTAL INTEREST INCOME	15,070	11,055	38,750	32,853
INTEREST EXPENSE:
Interest on deposits	1,810	850	3,777	2,539
Interest on short-term borrowings	12	55	88	97
Interest on long-term debt	145	3	226	10
TOTAL INTEREST EXPENSE	1,967	908	4,091	2,646
NET INTEREST INCOME	13,103	10,147	34,659	30,207
PROVISION FOR LOAN LOSSES	659	(12)	962	225
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	12,444	10,159	33,697	29,982
NON-INTEREST INCOME:
Fiduciary income	1,081	871	2,987	2,604
Service charges and fees on deposit accounts	1,439	1,352	4,170	3,886
Net gain (loss) from sales of debt securities, available-for-sale	(7)	78	(8)	218
Bank owned life insurance income	185	190	553	676
Gains from sales of loans	63	34	182	136
Other operating income	160	134	464	359
TOTAL NON-INTEREST INCOME	2,921	2,659	8,348	7,879
NON-INTEREST EXPENSE:
Salaries and employee benefits	5,686	4,678	15,791	13,907
Equipment expenses	276	361	797	836
Occupancy expense, net	734	685	2,119	1,889
State franchise tax	299	281	898	851
Marketing	382	282	798	641
Amortization of intangibles	286	189	659	562
FDIC insurance premiums	91	108	289	320
Contracted services	387	307	1,093	930
Other real estate owned	1	3	4	8
Merger-related expenses	346	0	1,959	0
Other non-interest expense	1,829	1,778	6,170	5,307
TOTAL NON-INTEREST EXPENSE	10,317	8,672	30,577	25,251
INCOME BEFORE INCOME TAXES	5,048	4,146	11,468	12,610
PROVISION FOR INCOME TAXES	847	1,040	1,816	3,255
NET INCOME	$ 4,201	$ 3,106	$ 9,652	$ 9,355
Dividends declared per common share (usd per share)	$ 0.16	$ 0.16	$ 0.48	$ 0.48
Earnings per common share:
Basic (usd per share)	0.32	0.31	0.84	0.93
Diluted (usd per share)	$ 0.32	$ 0.31	$ 0.84	$ 0.93
Weighted average common shares outstanding:
Basic (in shares)	13,285,203	10,008,807	11,480,390	10,002,812
Diluted (in shares)	13,290,665	10,015,204	11,486,051	10,009,942

CONSOLIDATED CONDENSED STATEM_2

CONSOLIDATED CONDENSED 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
Statement of Comprehensive Income [Abstract]
Net income	$ 4,201	$ 3,106	$ 9,652	$ 9,355
Other comprehensive income (loss):
Net unrealized gain (loss) on available-for-sale securities (net of taxes of $(281) and $127 for the three months ended September 30, 2018 and 2017, respectively, and $(1,218) and $1,021 for the nine months ended September 30, 2018 and 2017, respectively)	(1,058)	240	(4,581)	1,974
Reclassification adjustment for net realized (gain) loss on sale of available-for-sale securities included in net income (net of taxes of $(2) and $27 for the three months ended September 30, 2018 and 2017, respectively, and $(2) and $75 for the nine months ended September 30, 2018 and 2017, respectively)	(5)	51	(6)	143
Change in nonqualified pension plan unrecognized net loss and unrecognized prior service cost (net of taxes of $1 and $0 for the three months ended September 30, 2018 and 2017, respectively, and $3 and $0 for the nine months ended September 30, 2018 and 2017, respectively)	3	0	9	0
Other comprehensive income (loss), net of tax	(1,050)	189	(4,566)	1,831
TOTAL COMPREHENSIVE INCOME	$ 3,151	$ 3,295	$ 5,086	$ 11,186

CONSOLIDATED CONDENSED STATEM_3

CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Other comprehensive income:
Net unrealized gain (loss) on available-for-sale securities, tax expense (benefit)	$ (281)	$ 127	$ (1,218)	$ 1,021
Net realized (gain) loss on sale of available-for-sale securities included in net income, tax (expense) benefit	(2)	27	(2)	75
Change in nonqualified pension plan unrecognized net loss and unrecognized prior service cost, tax benefit	$ 1	$ 0	$ 3	$ 0

CONSOLIDATED CONDENSED STATEM_4

CONSOLIDATED CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Retained Earnings [Member]	Treasury Shares [Member]	Accumulated Other Comprehensive Income [Member]	Calculated under Revenue Guidance in Effect before Topic 606 [Member]	Calculated under Revenue Guidance in Effect before Topic 606 [Member]Common Stock [Member]	Calculated under Revenue Guidance in Effect before Topic 606 [Member]Retained Earnings [Member]	Calculated under Revenue Guidance in Effect before Topic 606 [Member]Treasury Shares [Member]	Calculated under Revenue Guidance in Effect before Topic 606 [Member]Accumulated Other Comprehensive Income [Member]	Difference between Revenue Guidance in Effect before and after Topic 606 [Member]	Difference between Revenue Guidance in Effect before and after Topic 606 [Member]Retained Earnings [Member]	Difference between Revenue Guidance in Effect before and after Topic 606 [Member]Accumulated Other Comprehensive Income [Member]	Columbus First Bancorp, Inc. [Member]	Columbus First Bancorp, Inc. [Member]Common Stock [Member]
Balance Beginning (in shares) at Dec. 31, 2016		9,998,025
Balance beginning at Dec. 31, 2016	$ 142,944	$ 76,490	$ 80,736	$ (11,665)	$ (2,617)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,355		9,355
Other comprehensive income, net of taxes	1,831				1,831
Dividend Reinvestment and Stock Purchase Plan (in shares)		13,057
Dividend Reinvestment and Stock Purchase Plan	266	$ 266
Exercise of stock options (in shares)		3,398
Exercise of stock options	51	$ 51
Adjustments to Additional Paid in Capital, Share-based Compensation, Stock Options, Requisite Service Period Recognition	1	$ 1
Compensation expense relating to restricted stock (in shares)		4,027
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition	69	$ 69
Common stock dividends, $0.48 per share	(4,804)		(4,804)
Balance Ending (in shares) at Sep. 30, 2017		10,018,507
Balance ending at Sep. 30, 2017	149,713	$ 76,877	85,287	(11,665)	(786)
Balance Beginning (in shares) at Jun. 30, 2017		10,014,004
Balance beginning at Jun. 30, 2017	147,927	$ 76,785	83,782	(11,665)	(975)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,106		3,106
Other comprehensive income, net of taxes	189				189
Dividend Reinvestment and Stock Purchase Plan (in shares)		4,503
Dividend Reinvestment and Stock Purchase Plan	86	$ 86
Compensation expense relating to restricted stock (in shares)		0
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition	6	$ 6
Common stock dividends, $0.48 per share	(1,601)		(1,601)
Balance Ending (in shares) at Sep. 30, 2017		10,018,507
Balance ending at Sep. 30, 2017	149,713	$ 76,877	85,287	(11,665)	(786)
Balance Beginning (in shares) at Dec. 31, 2017		10,023,059					10,023,059
Balance beginning at Dec. 31, 2017	150,271	$ 76,977	87,826	$ (11,665)	(2,867)	$ 150,271	$ 76,977	$ 87,301	$ (11,665)	$ (2,342)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,652		9,652
Other comprehensive income, net of taxes	(4,566)				(4,566)
Dividend Reinvestment and Stock Purchase Plan (in shares)		15,592
Dividend Reinvestment and Stock Purchase Plan	299	$ 299
Exercise of stock options (in shares)		2,631													3,253,060
Exercise of stock options	33	$ 33													$ 63,598
Stock Issued During Period, Value, Acquisitions														$ 63,598
Compensation expense relating to restricted stock (in shares)		10,634
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition	89	$ 89
Common stock dividends, $0.48 per share	(5,861)		(5,861)
Cumulative effect of changes in accounting principles \| Accounting Standards Update 2014-09 [Member]											$ (525)	$ 525	$ (525)
Balance Ending (in shares) at Sep. 30, 2018							13,304,976
Balance ending at Sep. 30, 2018	213,515				(7,433)		$ 140,996	91,617	(11,665)	(7,433)
Balance Beginning (in shares) at Jun. 30, 2018							13,299,235
Balance beginning at Jun. 30, 2018	212,366						$ 140,870	89,544	(11,665)	(6,383)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,201		4,201
Other comprehensive income, net of taxes	(1,050)				(1,050)
Dividend Reinvestment and Stock Purchase Plan (in shares)		5,741
Dividend Reinvestment and Stock Purchase Plan	108	$ 108
Compensation expense relating to restricted stock (in shares)		0
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition	18	$ 18
Common stock dividends, $0.48 per share	(2,128)		$ (2,128)
Balance Ending (in shares) at Sep. 30, 2018							13,304,976
Balance ending at Sep. 30, 2018	$ 213,515				$ (7,433)		$ 140,996	$ 91,617	$ (11,665)	$ (7,433)

CONSOLIDATED CONDENSED STATEM_5

CONSOLIDATED CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Adjustments to Additional Paid in Capital, Share-based Compensation, Stock Options, Requisite Service Period Recognition				$ 1
Common stock dividends (in dollars per share)	$ 0.16	$ 0.16	$ 0.48	$ 0.48
Common Stock [Member]
Adjustments to Additional Paid in Capital, Share-based Compensation, Stock Options, Requisite Service Period Recognition				$ 1

CONSOLIDATED CONDENSED STATEM_6

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS $ in Thousands	9 Months Ended
	Sep. 30, 2018USD ($)	Sep. 30, 2017USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 9,652	$ 9,355
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation, amortization, and accretion	3,226	2,732
Provision for loan losses	962	225
Deferred income tax provision (benefit)	(111)	0
Increase in cash surrender value of bank owned life insurance	(553)	(569)
Bank owned life insurance mortality benefits in excess of cash surrender value	0	(107)
Realized gain from equity securities	(12)	0
Realized (gain) loss from sales of debt securities available-for-sale	8	(218)
Realized loss from sales of premises and equipment	41	121
Impairment charge recognized on premises and equipment	645	0
Realized loss from sales and impairment of other real estate owned and repossessed assets	0	3
Origination of mortgage loans for sale	(6,478)	(6,012)
Realized gains from sales of loans	(182)	(136)
Proceeds from sales of mortgage loans	6,576	6,076
Compensation expense related to stock options	0	1
Compensation expense related to restricted stock	89	69
Changes in:
Accrued income receivable	(1,231)	(1,210)
Other assets	(1,436)	514
Other liabilities	186	1,708
TOTAL ADJUSTMENTS	1,730	3,197
NET CASH FLOWS PROVIDED BY OPERATING ACTIVITIES	11,382	12,552
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sales of equity securities	73	0
Proceeds from sales of debt securities available-for-sale	8,545	26,407
Proceeds from maturities and calls of debt securities, available-for-sale	12,237	12,486
Proceeds from maturities and calls of debt securities, held-to-maturity	3,377	9,518
Purchases of equity securities	(1,100)	0
Purchases of debt securities, available-for-sale	0	(27,002)
Purchases of debt securities, held-to-maturity	(2,485)	(5,375)
Proceeds from maturities of interest-bearing time deposits	3,477	0
Net increase (decrease) in loans	(29,653)	(15,402)
Proceeds from bank owned life insurance mortality benefits	0	189
Proceeds from sale of other real estate owned and repossessed assets	0	971
Purchases of premises and equipment	(497)	(6,082)
Proceeds from sale of premises and equipment	19	220
Net cash received from acquisition of Columbus First Bancorp, Inc.	12,896	0
NET CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES	4,968	(4,070)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in deposits	40,772	10,618
Net decrease in short-term borrowings	(57,000)	(12,040)
Proceeds from long-term debt	6,000	0
Principal payments on long-term debt	(6,167)	(235)
Proceeds from issuance of common stock	43	27
Proceeds from exercise of stock options	33	51
Cash dividends paid on common stock	(5,605)	(4,565)
NET CASH FLOWS USED IN FINANCING ACTIVITIES	(21,924)	(6,144)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(5,574)	2,338
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	25,386	18,865
CASH AND CASH EQUIVALENTS AT END OF PERIOD	19,812	21,203
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid	4,043	2,651
Income taxes paid	700	1,610
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING ACTIVITIES:
Transfer from loans to other real estate owned and repossessed assets	0	974
LCNB purchased all of the common stock of Columbus First Bancorp, Inc on May 31, 2018, In conjunction with the acquisition, liabilities were assumed as follows (in thousands):
Payments to Acquire Federal Reserve Bank Stock	1,921	$ 0
Columbus First Bancorp, Inc. [Member]
LCNB purchased all of the common stock of Columbus First Bancorp, Inc on May 31, 2018, In conjunction with the acquisition, liabilities were assumed as follows (in thousands):
Fair value of assets acquired	342,264
Less common stock issued	63,598
Less cash paid for the common stock	783
Liabilities assumed	$ 277,883

Basis of Presentation

Basis of Presentation	9 Months Ended
Basis of Presentation	Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Basis of Presentation The accompanying unaudited interim consolidated condensed financial statements include LCNB Corp. ("LCNB") and its wholly-owned subsidiaries: LCNB National Bank (the "Bank") and LCNB Risk Management, Inc., its captive insurance company. All material intercompany transactions and balances are eliminated in consolidation. The unaudited interim consolidated condensed financial statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and the rules and regulations of the Securities and Exchange Commission (the "SEC"). Certain information and note disclosures normally included in annual financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted pursuant to those rules and regulations. In the opinion of management, the unaudited interim consolidated financial statements include all adjustments (consisting of normal, recurring accruals) considered necessary for a fair presentation of financial position, results of operations, and cash flows for the interim periods, as required by Regulation S-X, Rule 10-01. The consolidated condensed balance sheet as of December 31, 2017 has been derived from the audited consolidated balance sheet as of that day. Certain prior period data presented in the financial statements have been reclassified to conform with the current year presentation. The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Results of operations for the three and nine months ended September 30, 2018 are not necessarily indicative of the results to be expected for the full year ending December 31, 2018 . These unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements, accounting policies, and financial notes thereto included in LCNB's 2017 Annual Report on Form 10-K filed with the SEC. Accounting Changes ASU No. 2014-09, "Revenue from Contracts with Customers (Topic 606)" ASU No. 2014-09 was issued in May 2014 and was adopted by LCNB as of January 1, 2018. It supersedes most current revenue recognition guidance for contracts to transfer goods or services or other nonfinancial assets. Lease contracts, insurance contracts, and most financial instruments are not included in the scope of this update. ASU No. 2014-09 provides that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance enumerates five steps that entities should follow in achieving this core principle. Additional disclosures providing information about contracts with customers are required. Adoption did not have a material impact on LCNB's results of operations or financial position. ASU No. 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities" ASU No. 2016-01 was issued in January 2016 and was adopted by LCNB as of January 1, 2018. It applies to all entities that hold financial assets or owe financial liabilities. It makes targeted changes to generally accepted accounting principles for public companies as follows: 1. Requires most 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. When a qualitative assessment indicates that impairment exists, an entity is required to measure the investment at fair value. 3. Eliminates the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet. 4. Requires use of the exit price notion when measuring the fair value of financial instruments for disclosure purposes. 5. 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 in accordance with the fair value option for financial instruments. 6. Requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset (that is, securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements. 7. Clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other deferred tax assets. Adoption of ASU No. 2016-01 did not have a material impact on LCNB's results of operations or financial position. Upon adoption on January 1, 2018, LCNB reclassified net unrealized gain on equity securities, net of taxes, of $33,000 from accumulated other comprehensive income into retained earnings. Before adoption, equity securities were included with investment securities, available for sale in the consolidated condensed balance sheets and dividends received were included in interest on investment securities, taxable in the consolidated condensed statements of income. After adoption, equity securities are separate line items in the consolidated condensed balance sheets and the consolidated condensed statements of income. Changes in the fair value of equity securities are included in other operating income in the consolidated condensed statements of income. ASU No. 2017-07, "Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost" ASU No. 2017-07 was issued in March 2017 and was adopted by LCNB as of January 1, 2018. It applies to all employers that offer to their employees defined benefit pension plans, other postretirement benefit plans, or other types of benefits accounted for under Topic 715. The amendments in this update require that an employer 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, as defined, are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. If a separate line item or items are not used, the line item or items used in the income statement to present the other components of net benefit cost must be disclosed. The amendments in this update are to be applied retrospectively for the presentation of the service cost component and the other components of net periodic pension cost and net periodic postretirement benefit cost in the income statement. Adoption of ASU No. 2017-07 did not have a material impact on LCNB's results of operations or financial position. ASU No. 2017-09, "Compensation - Stock Compensation (Topic 718): Scope of Modification Accounting" ASU No. 2017-09 was issued in May 2017 and was adopted by LCNB on January 1, 2018. It applies to any entity that changes the terms or conditions of a share-based payment award. The amendments in this update provide that an entity would not apply modification accounting under the guidance in Topic 718 if the fair value, vesting conditions, and classification of the awards are the same immediately before and after the modification. The amendments are to be applied prospectively and are effective for all entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Adoption of ASU No. 2017-09 did not have a material impact on LCNB's results of operations or financial position. . ASU No. 2018-02, "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income" ASU No. 2018-02 was issued in February 2018 and is effective for all entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted and LCNB early adopted the ASU as of January 1, 2018. ASU No. 2018-02 addresses a narrow-scope financial reporting issue that arose as a consequence of the passage of H.R. 1, known as the “Tax Cuts and Jobs Act.” Generally Accepted Accounting Principles requires adjustment of deferred tax assets and liabilities for the effect of a change in tax laws or rates with the effect to be included in income from continuing operations in the reporting period that includes the enactment date. This guidance is applicable even in situations in which the related income tax effects of items in accumulated other comprehensive income were originally recognized in other comprehensive income rather than in income from continuing operations. As a consequence, the tax effects of items within accumulated other comprehensive income, referred to as stranded tax effects in the update, do not reflect the appropriate tax rate. The amendments in ASU No. 2018-02 allow a reclassification from accumulated other comprehensive income to retained earnings for the stranded tax effects resulting from the Tax Cuts and Jobs Act. Because the amendments only relate to the reclassification of the income tax effects of the Tax Cuts and Jobs Act, the underlying guidance that requires that the effect of a change in tax laws or rates be included in income from continuing operations is not affected. Upon adoption, LCNB reclassified stranded tax effects of $492,000 into retained earnings as of January 1, 2018. Revenue Recognition Accounting Standards Codification 606, "Revenue from Contracts with Customers" ("ASC 606") provides that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance enumerates five steps that entities should follow in achieving this core principle. Revenue generated from financial instruments, including loans and investment securities, are not included in the scope of ASC 606. The adoption of ASC 606 did not result in a change to the accounting for any of LCNB's revenue streams that are within the scope of the amendments. Revenue-generating activities that are within the scope of ASC 606 and that are presented as non-interest income in LCNB's consolidated statements of income include: • Fiduciary income - this includes periodic fees due from trust and investment services customers for managing the customers' financial assets. Fees are generally charged on a quarterly or annual basis and are recognized ratably throughout the period, as the services are provided on an ongoing basis. • Service charges and fees on deposit accounts - these include general service fees charged for deposit account maintenance and activity and transaction-based fees charged for certain services, such as debit card, wire transfer, or overdraft activities. Revenue is recognized when the performance obligation is completed, which is generally after a transaction is completed or monthly for account maintenance services.

Acquisition

Acquisition	9 Months Ended
Acquisition	Sep. 30, 2018
Business Combinations [Abstract]
Acquisitions	Acquisition On December 20, 2017, LCNB and Columbus First Bancorp, Inc. (“CFB”) entered into an Agreement and Plan of Merger (“Merger Agreement”) pursuant to which CFB merged with and into LCNB on May 31, 2018. Immediately following the merger of CFB into LCNB, Columbus First Bank, a wholly-owned subsidiary of CFB, merged into the Bank. Columbus First Bank operated from one full-service office located in Worthington, Ohio. That office became a branch of the Bank after the merger. Under the terms of the Merger Agreement, the shareholders of CFB received two shares of LCNB common stock for each outstanding CFB common share. Unexercised stock options of CFB were canceled in exchange for a cash payment. The merger with CFB was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed, and consideration paid were recorded at their estimated fair values as of the merger date. The estimated fair values reported in LCNB's Form 10-Q for the quarterly period ended June 30, 2018 were preliminary, as the pricing study had not been finalized at that time. The following table summarizes the preliminary balances at June 30, 2018, revisions to the preliminary balances, and the balances at September 30, 2018 (in thousands): June 30, 2018 Fair Value Adjustments September 30, 2018 Consideration Paid: Common shares issued (3,253,060 shares issued at $19.55 per share) $ 63,598 $ — $ 63,598 Cash paid to cancel share based payment awards 783 — 783 64,381 — 64,381 Identifiable Assets Acquired: Cash and cash equivalents 13,679 — 13,679 Interest-bearing time deposits 10,350 — 10,350 Federal Home Loan Bank stock 1,207 — 1,207 Loans, net 282,748 (615 ) 282,133 Loans held for sale, net 1,819 — 1,819 Premises and equipment 102 — 102 Core deposit intangible 2,089 88 2,177 Other real estate owned 35 — 35 Deferred income taxes — 352 352 Other assets 2,022 (716 ) 1,306 Total identifiable assets acquired 314,051 (891 ) 313,160 Liabilities Assumed: Deposits 245,036 (606 ) 244,430 Short-term borrowings 10,000 — 10,000 Long-term debt 22,920 23 22,943 Deferred income taxes 200 (200 ) — Other liabilities 491 19 510 Total liabilities assumed 278,647 (764 ) 277,883 Total Identifiable Net Assets Acquired 35,404 (127 ) 35,277 Goodwill resulting from merger $ 28,977 $ 127 $ 29,104 As permitted by ASC No. 805-10-25, Business Combinations, the above estimated amounts may be adjusted up to one year after the closing date of the acquisition to reflect any new information obtained about facts and circumstances existing at the acquisition date. Any changes in the estimated fair values will be recognized in the period the adjustment is identified. The amount of goodwill recorded reflects LCNB's expansion in the Columbus market and related synergies that are expected to result from the acquisition and represents the excess purchase price over the estimated fair value of the net assets acquired. The goodwill will not be amortizable on LCNB's financial records and will not be deductible for tax purposes. Goodwill will be subject to an annual test for impairment and the amount impaired, if any, will be charged to expense at the time of impairment. The core deposit intangible will be amortized over the estimated weighted average economic life of the various core deposit types. Direct costs related to the acquisition were expensed as incurred and are recorded as a merger-related expense in the consolidated condensed statements of income. CFB's results of operations are included in the consolidated condensed statements of income from the date of the merger. The amount of CFB's revenue (net interest income plus non-interest income) and net income, excluding merger-related expenses, included in LCNB's consolidated condensed statement of income for the three and nine months ended September 30, 2018 were as follows (in thousands): Three Months Nine Months Total revenue $ 2,992 3,898 Net income 1,608 2,077 The following table presents unaudited pro forma information as if the merger with CFB had occurred on January 1, 2017 (in thousands). This pro forma information gives effect to certain adjustments, including purchase accounting fair value adjustments, amortization of the core deposit intangible, and related income tax effects. It does not include merger and data conversion costs. The pro forma information does not necessarily reflect the results of operations that would have occurred had the merger with CFB occurred in 2017. In particular, expected operational cost savings are not reflected in the pro forma amounts. Three Months Ended Nine Months Ended 2018 2017 2018 2017 Total revenue $ 16,024 15,808 47,978 46,978 Net income 4,478 3,852 12,514 11,762 Basic earnings per common share 0.29 0.29 0.88 0.89 Diluted earnings per common share 0.29 0.29 0.88 0.89

