Farmers & Merchants Bancorp (FMCB) 10-K 13 Mar 20 2019 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2019	Feb. 29, 2020	Jun. 30, 2019
Cover [Abstract]
Entity Registrant Name	FARMERS & MERCHANTS BANCORP
Entity Central Index Key	0001085913
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Public Float			$ 625,909,000
Entity Common Stock, Shares Outstanding		793,556
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Address, State or Province	CA

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Cash and Cash Equivalents:
Cash and Due from Banks	$ 71,564	$ 61,058
Interest Bearing Deposits with Banks	223,194	84,506
Total Cash and Cash Equivalents	294,758	145,564
Investment Securities:
Available-for-Sale	507,386	495,396
Held-to-Maturity	60,229	53,566
Total Investment Securities	567,615	548,962
Loans & Leases:	2,673,027	2,571,241
Less: Allowance for Credit Losses	55,012	55,266
Loans & Leases, Net	2,618,015	2,515,975
Premises and Equipment, Net	45,271	32,623
Bank Owned Life Insurance	67,148	65,117
Interest Receivable and Other Assets	129,023	126,002
Total Assets	3,721,830	3,434,243
Deposits:
Demand	1,067,187	974,756
Interest-Bearing Transaction	697,952	694,384
Savings and Money Market	994,958	903,665
Time	517,922	490,027
Total Deposits	3,278,019	3,062,832
Subordinated Debentures	10,310	10,310
Interest Payable and Other Liabilities	64,205	49,886
Total Liabilities	3,352,534	3,123,028
Commitments & Contingencies (See Note 18)
Shareholders' Equity
Preferred Stock: No Par Value, 1,000,000 Shares Authorized, None Issued or Outstanding	0	0
Common Stock: Par Value $0.01, 7,500,000 Shares Authorized, 793,033 and 783,721 Shares Issued and Outstanding at December 31, 2019 and 2018, respectively.	8	8
Additional Paid-In Capital	79,947	72,974
Retained Earnings	286,036	241,221
Accumulated Other Comprehensive Income (Loss)	3,305	(2,988)
Total Shareholders' Equity	369,296	311,215
Total Liabilities and Shareholders' Equity	$ 3,721,830	$ 3,434,243

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Shareholders' Equity
Preferred Stock, par value (in dollars per share)	$ 0	$ 0
Preferred Stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred Stock, shares issued (in shares)	0	0
Preferred Stock, shares outstanding (in shares)	0	0
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized (in shares)	7,500,000	7,500,000
Common Stock, shares issued (in shares)	793,033	783,721
Common Stock, shares outstanding (in shares)	793,033	783,721

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest Income
Interest and Fees on Loans & Leases	$ 137,237	$ 119,837	$ 102,682
Interest on Deposits with Banks	4,909	2,755	2,060
Interest on Investment Securities:
Taxable	9,911	9,257	8,123
Exempt from Federal Tax	1,651	1,604	1,747
Total Interest Income	153,708	133,453	114,612
Interest Expense
Deposits	12,640	7,425	5,865
Borrowed Funds	0	1	0
Subordinated Debentures	554	524	424
Total Interest Expense	13,194	7,950	6,289
Net Interest Income	140,514	125,503	108,323
Provision for Credit Losses	200	5,533	2,850
Net Interest Income After Provision for Loan Losses	140,314	119,970	105,473
Non-Interest Income
Service Charges on Deposit Accounts	3,673	3,479	3,453
Net Gain (Loss) on Investment Securities	1	(1,260)	131
Increase in Cash Surrender Value of Bank Owned Life Insurance	2,031	1,900	1,822
Debit Card and ATM Fees	5,120	4,365	3,873
Net Gain on Deferred Compensation Investments	2,625	1,088	2,563
Other	3,791	5,647	4,920
Total Non-Interest Income	17,241	15,219	16,762
Non-Interest Expense
Salaries and Employee Benefits	55,250	50,054	45,746
Net Gain on Deferred Compensation Investments	2,625	1,088	2,563
Occupancy	4,295	3,905	3,543
Equipment	4,921	4,303	3,994
Marketing	1,254	1,232	1,027
Legal	2,347	968	424
FDIC Insurance	624	912	932
Gain on Sale of ORE	0	0	(414)
Acquisition Expenses	0	2,933	0
Other	10,926	10,064	9,939
Total Non-Interest Expense	82,242	75,459	67,754
Income Before Income Taxes	75,313	59,730	54,481
Provision for Income Taxes	19,277	14,203	26,111
Net Income	$ 56,036	$ 45,527	$ 28,370
Basic and Diluted Earnings Per Common Share (in dollars per share)	$ 71.18	$ 56.82	$ 35.03

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Consolidated Statements of Comprehensive Income [Abstract]
Net Income	$ 56,036	$ 45,527	$ 28,370
Other Comprehensive Loss
Net Unrealized Gain (Loss) on Available-for-Sale Securities	8,936	(4,343)	(1,011)
Deferred Tax Benefit Related to Unrealized (Gain) Losses	(2,642)	1,284	281
Reclassification Adjustment for Realized (Gain) Loss on Available-for-Sale Securities Included in Net Income	(1)	1,260	(131)
Tax (Benefit) Expense Related to Reclassification Adjustment	0	(372)	55
Change in Net Unrealized Gain (Loss) on Available-for-Sale Securities, Net of Tax	6,293	(2,171)	(806)
Total Other Comprehensive Income (Loss)	6,293	(2,171)	(806)
Comprehensive Income	$ 62,329	$ 43,356	$ 27,564

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Total
Balance at Dec. 31, 2016	$ 8	$ 90,671	$ 189,313	$ (11)	$ 279,981
Balance (in shares) at Dec. 31, 2016	807,329
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income			28,370		28,370
Cash Dividends Declared on Common Stock			(10,982)		(10,982)
Issuance of Common Stock		2,953			2,953
Issuance of Common Stock (in shares)	4,975
Tax Adjustment of Available-for-Sale Securities Reclassed from AOCI			144	(144)	0
Change in Net Unrealized (Loss) Gain on Securities Available-for-Sale				(662)	(662)
Balance at Dec. 31, 2017	$ 8	93,624	206,845	(817)	299,660
Balance (in shares) at Dec. 31, 2017	812,304
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income			45,527		45,527
Cash Dividends Declared on Common Stock			(11,151)		(11,151)
Repurchase of Common Stock		(31,152)			(31,152)
Repurchase of Common Stock (in shares)	(44,503)
Issuance of Common Stock		10,502			10,502
Issuance of Common Stock (in shares)	15,920
Change in Net Unrealized (Loss) Gain on Securities Available-for-Sale				(2,171)	(2,171)
Balance at Dec. 31, 2018	$ 8	72,974	241,221	(2,988)	$ 311,215
Balance (in shares) at Dec. 31, 2018	783,721				783,721
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income			56,036		$ 56,036
Cash Dividends Declared on Common Stock			(11,221)		(11,221)
Issuance of Common Stock		6,973			6,973
Issuance of Common Stock (in shares)	9,312
Change in Net Unrealized (Loss) Gain on Securities Available-for-Sale				6,293	6,293
Balance at Dec. 31, 2019	$ 8	$ 79,947	$ 286,036	$ 3,305	$ 369,296
Balance (in shares) at Dec. 31, 2019	793,033				793,033

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash Dividends Declared per Share of Common Stock (in dollars per share)	$ 14.20	$ 13.90	$ 13.55

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Activities
Net Income	$ 56,036	$ 45,527	$ 28,370
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Credit Losses	200	5,533	2,850
Depreciation and Amortization	2,756	2,421	2,186
(Benefit) Provision for Deferred Income Taxes	(3,254)	5,462	12,605
Net Amortization of Investment Security Premium & Discounts	510	861	1,430
Amortization of Core Deposit Intangible	639	228	110
Accretion of Discount on Acquired Loans	(47)	(153)	(202)
Net (Gain) Loss on Investment Securities	(1)	1,260	(131)
Net Loss (Gain) on Sale of Property & Equipment	87	(273)	(1,189)
Net Gain on Sale of ORE	0	0	(414)
Earnings from Equity Investment	0	(66)	0
Dividends from Equity Investment	0	63	0
Gain on Remeasurement of Previously Held Equity Investment	0	(997)	0
Net Change in Operating Assets & Liabilities:
Net Decrease (Increase) in Interest Receivable and Other Assets	18,949	(2,098)	(275)
Net Increase (Decrease) in Interest Payable and Other Liabilities	4,983	6	(5,396)
Net Cash Provided by Operating Activities	80,858	57,774	39,944
Investing Activities
Purchase of Investment Securities Available-for-Sale	(652,280)	(465,414)	(325,573)
Proceeds from Sold, Matured, or Called Securities Available-for-Sale	644,244	550,727	289,857
Purchase of Investment Securities Held-to-Maturity	(16,376)	(9,813)	(1,205)
Proceeds from Matured, or Called Securities Held-to-Maturity	10,871	10,647	4,794
Net Loans & Leases Paid, Originated or Acquired	(102,413)	(276,066)	(38,178)
Principal Collected on Loans & Leases Previously Charged Off	220	158	259
Cash Paid for Acquisition, Net	0	(5,987)	0
Additions to Premises and Equipment	(15,537)	(4,577)	(4,254)
Purchase of Other Investment	(4,400)	(5,750)	(14,380)
Proceeds from Sale of Property & Equipment	41	986	3,304
Proceeds from Sale of ORE	0	0	3,186
Net Cash Used in Investing Activities	(135,630)	(205,089)	(82,190)
Financing Activities
Net Increase in Deposits	215,187	148,033	141,517
Stock Repurchases	0	(31,152)	0
Cash Dividends	(11,221)	(11,151)	(10,982)
Net Cash Provided by Financing Activities	203,966	105,730	130,535
Net Change in Cash and Cash Equivalents	149,194	(41,585)	88,289
Cash and Cash Equivalents at Beginning of Year	145,564	187,149	98,860
Cash and Cash Equivalents at End of Year	294,758	145,564	187,149
Supplementary Data
Cash Payments Made for Income Taxes	7,342	7,971	13,942
Issuance of Common Stock to the Bank's Non-Qualified Retirement Plans	6,973	10,502	2,953
Interest Paid	11,755	7,731	6,005
Supplementary Noncash Disclosure
Lease Liabilities Arising from Obtaining Right-of-Use Assets	5,645	0	0
Acquisitions:
Fair Value of Assets Acquired	0	234,456	0
Fair Value of Liabilities Acquired	$ 0	$ 192,809	$ 0