Investment Securities

Investment Securities	9 Months Ended
Investment Securities	Sep. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The amortized cost and estimated fair value of equity and debt securities at September 30, 2018 and December 31, 2017 are summarized as follows (in thousands): Amortized Unrealized Unrealized Fair September 30, 2018 Debt Securities, Available-for-Sale: U.S. Treasury notes $ 2,279 $ — $ 95 $ 2,184 U.S. Agency notes 80,738 — 3,566 77,172 U.S. Agency mortgage-backed securities 59,734 8 2,950 56,792 Municipal securities: Non-taxable 93,979 45 2,340 91,684 Taxable 19,914 80 389 19,605 $ 256,644 $ 133 $ 9,340 $ 247,437 Debt Securities, Held-to-Maturity: Municipal securities: Non-taxable $ 27,979 $ 30 $ 827 $ 27,182 Taxable 3,700 — 225 3,475 $ 31,679 $ 30 $ 1,052 $ 30,657 December 31, 2017 Equity Securities with a Readily Determinable Fair Value: Mutual funds $ 1,586 2 46 1,542 Trust preferred securities 49 1 — 50 Equity securities $ 475 97 4 568 2,110 $ 100 $ 50 $ 2,160 Debt Securities, Available-for-Sale: U.S. Treasury notes $ 2,283 $ — $ 24 $ 2,259 U.S. Agency notes 84,837 57 1,633 83,261 U.S. Agency mortgage-backed securities 68,347 33 1,227 67,153 Municipal securities: Non-taxable 102,849 343 1,018 102,174 Taxable 20,313 175 122 20,366 $ 278,629 $ 608 $ 4,024 $ 275,213 Debt Securities, Held-to-Maturity: Municipal securities: Non-taxable $ 28,871 $ 101 $ 227 $ 28,745 Taxable 3,700 — 95 3,605 $ 32,571 $ 101 $ 322 $ 32,350 Information concerning debt securities with gross unrealized losses at September 30, 2018 and December 31, 2017 , aggregated by length of time that individual securities have been in a continuous loss position, is as follows (dollars in thousands): Less than Twelve Months Twelve Months or Greater Fair Value Unrealized Losses Fair Value Unrealized Losses September 30, 2018 Available-for-Sale: U.S. Treasury notes $ 948 $ 37 $ 1,236 $ 58 U.S. Agency notes 9,680 203 67,492 3,363 U.S. Agency mortgage-backed securities 4,527 88 51,948 2,862 Municipal securities: Non-taxable 52,974 741 30,890 1,599 Taxable 8,039 165 8,962 224 $ 76,168 $ 1,234 $ 160,528 $ 8,106 Held-to-Maturity: Municipal securities: Non-taxable $ 14,331 634 6,237 193 Taxable 399 1 3,076 224 $ 14,730 $ 635 $ 9,313 $ 417 December 31, 2017 Available-for-Sale: U.S. Treasury notes $ 2,259 $ 24 $ — $ — U.S. Agency notes 33,651 344 44,560 1,289 U.S. Agency mortgage-backed securities 24,433 142 41,080 1,085 Municipal securities: Non-taxable 36,348 315 24,197 703 Taxable 11,068 114 1,032 8 $ 107,759 $ 939 $ 110,869 $ 3,085 Held-to-Maturity: Municipal securities: Non-taxable $ 9,824 $ 133 $ 3,542 $ 94 Taxable — — 3,205 95 $ 9,824 $ 133 $ 6,747 $ 189 Management has determined that the unrealized losses at September 30, 2018 are primarily due to fluctuations in market interest rates and do not reflect credit quality deterioration of the securities. Because LCNB does not have the intent to sell the investments and it is more likely than not that LCNB will not be required to sell the investments before recovery of their amortized cost bases, which may be at maturity, LCNB does not consider these investments to be other-than-temporarily impaired. Contractual maturities of debt securities at September 30, 2018 were as follows (in thousands). Actual maturities may differ from contractual maturities when issuers have the right to call or prepay obligations. Available-for-Sale Held-to-Maturity Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 15,203 $ 15,152 $ 3,240 $ 3,245 Due from one to five years 103,857 101,130 4,066 3,971 Due from five to ten years 75,648 72,306 8,649 8,373 Due after ten years 2,202 2,057 15,724 15,068 196,910 190,645 31,679 30,657 U.S. Agency mortgage-backed securities 59,734 56,792 — — $ 256,644 $ 247,437 $ 31,679 $ 30,657 Debt securities with a market value of $130,951,000 and $108,751,000 at September 30, 2018 and December 31, 2017 , respectively, were pledged to secure public deposits and for other purposes required or as permitted by law. Certain information concerning the sale of debt securities available for sale for the three and nine months ended September 30, 2018 and 2017 was as follows (in thousands): Three Months Ended Nine Months Ended 2018 2017 2018 2017 Proceeds from sales $ 5,202 $ 14,164 $ 8,545 $ 26,407 Gross realized gains 14 78 21 218 Gross realized losses 21 — 29 — Realized gains or losses from the sale of securities are computed using the specific identification method. Beginning January 1, 2018, equity securities with a readily determinable fair value are carried at fair value, with changes in fair value recognized in other operating income in the consolidated condensed statements of income. Equity securities without a readily determinable fair value are measured at cost minus impairment, if any, plus or minus any changes resulting from observable price changes in orderly transactions, as defined, for identical or similar investments of the same issuer. LCNB was not aware of any impairment or observable price change adjustments that needed to be made at September 30, 2018 on its investments in equity securities without a readily determinable fair value. The amortized cost and estimated fair value of equity securities with a readily determinable fair value at September 30, 2018 are summarized as follows (in thousands): Amortized Fair Mutual funds $ 1,633 $ 1,547 Trust preferred securities 49 50 Equity securities 481 603 Total equity securities with a readily determinable fair value $ 2,163 $ 2,200 Certain information concerning changes in fair value of equity securities with a readily determinable fair value for the nine months ended September 30, 2018 was as follows (in thousands): Net gains recognized $ 12 Less net realized gains on equity securities sold 25 Unrealized losses recognized and still held at period end $ (13 )

Loans

Loans	9 Months Ended
Loans	Sep. 30, 2018
Receivables [Abstract]
Loans	Loans Major classifications of loans at September 30, 2018 and December 31, 2017 are as follows (in thousands): September 30, 2018 December 31, 2017 Commercial and industrial $ 78,002 $ 36,057 Commercial, secured by real estate 704,987 527,947 Residential real estate 347,920 251,582 Consumer 17,505 17,450 Agricultural 13,280 15,194 Other loans, including deposit overdrafts 498 539 Loans, gross 1,162,192 848,769 Deferred origination costs, net 133 291 Loans, net of deferred origination costs 1,162,325 849,060 Less allowance for loan losses 4,016 3,403 Loans, net $ 1,158,309 $ 845,657 Non-accrual, past-due, and accruing restructured loans as of September 30, 2018 and December 31, 2017 are as follows (in thousands): September 30, 2018 December 31, 2017 Non-accrual loans: Commercial and industrial $ — $ — Commercial, secured by real estate 1,785 2,183 Residential real estate 627 604 Consumer 14 — Agricultural 177 178 Total non-accrual loans 2,603 2,965 Past-due 90 days or more and still accruing 1 — Total non-accrual and past-due 90 days or more and still accruing 2,604 2,965 Accruing restructured loans 10,307 10,469 Total $ 12,911 $ 13,434 The allowance for loan losses for the three and nine months ended September 30, 2018 and 2017 are as follows (in thousands): Commercial & Industrial Commercial, Secured by Real Estate Residential Real Estate Consumer Agricultural Other Total Three Months Ended September 30, 2018 Balance, beginning of period $ 407 $ 2,383 $ 690 $ 70 $ 52 $ 1 $ 3,603 Provision charged to expenses (3 ) 488 25 95 2 52 659 Losses charged off — (116 ) — (88 ) — (81 ) (285 ) Recoveries — 3 — 4 — 32 39 Balance, end of period $ 404 $ 2,758 $ 715 $ 81 $ 54 $ 4 $ 4,016 Nine Months Ended September 30, 2018 Balance, beginning of year $ 378 $ 2,178 $ 717 $ 76 $ 53 $ 1 $ 3,403 Provision charged to expenses 26 546 211 102 1 76 962 Losses charged off — (145 ) (227 ) (109 ) — (142 ) (623 ) Recoveries — 179 14 12 — 69 274 Balance, end of period $ 404 $ 2,758 $ 715 $ 81 $ 54 $ 4 $ 4,016 Three Months Ended September 30, 2017 Balance, beginning of period $ 273 $ 2,136 $ 822 $ 86 $ 61 $ 4 $ 3,382 Provision charged to expenses 8 (9 ) (139 ) (6 ) 113 21 (12 ) Losses charged off — (118 ) — (30 ) — (37 ) (185 ) Recoveries 19 106 38 44 — 15 222 Balance, end of period $ 300 $ 2,115 $ 721 $ 94 $ 174 $ 3 $ 3,407 Nine Months Ended September 30, 2017 Balance, beginning of year $ 350 $ 2,179 $ 885 $ 96 $ 60 $ 5 3,575 Provision charged to expenses (84 ) 287 (137 ) (3 ) 114 48 225 Losses charged off — (462 ) (135 ) (84 ) — (98 ) (779 ) Recoveries 34 111 108 85 — 48 386 Balance, end of period $ 300 $ 2,115 $ 721 $ 94 $ 174 $ 3 $ 3,407 A breakdown of the allowance for loan losses and the loan portfolio by loan segment at September 30, 2018 and December 31, 2017 are as follows (in thousands): Commercial Commercial, Secured by Residential Consumer Agricultural Other Total September 30, 2018 Allowance for loan losses: Individually evaluated for impairment $ 10 $ 3 $ 26 $ — $ — $ — $ 39 Collectively evaluated for impairment 394 2,755 689 81 54 4 3,977 Acquired credit impaired loans — — — — — — — Balance, end of period $ 404 $ 2,758 $ 715 $ 81 $ 54 $ 4 $ 4,016 Loans: Individually evaluated for impairment $ 276 $ 10,529 $ 1,151 $ 50 $ 177 $ — $ 12,183 Collectively evaluated for impairment 76,643 686,654 343,912 17,566 13,120 119 1,138,014 Acquired credit impaired loans 1,136 7,352 3,261 — — 379 12,128 Balance, end of period $ 78,055 $ 704,535 $ 348,324 $ 17,616 $ 13,297 $ 498 $ 1,162,325 December 31, 2017 Allowance for loan losses: Individually evaluated for impairment $ 8 $ 146 $ 29 $ 8 $ — $ — $ 191 Collectively evaluated for impairment 370 2,032 688 68 53 1 3,212 Acquired credit impaired loans — — — — — — — Balance, end of period $ 378 $ 2,178 $ 717 $ 76 $ 53 $ 1 $ 3,403 Loans: Individually evaluated for impairment $ 303 $ 11,289 $ 1,351 $ 47 $ 177 $ — $ 13,167 Collectively evaluated for impairment 34,792 512,259 248,674 17,516 15,033 137 828,411 Acquired credit impaired loans 1,008 4,048 2,024 — — 402 7,482 Balance, end of period $ 36,103 $ 527,596 $ 252,049 $ 17,563 $ 15,210 $ 539 $ 849,060 The risk characteristics of LCNB's material loan portfolio segments are as follows: Commercial and Industrial Loans. LCNB’s commercial and industrial loan portfolio consists of loans for various purposes, including loans to fund working capital requirements (such as inventory and receivables financing) and purchases of machinery and equipment. LCNB offers a variety of commercial and industrial loan arrangements, including term loans, balloon loans, and lines of credit. Most commercial and industrial loans have a fixed rate, with maturities ranging from one to ten years . Commercial and industrial loans are offered to businesses and professionals for short and medium terms on both a collateralized and uncollateralized basis. Commercial and industrial loans typically are underwritten on the basis of the borrower’s ability to make repayment from the cash flow of the business. Collateral, when obtained, may include liens on furniture, fixtures, equipment, inventory, receivables, or other assets. As a result, such loans involve complexities, variables, and risks that require thorough underwriting and more robust servicing than other types of loans. Commercial, Secured by Real Estate Loans. Commercial real estate loans include loans secured by a variety of commercial, retail, and office buildings, religious facilities, hotels, multifamily (more than four-family) residential properties, construction and land development loans, and other land loans. Commercial real estate loan products generally amortize over five to twenty-five years and are payable in monthly principal and interest installments. Some have balloon payments due within one to ten years after the origination date. The majority have adjustable interest rates with adjustment periods ranging from one to ten years, some of which are subject to established “floor” interest rates. Commercial real estate loans are underwritten based on the ability of the property, in the case of income producing property, or the borrower’s business to generate sufficient cash flow to amortize the debt. Secondary emphasis is placed upon global debt service, collateral value, financial strength of any and all guarantors, and other factors. Commercial real estate loans are generally originated with a 75% to 85% maximum loan to appraised value ratio, depending upon borrower occupancy. Residential Real Estate Loans. Residential real estate loans include loans secured by first or second mortgage liens on one to four-family residential properties. Home equity lines of credit and mortgage loans secured by owner-occupied agricultural property are included in this category. First and second mortgage loans are generally amortized over five to thirty years with monthly principal and interest payments. Home equity lines of credit generally have a five year or less draw period with interest only payments followed by a repayment period with monthly payments based on the amount outstanding. LCNB offers both fixed and adjustable rate mortgage loans. Adjustable rate loans are available with adjustment periods ranging between one to ten years and adjust according to an established index plus a margin, subject to certain floor and ceiling rates. Home equity lines of credit have a variable rate based on the Wall Street Journal prime rate plus a margin. LCNB does not originate reverse mortgage loans or residential real estate loans generally considered to be “subprime.” Residential real estate loans are underwritten primarily based on the borrower’s ability to repay, prior credit history, and the value of the collateral. LCNB generally requires private mortgage insurance for first mortgage loans that have a loan to appraised value ratio of greater than 80% . Consumer Loans. LCNB’s portfolio of consumer loans generally includes secured and unsecured loans to individuals for household, family and other personal expenditures. Secured loans include loans to fund the purchase of automobiles, recreational vehicles, boats, and similar acquisitions. Consumer loans made by LCNB generally have fixed rates and terms ranging up to 72 months, depending upon the nature of the collateral, size of the loan, and other relevant factors. Consumer loans generally have higher interest rates, but pose additional risks of collectability and loss when compared to certain other types of loans. Collateral, if present, is generally subject to damage, wear, and depreciation. The borrower’s ability to repay is of primary importance in the underwriting of consumer loans. Agricultural Loans. LCNB’s portfolio of agricultural loans includes loans for financing agricultural production or for financing the purchase of equipment used in the production of agricultural products. LCNB’s agricultural loans are generally secured by farm machinery, livestock, crops, vehicles, or other agricultural-related collateral. LCNB uses a risk-rating system to quantify loan quality. A loan is assigned to a risk category based on relevant information about the ability of the borrower to service the debt including, but not limited to, current financial information, historical payment experience, credit documentation, public information, and current economic trends. The categories used are: • Pass – loans categorized in this category are higher quality loans that do not fit any of the other categories described below. • Other Assets Especially Mentioned ("OAEM") – loans in this category are currently protected but are potentially weak. These loans constitute a risk but not to the point of justifying a classification of substandard. The credit risk may be relatively minor yet constitute an undue risk in light of the circumstances surrounding a specific asset. • Substandard – loans in this category are inadequately protected by the current sound net worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the possibility that LCNB will sustain some loss if the deficiencies are not corrected. • Doubtful – loans classified in this category have all the weaknesses inherent in loans classified as substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. A breakdown of the loan portfolio by credit quality indicators at September 30, 2018 and December 31, 2017 is as follows (in thousands): Pass OAEM Substandard Doubtful Total September 30, 2018 Commercial & industrial $ 74,748 $ 1,417 $ 1,890 $ — $ 78,055 Commercial, secured by real estate 683,230 1,549 19,756 — 704,535 Residential real estate 345,478 — 2,846 — 348,324 Consumer 17,567 — 49 — 17,616 Agricultural 13,120 — 177 — 13,297 Other 498 — — — 498 Total $ 1,134,641 $ 2,966 $ 24,718 $ — $ 1,162,325 December 31, 2017 Commercial & industrial $ 35,683 $ 176 $ 244 $ — $ 36,103 Commercial, secured by real estate 506,833 2,180 18,583 — 527,596 Residential real estate 250,039 — 2,010 — 252,049 Consumer 17,522 — 41 — 17,563 Agricultural 14,233 — 977 — 15,210 Other 539 — — — 539 Total $ 824,849 $ 2,356 $ 21,855 $ — $ 849,060 A loan portfolio aging analysis at September 30, 2018 and December 31, 2017 is as follows (in thousands): 30-59 Days Past Due 60-89 Days Past Due Greater Than 90 Days Past Due Total Past Due Current Total Loans Receivable Total Loans Greater Than 90 Days and Accruing September 30, 2018 Commercial & industrial $ 1 $ — $ — $ 1 $ 78,054 $ 78,055 $ — Commercial, secured by real estate 569 139 309 1,017 703,518 704,535 — Residential real estate 878 303 354 1,535 346,789 348,324 — Consumer 9 10 15 34 17,582 17,616 1 Agricultural — — 177 177 13,120 13,297 — Other 69 — — 69 429 498 — Total $ 1,526 $ 452 $ 855 $ 2,833 $ 1,159,492 $ 1,162,325 $ 1 December 31, 2017 Commercial & industrial $ — $ — $ — $ — $ 36,103 $ 36,103 $ — Commercial, secured by real estate 124 — 598 722 526,874 527,596 — Residential real estate 362 135 496 993 251,056 252,049 — Consumer 29 2 — 31 17,532 17,563 — Agricultural — — 177 177 15,033 15,210 — Other 82 — — 82 457 539 — Total $ 597 $ 137 $ 1,271 $ 2,005 $ 847,055 $ 849,060 $ — Impaired loans, including acquired credit impaired loans, at September 30, 2018 and December 31, 2017 are as follows (in thousands): September 30, 2018 December 31, 2017 Recorded Investment Unpaid Principal Balance Related Allowance Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Commercial & industrial $ 1,141 $ 1,667 $ — $ 1,015 $ 1,100 $ — Commercial, secured by real estate 17,730 19,082 — 12,677 13,608 — Residential real estate 3,854 4,621 — 2,822 3,516 — Consumer 28 28 — 6 6 — Agricultural 177 177 — 177 177 — Other 379 515 — 402 554 — Total $ 23,309 $ 26,090 $ — $ 17,099 $ 18,961 $ — With an allowance recorded: Commercial & industrial $ 271 $ 277 $ 10 $ 296 $ 301 $ 8 Commercial, secured by real estate 151 151 3 2,660 2,660 146 Residential real estate 558 601 26 553 572 29 Consumer 22 22 — 41 41 8 Agricultural — — — — — — Other — — — — — — Total $ 1,002 $ 1,051 $ 39 $ 3,550 $ 3,574 $ 191 Total: Commercial & industrial $ 1,412 $ 1,944 $ 10 $ 1,311 $ 1,401 $ 8 Commercial, secured by real estate 17,881 19,233 3 15,337 16,268 146 Residential real estate 4,412 5,222 26 3,375 4,088 29 Consumer 50 50 — 47 47 8 Agricultural 177 177 — 177 177 — Other 379 515 — 402 554 — Total $ 24,311 $ 27,141 $ 39 $ 20,649 $ 22,535 $ 191 The following presents information related to the average recorded investment and interest income recognized on impaired loans, including acquired credit impaired loans, for the three and nine months ended September 30, 2018 and 2017 (in thousands): 2018 2017 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Three Months Ended September 30, With no related allowance recorded: Commercial & industrial $ 1,261 $ 35 $ 945 $ 10 Commercial, secured by real estate 17,364 269 13,671 184 Residential real estate 3,935 77 3,268 45 Consumer 68 1 16 — Agricultural 177 — 142 — Other 374 10 438 12 Total $ 23,179 $ 392 $ 18,480 $ 251 With an allowance recorded: Commercial & industrial $ 276 $ 4 $ 306 $ 4 Commercial, secured by real estate 152 3 2,970 11 Residential real estate 573 8 604 7 Consumer 23 — 43 1 Agricultural — — 178 — Other — — — — Total $ 1,024 $ 15 $ 4,101 $ 23 Total: Commercial & industrial $ 1,537 $ 39 $ 1,251 $ 14 Commercial, secured by real estate 17,516 272 16,641 195 Residential real estate 4,508 85 3,872 52 Consumer 91 1 59 1 Agricultural 177 — 320 — Other 374 10 438 12 Total $ 24,203 $ 407 $ 22,581 $ 274 Nine Months Ended September 30, With no related allowance recorded: Commercial & industrial $ 950 $ 56 $ 603 $ 46 Commercial, secured by real estate 16,143 657 14,099 685 Residential real estate 3,420 174 3,280 180 Consumer 37 2 24 2 Agricultural 177 — 57 — Other 390 31 450 43 Total $ 21,117 $ 920 $ 18,513 $ 956 With an allowance recorded: Commercial & industrial $ 283 $ 13 $ 314 $ 13 Commercial, secured by real estate 154 9 3,085 35 Residential real estate 577 23 634 23 Consumer 24 1 43 2 Agricultural — — 240 — Other — — — — Total $ 1,038 $ 46 $ 4,316 $ 73 Total: Commercial & industrial $ 1,233 $ 69 $ 917 $ 59 Commercial, secured by real estate 16,297 666 17,184 720 Residential real estate 3,997 197 3,914 203 Consumer 61 3 67 4 Agricultural 177 — 297 — Other 390 31 450 43 Total $ 22,155 966 $ 22,829 $ 1,029 Of the interest income recognized on impaired loans during the nine months ended September 30, 2018 and 2017 , approximately $85,000 and $3,000 , respectively, were recognized on a cash basis. From time to time, the terms of certain loans are modified as troubled debt restructurings ("TDRs") where concessions are granted to borrowers experiencing financial difficulties. The modification of the terms of such loans may have included one, or a combination of, the following: a temporary or permanent reduction of the stated interest rate of the loan, an increase in the stated rate of interest lower than the current market rate for new debt with similar risk, forgiveness of principal, an extension of the maturity date, or a change in the payment terms. Loan modifications that were classified as TDRs during the three and nine months ended September 30, 2018 and 2017 were as follows: 2018 2017 Number of Loans Pre-Modification Recorded Balance Post-Modification Recorded Balance Number of Loans Pre-Modification Recorded Balance Post-Modification Recorded Balance Three Months Ended September 30, Commercial and industrial 0 $ — — 0 $ — — Commercial, secured by real estate 0 — — 0 — — Residential real estate 1 199 199 0 — — Consumer 0 — — 0 — — Total 1 $ 199 199 0 $ — — Nine Months Ended September 30, Commercial and industrial 0 $ — — 0 $ — — Commercial, secured by real estate 0 — — 0 — — Residential real estate 1 199 199 1 18 9 Consumer 0 — — 1 14 14 Total 1 $ 199 199 2 $ 32 23 Post-modification balances of newly restructured troubled debt by type of modification for the three and nine months ended September 30, 2018 and 2017 were as follows (in thousands): Term Modification Rate Modification Interest Only Principal Forgiveness Combination Total Modifications Three Months Ended September 30, 2018 Commercial & industrial $ — $ — $ — $ — $ — $ — Commercial, secured by real estate — — — — — — Residential real estate 199 — — — — 199 Consumer — — — — — — Total $ 199 $ — $ — $ — $ — $ 199 Nine Months Ended September 30, 2018 Commercial & industrial $ — $ — $ — $ — $ — $ — Commercial, secured by real estate — — — — — — Residential real estate 199 — — — — 199 Consumer — — — — — — Total $ 199 $ — $ — $ — $ — $ 199 Three Months Ended September 30, 2017 Commercial & industrial $ — $ — $ — $ — $ — $ — Commercial, secured by real estate — — — — — — Residential real estate — — — — — — Consumer — — — — — — Total $ — $ — $ — $ — $ — $ — Nine Months Ended September 30, 2017 Commercial & industrial $ — $ — $ — $ — $ — $ — Commercial, secured by real estate — — — — — — Residential real estate — — — 9 — 9 Consumer 14 — — — — 14 Total $ 14 $ — $ — $ 9 $ — $ 23 Two commercial, secured by real estate loans to the same borrower totaling $1,236,000 that were modified during the fourth quarter 2016 subsequently defaulted in February 2017. There were no troubled debt restructurings that subsequently defaulted within twelve months of the restructuring date for the nine months ended September 30, 2018 and that remained in default at period end. Information concerning loans that were modified during the nine months ended September 30, 2018 and 2017 and that were determined to be troubled debt restructurings follows (in thousands): Modified During the Nine Months Ended September 30, 2018 2017 Impaired loans without a valuation allowance at the end of the period 199 0 Impaired loans with a valuation allowance at the end of the period 0 23 Mortgage loans sold to and serviced for investors are not included in the accompanying consolidated condensed balance sheets. The unpaid principal balances of those loans at September 30, 2018 and December 31, 2017 were approximately $115,647,000 and $92,818,000 , respectively. The total recorded investment in residential consumer mortgage loans secured by residential real estate that were in the process of foreclosure at September 30, 2018 was $392,000 .

Acquired Credit Impaired Loans

Acquired Credit Impaired Loans	9 Months Ended
Acquired Credit Impaired Loans	Sep. 30, 2018
Receivables [Abstract]
Acquired Credit Impaired Loans	Acquired Credit Impaired Loans Loans acquired through mergers are recorded at fair value with no carryover of the acquired entity's previously established allowance for loan losses. The excess of expected cash flows over the estimated fair value of acquired loans is recognized as interest income over the remaining contractual lives of the loans using the level yield method. Subsequent decreases in expected cash flows will require additions to the allowance for loan losses. Subsequent improvements in expected cash flows result in the recognition of additional interest income over the then-remaining contractual lives of the loans. Impaired loans acquired are accounted for under FASB Accounting Standards Codification ("ASC") 310-30. Factors considered in evaluating whether an acquired loan was impaired include delinquency status and history, updated borrower credit status, collateral information, and updated loan-to-value information. The difference between contractually required payments at the time of acquisition and the cash flows expected to be collected is referred to as the nonaccretable difference. The interest component of the cash flows expected to be collected is referred to as the accretable yield and is recognized as interest income over the remaining contractual life of the loan using the level yield method. Subsequent decreases in expected cash flows will require additions to the allowance for loan losses. Subsequent improvements in expected cash flows will result in a reclassification from the nonaccretable difference to the accretable yield. The following table provides certain information at the acquisition date on loans acquired from CFB, not including loans considered to be impaired (in thousands): Contractually required principal at acquisition 281,639 Less fair value adjustment 1,801 Fair value of acquired loans 279,838 Contractual cash flows not expected to be collected 1,905 The following table provides details at the acquisition date on acquired impaired loans obtained through the merger with CFB that are accounted for in accordance with FASB ASC 310-30 (in thousands): Contractually required principal at acquisition 4,989 Less contractual cash flows not expected to be collected (nonaccretable difference) 906 Expected cash flows at acquisition 4,083 Less interest component of expected cash flows (accretable discount) 151 Fair value of acquired impaired loans 3,932 The following table provides at September 30, 2018 and December 31, 2017 the major classifications of acquired credit impaired loans that are accounted for in accordance with FASB ASC 310-30 (in thousands): September 30, 2018 December 31, 2017 Acquired from First Capital Bancshares, Inc. Commercial & industrial $ 14 $ 20 Commercial, secured by real estate 825 848 Residential real estate 919 947 Other loans, including deposit overdrafts — — Total $ 1,758 $ 1,815 Acquired from Eaton National Bank & Trust Co. Commercial & industrial $ 677 $ 988 Commercial, secured by real estate 1,588 1,699 Residential real estate 808 892 Other loans, including deposit overdrafts 379 402 Total $ 3,452 $ 3,981 Acquired from BNB Bancorp, Inc. Commercial & industrial $ — $ — Commercial, secured by real estate 1,412 1,501 Residential real estate 161 185 Other loans, including deposit overdrafts — — Total $ 1,573 $ 1,686 Acquired from Columbus First Bancorp, Inc. Commercial & industrial $ 445 Commercial, secured by real estate 3,527 Residential real estate 1,373 Other loans, including deposit overdrafts — Total $ 5,345 Total Commercial & industrial $ 1,136 $ 1,008 Commercial, secured by real estate 7,352 4,048 Residential real estate 3,261 2,024 Other loans, including deposit overdrafts 379 402 Total $ 12,128 $ 7,482 The following table provides the outstanding balance and related carrying amount for acquired credit impaired loans at the dates indicated (in thousands): September 30, 2018 December 31, 2017 Outstanding balance $ 14,732 $ 9,065 Carrying amount 12,128 7,482 Activity during the three and nine months ended September 30, 2018 and 2017 for the accretable discount related to acquired credit impaired loans is as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Accretable discount at beginning of period $ 633 $ 851 $ 669 $ 1,080 Accretable discount acquired during period 151 — 151 — Reclassification from nonaccretable discount to accretable discount — 2 — 160 Less disposals — — — (170 ) Less accretion (11 ) (40 ) (47 ) (257 ) Accretable discount at end of period $ 773 $ 813 $ 773 $ 813

Affordable Housing Tax Credit L

Affordable Housing Tax Credit Limited Partnership	9 Months Ended
Affordable Housing Tax Credit Limited Partnership	Sep. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Affordable Housing Tax Credit Limited Partnership	Affordable Housing Tax Credit Limited Partnership LCNB is a limited partner in limited partnerships that sponsor affordable housing projects utilizing the Low Income Housing Tax Credit ("LIHTC") pursuant to Section 42 of the Internal Revenue Code. The purpose of the investments is to achieve a satisfactory return on capital, to facilitate the sale of additional affordable housing product offerings, and to assist in achieving goals associated with the Community Reinvestment Act. The primary activities of the limited partnerships include the identification, development, and operation of multi-family housing that is leased to qualifying residential tenants. The following table presents the balances of LCNB's affordable housing tax credit investments and related unfunded commitments at September 30, 2018 and December 31, 2017 (in thousands): September 30, December 31, Affordable housing tax credit investment $ 5,000 $ 3,000 Less amortization 400 231 Net affordable housing tax credit investment $ 4,600 $ 2,769 Unfunded commitment $ 3,522 $ 2,257 The net affordable housing tax credit investment is included in other assets and the unfunded commitment is included in accrued interest and other liabilities in the consolidated condensed balance sheets. LCNB expects to fund the unfunded commitment over 10.0 years . The following table presents other information relating to LCNB's affordable housing tax credit investments for the nine months ended September 30, 2018 and 2017 (in thousands): 2018 2017 Tax credits and other tax benefits recognized $ 168 $ 119 Tax credit amortization expense included in provision for income taxes 169 126

Premises Held for Sale, Net (No

Premises Held for Sale, Net (Notes)	9 Months Ended
Premises Held for Sale, Net (Notes)	Sep. 30, 2018
Premises Held for Sale, Net [Abstract]
Premises Held for Sale, Net	Premises Held for Sale, Net During the fourth quarter 2018, LCNB sold a branch building. The sale price of the building was approximately $645,000 less than the carrying value, resulting in an impairment charge of the aforementioned amount. The new fair value of the premises held for sale at September 30, 2018 is $505,000 .

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets (Notes)	9 Months Ended
Goodwill and Other Intangible Assets (Notes)	Sep. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill The following table shows the changes in the carrying amount of goodwill for the nine months ended September 30, 2018 and 2017 (in thousands): 2018 2017 Balance, January 1 $ 30,183 $ 30,183 Goodwill acquired 29,104 — Balance, September 30 $ 59,287 $ 30,183

Borrowings

Borrowings	9 Months Ended
Borrowings	Sep. 30, 2018
Debt Disclosure [Abstract]
Borrowings	Borrowings Borrowings at September 30, 2018 and December 31, 2017 are as follows (dollars in thousands): September 30, 2018 December 31, 2017 Amount Rate Amount Rate FHLB short-term advances $ — — % $ 47,000 1.43 % FHLB long-term advances 23,079 1.86 % 303 2.82 % $ 23,079 1.86 % $ 47,303 1.44 % All advances from the Federal Home Loan Bank ("FHLB") of Cincinnati, both long-term and short-term, are secured by a blanket pledge of LCNB's 1-4 family first lien mortgage loans in the amount of approximately $301 million and $217 million at September 30, 2018 and December 31, 2017 , respectively. Additionally, LCNB is required to hold minimum levels of FHLB stock, based on the outstanding borrowings.

Income Taxes

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Tax Cuts and Jobs Act ("Tax Act") was enacted on December 22, 2017. Among other changes, the Tax Act reduced the maximum U.S. Federal corporate tax rate from 35% to 21%. A reconciliation between the statutory income tax and LCNB's effective tax rate on income from continuing operations follows: For the Three Months Ended For the Nine Months Ended 2018 2017 2018 2017 Statutory tax rate 21.0 % 35.0 % 21.0 % 35.0 % Increase (decrease) resulting from: Tax exempt interest (2.6 )% (6.4 )% (3.6 )% (6.4 )% Tax exempt income on bank owned life insurance (0.8 )% (1.6 )% (1.0 )% (1.9 )% Captive insurance premium income (0.8 )% — % (0.9 )% — % Other, net — % (1.9 )% 0.3 % (0.9 )% Effective tax rate 16.8 % 25.1 % 15.8 % 25.8 %

Commitments and Contingent Liab

Commitments and Contingent Liabilities	9 Months Ended
Commitments and Contingent Liabilities	Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	Commitments and Contingent Liabilities LCNB is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit. They involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the balance sheets. Exposure to credit loss in the event of nonperformance by the other parties to financial instruments for commitments to extend credit is represented by the contract amount of those instruments. The Bounce Protection product, a customer deposit overdraft program, is offered as a service and does not constitute a contract between the customer and LCNB. LCNB uses the same credit policies in making commitments and conditional obligations as it does for on-balance-sheet instruments. Financial instruments whose contract amounts represent off-balance-sheet credit risk at September 30, 2018 and December 31, 2017 are as follows (in thousands): September 30, 2018 December 31, 2017 Commitments to extend credit: Commercial loans $ 33,345 $ 18,964 Other loans Fixed rate 3,132 2,747 Adjustable rate 1,355 1,150 Unused lines of credit: Fixed rate 39,408 20,984 Adjustable rate 165,247 90,147 Unused overdraft protection amounts on demand and NOW accounts 16,297 16,441 Standby letters of credit 1,080 294 Total commitments $ 259,864 $ 150,727 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. Unused lines of credit include amounts not drawn on line of credit loans. Commitments to extend credit and unused lines of credit generally have fixed expiration dates or other termination clauses. LCNB evaluates each customer's credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management's credit evaluation of the borrower. Collateral held varies, but may include accounts receivable, inventory, residential realty, income-producing commercial property, agricultural property, and property, plant, and equipment. Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. These guarantees generally are fully secured and have varying maturities. Capital expenditures include the construction or acquisition of new office buildings, improvements to LCNB's offices, purchases of furniture and equipment, and additions or improvements to LCNB's information technology system. Commitments outstanding for capital expenditures as of September 30, 2018 totaled approximately $190,000 . Management believes that LCNB has sufficient liquidity to fund its lending and capital expenditure commitments. LCNB and its subsidiaries are parties to various claims and proceedings arising in the normal course of business. Management, after consultation with legal counsel, believes that the liabilities, if any, arising from such proceedings and claims will not be material to the consolidated financial position or results of operations.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	9 Months Ended
Accumulated Other Comprehensive Income	Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income (Loss) Changes in accumulated other comprehensive income (loss) for the nine months ended September 30, 2018 and the year ended December 31, 2017 are as follows (in thousands): Unrealized Gains and Losses on Available-for-Sale Securities Changes in Pension Plan Assets and Benefit Obligations Total Nine Months Ended September 30, 2018: Balance at beginning of period $ (2,200 ) $ (142 ) $ (2,342 ) Cumulative effect of changes in accounting principles (498 ) (27 ) (525 ) Balance at beginning of period, as adjusted (2,698 ) (169 ) (2,867 ) Before reclassifications (4,581 ) 9 (4,572 ) Reclassifications 6 — 6 Balance at end of period $ (7,273 ) $ (160 ) $ (7,433 ) Year Ended December 31, 2017: Balance at beginning of period $ (2,633 ) $ 16 $ (2,617 ) Before reclassifications 585 (158 ) 427 Reclassifications (152 ) — (152 ) Balance at end of period $ (2,200 ) $ (142 ) $ (2,342 ) Reclassifications out of accumulated other comprehensive income (loss) during the three and nine months ended September 30, 2018 and 2017 and the affected line items in the consolidated condensed statements of income are as follows (in thousands): Three Months Ended Nine Months Ended Affected Line Item in the Consolidated Condensed Statements of Income 2018 2017 2018 2017 Realized gain (loss) on sale of debt securities $ (7 ) $ 78 $ (8 ) $ 218 Net gain (loss) from sales of debt securities, available-for-sale Less provision for income taxes (2 ) 27 (2 ) 75 Provision for income taxes Reclassification adjustment, net of taxes $ (5 ) 51 (6 ) 143

Retirement Plans

Retirement Plans	9 Months Ended
Retirement Plans	Sep. 30, 2018
Retirement Benefits [Abstract]
Retirement Plans	Retirement Plans LCNB participates in a noncontributory defined benefit multi-employer retirement plan that covers substantially all regular full-time employees hired before January 1, 2009. Employees hired before this date who received a benefit reduction under certain amendments to the defined benefit retirement plan receive an automatic contribution of 5% or 7% of their annual compensation, depending on the sum of an employee's age and vesting service, into their defined contribution plans (401(k) plans), regardless of the contributions made by the employees. These contributions are made annually and these employees do not receive any employer matches to their 401(k) contributions. Employees hired on or after January 1, 2009 receive a 50% employer match on their contributions into the 401(k) plan, up to a maximum LCNB contribution of 3% of each individual employee's annual compensation. Funding and administrative costs of the qualified noncontributory defined benefit retirement plan and 401(k) plan charged to pension and other employee benefits in the consolidated condensed statements of income for the three and nine -month periods ended September 30, 2018 and 2017 are as follows (in thousands): For the Three Months For the Nine Months 2018 2017 2018 2017 Qualified noncontributory defined benefit retirement plan $ 279 267 $ 804 $ 789 401(k) plan 119 102 336 298 Certain highly compensated employees participate in a nonqualified defined benefit retirement plan. The nonqualified plan ensures that participants receive the full amount of benefits to which they would have been entitled under the noncontributory defined benefit retirement plan in the absence of limits on benefit levels imposed by certain sections of the Internal Revenue Code. This plan is limited to the original participants and no new participants have been added. The components of net periodic pension cost of the nonqualified defined benefit retirement plan for the three and nine months ended September 30, 2018 and 2017 are summarized as follows (in thousands): Three Months Ended Nine Months Ended 2018 2017 2018 2017 Service cost $ — — $ — $ — Interest cost 17 17 51 51 Amortization of unrecognized net loss 4 — 12 — Net periodic pension cost $ 21 17 $ 63 $ 51 Amounts recognized in accumulated other comprehensive income (loss), net of tax, at September 30, 2018 and December 31, 2017 for the nonqualified defined benefit retirement plan consists of (in thousands): September 30, 2018 December 31, 2017 Net actuarial (gain) loss $ 160 $ 142 Past service cost — — Total recognized, net of tax $ 160 $ 142

Stock Based Compensation

Stock Based Compensation	9 Months Ended
Stock Based Compensation	Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Based Compensation	The following table presents expense recorded in salaries and employee benefits for restricted stock awards and the related tax information for the three and nine months ended September 30, 2018 and 2017 (in thousands): For the Three Months Ended For the Nine Months Ended 2018 2017 2018 2017 Restricted stock expense $ 18 6 89 69 Tax effect 4 2 19 24

Earnings Per Common Share

Earnings Per Common Share	9 Months Ended
Earnings Per Common Share	Sep. 30, 2018
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings per Common Share LCNB has granted restricted stock awards with non-forfeitable dividend rights, which are considered participating securities. Accordingly, earnings per share is computed using the two-class method as required by FASB ASC 260-10-45. Basic earnings per common share is calculated by dividing net income allocated to common shareholders by the weighted average number of common shares outstanding during the period, which excludes the participating securities. Diluted earnings per common share is adjusted for the dilutive effects of stock options, warrants, and restricted stock. The diluted average number of common shares outstanding has been increased for the assumed exercise of stock options and warrants with proceeds used to purchase treasury shares at the average market price for the period. Earnings per share for the three and nine months ended September 30, 2018 and 2017 were calculated as follows (dollars in thousands, except share and per share data): For the Three Months Ended For the nine Months Ended 2018 2017 2018 2017 Net income $ 4,201 $ 3,106 $ 9,652 $ 9,355 Less allocation of earnings and dividends to participating securities 5 2 12 6 Net income allocated to common shareholders $ 4,196 $ 3,104 $ 9,640 $ 9,349 Weighted average common shares outstanding, gross 13,300,463 10,014,840 11,495,650 10,008,845 Less average participating securities 15,260 6,033 15,260 6,033 Weighted average number of shares outstanding used in the calculation of basic earnings per common share 13,285,203 10,008,807 11,480,390 10,002,812 Add dilutive effect of: Stock options 5,462 6,397 5,661 7,130 Adjusted weighted average number of shares outstanding used in the calculation of diluted earnings per common share 13,290,665 10,015,204 11,486,051 10,009,942 Earnings per common share: Basic $ 0.32 $ 0.31 $ 0.84 $ 0.93 Diluted 0.32 0.31 0.84 0.93 There were no anti-dilutive stock options outstanding at September 30, 2018 or 2017 .