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Significant Accounting Policies [Abstract]
Significant Accounting Policies	1. Significant Accounting Policies Farmers & Merchants Bancorp (the “Company”) was organized March 10, 1999. Primary operations are related to traditional banking activities through its subsidiary Farmers & Merchants Bank of Central California (the “Bank”) which was established in 1916. The Bank’s wholly owned subsidiaries include Farmers & Merchants Investment Corporation and Farmers/Merchants Corp. Farmers & Merchants Investment Corporation has been dormant since 1991. Farmers/Merchants Corp. acts as trustee on deeds of trust originated by the Bank. The Company’s other wholly owned subsidiaries include F & M Bancorp, Inc. and FMCB Statutory Trust I. F & M Bancorp, Inc. was created in March 2002 to protect the name F & M Bank. During 2002, the Company completed a fictitious name filing in California to begin using the streamlined name “F & M Bank” as part of a larger effort to enhance the Company’s image and build brand name recognition. In December 2003, the Company formed a wholly owned subsidiary, FMCB Statutory Trust I, for the sole purpose of issuing Trust Preferred Securities and related subordinated debentures, in accordance with generally accepted accounting principles in the United States (“U.S. GAAP”). FMCB Statutory Trust I is a non-consolidated subsidiary. On October 10, 2018, Farmers & Merchants Bancorp completed the acquisition of the Bank of Rio Vista, headquartered in Rio Vista, California, a locally owned and operated community bank established in 1904. As of the acquisition date, Bank of Rio Vista had approximately $217.5 million in assets and three branch locations in the communities of Rio Vista, Walnut Grove, and Lodi. Since the Company had a 39.65% interest in Bank of Rio Vista prior to the acquisition of the remaining interest, the transaction was accounted for as a business combination achieved in stages or a step acquisition. The Company, through an independent valuation, remeasured its previously held equity interest in Bank of Rio Vista at fair value, which resulted in a gain for the excess of the acquisition-date fair value over its carrying value of $997,000 which is included in other non-interest income in the consolidated statements of income. At the effective time of the acquisition, Bank of Rio Vista was merged into Farmers & Merchants Bank of Central California. The accounting and reporting policies of the Company conform to U.S. GAAP and prevailing practice within the banking industry. The following is a summary of the significant accounting and reporting policies used in preparing the consolidated financial statements. Basis of Presentation The accompanying consolidated financial statements and notes thereto have been prepared in accordance with accounting principles generally accepted in the United States of America for financial information. The accompanying consolidated financial statements include the accounts of the Company and the Company’s wholly owned subsidiaries, F & M Bancorp, Inc. and the Bank, along with the Bank’s wholly owned subsidiaries, Farmers & Merchants Investment Corporation and Farmers/Merchants Corp. Significant inter-company transactions have been eliminated in consolidation. The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of 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 these estimates. Certain amounts in the prior years’ financial statements and related footnote disclosures have been reclassified to conform to the current-year presentation. These reclassifications had no effect on previously reported net income or total shareholders’ equity. New Accounting Changes The FASB issued guidance in February 2016, with amendments in 2018 and 2019, which changed the accounting for leases. The guidance requires lessees to recognize right-of-use (ROU) assets and lease liabilities for most leases where we are the lessee in the Consolidated Balance Sheets. The guidance also made some changes to lessor accounting, including the elimination of the use of third-party residual value guarantee insurance in the lease classification test, and overall aligns with the new revenue recognition guidance. The guidance also requires qualitative and quantitative disclosures to assess the amount, timing and uncertainty of cash flows arising from leases. Leases (Topic 842) The Company elected the option not to separate lease and non-lease components and instead to account for them as a single lease component and the hindsight practical expedient, which allows entities to use hindsight when determining lease term and impairment of right-of-use assets. The Company has several lease agreements, such as branch locations, which are considered operating leases, and therefore, were not previously recognized on the Company’s consolidated statements of condition. The new guidance requires these lease agreements to be recognized as a right-of-use asset and corresponding lease liability. Our operating leases relate primarily to office space and bank branches. As a result of implementing ASU 2016-02, we recognized an operating lease right-of-use (“ROU”) asset of $4.73 million and an operating lease liability of $4.73 million on January 1, 2019, with no impact on our consolidated statement of income or consolidated statement of cash flows compared to the prior lease accounting model. The ROU asset and operating lease liability are recorded in other assets and other liabilities, respectively, in the consolidated balance sheets. See Note 19 – “Leases” for additional information. Out of Period Adjustment During the quarter ended September 30, 2018, while preparing 2017 tax returns, the Company identified certain items related to IRS Code Section 162(m) that were not appropriately reflected in the 2014 through 2017 Provision for Income Taxes. To reflect this change, the cumulative impact of $990,000 was recognized by reducing the Company’s Provision for Income Taxes in the third quarter of 2018. After evaluating the quantitative and qualitative aspects of the adjustment, the Company concluded that its 2017 financial statements were not materially misstated and, therefore, no restatement was required. Revenue from Contracts with Customers The Company records revenue from contracts with customers in accordance with Accounting Standards Codification Topic 606, “Revenue from Contracts with Customers” (“Topic 606”). Under Topic 606, the Company must identify the contract with a customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract, and recognize revenue when (or as) the Company satisfies a performance obligation. Significant revenue has not been recognized in the current reporting period that results from performance obligations satisfied in previous periods. The Company elected to use the modified retrospective transition method which requires application of ASU 2014-09 to uncompleted contracts at the date of adoption however, periods prior to the date of adoption will not be retrospectively revised, as the impact of the ASU on uncompleted contracts at the date of adoption was not material. The Company’s primary sources of revenue are derived from interest and dividends earned on loans, investment securities, and other financial instruments that are not within the scope of Topic 606. The Company has evaluated the nature of its contracts with customers and determined that further disaggregation of revenue from contracts with customers into more granular categories beyond what is presented in the Consolidated Statements of Income was not necessary. The Company generally fully satisfies its performance obligations on its contracts with customers as services are rendered and the transaction prices are typically fixed; charged either on a periodic basis or based on activity. Because performance obligations are satisfied as services are rendered and the transaction prices are fixed, there is limited judgment involved in applying Topic 606 that significantly affects the determination of the amount and timing of revenue from contracts with customers. Cash and Cash Equivalents For purposes of the Consolidated Statements of Cash Flows, the Company has defined cash and cash equivalents as those amounts included in the balance sheet captions Cash and Due from Banks, Interest Bearing Deposits with Banks and Federal Funds Sold, which have original maturity dates of 3 months or less. For these instruments, the carrying amount is a reasonable estimate of fair value. Investment Securities Investment securities are classified at the time of purchase as held-to-maturity (“HTM”) if it is management’s intent and the Company has the ability to hold the securities until maturity. These securities are carried at cost, adjusted for amortization of premium and accretion of discount using a level yield of interest over the estimated remaining period until maturity. Losses, reflecting a decline in value judged by the Company to be other than temporary, are recognized in the period in which they occur. Securities are classified as available-for-sale (“AFS”) if it is management’s intent, at the time of purchase, to hold the securities for an indefinite period of time and/or to use the securities as part of the Company’s asset/liability management strategy. These securities are reported at fair value with aggregate unrealized gains or losses excluded from income and included as a separate component of shareholders’ equity, net of related income taxes. Fair values are based on quoted market prices or broker/dealer price quotations on a specific identification basis. Gains or losses on the sale of these securities are computed using the specific identification method. Trading securities, if any, are acquired for short-term appreciation and are recorded in a trading portfolio and are carried at fair value, with unrealized gains and losses recorded in non-interest income. Management evaluates securities for other-than-temporary impairment (“OTTI”) on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. For securities in an unrealized loss position, management considers the extent and duration of the unrealized loss, and the financial condition and near-term prospects of the issuer. Management also assesses whether it intends to sell, or it is more likely than not that it will be required to sell, a security in an unrealized loss position before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the entire difference between amortized cost and fair value is recognized as impairment through earnings. For debt securities that do not meet the aforementioned criteria, the amount of impairment is split into two components as follows: (1) OTTI related to credit loss, which must be recognized in the income statement; and (2) OTTI related to other factors, which is recognized in other comprehensive income. The credit loss is defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis. For equity securities, the entire amount of a market adjustment is recognized through earnings. Loans & Leases Loans & leases are reported at the principal amount outstanding net of unearned discounts and deferred loan & lease fees and costs. Interest income on loans & leases is accrued daily on the outstanding balances using the simple interest method. Loan & lease origination fees are deferred and recognized over the contractual life of the loan or lease as an adjustment to the yield. Loans & leases are placed on non-accrual status when the collection of principal or interest is in doubt or when they become past due for 90 days or more unless they are both well-secured and in the process of collection. For this purpose, a loan or lease is considered well-secured if it is collateralized by property having a net realizable value in excess of the amount of the loan or lease or is guaranteed by a financially capable party. When a loan or lease is placed on non-accrual status, the accrued and unpaid interest receivable is reversed and charged against current income; thereafter, interest income is recognized only as it is collected in cash. Additionally, cash would be applied to principal if all principal was not expected to be collected. Loans & leases placed on non-accrual status are returned to accrual status when the loans or leases are paid current as to principal and interest and future payments are expected to be made in accordance with the contractual terms of the loan or lease. A loan or lease is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due, including principal and interest, according to the contractual terms of the original agreement. Impaired loans & leases are either: (1) non-accrual loans & leases; or (2) restructured loans & leases that are still accruing interest. Loans or leases determined to be impaired are individually evaluated for impairment. When a loan or lease is impaired, the Company measures impairment based on the present value of expected future cash flows discounted at the loan or lease’s effective interest rate, except that as a practical expedient, it may measure impairment based on a loan or lease’s observable market price, or the fair value of the collateral if the loan or lease is collateral dependent. A loan or lease is collateral dependent if the repayment of the loan or lease is expected to be provided solely by the underlying collateral. A restructuring of a loan or lease constitutes a troubled debt restructuring (TDR) if the Company for economic or legal reasons related to the borrower’s (the term “borrower” is used herein to describe a customer who has entered into either a loan or lease transaction) financial difficulties grants a concession to the borrower that it would not otherwise consider. Restructured loans & leases typically present an elevated level of credit risk as the borrowers are not able to perform according to the original contractual terms. If the restructured loan or lease was current on all payments at the time of restructure and management reasonably expects the borrower will continue to perform after the restructure, management may keep the loan or lease on accrual. Loans & leases that are on nonaccrual status at the time they become TDR, remain on nonaccrual status until the borrower demonstrates a sustained period of performance, which the Company generally believes to be six consecutive months of payments, or equivalent. A loan or lease can be removed from TDR status if it was restructured at a market rate in a prior calendar year and is currently in compliance with its modified terms. However, these loans or leases continue to be classified as impaired and are individually evaluated for impairment as described above. Generally, the Company will not restructure loans or leases for borrowers unless: (1) the existing loan or lease is brought current as to principal and interest payments; and (2) the restructured loan or lease can be underwritten to reasonable underwriting standards. If these standards are not met other actions will be pursued (e.g., foreclosure) to collect outstanding loan or lease amounts. After restructure, a determination is made whether the loan or lease will be kept on accrual status based upon the underwriting and historical performance of the restructured credit. Allowance for Credit Losses The allowance for credit losses is an estimate of probable incurred credit losses inherent in the Company’s loan & lease portfolio as of the balance sheet date. The allowance is established through a provision for credit losses, which is charged to expense. Additions to the allowance are expected to maintain the adequacy of the total allowance after credit losses and loan & lease growth. Credit exposures determined to be uncollectible are charged against the allowance. Cash received on previously charged off amounts is recorded as a recovery to the allowance. The overall allowance consists of three primary components: specific reserves related to impaired loans & leases; general reserves for inherent losses related to loans & leases that are not impaired; and an unallocated component that takes into account the imprecision in estimating and allocating allowance balances associated with macro factors. The determination of the general reserve for loans & leases that are collectively evaluated for impairment is based on estimates made by management, to include, but not limited to, consideration of historical losses by portfolio segment, internal asset classifications, qualitative factors that include economic trends in the Company’s service areas, industry experience and trends, geographic concentrations, estimated collateral values, the Company’s underwriting policies, the character of the loan & lease portfolio, and probable losses inherent in the portfolio taken as a whole. The Company maintains a separate allowance for each portfolio segment (loan & lease type). These portfolio segments include: (1) commercial real estate; (2) agricultural real estate; (3) real estate construction (including land and development loans); (4) residential 1 st The Company assigns a risk rating to all loans & leases and periodically performs detailed reviews of all such loans & leases over a certain threshold to identify credit risks and assess overall collectability. For smaller balance loans & leases, such as consumer and residential real estate, a credit grade is established at inception, and then updated only when the loan or lease becomes contractually delinquent or when the borrower requests a modification. For larger balance loans, management monitors and analyzes the financial condition of borrowers and guarantors, trends in the industries in which borrowers operate and the fair values of collateral securing these loans & leases. These credit quality indicators are used to assign a risk rating to each individual loan or lease. These risk ratings are also subject to examination by independent specialists engaged by the Company. The risk ratings can be grouped into five major categories, defined as follows: Pass – A pass loan or lease is a strong credit with no existing or known potential weaknesses deserving of management’s close attention. Special Mention – A special mention loan or lease has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or lease or in the Company’s credit position at some future date. Special mention loans & leases are not adversely classified and do not expose the Company to sufficient risk to warrant adverse classification. Substandard – A substandard loan or lease is not adequately protected by the current financial condition and paying capacity of the borrower or the value of the collateral pledged, if any. Loans or leases classified as substandard have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. Well-defined weaknesses include a project’s lack of marketability, inadequate cash flow or collateral support, failure to complete construction on time or the project’s failure to fulfill economic expectations. Doubtful – Loss – Loans or leases classified as loss are considered uncollectible. Once a loan or lease becomes delinquent and repayment becomes questionable, the Company will address collateral shortfalls with the borrower and attempt to obtain additional collateral. If this is not forthcoming and payment in full is unlikely, the Company will estimate its probable loss and immediately charge-off some or all of the balance. The general reserve component of the allowance for credit losses also consists of reserve factors that are based on management’s assessment of the following for each portfolio segment: (1) inherent credit risk; (2) historical losses; and (3) other qualitative factors. These reserve factors are inherently subjective and are driven by the repayment risk associated with each portfolio segment described below: Commercial Real Estate – Commercial real estate mortgage loans are generally considered to possess a higher inherent risk of loss than the Company’s commercial, agricultural and consumer loan types. Adverse economic developments or an overbuilt market impact commercial real estate projects and may result in troubled loans. Trends in vacancy rates of commercial properties impact the credit quality of these loans. High vacancy rates reduce operating revenues and the ability for properties to produce sufficient cash flow to service debt obligations. Real Estate Construction – Real estate construction loans, including land loans, are generally considered to possess a higher inherent risk of loss than the Company’s commercial, agricultural and consumer loan types. A major risk arises from the necessity to complete projects within specified cost and time lines. Trends in the construction industry significantly impact the credit quality of these loans, as demand drives construction activity. In addition, trends in real estate values significantly impact the credit quality of these loans, as property values determine the economic viability of construction projects. Commercial – These loans are generally considered to possess a moderate inherent risk of loss because they are shorter-term; typically made to relationship customers; generally underwritten to existing cash flows of operating businesses; and may be collateralized by fixed assets, inventory and/or accounts receivable. Debt coverage is provided by business cash flows and economic trends influenced by unemployment rates and other key economic indicators are closely correlated to the credit quality of these loans. Agricultural Real Estate and Agricultural – These loans are generally considered to possess a moderate inherent risk of loss since they are typically made to relationship customers and are secured by crop production, livestock and related real estate. These loans are vulnerable to two risk factors that are largely outside the control of Company and borrowers: commodity prices and weather conditions. Leases – Equipment leases are generally considered to possess a moderate inherent risk of loss. As lessor, the Company is subject to both the credit risk of the borrower and the residual value risk of the equipment. Credit risks are underwritten using the same credit criteria the Company would use when making an equipment term loan. Residual value risk is managed through the use of qualified, independent appraisers that establish the residual values the Company uses in structuring a lease. Residential 1st Mortgages and Home Equity Lines and Loans – These loans are generally considered to possess a lower inherent risk of loss. The degree of risk in residential real estate lending depends primarily on the loan amount in relation to collateral value, the interest rate and the borrower’s ability to repay in an orderly fashion. Economic trends determined by unemployment rates and other key economic indicators are closely correlated to the credit quality of these loans. Weak economic trends indicate that the borrowers’ capacity to repay their obligations may be deteriorating. Consumer & Other – A consumer installment loan portfolio is usually comprised of a large number of small loans scheduled to be amortized over a specific period. Most installment loans are made for consumer purchases. Economic trends determined by unemployment rates and other key economic indicators are closely correlated to the credit quality of these loans. Weak economic trends indicate that the borrowers’ capacity to repay their obligations may be deteriorating. At least quarterly, the Board of Directors reviews the adequacy of the allowance, including consideration of the relative risks in the portfolio, current economic conditions and other factors. If the Board of Directors and management determine that changes are warranted based on those reviews, the allowance is adjusted. In addition, the Company’s and Bank’s regulators, including the Federal Reserve Board (“FRB”), the California Department of Business Oversight (“DBO”) and the Federal Deposit Insurance Corporation (“FDIC”), as an integral part of their examination process, review the adequacy of the allowance. These regulatory agencies may require additions to the allowance based on their judgment about information available at the time of their examinations. Acquired Loans Loans acquired through purchase or through a business combination are recorded at their fair value at the acquisition date. Credit discounts, which reflect estimates of credit losses, expected to be incurred over the life of the loan, are included in the determination of fair value; therefore, an allowance for loan losses is not recorded at the acquisition date. Allowance for Credit Losses on Off-Balance-Sheet Credit Exposures The Company also maintains a separate allowance for off-balance-sheet commitments. Management estimates anticipated losses using historical data and utilization assumptions. The allowance for off-balance-sheet commitments is included in Interest Payable and Other Liabilities on the Company’s Consolidated Balance Sheet. Premises and Equipment Premises, equipment, and leasehold improvements are stated at cost, less accumulated depreciation and amortization. Depreciation is computed principally by the straight-line method over the estimated useful lives of the assets. Estimated useful lives of buildings range from 30 to 40 years, and for furniture and equipment from 3 to 7 years. Leasehold improvements are amortized over the lesser of the terms of the respective leases, or their useful lives, which are generally 5 to 10 years. Remodeling and capital improvements are capitalized while maintenance and repairs are charged directly to occupancy expense. Other Real Estate Other real estate, which is included in other assets, is expected to be sold and is comprised of properties no longer utilized for business operations and property acquired through foreclosure in satisfaction of indebtedness. These properties are recorded at fair value less estimated selling costs upon acquisition. Revised estimates to the fair value less cost to sell are reported as adjustments to the carrying amount of the asset, provided that such adjusted value is not in excess of the carrying amount at acquisition. Initial losses on properties acquired through full or partial satisfaction of debt are treated as credit losses and charged to the allowance for credit losses at the time of acquisition. Subsequent declines in value from the recorded amounts, routine holding costs, and gains or losses upon disposition, if any, are included in non-interest expense as incurred. Income Taxes The Company uses the liability method of accounting for income taxes. This method results in the recognition of deferred tax assets and liabilities that are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. The deferred provision for income taxes is the result of the net change in the deferred tax asset and deferred tax liability balances during the year. This amount combined with the current taxes payable or refundable results in the income tax expense for the current year. The Company follows the standards set forth in the “Income Taxes” topic of the Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”), which clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements. This standard prescribes a recognition threshold and measurement standard for the financial statement recognition and measurement of an income tax position taken or expected to be taken in a tax return. It also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure, and transition. The Company accounts for leases with Investment Tax Credits (ITC) under the deferred method as established in ASC 740-10. ITC are viewed and accounted for as a reduction of the cost of the related assets and presented as deferred income on the Company’s financial statement. The Company accounts for its interest in LIHTC using the cost method as established in ASC 323-740. As an investor, the Company obtains income tax credits and deductions from the operating losses of these tax credit entities. The income tax credits and deductions are allocated to the investors based on their ownership percentages and are recorded as a reduction of income tax expense (or an increase to income tax benefit) and a reduction of federal income taxes payable. When tax returns are filed, it is highly certain that some positions taken would be sustained upon examination by the taxing authorities, while others are subject to uncertainty about the merits of the position taken or the amount of the position that would be ultimately sustained. The benefit of a tax position is recognized in the financial statements in the period during which, based on all available evidence, management believes it is more likely than not that the position will be sustained upon examination, including the resolution of appeals or litigation processes, if any. Tax positions taken are not offset or aggregated with other positions. Tax positions that meet the more-likely-than-not recognition threshold are measured as the largest amount of tax benefit that is more than 50 percent likely of being realized upon settlement with the applicable taxing authority. The portion of the benefits associated with tax positions taken that exceeds the amount measured as described above is reflected as a liability for unrecognized tax benefits in the accompanying consolidated balance sheet along with any associated interest and penalties that would be payable to the taxing authorities upon examination. At December 31, 2019 and 2018, the Company has no material uncertain tax positions and recognized no interest or penalties. The Company’s policy is to recognize interest and penalties related to income taxes in the provision for income taxes in the Consolidated Statement of Income. Basic and Diluted Earnings Per Common Share The Company’s common stock is not traded on any exchange. However, trades are reported on the OTCQX under the symbol “FMCB”. The shares are primarily held by local residents and are not actively traded. Basic earnings per common share amounts are computed by dividing net income by the weighted average number of common shares outstanding for the period. There are no common stock equivalent shares. Therefore, there is no presentation of diluted basic earnings per common share. See Note 14 - “Dividends and Basic Earnings Per Common Share” for additional information. Segment Reporting The “Segment Reporting” topic of the FASB ASC requires that public companies report certain information about operating segments. It also requires that public companies report certain information about their products and services, the geographic areas in which they operate, and their major customers. The Company is a holding company for a community bank, which offers a wide array of products and services to its customers. Pursuant to its banking strategy, emphasis is placed on building relationships with its customers, as opposed to building specific lines of business. As a result, the Company is not organized around discernible lines of business and prefers to work as an integrated unit to customize solutions for its customers, with business line emphasis and product offerings changing over time as needs and demands change. Comprehensive Income The “Comprehensive Income” topic of the FASB ASC establishes standards for the reporting and display of comprehensive income and its components in the financial statements. Other comprehensive income refers to revenues, expenses, gains, and losses that U.S. GAAP recognize as changes in value to an enterprise but are excluded from net inco