Fair Value Measurements

Fair Value Measurements	9 Months Ended
Fair Value Measurements	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements LCNB measures certain assets at fair value using various valuation techniques and assumptions, depending on the nature of the asset. Fair value is defined as the price that would be received from the sale of an asset in an orderly transaction between market participants at the measurement date. The inputs to the valuation techniques used to measure fair value are assigned to one of three broad levels: • Level 1 – quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the reporting date. • Level 2 – inputs other than quoted prices included within level 1 that are observable for the asset or liability either directly or indirectly. Level 2 inputs may include quoted prices for similar assets in active markets, quoted prices for identical assets or liabilities in markets that are not active, inputs other than quoted prices (such as interest rates or yield curves) that are observable for the asset or liability, and inputs that are derived from or corroborated by observable market data. • Level 3 – inputs that are unobservable for the asset or liability. Equity Securities With a Readily Determinable Fair Value Equity securities with a readily determinable fair value are reported at fair value with changes in fair value reported in other operating income in the consolidated statements of income. Fair values for trust preferred and equity securities are determined based on market quotations (level 1). LCNB has invested in two mutual funds that are traded in active markets and their fair values are based on market quotations (level 1). Investments in another two mutual funds are measured at fair value using net asset values ("NAV") and are considered level 1 because the NAVs are determined and published and are the basis for current transactions. Debt Securities, Available-for-Sale The majority of LCNB's financial debt securities are classified as available-for-sale. The securities are reported at fair value with unrealized holding gains and losses reported net of income taxes in accumulated other comprehensive income (loss). LCNB utilizes a pricing service for determining the fair values of its debt securities. Methods and significant assumptions used to estimate fair value are as follows: • Fair value for U.S. Treasury notes are determined based on market quotations (level 1). • Fair values for the other debt securities are calculated using the discounted cash flow method for each security. The discount rates for these cash flows are estimated by the pricing service using rates observed in the market (level 2). Cash flow streams are dependent on estimated prepayment speeds and the overall structure of the securities given existing market conditions. Assets Recorded at Fair Value on a Nonrecurring Basis Assets that may be recorded at fair value on a nonrecurring basis include impaired loans, other real estate owned, and other repossessed assets. A loan is considered impaired when management believes it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement. Impaired loans are carried at the present value of estimated future cash flows using the loan's existing rate or the fair value of collateral if the loan is collateral dependent, if this value is less than the loan balance. These inputs are considered to be level 3. Other real estate owned is adjusted to fair value, less costs to sell, upon transfer of the loan to foreclosed assets, usually based on an appraisal of the property. Subsequently, foreclosed assets are carried at the lower of carrying value or fair value. Other repossessed assets are valued at estimated sales prices, less costs to sell. The inputs for real estate owned and other repossessed assets are considered to be level 3. The following table summarizes the valuation of LCNB's assets recorded at fair value by input levels as of September 30, 2018 and December 31, 2017 (in thousands): Fair Value Measurements at the End of the Reporting Period Using Fair Value Measurements Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) September 30, 2018 Recurring fair value measurements: Equity securities with a readily determinable fair value: Trust preferred securities $ 50 $ 50 $ — $ — Equity securities 603 603 — — Mutual funds 36 36 — — Mutual funds measured at net asset value 1,511 1,511 — — Debt securities available-for-sale: U.S. Treasury notes 2,184 2,184 — — U.S. Agency notes 77,172 — 77,172 — U.S. Agency mortgage-backed securities 56,792 — 56,792 — Municipal securities: Non-taxable 91,684 — 91,684 — Taxable 19,605 — 19,605 — Total recurring fair value measurements $ 249,637 $ 4,384 $ 245,253 $ — Nonrecurring fair value measurements: Impaired loans $ 963 $ — $ — $ 963 Other real estate owned and repossessed assets 35 — — 35 Total nonrecurring fair value measurements $ 998 $ — $ — $ 998 December 31, 2017 Recurring fair value measurements: Equity securities with a readily determinable fair value: Trust preferred securities $ 50 $ 50 $ — $ — Equity securities 568 568 — — Mutual funds 23 23 — — Mutual funds measured at net asset value 1,519 1,519 — — Debt securities available-for-sale: U.S. Treasury notes 2,259 2,259 — — U.S. Agency notes 83,261 — 83,261 — U.S. Agency mortgage-backed securities 67,153 — 67,153 — Municipal securities: Non-taxable 102,174 — 102,174 — Taxable 20,366 — 20,366 — Total recurring fair value measurements $ 277,373 $ 4,419 $ 272,954 $ — Nonrecurring fair value measurements: Impaired loans $ 3,359 $ — $ — $ 3,359 The following table presents quantitative information about unobservable inputs used in nonrecurring level 3 fair value measurements at September 30, 2018 and December 31, 2017 (dollars in thousands): Range Fair Value Valuation Technique Unobservable Inputs High Low Weighted Average September 30, 2018 Impaired loans $ 71 Estimated sales price Adjustments for comparable properties, discounts to reflect current market conditions Not applicable 892 Discounted cash flows Discount rate 8.25 % 4.50 % 6.94 % Other real estate owned 35 Estimated sales price Adjustments for comparable properties, discounts to reflect current market conditions Not applicable December 31, 2017 Impaired loans $ 1,753 Estimated sales price Adjustments for comparable properties, discounts to reflect current market conditions Not applicable 1,606 Discounted cash flows Discount rate 8.25 % 3.25 % 6.27 % Other real estate owned — Estimated sales price Adjustments for comparable properties, discounts to reflect current market conditions Not applicable Carrying amounts and estimated fair values of financial instruments as of September 30, 2018 and December 31, 2017 are as follows (in thousands): Fair Value Measurements at the End of Carrying Amount Fair Value Quoted Significant Other Observable Inputs Significant Unobservable Inputs September 30, 2018 FINANCIAL ASSETS: Cash and cash equivalents $ 19,812 $ 19,812 $ 19,812 $ — $ — Equity securities without a readily determinable fair value: Equity security 99 99 — — 99 Mutual fund 2,000 2,000 — — 2,000 Investment securities, held-to-maturity 31,679 30,657 — — 30,657 Federal Reserve Bank stock 4,653 4,653 4,653 — — Federal Home Loan Bank stock 4,845 4,845 4,845 — — Loans, net 1,158,309 1,104,951 — — 1,104,951 Accrued interest receivable 5,602 5,602 — 5,602 — FINANCIAL LIABILITIES: Deposits 1,371,023 1,371,030 1,071,476 299,554 — Long-term debt 23,079 24,234 — 24,234 — Accrued interest payable 582 582 — 582 — December 31, 2017 FINANCIAL ASSETS: Cash and cash equivalents $ 25,386 $ 25,386 $ 25,386 $ — $ — Equity securities without a readily determinable fair value: Equity security 99 99 — — 99 Mutual fund 1,000 1,000 — — 1,000 Investment securities, held-to-maturity 32,571 32,350 — — 32,350 Federal Reserve Bank stock 2,732 2,732 2,732 — — Federal Home Loan Bank stock 3,638 3,638 3,638 — — Loans, net 845,657 813,368 — — 813,368 Accrued interest receivable 3,511 3,511 — 3,511 — FINANCIAL LIABILITIES: Deposits 1,085,821 1,087,086 894,046 193,040 — Short-term borrowings 47,000 47,000 47,000 — — Long-term debt 303 307 — 307 — Accrued interest payable 329 329 — 329 — The fair values of off-balance-sheet financial instruments such as loan commitments and letters of credit are based on fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements. The fair values of such instruments were not material at September 30, 2018 and December 31, 2017 . Fair values of financial instruments are based on various assumptions, including the discount rate and estimates of future cash flows. Therefore, the fair values presented may not represent amounts that could be realized in actual transactions. In addition, because the required disclosures exclude certain financial instruments and all nonfinancial instruments, any aggregation of the fair value amounts presented would not represent the underlying value of LCNB. The following methods and assumptions were used to estimate the fair value of certain financial instruments: Cash and cash equivalents The carrying amounts presented are deemed to approximate fair value. Equity securities without a readily determinable fair value Equity securities without a readily determinable fair value are measured at cost, less impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. Investment securities, held-to-maturity Fair values for investment securities, held-to-maturity are based on quoted market prices for similar securities and/or discounted cash flow analysis or other methods. Federal Home Loan Bank stock and Federal Reserve Bank stock The carrying value of Federal Home Loan Bank and Federal Reserve Bank stock approximates fair value based on the respective redemptive provisions. Loans The estimated fair value of loans as of September 30, 2018 follows the guidance in ASU 2016-01, which prescribes an “exit price” approach in estimating and disclosing fair value of financial instruments. The fair value calculation at that date discounted estimated future cash flows using rates that incorporated discounts for credit, liquidity, and marketability factors. The fair value estimate shown as of December 31, 2017 used an “entry price” approach. The fair value calculation for that date discounted estimated future cash flows using current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities. Consequently, the fair value disclosures for September 30, 2018 and December 31, 2017 are not directly comparable. Deposits The fair value of demand deposits, savings accounts, and certain money market deposits is the amount payable on demand at the reporting date. The fair value of fixed-maturity certificates of deposit is estimated using the rates currently offered for deposits of similar remaining maturities, which approximates market rates. Borrowings The carrying amounts of federal funds purchased, repurchase agreements, and U.S. Treasury demand note borrowings are deemed to approximate fair value of short-term borrowings. For long-term debt, fair values are estimated based on the discounted value of expected net cash flows using current interest rates. Accrued interest receivable and Accrued interest payable Carrying amount approximates fair value.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
Recent Accounting Pronouncements	Sep. 30, 2018
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements From time to time the FASB issues an ASU to communicate changes to U.S. generally accepted accounting principles. The following information provides brief summaries of newly issued but not yet effective ASUs that could have an effect on LCNB’s financial position or results of operations: ASU No. 2016-02, "Leases (Topic 842)" ASU No. 2016-02 was issued in February 2016 and requires a lessee to recognize in the statement of financial position a liability to make lease payments ("the lease liability") and a right-of-use asset representing its right to use the underlying asset for the lease term, initially measured at the present value of the lease payments. When measuring assets and liabilities arising from a lease, the lessee should include payments to be made in optional periods only if the lessee is reasonably certain, as defined, to exercise an option to the lease or not to exercise an option to terminate the lease. Optional payments to purchase the underlying asset should be included if the lessee is reasonably certain it will exercise the purchase option. Most variable lease payments should be excluded except for those that depend on an index or a rate or are in substance fixed payments. A lessee shall classify a lease as a finance lease if it meets any of five listed criteria: 1. The lease transfers ownership of the underlying asset to the lessee by the end of the lease term. 2. The lease grants the lessee an option to purchase the underlying asset that the lessee is reasonably certain to exercise. 3. The lease term is for the major part of the remaining economic life of the underlying asset. 4. The present value of the sum of the lease payments and any residual value guaranteed by the lessee equals or exceeds substantially all of the fair value of the underlying asset. 5. The underlying asset is of such a specialized nature that it is expected to have no alternative use to the lessor at the end of the lease term. For finance leases, a lessee shall recognize in the statement of income interest on the lease liability separately from amortization of the right-of-use asset. Amortization of the right-of-use asset shall be on a straight-line basis, unless another basis is more representative of the pattern in which the lessee expects to consume the right-of-use asset’s future economic benefits. If the lease does not meet any of the five criteria, the lessee shall classify it as an operating lease and shall recognize a single lease cost on a straight-line basis over the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. The amendments in this update are to be applied using a modified retrospective approach, as defined, and are effective for public business entities for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2018. Early application is permitted. LCNB estimates that it will recognize discounted right-of-use assets and lease liabilities totaling approximately $5 million for current leases outstanding. This projection is based on various assumptions, including the level of interest rates and no significant increases in leasing activity, that may change between now and the effective date. ASU No. 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" ASU No. 2016-13 was issued in June 2016 and, once effective, will significantly change current guidance for recognizing impairment of financial instruments. Current guidance requires an "incurred loss" methodology for recognizing credit losses that delays recognition until it is probable a loss has been incurred. ASU No. 2016-13 replaces the incurred loss impairment methodology with a new methodology that reflects expected credit losses over the lives of the loans and requires consideration of a broader range of information to inform credit loss estimates. The ASU requires an organization to estimate all expected credit losses for financial assets measured at amortized cost, including loans and held-to-maturity debt securities, based on historical experience, current conditions, and reasonable and supportable forecasts. Additional disclosures are required. ASU No. 2016-13 also amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. Under the new guidance, entities will determine whether all or a portion of the unrealized loss on an available-for-sale debt security is a credit loss. Any credit loss will be recognized as an allowance for credit losses on available-for-sale debt securities rather than as a direct reduction of the amortized cost basis of the investment, as is currently required. As a result, entities will recognize improvements to estimated credit losses on available-for-sale debt securities immediately in earnings rather than as interest income over time, as currently required. ASU No. 2016-13 eliminates the current accounting model for purchased credit impaired loans and debt securities. Instead, purchased financial assets with credit deterioration will be recorded gross of estimated credit losses as of the date of acquisition and the estimated credit losses amounts will be added to the allowance for credit losses. Thereafter, entities will account for additional impairment of such purchased assets using the models listed above. ASU No. 2016-13 will take effect for SEC filers for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early application will be permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. While LCNB's Loan Committee expects that the implementation of ASU No. 2016-13 will increase the balance of the allowance for loan losses, it is continuing to evaluate the potential impact on LCNB's results of operations and financial position. The Loan Committee is currently analyzing its data collection efforts, pool segmentation, and reporting mechanisms to prepare for adoption of this ASU. The financial statement impact of this new standard cannot be reasonably estimated at this time. ASU No. 2017-04, "Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment" ASU No. 2017-04 was issued in January 2017 and applies to public and other entities that have goodwill reported in their financial statements. To simplify the subsequent measurement of goodwill, this ASU eliminates Step 2 from the goodwill impairment test. In computing the implied fair value of goodwill under Step 2, an entity had to perform procedures to determine the fair value at the impairment testing date of its assets and liabilities, including unrecognized assets and liabilities, following the procedure that would be required in determining the fair value of assets acquired and liabilities assumed in a business combination. Instead, under the amendments in this update, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. A public business entity that is an SEC filer should adopt the amendments in this update on a prospective basis for its annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Adoption of ASU No. 2017-04 is not expected to have a material impact on LCNB's results of operations or financial position. ASU No. 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities" ASU No. 2017-12 was issued in August 2017 and applies to any entity that elects to apply hedge accounting in accordance with current generally accepted accounting principles. The amendments in this update better align an entity’s risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. To meet that objective, the amendments expand and refine hedge accounting for both nonfinancial and financial risk components. The amendments are effective for public business entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early application is permitted. LCNB does not currently own any instruments within the scope of ASU No. 2017-12 and its adoption is not expected to have a material impact on its results of operations or financial position. ASU No. 2018-13, "Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement" ASU No. 2018-13 was issued in August 2018 and applies to all entities that are required to make disclosures about recurring or nonrecurring fair value measurements. The amendments in this update modify fair value disclosure requirements, including the deletion, modification, and addition of certain targeted disclosures. The amendments are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted. An entity is permitted to early adopt any removed or modified disclosures upon issuance of the update and delay adoption of the additional disclosures until the effective date. The amendments are to be applied on a retrospective basis to all periods presented upon adoption, except for certain amendments described in the update that are to be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. Adoption of ASU No. 2018-13 will not have a material impact on LCNB's results of operations or financial position. ASU No. 2018-14, "Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20): Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans" ASU No. 2018-14 was issued in August 2018. The amendments in this update modify disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans, including the deletion, modification, and addition of certain targeted disclosures. The amendments are effective for public business entities for fiscal years beginning after December 15, 2020. Early adoption is permitted. The amendments are to be applied on a retrospective basis to all periods presented upon adoption. Adoption of ASU No. 2018-14 will not have a material impact on LCNB's results of operations or financial position. ASU No. 2018-15, "Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract" ASU No. 2018-15 was issued in August 2018 and applies to entities that are a customer in a hosting arrangement, as defined, that is accounted for as a service contract. The amendments in this update require an entity (customer) in a hosting arrangement that is a service contract to follow the guidance in Subtopic 350-40 to determine which implementation costs to capitalize as an asset related to the service contract and which costs to expense. Capitalized implementation costs are to be expensed over the term of the hosting arrangement. The amendments in this update are effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period. The amendments can be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. Adoption of ASU No. 2018-15 is not expected to have a material impact on LCNB's results of operations or financial position.

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Policies)	9 Months Ended
Recent Accounting Pronouncements (Policies)	Sep. 30, 2018
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements From time to time the FASB issues an ASU to communicate changes to U.S. generally accepted accounting principles. The following information provides brief summaries of newly issued but not yet effective ASUs that could have an effect on LCNB’s financial position or results of operations: ASU No. 2016-02, "Leases (Topic 842)" ASU No. 2016-02 was issued in February 2016 and requires a lessee to recognize in the statement of financial position a liability to make lease payments ("the lease liability") and a right-of-use asset representing its right to use the underlying asset for the lease term, initially measured at the present value of the lease payments. When measuring assets and liabilities arising from a lease, the lessee should include payments to be made in optional periods only if the lessee is reasonably certain, as defined, to exercise an option to the lease or not to exercise an option to terminate the lease. Optional payments to purchase the underlying asset should be included if the lessee is reasonably certain it will exercise the purchase option. Most variable lease payments should be excluded except for those that depend on an index or a rate or are in substance fixed payments. A lessee shall classify a lease as a finance lease if it meets any of five listed criteria: 1. The lease transfers ownership of the underlying asset to the lessee by the end of the lease term. 2. The lease grants the lessee an option to purchase the underlying asset that the lessee is reasonably certain to exercise. 3. The lease term is for the major part of the remaining economic life of the underlying asset. 4. The present value of the sum of the lease payments and any residual value guaranteed by the lessee equals or exceeds substantially all of the fair value of the underlying asset. 5. The underlying asset is of such a specialized nature that it is expected to have no alternative use to the lessor at the end of the lease term. For finance leases, a lessee shall recognize in the statement of income interest on the lease liability separately from amortization of the right-of-use asset. Amortization of the right-of-use asset shall be on a straight-line basis, unless another basis is more representative of the pattern in which the lessee expects to consume the right-of-use asset’s future economic benefits. If the lease does not meet any of the five criteria, the lessee shall classify it as an operating lease and shall recognize a single lease cost on a straight-line basis over the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. The amendments in this update are to be applied using a modified retrospective approach, as defined, and are effective for public business entities for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2018. Early application is permitted. LCNB estimates that it will recognize discounted right-of-use assets and lease liabilities totaling approximately $5 million for current leases outstanding. This projection is based on various assumptions, including the level of interest rates and no significant increases in leasing activity, that may change between now and the effective date. ASU No. 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" ASU No. 2016-13 was issued in June 2016 and, once effective, will significantly change current guidance for recognizing impairment of financial instruments. Current guidance requires an "incurred loss" methodology for recognizing credit losses that delays recognition until it is probable a loss has been incurred. ASU No. 2016-13 replaces the incurred loss impairment methodology with a new methodology that reflects expected credit losses over the lives of the loans and requires consideration of a broader range of information to inform credit loss estimates. The ASU requires an organization to estimate all expected credit losses for financial assets measured at amortized cost, including loans and held-to-maturity debt securities, based on historical experience, current conditions, and reasonable and supportable forecasts. Additional disclosures are required. ASU No. 2016-13 also amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. Under the new guidance, entities will determine whether all or a portion of the unrealized loss on an available-for-sale debt security is a credit loss. Any credit loss will be recognized as an allowance for credit losses on available-for-sale debt securities rather than as a direct reduction of the amortized cost basis of the investment, as is currently required. As a result, entities will recognize improvements to estimated credit losses on available-for-sale debt securities immediately in earnings rather than as interest income over time, as currently required. ASU No. 2016-13 eliminates the current accounting model for purchased credit impaired loans and debt securities. Instead, purchased financial assets with credit deterioration will be recorded gross of estimated credit losses as of the date of acquisition and the estimated credit losses amounts will be added to the allowance for credit losses. Thereafter, entities will account for additional impairment of such purchased assets using the models listed above. ASU No. 2016-13 will take effect for SEC filers for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early application will be permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. While LCNB's Loan Committee expects that the implementation of ASU No. 2016-13 will increase the balance of the allowance for loan losses, it is continuing to evaluate the potential impact on LCNB's results of operations and financial position. The Loan Committee is currently analyzing its data collection efforts, pool segmentation, and reporting mechanisms to prepare for adoption of this ASU. The financial statement impact of this new standard cannot be reasonably estimated at this time. ASU No. 2017-04, "Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment" ASU No. 2017-04 was issued in January 2017 and applies to public and other entities that have goodwill reported in their financial statements. To simplify the subsequent measurement of goodwill, this ASU eliminates Step 2 from the goodwill impairment test. In computing the implied fair value of goodwill under Step 2, an entity had to perform procedures to determine the fair value at the impairment testing date of its assets and liabilities, including unrecognized assets and liabilities, following the procedure that would be required in determining the fair value of assets acquired and liabilities assumed in a business combination. Instead, under the amendments in this update, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. A public business entity that is an SEC filer should adopt the amendments in this update on a prospective basis for its annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Adoption of ASU No. 2017-04 is not expected to have a material impact on LCNB's results of operations or financial position.

Acquisitions (Tables)

Acquisitions (Tables)	9 Months Ended
Acquisitions (Tables)	Sep. 30, 2018	Sep. 30, 2017
Business Combinations [Abstract]
Fair Values of Assets Acquired, Liabilities Assumed, and Consideration Paid	The merger with CFB was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed, and consideration paid were recorded at their estimated fair values as of the merger date. The estimated fair values reported in LCNB's Form 10-Q for the quarterly period ended June 30, 2018 were preliminary, as the pricing study had not been finalized at that time. The following table summarizes the preliminary balances at June 30, 2018, revisions to the preliminary balances, and the balances at September 30, 2018 (in thousands): June 30, 2018 Fair Value Adjustments September 30, 2018 Consideration Paid: Common shares issued (3,253,060 shares issued at $19.55 per share) $ 63,598 $ — $ 63,598 Cash paid to cancel share based payment awards 783 — 783 64,381 — 64,381 Identifiable Assets Acquired: Cash and cash equivalents 13,679 — 13,679 Interest-bearing time deposits 10,350 — 10,350 Federal Home Loan Bank stock 1,207 — 1,207 Loans, net 282,748 (615 ) 282,133 Loans held for sale, net 1,819 — 1,819 Premises and equipment 102 — 102 Core deposit intangible 2,089 88 2,177 Other real estate owned 35 — 35 Deferred income taxes — 352 352 Other assets 2,022 (716 ) 1,306 Total identifiable assets acquired 314,051 (891 ) 313,160 Liabilities Assumed: Deposits 245,036 (606 ) 244,430 Short-term borrowings 10,000 — 10,000 Long-term debt 22,920 23 22,943 Deferred income taxes 200 (200 ) — Other liabilities 491 19 510 Total liabilities assumed 278,647 (764 ) 277,883 Total Identifiable Net Assets Acquired 35,404 (127 ) 35,277 Goodwill resulting from merger $ 28,977 $ 127 $ 29,104
Business Acquisition Financial Contribution By Acquired Company [Table Text Block]		The amount of CFB's revenue (net interest income plus non-interest income) and net income, excluding merger-related expenses, included in LCNB's consolidated condensed statement of income for the three and nine months ended September 30, 2018 were as follows (in thousands): Three Months Nine Months Total revenue $ 2,992 3,898 Net income 1,608 2,077
Business Acquisition, Pro Forma Information [Table Text Block]		The following table presents unaudited pro forma information as if the merger with CFB had occurred on January 1, 2017 (in thousands). This pro forma information gives effect to certain adjustments, including purchase accounting fair value adjustments, amortization of the core deposit intangible, and related income tax effects. It does not include merger and data conversion costs. The pro forma information does not necessarily reflect the results of operations that would have occurred had the merger with CFB occurred in 2017. In particular, expected operational cost savings are not reflected in the pro forma amounts. Three Months Ended Nine Months Ended 2018 2017 2018 2017 Total revenue $ 16,024 15,808 47,978 46,978 Net income 4,478 3,852 12,514 11,762 Basic earnings per common share 0.29 0.29 0.88 0.89 Diluted earnings per common share 0.29 0.29 0.88 0.89

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
Investment Securities (Tables)	Sep. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Amortized Cost and Fair Value of Available-for-Sale Investment Securities	The amortized cost and estimated fair value of equity and debt securities at September 30, 2018 and December 31, 2017 are summarized as follows (in thousands): Amortized Unrealized Unrealized Fair September 30, 2018 Debt Securities, Available-for-Sale: U.S. Treasury notes $ 2,279 $ — $ 95 $ 2,184 U.S. Agency notes 80,738 — 3,566 77,172 U.S. Agency mortgage-backed securities 59,734 8 2,950 56,792 Municipal securities: Non-taxable 93,979 45 2,340 91,684 Taxable 19,914 80 389 19,605 $ 256,644 $ 133 $ 9,340 $ 247,437 Debt Securities, Held-to-Maturity: Municipal securities: Non-taxable $ 27,979 $ 30 $ 827 $ 27,182 Taxable 3,700 — 225 3,475 $ 31,679 $ 30 $ 1,052 $ 30,657 December 31, 2017 Equity Securities with a Readily Determinable Fair Value: Mutual funds $ 1,586 2 46 1,542 Trust preferred securities 49 1 — 50 Equity securities $ 475 97 4 568 2,110 $ 100 $ 50 $ 2,160 Debt Securities, Available-for-Sale: U.S. Treasury notes $ 2,283 $ — $ 24 $ 2,259 U.S. Agency notes 84,837 57 1,633 83,261 U.S. Agency mortgage-backed securities 68,347 33 1,227 67,153 Municipal securities: Non-taxable 102,849 343 1,018 102,174 Taxable 20,313 175 122 20,366 $ 278,629 $ 608 $ 4,024 $ 275,213 Debt Securities, Held-to-Maturity: Municipal securities: Non-taxable $ 28,871 $ 101 $ 227 $ 28,745 Taxable 3,700 — 95 3,605 $ 32,571 $ 101 $ 322 $ 32,350
Securities in a Continuous Loss Position	Information concerning debt securities with gross unrealized losses at September 30, 2018 and December 31, 2017 , aggregated by length of time that individual securities have been in a continuous loss position, is as follows (dollars in thousands): Less than Twelve Months Twelve Months or Greater Fair Value Unrealized Losses Fair Value Unrealized Losses September 30, 2018 Available-for-Sale: U.S. Treasury notes $ 948 $ 37 $ 1,236 $ 58 U.S. Agency notes 9,680 203 67,492 3,363 U.S. Agency mortgage-backed securities 4,527 88 51,948 2,862 Municipal securities: Non-taxable 52,974 741 30,890 1,599 Taxable 8,039 165 8,962 224 $ 76,168 $ 1,234 $ 160,528 $ 8,106 Held-to-Maturity: Municipal securities: Non-taxable $ 14,331 634 6,237 193 Taxable 399 1 3,076 224 $ 14,730 $ 635 $ 9,313 $ 417 December 31, 2017 Available-for-Sale: U.S. Treasury notes $ 2,259 $ 24 $ — $ — U.S. Agency notes 33,651 344 44,560 1,289 U.S. Agency mortgage-backed securities 24,433 142 41,080 1,085 Municipal securities: Non-taxable 36,348 315 24,197 703 Taxable 11,068 114 1,032 8 $ 107,759 $ 939 $ 110,869 $ 3,085 Held-to-Maturity: Municipal securities: Non-taxable $ 9,824 $ 133 $ 3,542 $ 94 Taxable — — 3,205 95 $ 9,824 $ 133 $ 6,747 $ 189
Investments Classified by Contractual Maturity Date	Contractual maturities of debt securities at September 30, 2018 were as follows (in thousands). Actual maturities may differ from contractual maturities when issuers have the right to call or prepay obligations. Available-for-Sale Held-to-Maturity Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 15,203 $ 15,152 $ 3,240 $ 3,245 Due from one to five years 103,857 101,130 4,066 3,971 Due from five to ten years 75,648 72,306 8,649 8,373 Due after ten years 2,202 2,057 15,724 15,068 196,910 190,645 31,679 30,657 U.S. Agency mortgage-backed securities 59,734 56,792 — — $ 256,644 $ 247,437 $ 31,679 $ 30,657
Schedule of Debt Securities, Trading, and Equity Securities, FV-NI	The amortized cost and estimated fair value of equity securities with a readily determinable fair value at September 30, 2018 are summarized as follows (in thousands): Amortized Fair Mutual funds $ 1,633 $ 1,547 Trust preferred securities 49 50 Equity securities 481 603 Total equity securities with a readily determinable fair value $ 2,163 $ 2,200
Schedule of Equity Securities, Changes in Fair Value	Beginning January 1, 2018, equity securities with a readily determinable fair value are carried at fair value, with changes in fair value recognized in other operating income in the consolidated condensed statements of income. Equity securities without a readily determinable fair value are measured at cost minus impairment, if any, plus or minus any changes resulting from observable price changes in orderly transactions, as defined, for identical or similar investments of the same issuer. LCNB was not aware of any impairment or observable price change adjustments that needed to be made at September 30, 2018 on its investments in equity securities without a readily determinable fair value. The amortized cost and estimated fair value of equity securities with a readily determinable fair value at September 30, 2018 are summarized as follows (in thousands): Amortized Fair Mutual funds $ 1,633 $ 1,547 Trust preferred securities 49 50 Equity securities 481 603 Total equity securities with a readily determinable fair value $ 2,163 $ 2,200 Certain information concerning changes in fair value of equity securities with a readily determinable fair value for the nine months ended September 30, 2018 was as follows (in thousands): Net gains recognized $ 12 Less net realized gains on equity securities sold 25 Unrealized losses recognized and still held at period end $ (13 )

Loans (Tables)

Loans (Tables)	9 Months Ended
Loans (Tables)	Sep. 30, 2018
Receivables [Abstract]
Information About Loans Modified During Period That Were Determined To Be Troubled Debt Restructurings [Table Text Block]	Information concerning loans that were modified during the nine months ended September 30, 2018 and 2017 and that were determined to be troubled debt restructurings follows (in thousands): Modified During the Nine Months Ended September 30, 2018 2017 Impaired loans without a valuation allowance at the end of the period 199 0 Impaired loans with a valuation allowance at the end of the period 0 23
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	Loan modifications that were classified as TDRs during the three and nine months ended September 30, 2018 and 2017 were as follows: 2018 2017 Number of Loans Pre-Modification Recorded Balance Post-Modification Recorded Balance Number of Loans Pre-Modification Recorded Balance Post-Modification Recorded Balance Three Months Ended September 30, Commercial and industrial 0 $ — — 0 $ — — Commercial, secured by real estate 0 — — 0 — — Residential real estate 1 199 199 0 — — Consumer 0 — — 0 — — Total 1 $ 199 199 0 $ — — Nine Months Ended September 30, Commercial and industrial 0 $ — — 0 $ — — Commercial, secured by real estate 0 — — 0 — — Residential real estate 1 199 199 1 18 9 Consumer 0 — — 1 14 14 Total 1 $ 199 199 2 $ 32 23
Major Classifications of Loans	Major classifications of loans at September 30, 2018 and December 31, 2017 are as follows (in thousands): September 30, 2018 December 31, 2017 Commercial and industrial $ 78,002 $ 36,057 Commercial, secured by real estate 704,987 527,947 Residential real estate 347,920 251,582 Consumer 17,505 17,450 Agricultural 13,280 15,194 Other loans, including deposit overdrafts 498 539 Loans, gross 1,162,192 848,769 Deferred origination costs, net 133 291 Loans, net of deferred origination costs 1,162,325 849,060 Less allowance for loan losses 4,016 3,403 Loans, net $ 1,158,309 $ 845,657
Non-accrual, Past Due, and Accruing Restructured Loans	Non-accrual, past-due, and accruing restructured loans as of September 30, 2018 and December 31, 2017 are as follows (in thousands): September 30, 2018 December 31, 2017 Non-accrual loans: Commercial and industrial $ — $ — Commercial, secured by real estate 1,785 2,183 Residential real estate 627 604 Consumer 14 — Agricultural 177 178 Total non-accrual loans 2,603 2,965 Past-due 90 days or more and still accruing 1 — Total non-accrual and past-due 90 days or more and still accruing 2,604 2,965 Accruing restructured loans 10,307 10,469 Total $ 12,911 $ 13,434
Allowance for Loan Losses and Recorded Investments in Loans	A breakdown of the allowance for loan losses and the loan portfolio by loan segment at September 30, 2018 and December 31, 2017 are as follows (in thousands): Commercial Commercial, Secured by Residential Consumer Agricultural Other Total September 30, 2018 Allowance for loan losses: Individually evaluated for impairment $ 10 $ 3 $ 26 $ — $ — $ — $ 39 Collectively evaluated for impairment 394 2,755 689 81 54 4 3,977 Acquired credit impaired loans — — — — — — — Balance, end of period $ 404 $ 2,758 $ 715 $ 81 $ 54 $ 4 $ 4,016 Loans: Individually evaluated for impairment $ 276 $ 10,529 $ 1,151 $ 50 $ 177 $ — $ 12,183 Collectively evaluated for impairment 76,643 686,654 343,912 17,566 13,120 119 1,138,014 Acquired credit impaired loans 1,136 7,352 3,261 — — 379 12,128 Balance, end of period $ 78,055 $ 704,535 $ 348,324 $ 17,616 $ 13,297 $ 498 $ 1,162,325 December 31, 2017 Allowance for loan losses: Individually evaluated for impairment $ 8 $ 146 $ 29 $ 8 $ — $ — $ 191 Collectively evaluated for impairment 370 2,032 688 68 53 1 3,212 Acquired credit impaired loans — — — — — — — Balance, end of period $ 378 $ 2,178 $ 717 $ 76 $ 53 $ 1 $ 3,403 Loans: Individually evaluated for impairment $ 303 $ 11,289 $ 1,351 $ 47 $ 177 $ — $ 13,167 Collectively evaluated for impairment 34,792 512,259 248,674 17,516 15,033 137 828,411 Acquired credit impaired loans 1,008 4,048 2,024 — — 402 7,482 Balance, end of period $ 36,103 $ 527,596 $ 252,049 $ 17,563 $ 15,210 $ 539 $ 849,060 The allowance for loan losses for the three and nine months ended September 30, 2018 and 2017 are as follows (in thousands): Commercial & Industrial Commercial, Secured by Real Estate Residential Real Estate Consumer Agricultural Other Total Three Months Ended September 30, 2018 Balance, beginning of period $ 407 $ 2,383 $ 690 $ 70 $ 52 $ 1 $ 3,603 Provision charged to expenses (3 ) 488 25 95 2 52 659 Losses charged off — (116 ) — (88 ) — (81 ) (285 ) Recoveries — 3 — 4 — 32 39 Balance, end of period $ 404 $ 2,758 $ 715 $ 81 $ 54 $ 4 $ 4,016 Nine Months Ended September 30, 2018 Balance, beginning of year $ 378 $ 2,178 $ 717 $ 76 $ 53 $ 1 $ 3,403 Provision charged to expenses 26 546 211 102 1 76 962 Losses charged off — (145 ) (227 ) (109 ) — (142 ) (623 ) Recoveries — 179 14 12 — 69 274 Balance, end of period $ 404 $ 2,758 $ 715 $ 81 $ 54 $ 4 $ 4,016 Three Months Ended September 30, 2017 Balance, beginning of period $ 273 $ 2,136 $ 822 $ 86 $ 61 $ 4 $ 3,382 Provision charged to expenses 8 (9 ) (139 ) (6 ) 113 21 (12 ) Losses charged off — (118 ) — (30 ) — (37 ) (185 ) Recoveries 19 106 38 44 — 15 222 Balance, end of period $ 300 $ 2,115 $ 721 $ 94 $ 174 $ 3 $ 3,407 Nine Months Ended September 30, 2017 Balance, beginning of year $ 350 $ 2,179 $ 885 $ 96 $ 60 $ 5 3,575 Provision charged to expenses (84 ) 287 (137 ) (3 ) 114 48 225 Losses charged off — (462 ) (135 ) (84 ) — (98 ) (779 ) Recoveries 34 111 108 85 — 48 386 Balance, end of period $ 300 $ 2,115 $ 721 $ 94 $ 174 $ 3 $ 3,407
Analysis of the Company's Loan Portfolio by Credit Quality Indicators	A breakdown of the loan portfolio by credit quality indicators at September 30, 2018 and December 31, 2017 is as follows (in thousands): Pass OAEM Substandard Doubtful Total September 30, 2018 Commercial & industrial $ 74,748 $ 1,417 $ 1,890 $ — $ 78,055 Commercial, secured by real estate 683,230 1,549 19,756 — 704,535 Residential real estate 345,478 — 2,846 — 348,324 Consumer 17,567 — 49 — 17,616 Agricultural 13,120 — 177 — 13,297 Other 498 — — — 498 Total $ 1,134,641 $ 2,966 $ 24,718 $ — $ 1,162,325 December 31, 2017 Commercial & industrial $ 35,683 $ 176 $ 244 $ — $ 36,103 Commercial, secured by real estate 506,833 2,180 18,583 — 527,596 Residential real estate 250,039 — 2,010 — 252,049 Consumer 17,522 — 41 — 17,563 Agricultural 14,233 — 977 — 15,210 Other 539 — — — 539 Total $ 824,849 $ 2,356 $ 21,855 $ — $ 849,060
Loan Portfolio Aging Analysis	A loan portfolio aging analysis at September 30, 2018 and December 31, 2017 is as follows (in thousands): 30-59 Days Past Due 60-89 Days Past Due Greater Than 90 Days Past Due Total Past Due Current Total Loans Receivable Total Loans Greater Than 90 Days and Accruing September 30, 2018 Commercial & industrial $ 1 $ — $ — $ 1 $ 78,054 $ 78,055 $ — Commercial, secured by real estate 569 139 309 1,017 703,518 704,535 — Residential real estate 878 303 354 1,535 346,789 348,324 — Consumer 9 10 15 34 17,582 17,616 1 Agricultural — — 177 177 13,120 13,297 — Other 69 — — 69 429 498 — Total $ 1,526 $ 452 $ 855 $ 2,833 $ 1,159,492 $ 1,162,325 $ 1 December 31, 2017 Commercial & industrial $ — $ — $ — $ — $ 36,103 $ 36,103 $ — Commercial, secured by real estate 124 — 598 722 526,874 527,596 — Residential real estate 362 135 496 993 251,056 252,049 — Consumer 29 2 — 31 17,532 17,563 — Agricultural — — 177 177 15,033 15,210 — Other 82 — — 82 457 539 — Total $ 597 $ 137 $ 1,271 $ 2,005 $ 847,055 $ 849,060 $ —
Impaired Loans	Impaired loans, including acquired credit impaired loans, at September 30, 2018 and December 31, 2017 are as follows (in thousands): September 30, 2018 December 31, 2017 Recorded Investment Unpaid Principal Balance Related Allowance Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Commercial & industrial $ 1,141 $ 1,667 $ — $ 1,015 $ 1,100 $ — Commercial, secured by real estate 17,730 19,082 — 12,677 13,608 — Residential real estate 3,854 4,621 — 2,822 3,516 — Consumer 28 28 — 6 6 — Agricultural 177 177 — 177 177 — Other 379 515 — 402 554 — Total $ 23,309 $ 26,090 $ — $ 17,099 $ 18,961 $ — With an allowance recorded: Commercial & industrial $ 271 $ 277 $ 10 $ 296 $ 301 $ 8 Commercial, secured by real estate 151 151 3 2,660 2,660 146 Residential real estate 558 601 26 553 572 29 Consumer 22 22 — 41 41 8 Agricultural — — — — — — Other — — — — — — Total $ 1,002 $ 1,051 $ 39 $ 3,550 $ 3,574 $ 191 Total: Commercial & industrial $ 1,412 $ 1,944 $ 10 $ 1,311 $ 1,401 $ 8 Commercial, secured by real estate 17,881 19,233 3 15,337 16,268 146 Residential real estate 4,412 5,222 26 3,375 4,088 29 Consumer 50 50 — 47 47 8 Agricultural 177 177 — 177 177 — Other 379 515 — 402 554 — Total $ 24,311 $ 27,141 $ 39 $ 20,649 $ 22,535 $ 191 The following presents information related to the average recorded investment and interest income recognized on impaired loans, including acquired credit impaired loans, for the three and nine months ended September 30, 2018 and 2017 (in thousands): 2018 2017 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Three Months Ended September 30, With no related allowance recorded: Commercial & industrial $ 1,261 $ 35 $ 945 $ 10 Commercial, secured by real estate 17,364 269 13,671 184 Residential real estate 3,935 77 3,268 45 Consumer 68 1 16 — Agricultural 177 — 142 — Other 374 10 438 12 Total $ 23,179 $ 392 $ 18,480 $ 251 With an allowance recorded: Commercial & industrial $ 276 $ 4 $ 306 $ 4 Commercial, secured by real estate 152 3 2,970 11 Residential real estate 573 8 604 7 Consumer 23 — 43 1 Agricultural — — 178 — Other — — — — Total $ 1,024 $ 15 $ 4,101 $ 23 Total: Commercial & industrial $ 1,537 $ 39 $ 1,251 $ 14 Commercial, secured by real estate 17,516 272 16,641 195 Residential real estate 4,508 85 3,872 52 Consumer 91 1 59 1 Agricultural 177 — 320 — Other 374 10 438 12 Total $ 24,203 $ 407 $ 22,581 $ 274 Nine Months Ended September 30, With no related allowance recorded: Commercial & industrial $ 950 $ 56 $ 603 $ 46 Commercial, secured by real estate 16,143 657 14,099 685 Residential real estate 3,420 174 3,280 180 Consumer 37 2 24 2 Agricultural 177 — 57 — Other 390 31 450 43 Total $ 21,117 $ 920 $ 18,513 $ 956 With an allowance recorded: Commercial & industrial $ 283 $ 13 $ 314 $ 13 Commercial, secured by real estate 154 9 3,085 35 Residential real estate 577 23 634 23 Consumer 24 1 43 2 Agricultural — — 240 — Other — — — — Total $ 1,038 $ 46 $ 4,316 $ 73 Total: Commercial & industrial $ 1,233 $ 69 $ 917 $ 59 Commercial, secured by real estate 16,297 666 17,184 720 Residential real estate 3,997 197 3,914 203 Consumer 61 3 67 4 Agricultural 177 — 297 — Other 390 31 450 43 Total $ 22,155 966 $ 22,829 $ 1,029
Schedule of Troubled Debt Restructurings, Modification Type [Table Text Block]	Post-modification balances of newly restructured troubled debt by type of modification for the three and nine months ended September 30, 2018 and 2017 were as follows (in thousands): Term Modification Rate Modification Interest Only Principal Forgiveness Combination Total Modifications Three Months Ended September 30, 2018 Commercial & industrial $ — $ — $ — $ — $ — $ — Commercial, secured by real estate — — — — — — Residential real estate 199 — — — — 199 Consumer — — — — — — Total $ 199 $ — $ — $ — $ — $ 199 Nine Months Ended September 30, 2018 Commercial & industrial $ — $ — $ — $ — $ — $ — Commercial, secured by real estate — — — — — — Residential real estate 199 — — — — 199 Consumer — — — — — — Total $ 199 $ — $ — $ — $ — $ 199 Three Months Ended September 30, 2017 Commercial & industrial $ — $ — $ — $ — $ — $ — Commercial, secured by real estate — — — — — — Residential real estate — — — — — — Consumer — — — — — — Total $ — $ — $ — $ — $ — $ — Nine Months Ended September 30, 2017 Commercial & industrial $ — $ — $ — $ — $ — $ — Commercial, secured by real estate — — — — — — Residential real estate — — — 9 — 9 Consumer 14 — — — — 14 Total $ 14 $ — $ — $ 9 $ — $ 23

Acquired Credit Impaired Loans

Acquired Credit Impaired Loans (Tables)	9 Months Ended
Acquired Credit Impaired Loans (Tables)	Sep. 30, 2018
Receivables [Abstract]
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Acquired During Period, Without Evidence Of Deterioration Of Credit Quality [Table Text Block]	The following table provides certain information at the acquisition date on loans acquired from CFB, not including loans considered to be impaired (in thousands): Contractually required principal at acquisition 281,639 Less fair value adjustment 1,801 Fair value of acquired loans 279,838 Contractual cash flows not expected to be collected 1,905
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Table Text Block]	The following table provides details at the acquisition date on acquired impaired loans obtained through the merger with CFB that are accounted for in accordance with FASB ASC 310-30 (in thousands): Contractually required principal at acquisition 4,989 Less contractual cash flows not expected to be collected (nonaccretable difference) 906 Expected cash flows at acquisition 4,083 Less interest component of expected cash flows (accretable discount) 151 Fair value of acquired impaired loans 3,932
Schedule Of Carrying Values Of Certain Loans Acquired In A Transfer Not Accounted For As Debt Securities	The following table provides at September 30, 2018 and December 31, 2017 the major classifications of acquired credit impaired loans that are accounted for in accordance with FASB ASC 310-30 (in thousands): September 30, 2018 December 31, 2017 Acquired from First Capital Bancshares, Inc. Commercial & industrial $ 14 $ 20 Commercial, secured by real estate 825 848 Residential real estate 919 947 Other loans, including deposit overdrafts — — Total $ 1,758 $ 1,815 Acquired from Eaton National Bank & Trust Co. Commercial & industrial $ 677 $ 988 Commercial, secured by real estate 1,588 1,699 Residential real estate 808 892 Other loans, including deposit overdrafts 379 402 Total $ 3,452 $ 3,981 Acquired from BNB Bancorp, Inc. Commercial & industrial $ — $ — Commercial, secured by real estate 1,412 1,501 Residential real estate 161 185 Other loans, including deposit overdrafts — — Total $ 1,573 $ 1,686 Acquired from Columbus First Bancorp, Inc. Commercial & industrial $ 445 Commercial, secured by real estate 3,527 Residential real estate 1,373 Other loans, including deposit overdrafts — Total $ 5,345 Total Commercial & industrial $ 1,136 $ 1,008 Commercial, secured by real estate 7,352 4,048 Residential real estate 3,261 2,024 Other loans, including deposit overdrafts 379 402 Total $ 12,128 $ 7,482
Outstanding and related carrying amount for acquired impaired loans	The following table provides the outstanding balance and related carrying amount for acquired credit impaired loans at the dates indicated (in thousands): September 30, 2018 December 31, 2017 Outstanding balance $ 14,732 $ 9,065 Carrying amount 12,128 7,482
Accretable discount related to acquired impaired loans	Activity during the three and nine months ended September 30, 2018 and 2017 for the accretable discount related to acquired credit impaired loans is as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Accretable discount at beginning of period $ 633 $ 851 $ 669 $ 1,080 Accretable discount acquired during period 151 — 151 — Reclassification from nonaccretable discount to accretable discount — 2 — 160 Less disposals — — — (170 ) Less accretion (11 ) (40 ) (47 ) (257 ) Accretable discount at end of period $ 773 $ 813 $ 773 $ 813

Affordable Housing Tax Credit_2

Affordable Housing Tax Credit Limited Partnership (Tables)	9 Months Ended
Affordable Housing Tax Credit Limited Partnership (Tables)	Sep. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Activity in Affordable Housing Program Obligation	The following table presents the balances of LCNB's affordable housing tax credit investments and related unfunded commitments at September 30, 2018 and December 31, 2017 (in thousands): September 30, December 31, Affordable housing tax credit investment $ 5,000 $ 3,000 Less amortization 400 231 Net affordable housing tax credit investment $ 4,600 $ 2,769 Unfunded commitment $ 3,522 $ 2,257 The net affordable housing tax credit investment is included in other assets and the unfunded commitment is included in accrued interest and other liabilities in the consolidated condensed balance sheets. LCNB expects to fund the unfunded commitment over 10.0 years . The following table presents other information relating to LCNB's affordable housing tax credit investments for the nine months ended September 30, 2018 and 2017 (in thousands): 2018 2017 Tax credits and other tax benefits recognized $ 168 $ 119 Tax credit amortization expense included in provision for income taxes 169 126

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
Goodwill and Other Intangible Assets (Tables)	Sep. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	e following table shows the changes in the carrying amount of goodwill for the nine months ended September 30, 2018 and 2017 (in thousands): 2018 2017 Balance, January 1 $ 30,183 $ 30,183 Goodwill acquired 29,104 — Balance, September 30 $ 59,287 $ 30,183

Borrowings (Tables)