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2019
Investment Securities [Abstract]
Investment Securities	2. Investment Securities The amortized cost, fair values, and unrealized gains and losses of the securities available-for-sale (in thousands) Amortized Gross Unrealized Fair/Book December 31, 2019 Cost Gains Losses Value US Treasury Notes $ 54,745 $ 250 $ - $ 54,995 US Govt SBA 10,902 9 113 10,798 Mortgage Backed Securities (1) 436,531 4,646 99 441,078 Other 515 - - 515 Total $ 502,693 $ 4,905 $ 212 $ 507,386 Amortized Gross Unrealized Fair/Book December 31, 2018 Cost Gains Losses Value Government Agency & Government-Sponsored Entities $ 3,033 $ 6 $ - $ 3,039 US Treasury Notes 164,672 - 158 164,514 US Govt SBA 15,601 6 160 15,447 Mortgage Backed Securities (1) 310,982 1,196 5,133 307,045 Other 5,351 - - 5,351 Total $ 499,639 $ 1,208 $ 5,451 $ 495,396 (1) The book values, estimated fair values and unrealized gains and losses of investments classified as held-to-maturity (in thousands) Book Gross Unrealized Fair December 31, 2019 Value Gains Losses Value Obligations of States and Political Subdivisions $ 60,229 $ 880 $ 12 $ 61,097 Total $ 60,229 $ 880 $ 12 $ 61,097 Book Gross Unrealized Fair December 31, 2018 Value Gains Losses Value Obligations of States and Political Subdivisions $ 53,566 $ 211 $ 39 $ 53,738 Total $ 53,566 $ 211 $ 39 $ 53,738 Fair values are based on quoted market prices or dealer quotes. If a quoted market price or dealer quote is not available, fair value is estimated using quoted market prices for similar securities. The amortized cost and estimated fair values of investment securities at December 31, 2019 by contractual maturity are shown in the following tables. (in thousands) Available-for-Sale Held-to-Maturity December 31, 2019 Amortized Cost Fair/Book Value Book Value Fair Value Within One Year $ 40,509 $ 40,510 $ 2,446 $ 2,446 After One Year Through Five Years 15,146 15,393 5,902 5,905 After Five Years Through Ten Years 955 955 23,980 24,689 After Ten Years 9,552 9,450 27,901 28,057 66,162 66,308 60,229 61,097 Investment Securities Not Due at a Single Maturity Date: Mortgage Backed Securities 436,531 441,078 - - Total $ 502,693 $ 507,386 $ 60,229 $ 61,097 Expected maturities of mortgage-backed securities may differ from contractual maturities because borrowers have the right to call or prepay obligations with or without call or prepayment penalties. The following tables show those investments with gross unrealized losses and their market value aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at the dates indicated. (in thousands) Less Than 12 Months 12 Months or More Total December 31, 2019 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Securities Available-for-Sale US Govt SBA $ 2,693 $ 6 $ 5,198 $ 107 $ 7,891 $ 113 Mortgage Backed Securities 131,005 88 713 11 131,718 99 Total $ 133,698 $ 94 $ 5,911 $ 118 $ 139,609 $ 212 Securities Held-to-Maturity Obligations of States and Political Subdivisions $ 355 $ 12 $ - $ - $ 355 $ 12 Total $ 355 $ 12 $ - $ - $ 355 $ 12 Less Than 12 Months 12 Months or More Total December 31, 2018 Fair Unrealized Fair Unrealized Fair Unrealized Securities Available-for-Sale US Treasury Notes $ 124,985 $ 7 $ 39,529 $ 151 $ 164,514 $ 158 US Govt SBA 3,250 28 8,618 132 11,868 160 Mortgage Backed Securities 52,289 528 207,271 4,605 259,560 5,133 Total $ 180,524 $ 563 $ 255,418 $ 4,888 $ 435,942 $ 5,451 Securities Held-to-Maturity Obligations of States and Political Subdivisions $ 6,052 $ 23 $ 849 $ 16 $ 6,901 $ 39 Total $ 6,052 $ 23 $ 849 $ 16 $ 6,901 $ 39 As of December 31, 2019, the Company held 595 investment securities of which 29 were in an unrealized loss position for less than twelve months and 74 securities were in an unrealized loss position for twelve months or more. Management periodically evaluates each investment security for other-than-temporary impairment relying primarily on industry analyst reports and observations of market conditions and interest rate fluctuations. Management believes it will be able to collect all amounts due according to the contractual terms of the underlying investment securities. Securities of Government Agency and Government Sponsored Entities U.S. Treasury Notes U.S. Government SBA Mortgage Backed Securities Obligations of States and Political Subdivisions The unrealized losses on the Company’s investment in obligation of states and political subdivisions were $12,000 at December 31, 2019 and $39,000 at December 31, 2018. Management believes that any unrealized losses on the Company’s investments in obligations of states and political subdivisions were caused by interest rate fluctuations. The contractual terms of these investments do not permit the issuer to settle the securities at a price less than the amortized cost of the investment. Because the Company does not intend to sell the securities and it is more likely than not that the Company would not have to sell the securities before recovery of their cost basis, the Company did not consider these investments to be other-than-temporarily impaired at December 31, 2019 and December 31, 2018. Proceeds from sales and calls of these securities were as follows: (in thousands) Gross Proceeds Gross Gains Gross Losses 2019 $ 5,300 $ 1 $ - 2018 $ 99,323 $ 78 $ 1,338 2017 $ 7,831 $ 143 $ 12 Pledged Securities As of December 31, 2019, securities carried at $352.5 million were pledged to secure public deposits, Federal Home Loan Bank (“FHLB”) borrowings, and other government agency deposits as required by law. This amount was $268.8 million at December 31, 2018.

Federal Home Loan Bank Stock an

Federal Home Loan Bank Stock and Other Equity Securities, at Cost	12 Months Ended
	Dec. 31, 2019
Federal Home Loan Bank Stock and Other Equity Securities, at Cost [Abstract]
Federal Home Loan Bank Stock and Other Equity Securities, at Cost	3. Federal Home Loan Bank Stock and Other Equity Securities, at Cost The Bank is a member of the FHLB system. Members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional amounts. FHLB stock and other equity securities are carried at cost, classified as restricted securities, and periodically evaluated for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as income. FHLB stock and other equity securities are reported in Interest Receivable and Other Assets on the Company’s Consolidated Balance Sheets and totaled $12.7 million at December 31, 2019 and $12.6 million at December 31, 2018.

Loans & Leases

Loans & Leases	12 Months Ended
	Dec. 31, 2019
Loans & Leases [Abstract]
Loans & Leases	4. Loans & Leases Loans & leases as of December 31 consisted of the following: (in thousands) 2019 2018 Commercial Real Estate $ 846,486 $ 834,476 Agricultural Real Estate 625,767 584,625 Real Estate Construction 115,644 98,568 Residential 1st Mortgages 255,253 259,736 Home Equity Lines and Loans 39,270 40,789 Agricultural 292,904 290,463 Commercial 384,795 343,834 Consumer & Other 15,422 19,412 Leases 104,470 106,217 Total Gross Loans & Leases 2,680,011 2,578,120 Less: Unearned Income 6,984 6,879 Subtotal 2,673,027 2,571,241 Less: Allowance for Credit Losses 55,012 55,266 Loans & Leases, Net $ 2,618,015 $ 2,515,975 At December 31, 2019, the portion of loans that were approved for pledging as collateral on borrowing lines with the Federal Home Loan Bank (“FHLB”) and the Federal Reserve Bank (“FRB”) were $793.5 million and $696.5 million, respectively. The borrowing capacity on these loans was $668.4 million from FHLB and $441.3 million from the FRB.

Allowance for Credit Losses

Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2019
Allowance for Credit Losses [Abstract]
Allowance for Credit Losses	5. Allowance for Credit Losses The following tables show the allocation of the allowance for credit losses at December 31, 2019 and December 31, 2018 by portfolio segment and by impairment methodology (in thousands) December 31, 2019 Commercial Real Estate Agricultural Real Estate Real Estate Construction Residential 1st Mortgages Home Equity Lines & Loans Agricultural Commercial Consumer & Other Leases Unallocated Total Year-To-Date Allowance for Credit Losses: Beginning Balance- January 1, 2019 $ 11,609 $ 14,092 $ 1,249 $ 880 $ 2,761 $ 8,242 $ 11,656 $ 494 $ 4,022 $ 261 $ 55,266 Charge-Offs - - - - - - (592 ) (83 ) - - (675 ) Recoveries - 38 - 13 28 - 90 52 - - 221 Provision (556 ) 998 700 (38 ) (114 ) (166 ) 312 (7 ) (860 ) (69 ) 200 Ending Balance- December 31, 2019 $ 11,053 $ 15,128 $ 1,949 $ 855 $ 2,675 $ 8,076 $ 11,466 $ 456 $ 3,162 $ 192 $ 55,012 Ending Balance Individually Evaluated for Impairment 234 - - 118 12 99 137 61 - - 661 Ending Balance Collectively Evaluated for Impairment 10,819 15,128 1,949 737 2,663 7,977 11,329 395 3,162 192 54,351 Loans & Leases: Ending Balance $ 838,570 $ 625,767 $ 115,644 $ 255,253 $ 39,270 $ 292,904 $ 384,795 $ 15,422 $ 105,402 $ - $ 2,673,027 Ending Balance Individually Evaluated for Impairment 4,524 5,654 - 2,368 229 188 1,528 200 - - 14,691 Ending Balance Collectively Evaluated for Impairment 834,046 620,113 115,644 252,885 39,041 292,716 383,267 15,222 105,402 - 2,658,336 December 31, 2018 Commercial Real Estate Agricultural Real Estate Real Estate Construction Residential 1st Mortgages Home Equity Lines & Loans Agricultural Commercial Consumer & Other Leases Unallocated Total Year-To-Date Allowance for Credit Losses: Beginning Balance- January 1, 2018 $ 10,922 $ 12,085 $ 1,846 $ 815 $ 2,324 $ 8,159 $ 9,197 $ 209 $ 3,363 $ 1,422 $ 50,342 Charge-Offs - - - (31 ) (8 ) - (613 ) (115 ) - - (767 ) Recoveries 2 - - 15 6 61 20 54 - - 158 Provision 685 2,007 (597 ) 81 439 22 3,052 346 659 (1,161 ) 5,533 Ending Balance- December 31, 2018 $ 11,609 $ 14,092 $ 1,249 $ 880 $ 2,761 $ 8,242 $ 11,656 $ 494 $ 4,022 $ 261 $ 55,266 Ending Balance Individually Evaluated for Impairment 234 - - 125 15 - 185 6 - - 565 Ending Balance Collectively Evaluated for Impairment 11,375 14,092 1,249 755 2,746 8,242 11,471 488 4,022 261 54,701 Loans & Leases: Ending Balance $ 826,549 $ 584,625 $ 98,568 $ 259,736 $ 40,789 $ 290,463 $ 343,834 $ 19,412 $ 107,265 $ - $ 2,571,241 Ending Balance Individually Evaluated for Impairment 4,676 7,238 - 2,491 297 - 1,639 6 - - 16,347 Ending Balance Collectively Evaluated for Impairment 821,873 577,387 98,568 257,245 40,492 290,463 342,195 19,406 107,265 - 2,554,894 The ending balance of loans individually evaluated for impairment includes restructured loans in the amount of $2.6 million and $2.8 million at December 31, 2019 and 2018, respectively, which are no longer disclosed or classified as TDR’s. The following tables show the loan & lease portfolio allocated by management’s internal risk ratings at December 31, 2019 and December 31, 2018 (in thousands) December 31, 2019 Pass Special Mention Substandard Total Loans Loans & Leases: Commercial Real Estate $ 831,941 $ 6,629 $ - $ 838,570 Agricultural Real Estate 611,792 1,136 12,839 625,767 Real Estate Construction 115,644 - - 115,644 Residential 1st Mortgages 254,459 - 794 255,253 Home Equity Lines and Loans 39,092 - 178 39,270 Agricultural 289,276 2,617 1,011 292,904 Commercial 380,650 3,239 906 384,795 Consumer & Other 14,934 - 488 15,422 Leases 105,402 - - 105,402 Total $ 2,643,190 $ 13,621 $ 16,216 $ 2,673,027 December 31, 2018 Pass Special Mention Substandard Total Loans Loans & Leases: Commercial Real Estate $ 823,983 $ 2,566 $ - $ 826,549 Agricultural Real Estate 566,612 4,703 13,310 584,625 Real Estate Construction 98,568 - - 98,568 Residential 1st Mortgages 259,208 - 528 259,736 Home Equity Lines and Loans 40,744 - 45 40,789 Agricultural 284,561 5,433 469 290,463 Commercial 343,085 163 586 343,834 Consumer & Other 19,229 - 183 19,412 Leases 107,265 - - 107,265 Total $ 2,543,255 $ 12,865 $ 15,121 $ 2,571,241 See Note 1. Significant Accounting Policies – Allowance for Credit Losses for a description of the internal risk ratings used by the Company. There were no loans & leases outstanding at December 31, 2019 and 2018 rated doubtful or loss. The following tables show an aging analysis of the loan & lease portfolio by the time past due at December 31, 2019 and December 31, 2018 (in thousands) December 31, 2019 30-59 Days Past Due 60-89 Days Past Due 90 Days and Still Accruing Nonaccrual Total Past Due Current Total Loans & Leases Loans & Leases: Commercial Real Estate $ - $ - $ - $ - $ - $ 838,570 $ 838,570 Agricultural Real Estate - - - - - 625,767 625,767 Real Estate Construction 240 - - - 240 115,404 115,644 Residential 1st Mortgages - - - - - 255,253 255,253 Home Equity Lines and Loans - - - - - 39,270 39,270 Agricultural - - - - - 292,904 292,904 Commercial 77 - - - 77 384,718 384,795 Consumer & Other 35 - - - 35 15,387 15,422 Leases - - - - - 105,402 105,402 Total $ 352 $ - $ - $ - $ 352 $ 2,672,675 $ 2,673,027 December 31, 2018 30-59 Days Past Due 60-89 Days Past Due 90 Days and Still Accruing Nonaccrual Total Past Due Current Total Loans & Leases Loans & Leases: Commercial Real Estate $ - $ 731 $ - $ - $ 731 $ 825,818 $ 826,549 Agricultural Real Estate - - - - - 584,625 584,625 Real Estate Construction 327 - - - 327 98,241 98,568 Residential 1st Mortgages 367 - - - 367 259,369 259,736 Home Equity Lines and Loans - - - - - 40,789 40,789 Agricultural - - - - - 290,463 290,463 Commercial - - - - - 343,834 343,834 Consumer & Other 13 - - - 13 19,399 19,412 Leases - - - - - 107,265 107,265 Total $ 707 $ 731 $ - $ - $ 1,438 $ 2,569,803 $ 2,571,241 There were no non-accrual loans & leases at December 31, 2019 or at December 31, 2018. There was no i The following tables show information related to impaired loans & leases at and for the year ended December 31, 2019 and December 31, 2018 (in thousands) December 31, 2019 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial Real Estate $ 86 $ 86 $ - $ 90 $ 8 Agricultural Real Estate 5,654 5,654 - 6,069 379 Commercial - - - 8 1 $ 5,740 $ 5,740 $ - $ 6,167 $ 388 With an allowance recorded: Commercial Real Estate $ 2,822 $ 2,822 $ 234 $ 2,853 $ 94 Residential 1st Mortgages 1,562 1,770 74 1,601 73 Home Equity Lines and Loans 68 79 7 71 4 Agricultural 188 188 99 195 6 Commercial 1,528 1,528 137 1,554 53 Consumer & Other 200 200 61 54 - $ 6,368 $ 6,587 $ 612 $ 6,328 $ 230 Total $ 12,108 $ 12,327 $ 612 $ 12,495 $ 618 December 31, 2018 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial Real Estate $ 95 $ 96 $ - $ 99 $ 8 Agricultural Real Estate 7,239 7,238 - 3,620 119 Residential 1st Mortgages - - - 226 8 $ 7,334 $ 7,334 $ - $ 3,945 $ 135 With an allowance recorded: Commercial Real Estate $ 2,902 $ 2,892 $ 234 $ 2,929 $ 96 Residential 1st Mortgages 1,640 1,838 82 1,371 48 Home Equity Lines and Loans 74 84 4 76 4 Commercial 1,644 1,639 185 1,834 58 Consumer & Other 6 7 6 7 - $ 6,266 $ 6,460 $ 511 $ 6,217 $ 206 Total $ 13,600 $ 13,794 $ 511 $ 10,162 $ 341 Total recorded investment shown in the prior table will not equal the total ending balance of loans & leases individually evaluated for impairment on the allocation of allowance table. This is because this table does not include impaired loans that were previously modified in a troubled debt restructuring, are currently performing and are no longer disclosed or classified as TDR’s. At December 31, 2019, there were no formal foreclosure proceedings in process for consumer mortgage loans secured by residential real estate properties. At December 31, 2019, the Company allocated $612,000 of specific reserves to $12.1 million of troubled debt restructured loans, all of which were performing. At December 31, 2018, the Company allocated $511,000 of specific reserves to $13.6 million of troubled debt restructured loans, all of which were performing. The Company had no commitments at December 31, 2019 and December 31, 2018 to lend additional amounts to customers with outstanding loans that are classified as troubled debt restructurings. During the year ended December 31, 2019, the terms of certain loans were modified as troubled debt restructurings. The modification of the terms of such loans included one or a combination of the following: a reduction of the stated interest rate of the loan; an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk; or a permanent reduction of the recorded investment in the loan. There were no modifications involving a reduction of the stated interest rate. Modifications involving an extension of the maturity date ranged from 3 months to 6 years. The following table presents loans by class modified as troubled debt restructured loans for the year ended December 31, 2019 (in thousands) December 31, 2019 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Agricultural 1 $ 201 $ 201 Consumer & Other 1 195 195 Total 2 $ 396 $ 396 The troubled debt restructurings described above increased the allowance for credit losses by $101,000. There were no charge-offs for the twelve months ended December 31, 2019. During the year ended December 31, 2019, there were no payment defaults on loans modified as troubled debt restructurings within twelve months following the modification. The Company considers a loan to be in payment default once it is greater than 90 days contractually past due under the modified terms. During the year ended December 31, 2018, the terms of certain loans were modified as troubled debt restructurings. The modification of the terms of such loans included one or a combination of the following: a reduction of the stated interest rate of the loan; an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk; or a permanent reduction of the recorded investment in the loan. Modifications involving a reduction of the stated interest rate of the loan were for 5 years. Modifications involving an extension of the maturity date were for 10 years. The following table presents loans by class modified as troubled debt restructured loans for the year ended December 31, 2018 (in thousands) December 31, 2018 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Agricultural Real Estate 1 $ 7,239 $ 7,239 Residential 1st Mortgages 2 286 255 Total 3 $ 7,525 $ 7,494 The troubled debt restructurings described above had minimal impact on the allowance for credit losses and resulted in charge-offs of $31,000 for the twelve months ended December 31, 2018. During the year ended December 31, 2018, there were no payment defaults on loans modified as troubled debt restructurings within twelve months following the modification. The Company considers a loan to be in payment default once it is greater than 90 days contractually past due under the modified terms.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2019
Premises and Equipment [Abstract]
Premises and Equipment	6. Premises and Equipment Premises and equipment as of December 31 st (in thousands) 2019 2018 Land and Buildings $ 53,997 $ 39,329 Furniture, Fixtures and Equipment 21,058 21,136 Leasehold Improvement 3,745 3,606 Subtotal 78,800 64,071 Less: Accumulated Depreciation and Amortization 33,529 31,448 Total $ 45,271 $ 32,623 Depreciation and amortization on premises and equipment included in occupancy and equipment expense amounted to $2,756,000, $2,421,000, and $2,186,000 for the years ended December 31, 2019, 2018 and 2017, respectively. Rental income was $183,000, $173,000, and $169,000 for the years ended December 31, 2019, 2018, and 2017, respectively.