Borrowings (Tables)	9 Months Ended
Borrowings (Tables)	Sep. 30, 2018
Debt Disclosure [Abstract]
Short-term borrowings	orrowings at September 30, 2018 and December 31, 2017 are as follows (dollars in thousands): September 30, 2018 December 31, 2017 Amount Rate Amount Rate FHLB short-term advances $ — — % $ 47,000 1.43 % FHLB long-term advances 23,079 1.86 % 303 2.82 % $ 23,079 1.86 % $ 47,303 1.44 %

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
Income Taxes (Tables)	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Reconciliation between Statutory Income Tax and Effective Tax Rate	A reconciliation between the statutory income tax and LCNB's effective tax rate on income from continuing operations follows: For the Three Months Ended For the Nine Months Ended 2018 2017 2018 2017 Statutory tax rate 21.0 % 35.0 % 21.0 % 35.0 % Increase (decrease) resulting from: Tax exempt interest (2.6 )% (6.4 )% (3.6 )% (6.4 )% Tax exempt income on bank owned life insurance (0.8 )% (1.6 )% (1.0 )% (1.9 )% Captive insurance premium income (0.8 )% — % (0.9 )% — % Other, net — % (1.9 )% 0.3 % (0.9 )% Effective tax rate 16.8 % 25.1 % 15.8 % 25.8 %

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	9 Months Ended
Commitments and Contingent Liabilities (Tables)	Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Financial Instruments Whose Contract Amounts Represent Off-Balance-Sheet Credit Risk	Financial instruments whose contract amounts represent off-balance-sheet credit risk at September 30, 2018 and December 31, 2017 are as follows (in thousands): September 30, 2018 December 31, 2017 Commitments to extend credit: Commercial loans $ 33,345 $ 18,964 Other loans Fixed rate 3,132 2,747 Adjustable rate 1,355 1,150 Unused lines of credit: Fixed rate 39,408 20,984 Adjustable rate 165,247 90,147 Unused overdraft protection amounts on demand and NOW accounts 16,297 16,441 Standby letters of credit 1,080 294 Total commitments $ 259,864 $ 150,727

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	9 Months Ended
Accumulated Other Comprehensive Income (Tables)	Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Income	Changes in accumulated other comprehensive income (loss) for the nine months ended September 30, 2018 and the year ended December 31, 2017 are as follows (in thousands): Unrealized Gains and Losses on Available-for-Sale Securities Changes in Pension Plan Assets and Benefit Obligations Total Nine Months Ended September 30, 2018: Balance at beginning of period $ (2,200 ) $ (142 ) $ (2,342 ) Cumulative effect of changes in accounting principles (498 ) (27 ) (525 ) Balance at beginning of period, as adjusted (2,698 ) (169 ) (2,867 ) Before reclassifications (4,581 ) 9 (4,572 ) Reclassifications 6 — 6 Balance at end of period $ (7,273 ) $ (160 ) $ (7,433 ) Year Ended December 31, 2017: Balance at beginning of period $ (2,633 ) $ 16 $ (2,617 ) Before reclassifications 585 (158 ) 427 Reclassifications (152 ) — (152 ) Balance at end of period $ (2,200 ) $ (142 ) $ (2,342 ) Reclassifications out of accumulated other comprehensive income (loss) during the three and nine months ended September 30, 2018 and 2017 and the affected line items in the consolidated condensed statements of income are as follows (in thousands): Three Months Ended Nine Months Ended Affected Line Item in the Consolidated Condensed Statements of Income 2018 2017 2018 2017 Realized gain (loss) on sale of debt securities $ (7 ) $ 78 $ (8 ) $ 218 Net gain (loss) from sales of debt securities, available-for-sale Less provision for income taxes (2 ) 27 (2 ) 75 Provision for income taxes Reclassification adjustment, net of taxes $ (5 ) 51 (6 ) 143
Schedule of Reclassifications Out of Accumulated Other Comprehensive Income	Three Months Ended Nine Months Ended Affected Line Item in the Consolidated Condensed Statements of Income 2018 2017 2018 2017 Realized gain (loss) on sale of debt securities $ (7 ) $ 78 $ (8 ) $ 218 Net gain (loss) from sales of debt securities, available-for-sale Less provision for income taxes (2 ) 27 (2 ) 75 Provision for income taxes Reclassification adjustment, net of taxes $ (5 ) 51 (6 ) 143

Retirement Plans (Tables)

Retirement Plans (Tables)	9 Months Ended
Retirement Plans (Tables)	Sep. 30, 2018
Retirement Benefits [Abstract]
Summary of Funding and Administrative Cost of Qualified Noncontributory Defined Benefit Retirement Plan and 401(k) Plan Charged to Salaries and Employee Benefits	Funding and administrative costs of the qualified noncontributory defined benefit retirement plan and 401(k) plan charged to pension and other employee benefits in the consolidated condensed statements of income for the three and nine -month periods ended September 30, 2018 and 2017 are as follows (in thousands): For the Three Months For the Nine Months 2018 2017 2018 2017 Qualified noncontributory defined benefit retirement plan $ 279 267 $ 804 $ 789 401(k) plan 119 102 336 298
Components of Net Periodic Pension Cost of Nonqualified Defined Benefit Retirement Plan	The components of net periodic pension cost of the nonqualified defined benefit retirement plan for the three and nine months ended September 30, 2018 and 2017 are summarized as follows (in thousands): Three Months Ended Nine Months Ended 2018 2017 2018 2017 Service cost $ — — $ — $ — Interest cost 17 17 51 51 Amortization of unrecognized net loss 4 — 12 — Net periodic pension cost $ 21 17 $ 63 $ 51
Amount Recognized in Accumulated Other Comprehensive Income, Net of Deferred Federal Income Taxes for Nonqualified Defined Retirement Plan	Amounts recognized in accumulated other comprehensive income (loss), net of tax, at September 30, 2018 and December 31, 2017 for the nonqualified defined benefit retirement plan consists of (in thousands): September 30, 2018 December 31, 2017 Net actuarial (gain) loss $ 160 $ 142 Past service cost — — Total recognized, net of tax $ 160 $ 142

Stock Based Compensation (Table

Stock Based Compensation (Tables)	9 Months Ended
Stock Based Compensation (Tables)	Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Stock Options Outstanding	Stock options outstanding at September 30, 2018 were as follows: Outstanding Stock Options Exercisable Stock Options Exercise Price Range Number Weighted Average Exercise Price Weighted Average Remaining Contractual Life (Years) Number Weighted Average Exercise Price Weighted Average Remaining Contractual Life (Years) $9.00 - $10.99 4,356 $ 9.00 0.3 4,356 $ 9.00 0.3 $11.00 - $12.99 13,278 11.98 2.4 13,278 11.98 2.4 17,634 11.25 1.9 17,634 11.25 1.9
Summary of Stock Option Activity	he following table summarizes stock option activity for the periods indicated: Nine Months Ended September 30, 2018 2017 Options Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) (1) Options Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) (1) Outstanding, January 1, 20,265 $ 11.42 24,669 $ 12.17 Granted — — — — Exercised (2,631 ) 12.55 (3,398 ) 14.94 Expired — — (1,006 ) 17.88 Outstanding, September 30, 17,634 11.25 131 20,265 11.42 193 Exercisable, September 30, 17,634 11.25 131 20,265 11.42 193 (1) Aggregate Intrinsic Value is defined as the amount by which the current market value of the underlying stock exceeds the exercise price of the option.
Summary of Restricted Stock Awards Activity	Restricted stock awards granted under the 2015 Plan were as follows: 2018 2017 Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value Outstanding, January 1, 8,817 $ 16.44 8,624 $ 15.47 Granted 10,634 19.20 4,027 22.60 Vested (669 ) 22.60 — — Forfeited — — — — Outstanding, September 30, 18,782 $ 17.78 12,651 $ 17.74
Schedule of Information Related to Stock Options Exercised	The following table provides information related to stock options exercised during the periods indicated (in thousands): Nine Months Ended September 30, 2018 2017 Intrinsic value of options exercised $ 17 $ 25 Cash received from options exercised 33 51 Tax benefit realized from options exercised 2 5

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	9 Months Ended
Earnings Per Common Share (Tables)	Sep. 30, 2018
Earnings Per Share [Abstract]
Computations of Earnings per Common Share	Earnings per share for the three and nine months ended September 30, 2018 and 2017 were calculated as follows (dollars in thousands, except share and per share data): For the Three Months Ended For the nine Months Ended 2018 2017 2018 2017 Net income $ 4,201 $ 3,106 $ 9,652 $ 9,355 Less allocation of earnings and dividends to participating securities 5 2 12 6 Net income allocated to common shareholders $ 4,196 $ 3,104 $ 9,640 $ 9,349 Weighted average common shares outstanding, gross 13,300,463 10,014,840 11,495,650 10,008,845 Less average participating securities 15,260 6,033 15,260 6,033 Weighted average number of shares outstanding used in the calculation of basic earnings per common share 13,285,203 10,008,807 11,480,390 10,002,812 Add dilutive effect of: Stock options 5,462 6,397 5,661 7,130 Adjusted weighted average number of shares outstanding used in the calculation of diluted earnings per common share 13,290,665 10,015,204 11,486,051 10,009,942 Earnings per common share: Basic $ 0.32 $ 0.31 $ 0.84 $ 0.93 Diluted 0.32 0.31 0.84 0.93

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
Fair Value Measurements (Tables)	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Summary of Valuation of LCNB's Assets Recorded at Fair Value by Inputs Level	The following table summarizes the valuation of LCNB's assets recorded at fair value by input levels as of September 30, 2018 and December 31, 2017 (in thousands): Fair Value Measurements at the End of the Reporting Period Using Fair Value Measurements Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) September 30, 2018 Recurring fair value measurements: Equity securities with a readily determinable fair value: Trust preferred securities $ 50 $ 50 $ — $ — Equity securities 603 603 — — Mutual funds 36 36 — — Mutual funds measured at net asset value 1,511 1,511 — — Debt securities available-for-sale: U.S. Treasury notes 2,184 2,184 — — U.S. Agency notes 77,172 — 77,172 — U.S. Agency mortgage-backed securities 56,792 — 56,792 — Municipal securities: Non-taxable 91,684 — 91,684 — Taxable 19,605 — 19,605 — Total recurring fair value measurements $ 249,637 $ 4,384 $ 245,253 $ — Nonrecurring fair value measurements: Impaired loans $ 963 $ — $ — $ 963 Other real estate owned and repossessed assets 35 — — 35 Total nonrecurring fair value measurements $ 998 $ — $ — $ 998 December 31, 2017 Recurring fair value measurements: Equity securities with a readily determinable fair value: Trust preferred securities $ 50 $ 50 $ — $ — Equity securities 568 568 — — Mutual funds 23 23 — — Mutual funds measured at net asset value 1,519 1,519 — — Debt securities available-for-sale: U.S. Treasury notes 2,259 2,259 — — U.S. Agency notes 83,261 — 83,261 — U.S. Agency mortgage-backed securities 67,153 — 67,153 — Municipal securities: Non-taxable 102,174 — 102,174 — Taxable 20,366 — 20,366 — Total recurring fair value measurements $ 277,373 $ 4,419 $ 272,954 $ — Nonrecurring fair value measurements: Impaired loans $ 3,359 $ — $ — $ 3,359
Fair Value Measurements Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques	The following table presents quantitative information about unobservable inputs used in nonrecurring level 3 fair value measurements at September 30, 2018 and December 31, 2017 (dollars in thousands): Range Fair Value Valuation Technique Unobservable Inputs High Low Weighted Average September 30, 2018 Impaired loans $ 71 Estimated sales price Adjustments for comparable properties, discounts to reflect current market conditions Not applicable 892 Discounted cash flows Discount rate 8.25 % 4.50 % 6.94 % Other real estate owned 35 Estimated sales price Adjustments for comparable properties, discounts to reflect current market conditions Not applicable December 31, 2017 Impaired loans $ 1,753 Estimated sales price Adjustments for comparable properties, discounts to reflect current market conditions Not applicable 1,606 Discounted cash flows Discount rate 8.25 % 3.25 % 6.27 % Other real estate owned — Estimated sales price Adjustments for comparable properties, discounts to reflect current market conditions Not applicable
Carrying Amounts and Estimated Fair Values of Financial Instruments	Carrying amounts and estimated fair values of financial instruments as of September 30, 2018 and December 31, 2017 are as follows (in thousands): Fair Value Measurements at the End of Carrying Amount Fair Value Quoted Significant Other Observable Inputs Significant Unobservable Inputs September 30, 2018 FINANCIAL ASSETS: Cash and cash equivalents $ 19,812 $ 19,812 $ 19,812 $ — $ — Equity securities without a readily determinable fair value: Equity security 99 99 — — 99 Mutual fund 2,000 2,000 — — 2,000 Investment securities, held-to-maturity 31,679 30,657 — — 30,657 Federal Reserve Bank stock 4,653 4,653 4,653 — — Federal Home Loan Bank stock 4,845 4,845 4,845 — — Loans, net 1,158,309 1,104,951 — — 1,104,951 Accrued interest receivable 5,602 5,602 — 5,602 — FINANCIAL LIABILITIES: Deposits 1,371,023 1,371,030 1,071,476 299,554 — Long-term debt 23,079 24,234 — 24,234 — Accrued interest payable 582 582 — 582 — December 31, 2017 FINANCIAL ASSETS: Cash and cash equivalents $ 25,386 $ 25,386 $ 25,386 $ — $ — Equity securities without a readily determinable fair value: Equity security 99 99 — — 99 Mutual fund 1,000 1,000 — — 1,000 Investment securities, held-to-maturity 32,571 32,350 — — 32,350 Federal Reserve Bank stock 2,732 2,732 2,732 — — Federal Home Loan Bank stock 3,638 3,638 3,638 — — Loans, net 845,657 813,368 — — 813,368 Accrued interest receivable 3,511 3,511 — 3,511 — FINANCIAL LIABILITIES: Deposits 1,085,821 1,087,086 894,046 193,040 — Short-term borrowings 47,000 47,000 47,000 — — Long-term debt 303 307 — 307 — Accrued interest payable 329 329 — 329 —

Basis of Presentation Accountin

Basis of Presentation Accounting Changes (Details)	9 Months Ended
Basis of Presentation Accounting Changes (Details)	Sep. 30, 2018USD ($)
Accounting Standards Update 2016-01 [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 33,000
Accounting Standards Update 2018-02 [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 492,000

Acquisition (Details)

Acquisition (Details) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended	9 Months Ended
Acquisition (Details) $ / shares in Units, $ in Thousands	Sep. 30, 2018USD ($)	Jun. 30, 2018USD ($)	Sep. 30, 2018USD ($)shares	May 31, 2018USD ($)$ / shares	Dec. 31, 2017USD ($)	Sep. 30, 2017USD ($)	Dec. 31, 2016USD ($)
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares \| shares			3,253,060
Assets	$ 1,620,299		$ 1,620,299		$ 1,295,638
Interest-bearing demand deposits	3,676		3,676		4,227
Liabilities	1,406,784		1,406,784		1,145,367
Deposits	1,371,023		1,371,023		1,085,821
Goodwill	59,287		59,287		$ 30,183	$ 30,183	$ 30,183
Business Acquisition, Share Price \| $ / shares				$ 0.1955
Columbus First Bancorp, Inc. [Member]
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Less common stock issued	63,598	$ 63,598	63,598
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Equity Interests	0
Less cash paid for the common stock		783	783
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Payments To Acquire Business, Gross	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	13,679	13,679	13,679
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Cash and Equivalents	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Assets	10,350	10,350	10,350
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets	0
Number of branches				1
Equity interest exchange ratio				2
Business combination, consideration transferred		64,381	64,381
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Federal Home Loan Bank Stock	1,207	1,207	1,207
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Federal Home Loan Bank Stock	0
Business Combination, Acquired Receivable, Fair Value	282,133	282,748	282,133	$ 279,838
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Loans Receivable	(615)
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Loan Receivables Held For Sale	1,819	1,819	1,819
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Loan Receivables Held For Sale	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	102	102	102
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	2,177	2,089	2,177
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles	88
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Real Estate Owned	35	35	35
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Real Estate Owned	0
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	352	0	352
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Assets	352
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	1,306	2,022	1,306
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Noncurrent Assets	(716)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	313,160	314,051	313,160
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assumed Assets	(891)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Liabilities	244,430	245,036	244,430
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities	(606)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	22,943	22,920	22,943
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Current Liabilities, Long-Term Debt	23
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Short-term Borrowings	10,000	10,000	10,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Current Liabilities, Short-Term Borrowings	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	0	200	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Liabilities	(200)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	510	491	510
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Liabilities, Other	19
Liabilities assumed	277,883	278,647	277,883
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assumed Liabilities	(764)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	35,277	35,404	35,277
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Recognized Identifiable Assets Acquired And Liabilities Assumed, Net	(127)
Goodwill	29,104	$ 28,977	$ 29,104
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Goodwill	$ 127

Acquisition Pro-Forma Informati

Acquisition Pro-Forma Information (Details) - Columbus First Bancorp, Inc. [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Business Acquisition [Line Items]
Business Combination Revenue Contributed By Acquired Company	$ 2,992		$ 3,898
Business Combination Net Income Contributed By Acquired Company	1,608		2,077
Business Acquisition, Pro Forma Revenue	16,024	$ 15,808	47,978	$ 46,978
Business Acquisition, Pro Forma Net Income (Loss)	$ 4,478	$ 3,852	$ 12,514	$ 11,762
Business Acquisition, Pro Forma Earnings Per Share, Basic	$ 0.0029	$ 0.0029	$ 0.0088	$ 0.0089
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ 0.0029	$ 0.0029	$ 0.0088	$ 0.0089

Investment Securities, Amortize

Investment Securities, Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt Securities, Available-for-Sale:
Amortized Cost	$ 256,644	$ 278,629
Unrealized Gains	133	608
Unrealized Losses	9,340	4,024
Fair Value	247,437	275,213
Debt Securities, Held-to-Maturity:
Debt securities, held-to-maturity, at cost	31,679	32,571
Unrealized Gains	30	101
Unrealized Losses	1,052	322
Fair Value	30,657	32,350
Equity Securities, Amortized Cost Basis	2,163	2,110
Equity Securities, Accumulated Gross Unrealized Gain, before Tax		100
Equity Securities, Accumulated Gross Unrealized Loss, before Tax		50
Equity securities with a readily determinable fair value, at fair value	2,200	2,160
U.S. Treasury notes [Member]
Debt Securities, Available-for-Sale:
Amortized Cost	2,279	2,283
Unrealized Gains	0	0
Unrealized Losses	95	24
Fair Value	2,184	2,259
U.S. Agency notes [Member]
Debt Securities, Available-for-Sale:
Amortized Cost	80,738	84,837
Unrealized Gains	0	57
Unrealized Losses	3,566	1,633
Fair Value	77,172	83,261
U.S. Agency mortgage-backed securities [Member]
Debt Securities, Available-for-Sale:
Amortized Cost	59,734	68,347
Unrealized Gains	8	33
Unrealized Losses	2,950	1,227
Fair Value	56,792	67,153
Debt Securities, Held-to-Maturity:
Debt securities, held-to-maturity, at cost	0
Fair Value	0
Non-taxable Municipal securities [Member]
Debt Securities, Available-for-Sale:
Amortized Cost	93,979	102,849
Unrealized Gains	45	343
Unrealized Losses	2,340	1,018
Fair Value	91,684	102,174
Debt Securities, Held-to-Maturity:
Debt securities, held-to-maturity, at cost	27,979	28,871
Unrealized Gains	30	101
Unrealized Losses	827	227
Fair Value	27,182	28,745
Taxable Municipal securities [Member]
Debt Securities, Available-for-Sale:
Amortized Cost	19,914	20,313
Unrealized Gains	80	175
Unrealized Losses	389	122
Fair Value	19,605	20,366
Debt Securities, Held-to-Maturity:
Debt securities, held-to-maturity, at cost	3,700	3,700
Unrealized Gains	0	0
Unrealized Losses	225	95
Fair Value	3,475	3,605
Mutual funds [Member]
Debt Securities, Held-to-Maturity:
Equity Securities, Amortized Cost Basis	1,633	1,586
Equity Securities, Accumulated Gross Unrealized Gain, before Tax		2
Equity Securities, Accumulated Gross Unrealized Loss, before Tax		46
Equity securities with a readily determinable fair value, at fair value	1,547	1,542
Trust preferred securities [Member]
Debt Securities, Held-to-Maturity:
Equity Securities, Amortized Cost Basis	49	49
Equity Securities, Accumulated Gross Unrealized Gain, before Tax		1
Equity Securities, Accumulated Gross Unrealized Loss, before Tax		0
Equity securities with a readily determinable fair value, at fair value	50	50
Equity securities [Member]
Debt Securities, Held-to-Maturity:
Equity Securities, Amortized Cost Basis	481	475
Equity Securities, Accumulated Gross Unrealized Gain, before Tax		97
Equity Securities, Accumulated Gross Unrealized Loss, before Tax		4
Equity securities with a readily determinable fair value, at fair value	$ 603	$ 568

Investment Securities, Continuo

Investment Securities, Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Available-for-Sale:
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 160,528	$ 110,869
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	8,106	3,085
Held-to-Maturity:
Less than 12 Months, Fair Value	14,730	9,824
Less than 12 Months, Unrealized Losses	635	133
12 Months or More, Fair Value	9,313	6,747
12 Months or More, Unrealized Losses	417	189
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	76,168	107,759
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	1,234	939
U.S. Treasury notes [Member]
Available-for-Sale:
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,236	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	58	0
Held-to-Maturity:
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	948	2,259
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	37	24
U.S. Agency notes [Member]
Available-for-Sale:
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	67,492	44,560
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	3,363	1,289
Held-to-Maturity:
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	9,680	33,651
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	203	344
U.S. Agency mortgage-backed securities [Member]
Available-for-Sale:
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	51,948	41,080
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	2,862	1,085
Held-to-Maturity:
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	4,527	24,433
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	88	142
Non-taxable Municipal securities [Member]
Available-for-Sale:
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	30,890	24,197
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	1,599	703
Held-to-Maturity:
Less than 12 Months, Fair Value	14,331	9,824
Less than 12 Months, Unrealized Losses	634	133
12 Months or More, Fair Value	6,237	3,542
12 Months or More, Unrealized Losses	193	94
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	52,974	36,348
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	741	315
Taxable Municipal securities [Member]
Available-for-Sale:
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	8,962	1,032
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	224	8
Held-to-Maturity:
Less than 12 Months, Fair Value	399	0
Less than 12 Months, Unrealized Losses	1	0
12 Months or More, Fair Value	3,076	3,205
12 Months or More, Unrealized Losses	224	95
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	8,039	11,068
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 165	$ 114