Other Real Estate

Other Real Estate	12 Months Ended
	Dec. 31, 2019
Other Real Estate [Abstract]
Other Real Estate	7. Other Real Estate The Bank reported $873,000 in other real estate at December 31, 2019, and December 31, 2018. Other real estate includes property no longer utilized for business operations and property acquired through foreclosure proceedings. These properties are carried at fair value less selling costs determined at the date acquired. Losses, if any, arising from properties acquired through foreclosure are charged against the allowance for loan losses at the time of foreclosure. Subsequent declines in value, periodic holding costs, and net gains or losses on disposition are included in other operating expense as incurred. Other real estate is reported in Interest Receivable and Other Assets on the Company’s Consolidated Balance Sheets.

Time Deposits

Time Deposits	12 Months Ended
	Dec. 31, 2019
Time Deposits [Abstract]
Time Deposits	8. Time Deposits Time Deposits of $250,000 or more as of December 31 were as follows: (in thousands) 2019 2018 Balance $ 257,392 $ 219,022 At December 31, 2019, the scheduled maturities of time deposits were as follows: (in thousands) Scheduled Maturities 2020 $ 462,263 2021 46,150 2022 6,839 2023 1,676 2024 994 Total $ 517,922

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Income Taxes [Abstract]
Income Taxes	9. Income Taxes Current and deferred income tax expense (benefit) provided for the years ended December 31 consisted of the following: (in thousands) 2019 2018 2017 Current Federal $ 14,798 $ 2,517 $ 9,460 State 7,733 6,224 4,046 Total Current 22,531 8,741 13,506 Deferred Federal (3,500 ) 5,622 11,154 State 246 (160 ) 1,451 Total Deferred (3,254 ) 5,462 12,605 Total Provision for Taxes $ 19,277 $ 14,203 $ 26,111 The total provision for income taxes differs from the federal statutory rate as follows: 2019 2018 2017 (in thousands) Amount Rate Amount Rate Amount Rate Tax Provision at Federal Statutory Rate $ 15,816 21.0 % $ 12,543 21.0 % $ 19,068 35.0 % Interest on Obligations of States and Political Subdivisions exempt from Federal Taxation (358 ) (0.5 %) (338 ) (0.6 %) (617 ) (1.1 %) State and Local Income Taxes, Net of Federal Income Tax Benefit 6,304 8.4 % 4,791 7.9 % 3,573 6.5 % Bank Owned Life Insurance (460 ) (0.6 %) (434 ) (0.7 %) (696 ) (1.3 %) Low-Income Housing Tax Credit (2,078 ) (2.8 %) (1,624 ) (2.7 %) (1,546 ) (2.8 %) Out of Period Adjustment - 0.0 % (802 ) (1.3 %) - 0.0 % Deferred Tax Asset Remeasurement - 0.0 % - 0.0 % 6,256 11.5 % Other, Net 53 0.1 % 67 0.1 % 73 0.1 % Total Provision for Taxes $ 19,277 25.6 % $ 14,203 23.8 % $ 26,111 47.9 % The components of net deferred tax assets as of December 31 are as follows: The net deferred tax assets are reported in Interest Receivable and Other Assets on the Company’s Consolidated Balance Sheet. (in thousands) 2019 2018 Deferred Tax Assets Allowance for Credit Losses $ 15,925 $ 15,877 Accrued Liabilities 8,452 7,444 Deferred Compensation 14,200 11,207 State Franchise Tax 1,624 1,307 Tax Credit Carry Forward 1,266 - Lease Liability 1,487 - Acquired Net Operating Loss 673 715 Fair Value Adjustment on Loans Acquired 286 300 Fair Value Adjustment on ORE Acquired 108 108 Unrealized Loss on Securities Available-for-Sale - 1,800 Low-Income Housing Investment 286 412 Other 2 7 Total Deferred Tax Assets $ 44,309 $ 39,177 Deferred Tax Liabilities Premises and Equipment (1,974 ) (2,226 ) Securities Accretion (370 ) (229 ) Unrealized Gain on Securities Available-for-Sale (935 ) - Leasing Activities (19,226 ) (17,215 ) Core Deposit Intangible Asset (1,372 ) (1,560 ) ROU Lease Asset (1,471 ) - Prepaid (66 ) (116 ) Other (898 ) (1,000 ) Total Deferred Tax Liabilities (26,312 ) (22,346 ) Net Deferred Tax Assets $ 17,997 $ 16,831 The Tax Cuts and Jobs Act of 2017, which lowers the Company’s previous 35% federal corporate tax rate to 21%, was signed into law by President Trump on December 22, 2017. In accordance with the ASC Topic 740, Income Taxes, companies must recognize the effect of tax law changes in the period of enactment. As a result, the Company was required to re-measure its deferred tax assets (DTA) and deferred tax liabilities (DTL) at the new tax rate of 21%. This onetime re-measurement resulted in a $6.3 million increase in the Company’s income tax provision in 2017. Based upon the level of historical taxable income and projections for future taxable income over the periods during which the deferred tax assets are expected to be deductible, Management believes it is more likely than not we will realize the benefit of the remaining deferred tax assets. The net deferred tax assets are reported in Interest Receivable and Other Assets on the Company’s Consolidated Balance Sheet. The Company and its subsidiaries file income tax returns in the U.S. federal and California jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by the tax authorities for the years before 2015.

Short Term Borrowings

Short Term Borrowings	12 Months Ended
	Dec. 31, 2019
Short Term Borrowings [Abstract]
Short Term Borrowings	10. Short Term Borrowings As of December 31, 2019 and 2018, the Company had unused lines of credit available for short-term liquidity purposes of $1.3 billion and $1.2 billion, respectively. Federal Funds purchased and advances are generally issued on an overnight basis. There were no advances from the FHLB at December 31, 2019 or 2018. There were no Federal Funds purchased or advances from the FRB at December 31, 2019 or 2018.

Federal Home Loan Bank Advances

Federal Home Loan Bank Advances	12 Months Ended
	Dec. 31, 2019
Federal Home Loan Bank Advances [Abstract]
Federal Home Loan Bank Advances	11. Federal Home Loan Bank Advances The Company had no short-term or long-term advances from the Federal Home Loan Bank of San Francisco at December 31, 2019 or 2018. In accordance with the Collateral Pledge and Security Agreement, advances are secured by all FHLB stock held by the Company. At December 31, 2019, $793.5 million in loans were approved for pledging as collateral on borrowing lines with the FHLB. The borrowing capacity on these loans was $668.4 million.

Long-term Subordinated Debentur

Long-term Subordinated Debentures	12 Months Ended
	Dec. 31, 2019
Long-term Subordinated Debentures [Abstract]
Long-term Subordinated Debentures	12. Long-term Subordinated Debentures In December 2003, the Company formed a wholly owned Connecticut statutory business trust, FMCB Statutory Trust I (“Statutory Trust I”), which issued $10.0 million of guaranteed preferred beneficial interests in the Company’s junior subordinated deferrable interest debentures (the “Trust Preferred Securities”). The Company is not considered the primary beneficiary of the trust (variable interest entity), therefore the trust is not consolidated in the Company’s financial statements, but rather the subordinated debentures are shown as a liability. These debentures qualify as Tier 1 capital under current regulatory guidelines. All of the common securities of Statutory Trust I are owned by the Company. The proceeds from the issuance of the common securities and the Trust Preferred Securities were used by FMCB Statutory Trust to purchase $10.3 million of junior subordinated debentures of the Company, which carry a floating rate based on three-month LIBOR plus 2.85%. The debentures represent the sole asset of Statutory Trust I. The Trust Preferred Securities accrue and pay distributions at a floating rate of three-month LIBOR plus 2.85% per annum of the stated liquidation value of $1,000 per capital security. The Company has entered into contractual arrangements which, taken collectively, fully and unconditionally guarantee payment to the extent that Statutory Trust I has funds available therefore of: (i) accrued and unpaid distributions required to be paid on the Trust Preferred Securities; (ii) the redemption price with respect to any Trust Preferred Securities called for redemption by Statutory Trust I; and (iii) payments due upon a voluntary or involuntary dissolution, winding up, or liquidation of Statutory Trust I. The Trust Preferred Securities are mandatorily redeemable upon maturity of the subordinated debentures on December 17, 2033, or upon earlier redemption as provided in the indenture. The Company has the right to redeem the subordinated debentures purchased by Statutory Trust I, in whole or in part, on or after December 17, 2008. As specified in the indenture, if the subordinated debentures are redeemed prior to maturity, the redemption price will be the principal amount and any accrued but unpaid interest. Additionally, if the Company decided to defer interest on the subordinated debentures, the Company would be prohibited from paying cash dividends on the Company’s common stock.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2019
Shareholders' Equity [Abstract]
Shareholders' Equity	13. Shareholders’ Equity In 1998, the Board approved the Company’s first common stock repurchase program. This program has been extended and expanded several times since then, and most recently, on November 6, 2018, the Board of Directors approved an extension of the $20 million stock repurchase program to December 31, 2021. Repurchases under the program may be made from time to time on the open market or through private transactions. The repurchase program also requires that no repurchases may be made if the Bank would not remain “well-capitalized” after the repurchase. There were no stock repurchases made in 2019 or 2018 under the Common Stock Repurchase Plan. However, in the third quarter of 2018 the Company did repurchase $31.2 million of shares, at $700 per share, in a single transaction from the estate of a large shareholder. Dividends from the Bank constitute the principal source of cash to the Company. The Company is a legal entity separate and distinct from the Bank. Under regulations controlling California state chartered banks, the Bank is, to some extent, limited in the amount of dividends that can be paid to the Company without prior approval of the California DBO. These regulations require approval if total dividends declared by a state chartered bank in any calendar year exceed the bank’s net profits for that year combined with its retained net profits for the preceding two calendar years. During 2019, the Company issued a combined total 9,312 shares of common stock to the Bank’s non-qualified deferred compensation retirement plans. All of the shares were issued at prices ranging from $715.00 to $770.00 per share based upon valuations completed during the quarter of issuance by a nationally recognized bank consulting and advisory firm and in reliance upon the exemption in Section 4(a)(2) of the Securities Act of 1933, as amended, and the regulations promulgated thereunder. The proceeds were contributed to the Bank as equity capital. During 2018, the Company issued a combined total 13,520 shares of common stock to the Bank’s non-qualified deferred compensation retirement plans. There were also 2,400 shares issued to individuals during 2018. All of the shares were issued at prices ranging from $635.00 to $690.00 per share based upon valuations completed during the quarter of issuance by a nationally recognized bank consulting and advisory firm and in reliance upon the exemption in Section 4(a)(2) of the Securities Act of 1933, as amended, and the regulations promulgated thereunder. The proceeds were contributed to the Bank as equity capital. The Company and the Bank are subject to various federal regulatory capital requirements under the Basel III Capital Rules. Failure to meet minimum capital requirements can initiate certain mandatory, and possibly discretionary, actions by regulators that, if undertaken, could have a direct material effect on the Company’s and the Bank’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of the Company and the Bank’s assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. The Company and the Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. The implementation of Basel III requirements increased the required capital levels that the Company and the Bank must maintain. The final rules included new minimum risk-based capital and leverage ratios, which were phased in over time. The new minimum capital level requirements applicable to the Company and the Bank under the final rules are: (i) a common equity Tier 1 capital ratio of 4.5% of risk-weighted assets (“RWA”); (ii) a Tier 1 capital ratio of 6% of RWA; (iii) a total capital ratio of 8% of RWA; and (iv) a Tier 1 leverage ratio of 4% of total assets. The final rules also established a “capital conservation buffer” of 2.5% above each of the new regulatory minimum capital ratios, which resulted in the following minimum ratios: (i) a common equity Tier 1 capital ratio of 7.0% of RWA; (ii) a Tier 1 capital ratio of 8.5% of RWA; and (iii) a total capital ratio of 10.5% of RWA. An institution will be subject to limitations on paying dividends, engaging in share repurchases, and paying discretionary bonuses if its capital level falls below the buffer amount. The final rules also permit the Company’s subordinated debentures issued in 2003 to continue to be counted as Tier 1 capital. The final rules became effective as applied to the Company and the Bank on January 1, 2015, with a phase in period through January 1, 2019. The Company believes that it is currently in compliance with all of these capital requirements and that they will not result in any restrictions on the Company’s business activity. In addition, the most recent notification from the FDIC categorized the Bank as “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain minimum total risk-based, Tier 1 risk-based and Tier 1 leverage ratios as set forth in the following tables. There are no conditions or events since that notification that management believes have changed the Bank’s category. (in thousands) Actual Current Regulatory Capital Requirements Well Capitalized Under Prompt Corrective Action December 31, 2019 Amount Ratio Amount Ratio Amount Ratio Total Bank Capital to Risk Weighted Assets $ 399,230 12.33 % $ 259,012 8.00 % $ 323,765 10.00 % Total Consolidated Capital to Risk Weighted Assets $ 400,258 12.36 % $ 259,028 8.00 % N/A N/A Total Bank Common Equity Tier 1 Capital Ratio $ 358,576 11.08 % $ 145,694 4.50 % $ 210,447 6.50 % Total Consolidated Common Equity Tier 1 Capital Ratio $ 349,601 10.80 % $ 145,703 4.50 % N/A N/A Tier 1 Bank Capital to Risk Weighted Assets $ 358,576 11.08 % $ 194,259 6.00 % $ 259,012 8.00 % Tier 1 Consolidated Capital to Risk Weighted Assets $ 359,601 11.11 % $ 194,271 6.00 % N/A N/A Tier 1 Bank Capital to Average Assets $ 358,576 9.89 % $ 145,079 3.00 % $ 181,349 5.00 % Tier 1 Consolidated Capital to Average Assets $ 359,601 9.90 % $ 145,255 3.00 % N/A N/A (in thousands) Actual Current Regulatory Capital Requirements Well Capitalized Under Prompt Corrective Action December 31, 2018 Amount Ratio Amount Ratio Amount Ratio Total Bank Capital to Risk Weighted Assets $ 346,763 11.39 % $ 243,455 8.00 % $ 304,319 10.00 % Total Consolidated Capital to Risk Weighted Assets $ 346,845 11.40 % $ 243,459 8.00 % N/A N/A Total Bank Common Equity Tier 1 Capital Ratio $ 308,507 10.14 % $ 136,944 4.50 % $ 197,807 6.50 % Total Consolidated Common Equity Tier 1 Capital Ratio $ 298,588 9.81 % $ 136,945 4.50 % N/A N/A Tier 1 Bank Capital to Risk Weighted Assets $ 308,507 10.14 % $ 182,591 6.00 % $ 243,455 8.00 % Tier 1 Consolidated Capital to Risk Weighted Assets $ 308,588 10.14 % $ 182,594 6.00 % N/A N/A Tier 1 Bank Capital to Average Assets $ 308,507 9.15 % $ 134,822 3.00 % $ 168,527 5.00 % Tier 1 Consolidated Capital to Average Assets $ 308,588 9.08 % $ 135,949 3.00 % N/A N/A

Dividends and Basic Earnings Pe

Dividends and Basic Earnings Per Common Share	12 Months Ended
	Dec. 31, 2019
Dividends and Basic Earnings Per Common Share [Abstract]
Dividends and Basic Earnings Per Common Share	14. Dividends and Basic Earnings Per Common Share Total cash dividends during 2019 were $11,221,000 or $14.20 per share of common stock, an increase of 2.2% per share from $11,151,000 or $13.90 per share in 2018. In 2017, cash dividends totaled $10,982,000 or $13.55 per share. Basic earnings per common share amounts are computed by dividing net income by the weighted average number of common shares outstanding for the period. The Company has no securities or other contracts, such as stock options, that could require the issuance of common stock. Accordingly, diluted earnings per share are not presented. The following table calculates the basic earnings per common share for the periods indicated. ( net income in thousands 2019 2018 2017 Net Income $ 56,036 $ 45,527 $ 28,370 Weighted Average Number of Common Shares Outstanding 787,227 801,229 809,834 Basic Earnings Per Common Share $ 71.18 $ 56.82 $ 35.03