Investment Securities, Maturiti

Investment Securities, Maturities (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Available-for-Sale, Amortized Cost
Due within one year	$ 15,203,000
Due from one to five years	103,857,000
Due from five to ten years	75,648,000
Due after ten years	2,202,000
Amortized Cost Basis	196,910,000
Amortized Cost	256,644,000	$ 278,629,000
Available-for-Sale, Fair Value
Due within one year	15,152,000
Due from one to five years	101,130,000
Due from five to ten years	72,306,000
Due after ten years	2,057,000
Total available-for-sale, maturities	190,645,000
Fair Value	247,437,000	275,213,000
Held-to-Maturity, Amortized Cost
Due within one year	3,240,000
Due from one to five years	4,066,000
Due from five to ten years	8,649,000
Due after ten years	15,724,000
Amortized Cost	31,679,000	32,571,000
Held-to-Maturity, Fair Value
Due within one year	3,245,000
Due from one to five years	3,971,000
Due from five to ten years	8,373,000
Due after ten years	15,068,000
Held-to-maturity, fair value	30,657,000	32,350,000
Available-for-sale securities pledged as collateral	130,951,000	108,751,000
U.S. Agency mortgage-backed securities [Member]
Available-for-Sale, Amortized Cost
Amortized Cost	59,734,000	68,347,000
Available-for-Sale, Fair Value
Fair Value	56,792,000	$ 67,153,000
Held-to-Maturity, Amortized Cost
Amortized Cost	0
Held-to-Maturity, Fair Value
Held-to-maturity, fair value	$ 0

Investment Securities, Equity S

Investment Securities, Equity Securities Changes in Fair Value Recognized in Net Income (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Debt and Equity Securities, FV-NI [Line Items]
Equity Securities, Amortized Cost Basis	$ 2,163	$ 2,110
Equity securities with a readily determinable fair value, at fair value	2,200	2,160
Net gains recognized	12
Less net realized gains on equity securities sold	25
Unrealized losses recognized and still held at period end	(13)
Mutual funds [Member]
Debt and Equity Securities, FV-NI [Line Items]
Equity Securities, Amortized Cost Basis	1,633	1,586
Equity securities with a readily determinable fair value, at fair value	1,547	1,542
Trust preferred securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Equity Securities, Amortized Cost Basis	49	49
Equity securities with a readily determinable fair value, at fair value	50	50
Equity securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Equity Securities, Amortized Cost Basis	481	475
Equity securities with a readily determinable fair value, at fair value	$ 603	$ 568

Investment Securities Schedule

Investment Securities Schedule of debt securities with a market value (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales of debt securities available-for-sale	$ 5,202	$ 14,164	$ 8,545	$ 26,407
Gross realized gains	14	78	21	218
Gross realized losses	$ 21	$ 0	$ 29	$ 0

Loans, Major Classifications of

Loans, Major Classifications of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	$ 1,162,192	$ 848,769
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	133	291
Total Loans Receivable	1,162,325	849,060
Less allowance for loan losses	4,016	3,403
Total	1,158,309	845,657
Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	78,002	36,057
Commercial, secured by real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	704,987	527,947
Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	347,920	251,582
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	17,505	17,450
Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	13,280	15,194
Other loans, including deposit overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	$ 498	$ 539

Loans, Additional Information (

Loans, Additional Information (Details) - USD ($)	9 Months Ended
Loans, Additional Information (Details) - USD ($)	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings that subsequently defaulted within 12 months of the restructuring date	$ 0	$ 1,236,000
Financing Receivable, Modifications, with No Related Allowance, Recorded Investment	0	0
Financing Receivable, Modifications, with Related Allowance, Recorded Investment	0	$ 23
Mortgage loans secured by residential real estate that were in the process of foreclosure	392,000
Federal Home Loan Mortgage Corporation and Other Investors [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balance of loans serviced for others	$ 115,647,000		$ 92,818,000
Commercial and industrial [Member] \| Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Maturity Period	1 year
Commercial and industrial [Member] \| Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Maturity Period	10 years
Commercial, secured by real estate [Member] \| Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Adjustable rate period	1 year
Amortization period	5 years
Balloon payments period	1 year
Loan to appraised value ratio	75.00%
Commercial, secured by real estate [Member] \| Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Adjustable rate period	10 years
Amortization period	25 years
Balloon payments period	10 years
Loan to appraised value ratio	85.00%
Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Home equity line of credit draw period	5 years
Residential real estate [Member] \| Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Adjustable rate period	1 year
Amortization period	5 years
Loan to appraised value ratio	80.00%
Residential real estate [Member] \| Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Adjustable rate period	10 years
Amortization period	30 years
Consumer [Member] \| Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortization period	72 months

Loans, Past Due And Accruing Re

Loans, Past Due And Accruing Restructured (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	$ 2,603	$ 2,965
Past-due 90 days or more and still accruing	1	0
Total non-accrual and past-due 90 days or more and still accruing	2,604	2,965
Accruing restructured loans	10,307	10,469
Total	12,911	13,434
Commercial and industrial [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	0	0
Commercial Secured By Real Estate [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	1,785	2,183
Agricultural [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	177	178
Residential Real Estate [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	627	604
Consumer [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	$ 14	$ 0

Loans, Allowance for Loan Losse

Loans, Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Allowance for loan losses [Roll Forward]
Balance, beginning of period	$ 3,603	$ 3,382	$ 3,403	$ 3,575
Provision charged to expenses	659	(12)	962	225
Losses charged off	(285)	(185)	(623)	(779)
Recoveries	39	222	274	386
Balance, end of period	4,016	3,407	4,016	3,407
Commercial and industrial [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	407	273	378	350
Provision charged to expenses	(3)	8	26	(84)
Losses charged off	0	0	0	0
Recoveries	0	19	0	34
Balance, end of period	404	300	404	300
Commercial Secured By Real Estate [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	2,383	2,136	2,178	2,179
Provision charged to expenses	488	(9)	546	287
Losses charged off	(116)	(118)	(145)	(462)
Recoveries	3	106	179	111
Balance, end of period	2,758	2,115	2,758	2,115
Residential Real Estate [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	690	822	717	885
Provision charged to expenses	25	(139)	211	(137)
Losses charged off	0	0	(227)	(135)
Recoveries	0	38	14	108
Balance, end of period	715	721	715	721
Consumer [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	70	86	76	96
Provision charged to expenses	95	(6)	102	(3)
Losses charged off	(88)	(30)	(109)	(84)
Recoveries	4	44	12	85
Balance, end of period	81	94	81	94
Agricultural [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	52	61	53	60
Provision charged to expenses	2	113	1	114
Losses charged off	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	54	174	54	174
Other [Member]
Allowance for loan losses [Roll Forward]
Balance, beginning of period	1	4	1	5
Provision charged to expenses	52	21	76	48
Losses charged off	(81)	(37)	(142)	(98)
Recoveries	32	15	69	48
Balance, end of period	$ 4	$ 3	$ 4	$ 3

Loans, Allowance for Loan Los_2

Loans, Allowance for Loan Losses and Loan Portfolio by Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Allowance for loan losses:
Individually evaluated for impairment	$ 39		$ 191
Collectively evaluated for impairment	3,977		3,212
Acquired credit impaired loans	0		0
Balance, end of period	4,016	$ 3,603	3,403	$ 3,407	$ 3,382	$ 3,575
Loans:
Individually evaluated for impairment	12,183		13,167
Collectively evaluated for impairment	1,138,014		828,411
Acquired credit impaired loans	12,128		7,482
Balance, end of period	1,162,325		849,060
Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	12,128		7,482
Commercial and industrial [Member]
Allowance for loan losses:
Individually evaluated for impairment	10		8
Collectively evaluated for impairment	394		370
Acquired credit impaired loans	0		0
Balance, end of period	404	407	378	300	273	350
Loans:
Individually evaluated for impairment	276		303
Collectively evaluated for impairment	76,643		34,792
Balance, end of period	78,055		36,103
Commercial and industrial [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	1,136		1,008
Commercial Secured By Real Estate [Member]
Allowance for loan losses:
Individually evaluated for impairment	3		146
Collectively evaluated for impairment	2,755		2,032
Acquired credit impaired loans	0		0
Balance, end of period	2,758	2,383	2,178	2,115	2,136	2,179
Loans:
Individually evaluated for impairment	10,529		11,289
Collectively evaluated for impairment	686,654		512,259
Balance, end of period	704,535		527,596
Commercial Secured By Real Estate [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	7,352		4,048
Residential Real Estate [Member]
Allowance for loan losses:
Individually evaluated for impairment	26		29
Collectively evaluated for impairment	689		688
Acquired credit impaired loans	0		0
Balance, end of period	715	690	717	721	822	885
Loans:
Individually evaluated for impairment	1,151		1,351
Collectively evaluated for impairment	343,912		248,674
Balance, end of period	348,324		252,049
Residential Real Estate [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	3,261		2,024
Consumer [Member]
Allowance for loan losses:
Individually evaluated for impairment	0		8
Collectively evaluated for impairment	81		68
Acquired credit impaired loans	0		0
Balance, end of period	81	70	76	94	86	96
Loans:
Individually evaluated for impairment	50		47
Collectively evaluated for impairment	17,566		17,516
Balance, end of period	17,616		17,563
Consumer [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	0		0
Agricultural [Member]
Allowance for loan losses:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	54		53
Acquired credit impaired loans	0		0
Balance, end of period	54	52	53	174	61	60
Loans:
Individually evaluated for impairment	177		177
Collectively evaluated for impairment	13,120		15,033
Balance, end of period	13,297		15,210
Agricultural [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	0		0
Other [Member]
Allowance for loan losses:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	4		1
Acquired credit impaired loans	0		0
Balance, end of period	4	$ 1	1	$ 3	$ 4	$ 5
Loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	119		137
Balance, end of period	498		539
Other [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans:
Acquired credit impaired loans	$ 379		$ 402

Loans, Loans Portfolio by Credi

Loans, Loans Portfolio by Credit Quality Indicators (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	$ 1,162,325	$ 849,060
Commercial and industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	78,055	36,103
Commercial, secured by real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	704,535	527,596
Residential real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	348,324	252,049
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	17,616	17,563
Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	13,297	15,210
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	498	539
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	1,134,641	824,849
Pass [Member] \| Commercial and industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	74,748	35,683
Pass [Member] \| Commercial, secured by real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	683,230	506,833
Pass [Member] \| Residential real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	345,478	250,039
Pass [Member] \| Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	17,567	17,522
Pass [Member] \| Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	13,120	14,233
Pass [Member] \| Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	498	539
OAEM [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	2,966	2,356
OAEM [Member] \| Commercial and industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	1,417	176
OAEM [Member] \| Commercial, secured by real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	1,549	2,180
OAEM [Member] \| Residential real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	0	0
OAEM [Member] \| Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	0	0
OAEM [Member] \| Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	0	0
OAEM [Member] \| Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	0	0
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	24,718	21,855
Substandard [Member] \| Commercial and industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	1,890	244
Substandard [Member] \| Commercial, secured by real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	19,756	18,583
Substandard [Member] \| Residential real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	2,846	2,010
Substandard [Member] \| Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	49	41
Substandard [Member] \| Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	177	977
Substandard [Member] \| Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	0	0
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	0	0
Doubtful [Member] \| Commercial and industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	0	0
Doubtful [Member] \| Commercial, secured by real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	0	0
Doubtful [Member] \| Residential real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	0	0
Doubtful [Member] \| Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	0	0
Doubtful [Member] \| Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	0	0
Doubtful [Member] \| Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of deferred origination costs (fees)	$ 0	$ 0

Loans, Loans Portfolio Aging An

Loans, Loans Portfolio Aging Analysis (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 2,833	$ 2,005
Current	1,159,492	847,055
Total Loans Receivable	1,162,325	849,060
Total Loans Greater Than 90 Days and Accruing	1	0
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,526	597
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	452	137
Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	855	1,271
Commercial and industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1	0
Current	78,054	36,103
Total Loans Receivable	78,055	36,103
Total Loans Greater Than 90 Days and Accruing	0	0
Commercial and industrial [Member] \| 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1	0
Commercial and industrial [Member] \| 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial and industrial [Member] \| Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial, secured by real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,017	722
Current	703,518	526,874
Total Loans Receivable	704,535	527,596
Total Loans Greater Than 90 Days and Accruing	0	0
Commercial, secured by real estate [Member] \| 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	569	124
Commercial, secured by real estate [Member] \| 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	139	0
Commercial, secured by real estate [Member] \| Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	309	598
Residential real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,535	993
Current	346,789	251,056
Total Loans Receivable	348,324	252,049
Total Loans Greater Than 90 Days and Accruing	0	0
Residential real estate [Member] \| 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	878	362
Residential real estate [Member] \| 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	303	135
Residential real estate [Member] \| Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	354	496
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	34	31
Current	17,582	17,532
Total Loans Receivable	17,616	17,563
Total Loans Greater Than 90 Days and Accruing	1	0
Consumer [Member] \| 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9	29
Consumer [Member] \| 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	10	2
Consumer [Member] \| Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	15	0
Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	177	177
Current	13,120	15,033
Total Loans Receivable	13,297	15,210
Total Loans Greater Than 90 Days and Accruing	0	0
Agricultural [Member] \| 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Agricultural [Member] \| 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Agricultural [Member] \| Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	177	177
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	69	82
Current	429	457
Total Loans Receivable	498	539
Total Loans Greater Than 90 Days and Accruing	0	0
Other [Member] \| 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	69	82
Other [Member] \| 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Other [Member] \| Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 0	$ 0

Loans, Impaired Loans (Details)

Loans, Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Loans, Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Recorded Investment
With no related allowance recorded	$ 23,309		$ 23,309		$ 17,099
With an allowance recorded	1,002		1,002		3,550
Total	24,311		24,311		20,649
Unpaid Principal Balance
With no related allowance recorded	26,090		26,090		18,961
With an allowance recorded	1,051		1,051		3,574
Total	27,141		27,141		22,535
Related Allowance
With an allowance recorded	39		39		191
Average Recorded Investment
With no related allowance recorded	23,179	$ 18,480	21,117	$ 18,513
With an allowance recorded	1,024	4,101	1,038	4,316
Total	24,203	22,581	22,155	22,829
Interest Income Recognized
With no related allowance recorded	392	251	920	956
With an allowance recorded	15	23	46	73
Total	407	274	966	1,029
Cash basis interest expense on impaired loans			85	3
Commercial and industrial [Member]
Recorded Investment
With no related allowance recorded	1,141		1,141		1,015
With an allowance recorded	271		271		296
Total	1,412		1,412		1,311
Unpaid Principal Balance
With no related allowance recorded	1,667		1,667		1,100
With an allowance recorded	277		277		301
Total	1,944		1,944		1,401
Related Allowance
With an allowance recorded	10		10		8
Average Recorded Investment
With no related allowance recorded	1,261	945	950	603
With an allowance recorded	276	306	283	314
Total	1,537	1,251	1,233	917
Interest Income Recognized
With no related allowance recorded	35	10	56	46
With an allowance recorded	4	4	13	13
Total	39	14	69	59
Commercial, secured by real estate [Member]
Recorded Investment
With no related allowance recorded	17,730		17,730		12,677
With an allowance recorded	151		151		2,660
Total	17,881		17,881		15,337
Unpaid Principal Balance
With no related allowance recorded	19,082		19,082		13,608
With an allowance recorded	151		151		2,660
Total	19,233		19,233		16,268
Related Allowance
With an allowance recorded	3		3		146
Average Recorded Investment
With no related allowance recorded	17,364	13,671	16,143	14,099
With an allowance recorded	152	2,970	154	3,085
Total	17,516	16,641	16,297	17,184
Interest Income Recognized
With no related allowance recorded	269	184	657	685
With an allowance recorded	3	11	9	35
Total	272	195	666	720
Residential real estate [Member]
Recorded Investment
With no related allowance recorded	3,854		3,854		2,822
With an allowance recorded	558		558		553
Total	4,412		4,412		3,375
Unpaid Principal Balance
With no related allowance recorded	4,621		4,621		3,516
With an allowance recorded	601		601		572
Total	5,222		5,222		4,088
Related Allowance
With an allowance recorded	26		26		29
Average Recorded Investment
With no related allowance recorded	3,935	3,268	3,420	3,280
With an allowance recorded	573	604	577	634
Total	4,508	3,872	3,997	3,914
Interest Income Recognized
With no related allowance recorded	77	45	174	180
With an allowance recorded	8	7	23	23
Total	85	52	197	203
Consumer [Member]
Recorded Investment
With no related allowance recorded	28		28		6
With an allowance recorded	22		22		41
Total	50		50		47
Unpaid Principal Balance
With no related allowance recorded	28		28		6
With an allowance recorded	22		22		41
Total	50		50		47
Related Allowance
With an allowance recorded	0		0		8
Average Recorded Investment
With no related allowance recorded	68	16	37	24
With an allowance recorded	23	43	24	43
Total	91	59	61	67
Interest Income Recognized
With no related allowance recorded	1	0	2	2
With an allowance recorded	0	1	1	2
Total	1	1	3	4
Agricultural [Member]
Recorded Investment
With no related allowance recorded	177		177		177
With an allowance recorded	0		0		0
Total	177		177		177
Unpaid Principal Balance
With no related allowance recorded	177		177		177
With an allowance recorded	0		0		0
Total	177		177		177
Related Allowance
With an allowance recorded	0		0		0
Average Recorded Investment
With no related allowance recorded	177	142	177	57
With an allowance recorded	0	178	0	240
Total	177	320	177	297
Interest Income Recognized
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Total	0	0	0	0
Other [Member]
Recorded Investment
With no related allowance recorded	379		379		402
With an allowance recorded	0		0		0
Total	379		379		402
Unpaid Principal Balance
With no related allowance recorded	515		515		554
With an allowance recorded	0		0		0
Total	515		515		554
Related Allowance
With an allowance recorded	0		0		$ 0
Average Recorded Investment
With no related allowance recorded	374	438	390	450
With an allowance recorded	0	0	0	0
Total	374	438	390	450
Interest Income Recognized
With no related allowance recorded	10	12	31	43
With an allowance recorded	0	0	0	0
Total	$ 10	$ 12	$ 31	$ 43

Loans, Troubled Debt Restructur

Loans, Troubled Debt Restructuring (Details)	3 Months Ended		9 Months Ended
Loans, Troubled Debt Restructuring (Details)	Sep. 30, 2018USD ($)Bank_Loan	Sep. 30, 2017USD ($)Bank_Loan	Sep. 30, 2018USD ($)Bank_Loan	Sep. 30, 2017USD ($)Bank_Loan
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, with No Related Allowance, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts				2
Financing Receivable, Modifications, Number of Contracts \| Bank_Loan	1	0	1	2
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 199,000	$ 0	$ 199,000	$ 32,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	199,000	0	199,000	23,000
Loan modifications classified as troubled debt restructurings [Abstract]
Troubled debt restructurings that subsequently defaulted within 12 months of the restructuring date			0	1,236,000
Financing Receivable, Modifications, with Related Allowance, Recorded Investment	$ 0	$ 23	$ 0	$ 23
Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts \| Bank_Loan	0	0	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial, secured by real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts \| Bank_Loan	0	0	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts \| Bank_Loan	1	0	1	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 199,000	$ 0	$ 199,000	$ 18,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 199,000	$ 0	$ 199,000	$ 9,000
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts \| Bank_Loan	0	0	0	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 14,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 14,000

Loans Loans, Troubled Debt Rest

Loans Loans, Troubled Debt Restructuring, Modification Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 199	$ 0	$ 199	$ 23
Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Commercial, secured by real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	199	0	199	9
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	14
Troubled Debt Restructurings, Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Troubled Debt Restructurings, Interest Only Modification [Member] \| Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Troubled Debt Restructurings, Interest Only Modification [Member] \| Commercial, secured by real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Troubled Debt Restructurings, Interest Only Modification [Member] \| Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Troubled Debt Restructurings, Interest Only Modification [Member] \| Consumer [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Principal Forgiveness [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	9
Principal Forgiveness [Member] \| Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Principal Forgiveness [Member] \| Commercial, secured by real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Principal Forgiveness [Member] \| Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	9
Principal Forgiveness [Member] \| Consumer [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Troubled Debt Restructurings, Combination Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Troubled Debt Restructurings, Combination Modification [Member] \| Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Troubled Debt Restructurings, Combination Modification [Member] \| Commercial, secured by real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Troubled Debt Restructurings, Combination Modification [Member] \| Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Troubled Debt Restructurings, Combination Modification [Member] \| Consumer [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Extended Maturity [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	199	0	199	14
Extended Maturity [Member] \| Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Extended Maturity [Member] \| Commercial, secured by real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Extended Maturity [Member] \| Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	199	0	199	0
Extended Maturity [Member] \| Consumer [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	14
Contractual Interest Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Contractual Interest Rate Reduction [Member] \| Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Contractual Interest Rate Reduction [Member] \| Commercial, secured by real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Contractual Interest Rate Reduction [Member] \| Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Contractual Interest Rate Reduction [Member] \| Consumer [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0

Acquired Credit Impaired Loans,

Acquired Credit Impaired Loans, Major Classifications of Acquired Credit Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	$ 1,162,325	$ 849,060
Total	1,158,309	845,657
Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	12,128	7,482
Financial Asset Acquired with Credit Deterioration [Member] \| Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	1,136	1,008
Financial Asset Acquired with Credit Deterioration [Member] \| Commercial, secured by real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	7,352	4,048
Financial Asset Acquired with Credit Deterioration [Member] \| Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	3,261	2,024
Financial Asset Acquired with Credit Deterioration [Member] \| Other loans, including deposit overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	379	402
First Capital Bancshares, Inc. [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,758	1,815
First Capital Bancshares, Inc. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	14	20
First Capital Bancshares, Inc. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Commercial, secured by real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	825	848
First Capital Bancshares, Inc. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	919	947
First Capital Bancshares, Inc. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Other loans, including deposit overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	0	0
Eaton National Bank & Trust Co. [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,452	3,981
Eaton National Bank & Trust Co. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	677	988
Eaton National Bank & Trust Co. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Commercial, secured by real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	1,588	1,699
Eaton National Bank & Trust Co. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	808	892
Eaton National Bank & Trust Co. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Other loans, including deposit overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	379	402
BNB Bancorp, Inc [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,573	1,686
BNB Bancorp, Inc [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	0	0
BNB Bancorp, Inc [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Commercial, secured by real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	1,412	1,501
BNB Bancorp, Inc [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	161	185
BNB Bancorp, Inc [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Other loans, including deposit overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	0	$ 0
Columbus First Bancorp, Inc. [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,345
Columbus First Bancorp, Inc. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	445
Columbus First Bancorp, Inc. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Commercial, secured by real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	3,527
Columbus First Bancorp, Inc. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	1,373
Columbus First Bancorp, Inc. [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Other loans, including deposit overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	$ 0