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2019
Employee Benefit Plans [Abstract]
Employee Benefit Plans	15. Employee Benefit Plans Profit Sharing Plan The Company, through the Bank, sponsors a Profit Sharing Plan for substantially all full-time employees of the Company with one or more years of service. Participants receive up to two annual employer contributions, one is discretionary and the other is mandatory. The discretionary contributions to the Profit Sharing Plan are determined annually by the Board of Directors. The discretionary contributions totaled $1.4 million, $1.2 million, and $1.0 million for the years ended December 31, 2019, 2018, and 2017, respectively. The mandatory contributions to the Profit Sharing Plan are made according to a predetermined set of criteria. Mandatory contributions totaled $1.6 million, $1.4 million, and $1.2 million for the years ended December 31, 2019, 2018, and 2017, respectively. Company employees are permitted, within limitations imposed by tax law, to make pretax contributions and after tax (Roth) contributions to the 401(k) feature of the Profit Sharing Plan. The Company does not match employee contributions within the 401(k) feature of the Profit Sharing Plan and the Company can terminate the Profit Sharing Plan at any time. Benefits pursuant to the Profit Sharing Plan vest 0% during the first year of participation, 25% per full year thereafter and after five years such benefits are fully vested. Executive Retirement Plan and Life Insurance Arrangements The Company, through the Bank, sponsors an Executive Retirement Plan for certain executive level employees. The Executive Retirement Plan is a non-qualified deferred compensation plan and was developed to supplement the Company’s Profit Sharing Plan, which, as a qualified retirement plan, has a ceiling on benefits as set by the Internal Revenue Service. The Plan is comprised of: (1) a Performance Component which makes contributions based upon long-term cumulative profitability and increase in market value of the Company; (2) a Salary Component which makes contributions based upon participant salary levels; and (3) an Equity Component for which contributions are discretionary and subject to Board of Directors approval. Executive Retirement Plan contributions are invested in a mix of financial instruments; however, the Equity Component contributions are invested primarily in stock of the Company. The Company expensed $6.6 million to the Executive Retirement Plan during the year ended December 31, 2019, $6.2 million during the year ended December 31, 2018 and $4.3 million during the year ended December 31, 2017. The Company’s total accrued liability under the Executive Retirement Plan was $58.6 million as of December 31, 2019 and $48.5 million as of December 31, 2018. All amounts have been fully funded into a Rabbi Trust as of December 31, 2019. The investments held in the Rabbi Trust are recorded at fair value with changes in unrealized gains or losses recorded within non-interest income and the equal and offsetting charges in the related liability are recorded in non-interest expense in the consolidated statements of income. Net gains on deferred compensation plan investments were $2.6 million in 2019 compared to net gains of $1.1 million in 2018. Balances in non-qualified deferred compensation plans may be invested in financial instruments whose market value fluctuates based upon trends in interest rates and stock prices. The Company has purchased single premium life insurance policies on the lives of certain key employees of the Company. These policies provide: (1) financial protection to the Company in the event of the death of a key employee; and (2) significant income to the Company to offset the expense associated with the Executive Retirement Plan and other employee benefit plans, since the interest earned on the cash surrender value of the policies is tax exempt as long as the policies are used to finance employee benefits. As compensation to each employee for agreeing to allow the Company to purchase an insurance policy on his or her life, split dollar agreements have been entered into with those employees. These agreements provide for a division of the life insurance death proceeds between the Company and each employee’s designated beneficiary or beneficiaries. The Company earned tax-exempt interest on the life insurance policies of $2.0 million for the year ended December 31, 2019, $1.9 million for the year ended December 31, 2018, and $1.8 million for the year ended December 31, 2017. As of December 31, 2019 and 2018, the total cash surrender value of the insurance policies was $67.1 million and $65.1 million, respectively. Senior Management Retention Plan The Company, through the Bank, sponsors a Senior Management Retention Plan (“SMRP”) for certain senior level employees. The SMRP is a non-qualified deferred compensation plan and was developed to supplement the Company’s Profit Sharing Plan, which, as a qualified retirement plan, has a ceiling on benefits as set by the Internal Revenue Service. All contributions are discretionary and subject to the Board of Directors approval. Contributions are invested primarily in stock of the Company. The Company expensed $1.3 million to the SMRP during the year ended December 31, 2019, $1.5 million during the year ended December 31, 2018 and $765,000 during the year ended December 31, 2017. The Company’s total accrued liability under the SMRP was $8.1 million as of December 31, 2019 and $5.7 million as of December 31, 2018. All amounts have been fully funded into a Rabbi Trust as of December 31, 2019.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2019
Fair Value Measurements [Abstract]
Fair Value Measurements	16. Fair Value Measurements The Company follows the “Fair Value Measurement and Disclosures” topic of the FASB ASC, which establishes a framework for measuring fair value in U.S. GAAP and expands disclosures about fair value measurements. This standard applies whenever other standards require, or permit, assets or liabilities to be measured at fair value but does not expand the use of fair value in any new circumstances. In this standard, the FASB clarifies the principle that fair value should be based on the assumptions market participants would use when pricing the asset or liability. In support of this principle, this standard establishes a fair value hierarchy that prioritizes the information used to develop those assumptions. The fair value hierarchy is as follows: Level 1 inputs – Unadjusted quoted prices in active markets for identical assets or liabilities that the entity has the ability to access at the measurement date. Level 2 inputs - Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability, such as interest rates and yield curves that are observable at commonly quoted intervals. Level 3 inputs - Unobservable inputs for determining the fair values of assets or liabilities that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities. Management monitors the availability of observable market data to assess the appropriate classification of financial instruments within the fair value hierarchy. Changes in economic conditions or model-based valuation techniques may require the transfer of financial instruments from one fair value level to another. In such instances, the transfer is reported at the beginning of the reporting period. Management evaluates the significance of transfers between levels based upon the nature of the financial instrument and size of the transfer relative to total assets, total liabilities or total earnings. Securities classified as available-for-sale are reported at fair value on a recurring basis utilizing Level 1, 2 and 3 inputs. For these securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. The Company does not record all loans & leases at fair value on a recurring basis. However, from time to time, a loan or lease is considered impaired and an allowance for credit losses is established. Once a loan or lease is identified as individually impaired, management measures impairment in accordance with the “Receivable” topic of the FASB ASC. The fair value of impaired loans or leases is estimated using one of several methods, including collateral value when the loan is collateral dependent, market value of similar debt, enterprise value, and discounted cash flows. Impaired loans & leases not requiring an allowance represent loans & leases for which the fair value of the expected repayments or collateral exceed the recorded investments in such loans & leases. Impaired loans & leases where an allowance is established based on the fair value of collateral require classification in the fair value hierarchy. Other Real Estate (“ORE”) is reported at fair value on a non-recurring basis. The following tables present information about the Company’s assets and liabilities measured at fair value on a recurring basis and indicate the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value for the periods indicated. Fair Value Measurements At December 31, 2019, Using (in thousands) Fair Value Total Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Available-for-Sale Securities: US Treasury Notes $ 54,995 $ 54,995 $ - $ - US Govt SBA 10,798 - 10,798 - Mortgage Backed Securities 441,078 - 441,078 - Other 515 205 310 - Total Assets Measured at Fair Value On a Recurring Basis $ 507,386 $ 55,200 $ 452,186 $ - Fair Value Measurements At December 31, 2018, Using (in thousands) Fair Value Total Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Available-for-Sale Securities: Government Agency & Government-Sponsored Entities $ 3,039 $ - $ 3,039 $ - US Treasury Notes 164,514 164,514 - - US Govt SBA 15,447 - 15,447 - Mortgage Backed Securities 307,045 - 307,045 - Other 5,351 202 310 4,839 Total Assets Measured at Fair Value On a Recurring Basis $ 495,396 $ 164,716 $ 325,841 $ 4,839 Fair values for Level 2 available-for-sale investment securities are based on quoted market prices for similar securities. During the year ended December 31, 2019, there were no transfers in or out of level 1, 2, or 3. The following tables present information about the Company’s impaired loans & leases and other real estate, classes of assets or liabilities that the Company carries at fair value on a non-recurring basis, and indicates the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value for the periods indicated. Not all impaired loans & leases are carried at fair value. Impaired loans & leases are only included in the following tables when their fair value is based upon an appraisal of the collateral, and if that appraisal results in a partial charge-off or the establishment of a specific reserve. Fair Value Measurements At December 31, 2019, Using (in thousands) Fair Value Total Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Impaired Loans: Commercial Real Estate $ 2,588 $ - $ - $ 2,588 Residential 1st Mortgage 1,403 - - 1,403 Home Equity Lines and Loans 142 - - 142 Agricultural 88 - - 88 Commercial 1,391 - - 1,391 Consumer 139 - - 139 Total Impaired Loans 5,751 - - 5,751 Other Real Estate: Real Estate Construction 873 - - 873 Total Other Real Estate 873 - - 873 Total Assets Measured at Fair Value On a Non-Recurring Basis $ 6,624 $ - $ - $ 6,624 Fair Value Measurements At December 31, 2018, Using (in thousands) Fair Value Total Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Impaired Loans: Commercial Real Estate $ 2,658 $ - $ - $ 2,658 Residential 1st Mortgage 1,550 - - 1,550 Home Equity Lines and Loans 70 - - 70 Commercial 1,454 - - 1,454 Total Impaired Loans 5,732 - - 5,732 Other Real Estate: Real Estate Construction 873 - - 873 Total Other Real Estate 873 - - 873 Total Assets Measured at Fair Value On a Non-Recurring Basis $ 6,605 $ - $ - $ 6,605 The Company’s property appraisals are primarily based on the sales comparison approach and the income approach methodologies, which consider recent sales of comparable properties, including their income generating characteristics, and then make adjustments to reflect the general assumptions that a market participant would make when analyzing the property for purchase. These adjustments may increase or decrease an appraised value and can vary significantly depending on the location, physical characteristics and income producing potential of each property. Additionally, the quality and volume of market information available at the time of the appraisal can vary from period to period and cause significant changes to the nature and magnitude of comparable sale adjustments. Given these variations, comparable sale adjustments are generally not a reliable indicator for how fair value will increase or decrease from period to period. Under certain circumstances, management discounts are applied based on specific characteristics of an individual property. The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at December 31, 2019 and 2018: December 31, 2019 (in thousands) Fair Value Valuation Technique Unobservable Inputs Range, Weighted Avg. Impaired Loans: Commercial Real Estate $ 2,588 Income Approach Capitalization Rate 3.3 % Residential 1st Mortgages $ 1,403 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 0.8% - 6.4%, 3 % Home Equity Lines and Loans $ 142 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 1% - 2%, 1.3 % Agricultural $ 88 Income Approach Capitalization Rate 4.3 % Commercial $ 1,391 Income Approach Capitalization Rate 3.3 % Consumer $ 139 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 40.6 % Other Real Estate: Real Estate Construction $ 873 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 10 % December 31, 2018 (in thousands) Fair Value Valuation Technique Unobservable Inputs Range, Weighted Avg. Impaired Loans: Commercial Real Estate $ 2,658 Income Approach Capitalization Rate 3.25 % Residential 1st Mortgages $ 1,550 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 1% - 4%, 3 % Home Equity Lines and Loans $ 70 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 1% - 2%, 2 % Commercial $ 1,454 Income Approach Capitalization Rate 2.95% - 8.70%, 3.40 % Other Real Estate: Real Estate Construction $ 873 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 10 %

Fair Value of Financial Instrum

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2019
Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Instruments	17. Fair Value of Financial Instruments U.S. GAAP requires disclosure of fair value information about financial instruments, whether or not recognized on the balance sheet, for which it is practical to estimate that value. The estimated fair value amounts have been determined by the Company using available market information and appropriate valuation methodologies. The use of assumptions and various valuation techniques, as well as the absence of secondary markets for certain financial instruments, will likely reduce the comparability of fair value disclosures between financial institutions. In some cases, book value is a reasonable estimate of fair value due to the relatively short period of time between origination of the instrument and its expected realization. The valuation of loans held for investment was impacted by the adoption of ASU 2016-01. In accordance with ASU 2016-01, the fair value of loans held for investment, excluding previously presented impaired loans measured at fair value on a non-recurring basis, is estimated using discounted cash flow analyses. The discount rates used to determine fair value use interest rate spreads that reflect factors such as liquidity, credit, and nonperformance risk of the loans. Loans are considered a Level 3 classification. The following tables summarize the book value and estimated fair value of financial instruments for the periods indicated: Fair Value of Financial Instruments Using December 31, 2019 (in thousands) Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Estimated Fair Value Assets: Cash and Cash Equivalents $ 294,758 $ 294,758 $ - $ - $ 294,758 Investment Securities Available-for-Sale 507,386 55,200 452,186 - 507,386 Investment Securities Held-to-Maturity 60,229 - 31,253 29,844 61,097 Loans & Leases, Net of Deferred Fees & Allowance 2,618,015 - - 2,584,805 2,584,805 Accrued Interest Receivable 16,733 - 16,733 - 16,733 Liabilities: Deposits 3,278,019 2,760,097 517,172 - 3,277,269 Subordinated Debentures 10,310 - 7,325 - 7,325 Accrued Interest Payable 2,795 - 2,795 - 2,795 Fair Value of Financial Instruments Using December 31, 2018 (in thousands) Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Estimated Fair Value Assets: Cash and Cash Equivalents $ 145,564 $ 145,564 $ - $ - $ 145,564 Investment Securities Available-for-Sale 495,396 164,716 325,841 4,839 495,396 Investment Securities Held-to-Maturity 53,566 - 35,083 18,655 53,738 Loans & Leases, Net of Deferred Fees & Allowance 2,515,975 - - 2,485,182 2,485,182 Accrued Interest Receivable 14,098 - 14,098 - 14,098 Liabilities: Deposits 3,062,832 2,572,805 485,766 - 3,058,571 Subordinated Debentures 10,310 - 7,745 - 7,745 Accrued Interest Payable 1,365 - 1,365 - 1,365

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies [Abstract]
Commitments and Contingencies	18. Commitments and Contingencies In the normal course of business, the Company enters into financial instruments with off balance sheet risk in order to meet the financing needs of its customers and to reduce its own exposure to fluctuations in interest rates. These instruments include commitments to extend credit, letters of credit, and other types of financial guarantees. The Company had the following off balance sheet commitments as of the dates indicated. (in thousands) December 31, 2019 December 31, 2018 Commitments to Extend Credit $ 919,982 $ 828,539 Letters of Credit 20,346 19,108 Performance Guarantees Under Interest Rate Swap Contracts Entered Into Between Our Borrowing Customers and Third Parties 1,513 - The Company’s exposure to credit loss in the event of nonperformance by the other party with regard to standby letters of credit, undisbursed loan commitments, and financial guarantees is represented by the contractual notional amount of those instruments. 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. The Company uses the same credit policies in making commitments and conditional obligations as it does for recorded balance sheet items. The Company may or may not require collateral or other security to support financial instruments with credit risk. Evaluations of each customer’s creditworthiness are performed on a case-by-case basis. Standby letters of credit are conditional commitments issued by the Company to guarantee performance of or payment for a customer to a third party. Outstanding standby letters of credit have maturity dates ranging from 1 to 25 months with final expiration in January 2022. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. In the ordinary course of business, the Company becomes involved in litigation arising out of its normal business activities. Management, after consultation with legal counsel, believes that the ultimate liability, if any, resulting from the disposition of such claims would not be material in relation to the financial position of the Company. The Company may be required to maintain average reserves on deposit with the Federal Reserve Bank primarily based on deposits outstanding. Reserve requirements are offset by the Company’s vault cash and deposit balances maintained with the Federal Reserve Bank.