Acquired Credit Impaired Loan_2

Acquired Credit Impaired Loans, Outstanding Balance and Carrying Value for Acquired Credit Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018	May 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield	$ 773	$ 633		$ 669	$ 813	$ 851	$ 1,080
Loans gross	1,162,325			849,060
Loans, net	1,158,309			845,657
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Abstract]
Outstanding balance	14,732			9,065
Carrying amount	12,128			7,482
Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net	12,128			7,482
Other [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	379			402
Residential real estate [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	3,261			2,024
Commercial, secured by real estate [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	7,352			4,048
Commercial Portfolio Segment [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	1,136			$ 1,008
Columbus First Bancorp, Inc. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition			$ 4,989
Certain Loans Acquired in Transfer, Nonaccretable Difference			906
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition			4,083
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield			151
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			$ 3,932
Columbus First Bancorp, Inc. [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net	5,345
Columbus First Bancorp, Inc. [Member] \| Other [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	0
Columbus First Bancorp, Inc. [Member] \| Residential real estate [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	1,373
Columbus First Bancorp, Inc. [Member] \| Commercial, secured by real estate [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	3,527
Columbus First Bancorp, Inc. [Member] \| Commercial Portfolio Segment [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans gross	$ 445

Acquired Credit Impaired Loan_3

Acquired Credit Impaired Loans, Accretable Yield Related To Acquired Credit Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable discount at beginning of period	$ 633	$ 851	$ 669	$ 1,080
Accretable discount acquired during period	151	0	151	0
Reclassification from nonaccretable discount to accretable discount	0	2	0	160
Less disposals	0	0	0	(170)
Less accretion	(11)	(40)	(47)	(257)
Accretable discount at end of period	$ 773	$ 813	$ 773	$ 813

Acquired Credit Impaired Loan_4

Acquired Credit Impaired Loans Loans Acquired in Business Combination, Not Considered Impaired (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018	May 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield	$ 773	$ 633		$ 669	$ 813	$ 851	$ 1,080
Columbus First Bancorp, Inc. [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Business Combination, Acquired Receivables, Gross Contractual Amount			$ 281,639
Business Combination, Acquired Receivables, Fair Value Adjustment			1,801
Business Combination, Acquired Receivable, Fair Value	$ 282,133	$ 282,748	279,838
Business Combination, Acquired Receivables, Estimated Uncollectible			1,905
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition			4,989
Certain Loans Acquired in Transfer, Nonaccretable Difference			906
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition			4,083
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield			151
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			$ 3,932

Affordable Housing Tax Credit_3

Affordable Housing Tax Credit Limited Partnership (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
Affordable housing tax credit investment	$ 5,000		$ 3,000
Less amortization	400		231
Net affordable housing tax credit investment	4,600		2,769
Unfunded commitment	$ 3,522		$ 2,257
Funding period for unfunded commitment (in years)	10 years
Tax credits and other tax benefits recognized	$ 168	$ 119
Tax credit amortization expense included in provision for income taxes	$ 169	$ 126

Premises Held for Sale, Net Pre

Premises Held for Sale, Net Premises Held for Sale Net (Details)	9 Months Ended
	Sep. 30, 2018USD ($)
Premises Held for Sale, Net [Abstract]
Sale price of the building	$ 645,000
Building, long lived, fair value disclosure	$ 505,000

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Goodwill [Roll Forward]
Balance, January 1	$ 30,183	$ 30,183
Goodwill acquired	29,104	0
Balance, September 30	$ 59,287	$ 30,183

Borrowings (Details)

Borrowings (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Short-term Debt [Line Items]
Short-term borrowings, amount	$ 0	$ 47,000
Long-term debt	23,079	303
Pledged financial instruments, securities for federal home loan bank	301,000	217,000
FHLB short-term advance [Member]
Short-term Debt [Line Items]
Short-term borrowings, amount	$ 0	$ 47,000
Short-term borrowings, interest rate	0.00%	1.43%
Long-term debt	$ 23,079	$ 303
Federal Home Loan Bank, Advances, Weighted Average Interest Rate	1.86%	2.82%
Debt, Long-term and Short-term, Combined Amount	$ 23,079	$ 47,303
Debt, Weighted Average Interest Rate	1.86%	1.44%

Income Taxes (Details)

Income Taxes (Details)	3 Months Ended		9 Months Ended
Income Taxes (Details)	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Statutory tax rate	21.00%	35.00%	21.00%	35.00%
Increase (decrease) resulting from:
Tax exempt interest	(2.60%)	(6.40%)	(3.60%)	(6.40%)
Tax exempt income on bank owned life insurance	(0.80%)	(1.60%)	(1.00%)	(1.90%)
Effective Income Tax Rate Reconciliation, Captive Insurance Premium Income, Percent	(0.80%)	0.00%	(0.90%)	0.00%
Other, net	0.00%	(1.90%)	0.30%	(0.90%)
Effective tax rate	16.80%	25.10%	15.80%	25.80%

Commitments and Contingent Li_3

Commitments and Contingent Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks, liability	$ 259,864	$ 150,727
Commitments outstanding for capital expenditures	190
Commercial loans [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks, liability	33,345	18,964
Other loans [Member] \| Fixed rate [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks, liability	3,132	2,747
Other loans [Member] \| Adjustable rate [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks, liability	1,355	1,150
Unused lines of credit [Member] \| Fixed rate [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks, liability	39,408	20,984
Unused lines of credit [Member] \| Adjustable rate [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks, liability	165,247	90,147
Unused overdraft protection amounts on demand and NOW accounts [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks, liability	16,297	16,441
Standby letters of credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks, liability	$ 1,080	$ 294

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (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
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance beginning	$ 212,366	$ 147,927	$ 150,271	$ 142,944	$ 142,944
Before reclassifications			(4,572)		427
Reclassifications			6		(152)
Balance ending	213,515	149,713	213,515	149,713	150,271
Total [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance beginning		(975)	(2,867)	(2,617)	(2,617)
Balance ending	(7,433)	$ (786)	(7,433)	(786)	(2,867)
Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance beginning			(2,698)	(2,633)	(2,633)
Before reclassifications			(4,581)		585
Reclassifications			6		(152)
Balance ending	(7,273)		(7,273)		(2,698)
Changes in Pension Plan Assets and Benefit Obligations [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance beginning			(169)	$ 16	16
Before reclassifications			9		(158)
Reclassifications			0		0
Balance ending	(160)		(160)		(169)
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance beginning			150,271
Balance ending					150,271
Calculated under Revenue Guidance in Effect before Topic 606 [Member] \| Total [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance beginning	(6,383)		(2,342)
Balance ending	$ (7,433)		(7,433)		(2,342)
Calculated under Revenue Guidance in Effect before Topic 606 [Member] \| Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance beginning			(2,200)
Balance ending					(2,200)
Calculated under Revenue Guidance in Effect before Topic 606 [Member] \| Changes in Pension Plan Assets and Benefit Obligations [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance beginning			(142)
Balance ending					$ (142)
Accounting Standards Update 2014-09 [Member] \| Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Cumulative effect of changes in accounting principles			(525)
Accounting Standards Update 2014-09 [Member] \| Difference between Revenue Guidance in Effect before and after Topic 606 [Member] \| Total [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Cumulative effect of changes in accounting principles			(525)
Accounting Standards Update 2014-09 [Member] \| Difference between Revenue Guidance in Effect before and after Topic 606 [Member] \| Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Cumulative effect of changes in accounting principles			(498)
Accounting Standards Update 2014-09 [Member] \| Difference between Revenue Guidance in Effect before and after Topic 606 [Member] \| Changes in Pension Plan Assets and Benefit Obligations [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Cumulative effect of changes in accounting principles			$ (27)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income, Reclassification of AOCI (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
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Less provision for income taxes	$ 847	$ 1,040	$ 1,816	$ 3,255
Reclassification adjustment, net of taxes			(6)		$ 152
Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification adjustment, net of taxes			(6)		$ 152
Unrealized Gains and Losses on Available-for-Sale Securities [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gain (loss) on sale of debt securities	(7)	78	(8)	218
Less provision for income taxes	(2)	27	(2)	75
Reclassification adjustment, net of taxes	$ (5)	$ 51	$ (6)	$ 143

Retirement Plans (Details)

Retirement Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Retirement Plans (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Retirement Benefits [Abstract]
Automatic Annual Contribution Employees Hired Before January 1, 2009 Benefit Reduction Under Certain Amendments Minimum, percent			5.00%
Automatic Annual Contribution Employees Hired Before January 1, 2009 Due Benefit Reduction Under Certain Amendments Maximum, percent			7.00%
Employer's matching contribution to 401(k) of employees hired on or after January 1, 2009, percent			50.00%
Maximum annual contribution per employee, percent			3.00%
Funding and administrative costs of noncontributory defined benefit retirement plan and 401(k) plan [Abstract]
401(k) plan	$ 119	$ 102	$ 336	$ 298
Qualified noncontributory defined benefit retirement plan [Member]
Funding and administrative costs of noncontributory defined benefit retirement plan and 401(k) plan [Abstract]
Qualified noncontributory defined benefit retirement plan	279	267	804	789
Components of net periodic pension cost [Abstract]
Service cost	0	0	0	0
Interest cost	17	17	51	51
Amortization of unrecognized net loss	4	0	12	0
Net periodic pension cost	21	$ 17	63	$ 51
Recognized in accumulated other comprehensive income [Abstract]
Net actuarial (gain) loss	160		160		$ 142
Past service cost	0		0		0
Total recognized, net of tax	$ 160		$ 160		$ 142

Stock Based Compensation, Addit

Stock Based Compensation, Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period options granted to date vest ratably			5 years
Period options granted expires after date of grant			10 years
Compensation expense relating to restricted stock	$ 18,000	$ 6,000	$ 89,000	$ 69,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	131,000	193,000	131,000	193,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	131,000	193,000	131,000	193,000
Allocated Share-based Compensation Expense				1,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense				0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	18,000	6,000	89,000	69,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	4,000	$ 2,000	19,000	$ 24,000
Restricted stock compensation costs not yet recognized	$ 213,000		$ 213,000
Compensation costs not yet recognized, period for recognition			4 years
Ownership Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)	200,000		200,000
2015 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)	450,000		450,000

Stock Based Compensation, Stock

Stock Based Compensation, Stock Options Outstanding By Exercise Price Range (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding stock options, number (in shares)	17,634
Outstanding stock option, weighted average exercise price (in dollars per share)	$ 11.25
Outstanding stock option, weighted average remaining contractual life (years)	1 year 10 months 18 days
Exercisable stock options, number (in shares)	17,634
Exercisable stock option, weighted average exercise price (in dollars per share)	$ 11.25
Exercisable stock options, weighted average remaining contractual life (years)	1 year 10 months 18 days
Exercise Price Range, 9.00 to 10.99 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, lower range limit (usd per share)	$ 9
Exercise price range, upper range limit (usd per share)	$ 10.99
Outstanding stock options, number (in shares)	4,356
Outstanding stock option, weighted average exercise price (in dollars per share)	$ 9
Outstanding stock option, weighted average remaining contractual life (years)	3 months 27 days
Exercisable stock options, number (in shares)	4,356
Exercisable stock option, weighted average exercise price (in dollars per share)	$ 9
Exercisable stock options, weighted average remaining contractual life (years)	3 months 27 days
Exercise Price Range 11.00 to 12.99 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price range, lower range limit (usd per share)	$ 11
Exercise price range, upper range limit (usd per share)	$ 12.99
Outstanding stock options, number (in shares)	13,278
Outstanding stock option, weighted average exercise price (in dollars per share)	$ 11.98
Outstanding stock option, weighted average remaining contractual life (years)	2 years 4 months 23 days
Exercisable stock options, number (in shares)	13,278
Exercisable stock option, weighted average exercise price (in dollars per share)	$ 11.98
Exercisable stock options, weighted average remaining contractual life (years)	2 years 4 months 23 days
Stock Options [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	$ 131	$ 193

Stock Based Compensation, Sto_2

Stock Based Compensation, Stock Option Activity (Details) - Stock Options [Member] - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 131	$ 193
Options outstanding [Roll Forward]
Outstanding at beginning of period (in shares)	20,265	24,669
Granted (in shares)	0	0
Exercised (in shares)	(2,631)	(3,398)
Expired (in shares)	0	(1,006)
Outstanding at end of period (in shares)	17,634	20,265
Exercisable at end of period (in shares)	17,634	20,265
Weighted average exercise price [Roll forward]
Outstanding at beginning of period (in dollars per share)	$ 11.42	$ 12.17
Granted (in dollars per share)	0	0
Exercised (in dollars per share)	12.55	14.94
Expired (in dollars per share)	0	17.88
Outstanding at end of period (in dollars per share)	11.25	11.42
Exercisable at end of period (in dollars per share)	$ 11.25	$ 11.42
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	$ 131	$ 193

Stock Based Compensation , Info

Stock Based Compensation , Information Related to Stock Options Exercised (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Intrinsic value of options exercised	$ 17	$ 25
Cash received from options exercised	33	51
Tax benefit realized from options exercised	$ 2	$ 5

Stock Based Compensation , Rest

Stock Based Compensation , Restricted Stock Activity (Details) - Restricted Stock [Member] - $ / shares	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Shares
Outstanding at beginning of period (in shares)	8,817	8,624
Granted (in shares)	10,634	4,027
Vested (in shares)	669	0
Forfeited (in shares)	0	0
Outstanding at end of period (in shares)	18,782	12,651
Weighted Average Grant Date Fair Value
Outstanding at beginning of period (usd per share)	$ 16.44	$ 15.47
Granted (usd per share)	19.20	22.60
Vested (usd per share)	22.60	0
Forfeited (usd per share)	0	0
Outstanding at end of period (usd per share)	$ 17.78	$ 17.74

Stock Based Compensation Restri

Stock Based Compensation Restricted Stock Awards Expense Informations (Details) - Restricted Stock [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 18	$ 6	$ 89	$ 69
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	$ 4	$ 2	$ 19	$ 24

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Net income	$ 4,201	$ 3,106	$ 9,652	$ 9,355
Less allocation of earnings and dividends to participating securities	5	2	12	6
Net income allocated to common shareholders	$ 4,196	$ 3,104	$ 9,640	$ 9,349
Weighted average common shares outstanding, gross (in shares)	13,300,463	10,014,840	11,495,650	10,008,845
Less average participating securities (in shares)	15,260	6,033	15,260	6,033
Weighted average number of shares outstanding used in the calculation of basic earnings per common share (in shares)	13,285,203	10,008,807	11,480,390	10,002,812
Add dilutive effect of:
Stock options (in shares)	5,462	6,397	5,661	7,130
Adjusted weighted average number of shares outstanding used in the calculation of diluted earnings per common share (in shares)	13,290,665	10,015,204	11,486,051	10,009,942
Earnings per common share:
Basic (usd per share)	$ 0.32	$ 0.31	$ 0.84	$ 0.93
Diluted (usd per share)	$ 0.32	$ 0.31	$ 0.84	$ 0.93

Earnings Per Common Share, Addi

Earnings Per Common Share, Additional Information (Details) - shares	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Options to purchase common stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options excluded from computation of earnings per share (in shares)	0	0

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	$ 2,200	$ 2,160
Debt securities, available-for-sale, at fair value	247,437	275,213
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0	0
Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0	0
Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	99	99
Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	249,637	277,373
Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	4,384	4,419
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	245,253	272,954
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Nonrecurring [Member]
Recurring fair value measurement [Abstract]
Fair Value	998
Nonrecurring fair value measurements:
Impaired loans	963	3,359
Other real estate owned and repossessed assets	35
Nonrecurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Fair Value	0
Nonrecurring fair value measurements:
Impaired loans	0	0
Other real estate owned and repossessed assets	0
Nonrecurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Fair Value	0
Nonrecurring fair value measurements:
Impaired loans	0	0
Other real estate owned and repossessed assets	0
Nonrecurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Fair Value	998
Nonrecurring fair value measurements:
Impaired loans	963	3,359
Other real estate owned and repossessed assets	35
U.S. Treasury notes [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	2,184	2,259
U.S. Treasury notes [Member] \| Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	2,184	2,259
U.S. Treasury notes [Member] \| Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	2,184	2,259
U.S. Treasury notes [Member] \| Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
U.S. Treasury notes [Member] \| Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
U.S. Agency notes [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	77,172	83,261
U.S. Agency notes [Member] \| Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	77,172	83,261
U.S. Agency notes [Member] \| Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
U.S. Agency notes [Member] \| Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	77,172	83,261
U.S. Agency notes [Member] \| Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
U.S. Agency mortgage-backed securities [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	56,792	67,153
U.S. Agency mortgage-backed securities [Member] \| Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	56,792	67,153
U.S. Agency mortgage-backed securities [Member] \| Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
U.S. Agency mortgage-backed securities [Member] \| Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	56,792	67,153
U.S. Agency mortgage-backed securities [Member] \| Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Non-taxable Municipal securities [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	91,684	102,174
Non-taxable Municipal securities [Member] \| Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	91,684	102,174
Non-taxable Municipal securities [Member] \| Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Non-taxable Municipal securities [Member] \| Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	91,684	102,174
Non-taxable Municipal securities [Member] \| Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Taxable Municipal securities [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	19,605	20,366
Taxable Municipal securities [Member] \| Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	19,605	20,366
Taxable Municipal securities [Member] \| Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Taxable Municipal securities [Member] \| Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	19,605	20,366
Taxable Municipal securities [Member] \| Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Mutual funds [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	1,547	1,542
Mutual funds [Member] \| Recurring [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	36
Equity securities with a readily determinable fair value:		23
Mutual funds [Member] \| Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	36
Equity securities with a readily determinable fair value:		23
Mutual funds [Member] \| Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Mutual funds [Member] \| Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Mutual funds measured at net asset value [Member] \| Recurring [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	1,511
Equity securities with a readily determinable fair value:		1,519
Mutual Funds Measured At Net Asset Value [Member] \| Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	1,511
Equity securities with a readily determinable fair value:		1,519
Mutual Funds Measured At Net Asset Value [Member] \| Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Mutual Funds Measured At Net Asset Value [Member] \| Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Trust preferred securities [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	50	50
Trust preferred securities [Member] \| Recurring [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	50
Equity securities with a readily determinable fair value:		50
Trust preferred securities [Member] \| Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	50
Equity securities with a readily determinable fair value:		50
Trust preferred securities [Member] \| Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Trust preferred securities [Member] \| Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Equity securities [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	603	568
Equity securities [Member] \| Recurring [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	603
Equity securities with a readily determinable fair value:		568
Equity securities [Member] \| Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	603
Equity securities with a readily determinable fair value:		568
Equity securities [Member] \| Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Equity securities [Member] \| Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	$ 0
Equity securities with a readily determinable fair value:		$ 0

Fair Value Measurements, Quanti

Fair Value Measurements, Quantitative Information About Unobservable Inputs Used In Recurring And Nonrecurring Level 3 Inputs (Details) - Nonrecurring [Member] $ in Thousands	Sep. 30, 2018USD ($)	Dec. 31, 2017USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 998
Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	998
Impaired Loans, Fair Value Calculated Using Estimated Sales Price [Member] \| Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	71	$ 1,753
Other Real Estate Owned [Member] \| Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	35	0
Impaired Loans, Fair Value Calculated Using Disounted Cash Flows [Member] \| Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 892	$ 1,606
Measurement Input, Discount Rate [Member] \| Impaired loans [Member] \| High [Member] \| Level 3 [Member] \| Discounted Cash Flows [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate	0.0825	0.0825
Measurement Input, Discount Rate [Member] \| Impaired loans [Member] \| Low [Member] \| Level 3 [Member] \| Discounted Cash Flows [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate	0.0450	0.0325
Measurement Input, Discount Rate [Member] \| Impaired loans [Member] \| Weighted Average [Member] \| Level 3 [Member] \| Discounted Cash Flows [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate	0.0694	0.0627

Fair Value Measurements, By Bal

Fair Value Measurements, By Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
FINANCIAL ASSETS:
Equity securities with a readily determinable fair value, at fair value	$ 2,200	$ 2,160
Investment securities, held-to-maturity	30,657	32,350
Carrying Amount [Member]
FINANCIAL ASSETS:
Cash and cash equivalents	19,812	25,386
Equity securities with a readily determinable fair value, at fair value	99	99
Mutual Funds Without A Readily Determinable Fair Value	2,000	1,000
Investment securities, held-to-maturity	31,679	32,571
Federal Reserve Bank stock	4,653	2,732
Federal Home Loan Bank stock	4,845	3,638
Loans, net	1,158,309	845,657
Accrued interest receivable	5,602	3,511
FINANCIAL LIABILITIES:
Deposits	1,371,023	1,085,821
Short-term borrowings		47,000
Long-term debt	23,079	303
Accrued interest payable	582	329
Fair Value [Member]
FINANCIAL ASSETS:
Cash and cash equivalents	19,812	25,386
Equity securities with a readily determinable fair value, at fair value	99	99
Mutual Funds Without A Readily Determinable Fair Value	2,000	1,000
Investment securities, held-to-maturity	30,657	32,350
Federal Reserve Bank stock	4,653	2,732
Federal Home Loan Bank stock	4,845	3,638
Loans, net	1,104,951	813,368
Accrued interest receivable	5,602	3,511
FINANCIAL LIABILITIES:
Deposits	1,371,030	1,087,086
Short-term borrowings		47,000
Long-term debt	24,234	307
Accrued interest payable	582	329
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
FINANCIAL ASSETS:
Cash and cash equivalents	19,812	25,386
Equity securities with a readily determinable fair value, at fair value	0	0
Mutual Funds Without A Readily Determinable Fair Value	0	0
Investment securities, held-to-maturity	0	0
Federal Reserve Bank stock	4,653	2,732
Federal Home Loan Bank stock	4,845	3,638
Loans, net	0	0
Accrued interest receivable	0	0
FINANCIAL LIABILITIES:
Deposits	1,071,476	894,046
Short-term borrowings		47,000
Long-term debt	0	0
Accrued interest payable	0	0
Significant Other Observable Inputs (Level 2) [Member]
FINANCIAL ASSETS:
Cash and cash equivalents	0	0
Equity securities with a readily determinable fair value, at fair value	0	0
Mutual Funds Without A Readily Determinable Fair Value	0	0
Investment securities, held-to-maturity	0	0
Federal Reserve Bank stock	0	0
Federal Home Loan Bank stock	0	0
Loans, net	0	0
Accrued interest receivable	5,602	3,511
FINANCIAL LIABILITIES:
Deposits	299,554	193,040
Short-term borrowings		0
Long-term debt	24,234	307
Accrued interest payable	582	329
Significant Unobservable Inputs (Level 3) [Member]
FINANCIAL ASSETS:
Cash and cash equivalents	0	0
Equity securities with a readily determinable fair value, at fair value	99	99
Mutual Funds Without A Readily Determinable Fair Value	2,000	1,000
Investment securities, held-to-maturity	30,657	32,350
Federal Reserve Bank stock	0	0
Federal Home Loan Bank stock	0	0
Loans, net	1,104,951	813,368
Accrued interest receivable	0	0
FINANCIAL LIABILITIES:
Deposits	0	0
Short-term borrowings		0
Long-term debt	0	0
Accrued interest payable	$ 0	$ 0

Recent Accounting Pronounceme_3

Recent Accounting Pronouncements (Details) $ in Millions	Dec. 31, 2018USD ($)
Accounting Standards Update 2016-02 \| Forecast
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Finance lease, right-of-use asset	$ 5