Leases

Leases	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Leases	19. Leases Lessee – Operating Leases Effective January 1, 2019, the Company adopted the provisions of Accounting Standards Update (“ASU”) No. 2016-02, “Leases (Topic 842),” for all open leases with a term greater than one year as of the adoption date, using the modified retrospective approach. Prior comparable periods are presented in accordance with previous guidance under Accounting Standards Codification 840. Operating leases in which we are the lessee are recorded as operating lease right-of-use (“ROU”) assets and operating lease liabilities, included in other assets and other liabilities, respectively, on our consolidated balance sheets. We do not currently have any significant finance leases in which we are the lessee. Operating lease ROU assets represent our right to use an underlying asset during the lease term and operating lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and operating lease liabilities are recognized at lease commencement based on the present value of the remaining lease payments using a discount rate that represents our incremental borrowing rate at the lease commencement date. ROU assets are further adjusted for lease incentives. Operating lease expense, which is comprised of amortization of the ROU asset and the implicit interest accreted on the operating lease liability, is recognized on a straight-line basis over the lease term, and is recorded net in occupancy expense in the consolidated statements of income. Our leases relate primarily to office space and bank branches with remaining lease terms of generally 1 to 10 years. Certain lease arrangements contain extension options which typically range from 5 to 10 years at the then fair market rental rates. ASC 842 requires lessees to evaluate whether option periods, if available, will be exercised in order to determine the full life of the lease. The Company used the first option period, unless it is a relatively new lease that has a long initial lease term or other extenuating circumstances. As of December 31, 2019, operating lease ROU assets and liabilities were $4.98 million and $5.03 million, respectively. Operating lease expenses that were in scope of ASU 2016-02 totaled $836,000 for the year ended December 31, 2019. The table below summarizes the information related to our operating leases: (in thousands except for percent and period data) Year Ended December 31, 2019 Cash Paid for Amounts Included in the Measurement of Lease Liabilities Operating Cash Flow from Operating Leases $ 783 Right-of-Use Assets Obtained in Exchange for New Operating Lease Liabilities $ 5,645 Weighted-Average Remaining Lease Term - Operating Leases, in Years 7.88 Weighted-Average Discount Rate - Operating Leases 3.2 % The table below summarizes the maturity of remaining lease liability: (in thousands) December 31, 2019 2020 795 2021 719 2022 686 2023 697 2024 707 2025 and thereafter 2,105 Total Lease Payments 5,709 Less: Interest (679 ) Present Value of Lease Liabilities $ 5,030 As of December 31, 2019, we have no additional operating leases for office space that have not yet commenced or that are anticipated to commence during the first quarter of 2020. Lessor - Direct Financing Leases The Company is the lessor in direct finance lease arrangements. Leases are recorded at the principal balance outstanding, net of unearned income and charge-offs. Interest income is recognized using the interest method. Leases typically have a maturity of three to ten years, and fixed rates that are most often tied to treasury indices with an appropriate spread based on the amount of perceived risk. Credit risks are underwritten using the same credit criteria the Company would use when making an equipment term loan. Residual value risk is managed through the use of qualified, independent appraisers that establish the residual values the Company uses in structuring a lease. The impact of adopting Topic 842 for lessor accounting was not significant. Lease payments due to the Company are typically fixed and paid in equal installments over the lease term. Variable lease payments that do not depend on an index or a rate (e.g., property taxes) that are paid directly by the Company are minimal. The majority of property taxes are paid directly by the client to a third party and are not considered part of variable payments and therefore are not recorded by the Company. As a lessor, the Company leases certain types of agriculture equipment, solar equipment, construction equipment and other equipment to its customers. The Company’s net investment in direct financing leases was $105.4 million at December 31, 2019 and $107.3 million at December 31, 2018.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	12 Months Ended
	Dec. 31, 2019
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements	20. Recent Accounting Pronouncements Recently Adopted Accounting Guidance The following paragraphs provide descriptions of recently adopted accounting standards that may have had a material effect on the Company’s financial position or results of operations. The FASB issued guidance in February 2016, with amendments in 2018 and 2019, which changed the accounting for leases. The guidance requires lessees to recognize right-of-use (ROU) assets and lease liabilities for most leases where we are the lessee in the Consolidated Statement of Financial Position. The guidance also made some changes to lessor accounting, including the elimination of the use of third-party residual value guarantee insurance in the lease classification test, and overall aligns with the new revenue recognition guidance. The guidance also requires qualitative and quantitative disclosures to assess the amount, timing and uncertainty of cash flows arising from leases. Leases (Topic 842) The Company elected the option not to separate lease and non-lease components and instead to account for them as a single lease component and the hindsight practical expedient, which allows entities to use hindsight when determining lease term and impairment of right-of-use assets. The Company has several lease agreements, such as branch locations, which are considered operating leases, and therefore, were not previously recognized on the Company’s consolidated statements of condition. The new guidance requires these lease agreements to be recognized as a right-of-use asset and corresponding lease liability. Our operating leases relate primarily to office space and bank branches. As a result of implementing ASU 2016-02, we recognized an operating lease right-of-use (“ROU”) asset of $4.73 million and an operating lease liability of $4.73 million on January 1, 2019, with no impact on our consolidated statement of income or consolidated statement of cash flows compared to the prior lease accounting model. The ROU asset and operating lease liability are recorded in other assets and other liabilities, respectively, in the consolidated balance sheets. See Note 19 – “Leases” for additional information. In January 2016, the FASB issued ASU 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. Accounting Guidance Pending Adoption at December 31, 2019 The following paragraphs provide descriptions of newly issued but not yet effective accounting standards that could have a material effect on the Company’s financial position or results of operations. In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The ASU will require the earlier recognition of credit losses on loans and other financial instruments based on an expected loss model, replacing the incurred loss model that is currently in use. Under the new guidance, an entity will measure all expected credit losses for financial instruments held at the reporting date based on historical experience, current conditions and reasonable and supportable forecasts. The expected loss model will apply to loans and leases, unfunded lending commitments, held-to-maturity debt securities and other debt instruments measured at amortized cost. The impairment model for available-for-sale debt securities will require the recognition of credit losses through a valuation allowance when fair value is less than amortized cost, regardless of whether the impairment is considered to be other-than-temporary. The new guidance is effective on January 1, 2020. During 2109 Model validation began in the third quarter, enabling us to complete a parallel run using second, third and fourth quarter 2019 data.

Parent Company Financial Inform

Parent Company Financial Information	12 Months Ended
	Dec. 31, 2019
Parent Company Financial Information [Abstract]
Parent Company Financial Information	21. Parent Company Financial Information The following financial information is presented as of December 31 for the periods indicated. Farmers & Merchants Bancorp Condensed Balance Sheets (in thousands) 2019 2018 Cash $ 1,341 $ 335 Investment in Farmers & Merchants Bank of Central California 378,271 321,134 Investment Securities 411 409 Other Assets 102 (57 ) Total Assets $ 380,125 $ 321,821 Subordinated Debentures $ 10,310 $ 10,310 Liabilities 519 296 Shareholders’ Equity 369,296 311,215 Total Liabilities and Shareholders’ Equity $ 380,125 $ 321,821 Farmers & Merchants Bancorp Condensed Statements of Income Year Ended December 31, (in thousands) 2019 2018 2017 Equity (Loss) in Undistributed Earnings in Farmers & Merchants Bank of Central California $ 44,571 $ (26,488 ) $ 5,575 Dividends from Subsidiary 13,166 73,010 23,575 Interest Income 17 16 13 Other Expenses, Net (2,416 ) (1,527 ) (1,552 ) Tax Benefit 698 516 759 Net Income $ 56,036 $ 45,527 $ 28,370 Farmers & Merchants Bancorp Condensed Statements of Cash Flows Year Ended December 31, (in thousands) 2019 2018 2017 Cash Flows from Operating Activities: Net Income $ 56,036 $ 45,527 $ 28,370 Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities: (Equity) Loss in Undistributed Net Earnings from Subsidiary (44,571 ) 26,488 (5,575 ) Net (Increase) in Other Assets (160 ) (125 ) (11,822 ) Net Increase (Decrease) in Liabilities 222 (942 ) 112 Net Cash Provided by Operating Activities 11,527 70,948 11,085 Investing Activities: Securities Sold or Matured - - 1 Payments for Business Acquisition - (28,642 ) - Payments for Investments in Subsidiaries (6,273 ) (10,503 ) (2,953 ) Net Cash Used by Investing Activities (6,273 ) (39,145 ) (2,952 ) Financing Activities: Stock Repurchased - (31,152 ) - Issuance of Common Stock 6,973 10,503 2,953 Cash Dividends (11,221 ) (11,151 ) (10,982 ) Net Cash Used by Financing Activities (4,248 ) (31,800 ) (8,029 ) Increase in Cash and Cash Equivalents 1,006 3 104 Cash and Cash Equivalents at Beginning of Year 335 332 228 Cash and Cash Equivalents at End of Year $ 1,341 $ 335 $ 332

Quarterly Unaudited Financial D

Quarterly Unaudited Financial Data	12 Months Ended
	Dec. 31, 2019
Quarterly Unaudited Financial Data [Abstract]
Quarterly Unaudited Financial Data	22. Quarterly Unaudited Financial Data The following tables set forth certain unaudited historical quarterly financial data for each of the eight consecutive quarters in 2019 and 2018. This information is derived from unaudited consolidated financial statements that include, in management’s opinion, all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation when read in conjunction with the consolidated financial statements and notes thereto included elsewhere in this Form 10-K. 2019 (in thousands except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Total Total Interest Income $ 37,173 $ 38,626 $ 38,810 $ 39,099 $ 153,708 Total Interest Expense 2,966 3,253 3,530 3,445 13,194 Net Interest Income 34,207 35,373 35,280 35,654 140,514 Provision for Credit Losses - 200 - - 200 Net Interest Income After Provision for Credit Losses 34,207 35,173 35,280 35,654 140,314 Total Non-Interest Income 4,464 4,400 3,974 4,403 17,241 Total Non-Interest Expense 20,445 20,565 20,856 20,376 82,242 Income Before Income Taxes 18,226 19,008 18,398 19,681 75,313 Provision for Income Taxes 4,677 4,903 4,660 5,037 19,277 Net Income $ 13,549 $ 14,105 $ 13,738 $ 14,644 $ 56,036 Basic Earnings Per Common Share $ 17.27 $ 17.92 $ 17.45 $ 18.54 $ 71.18 2018 (in thousands except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Total Total Interest Income $ 30,428 $ 32,161 $ 34,065 $ 36,799 $ 133,453 Total Interest Expense 1,522 1,660 2,157 2,611 7,950 Net Interest Income 28,906 30,501 31,908 34,188 125,503 Provision for Credit Losses 333 500 2,500 2,200 5,533 Net Interest Income After Provision for Credit Losses 28,573 30,001 29,408 31,988 119,970 Total Non-Interest Income 4,665 2,283 4,208 4,063 15,219 Total Non-Interest Expense 19,936 18,145 18,621 18,757 75,459 Income Before Income Taxes 13,302 14,139 14,995 17,294 59,730 Provision for Income Taxes 3,361 3,589 2,995 4,258 14,203 Net Income $ 9,941 $ 10,550 $ 12,000 $ 13,036 $ 45,527 Basic Earnings Per Common Share $ 12.24 $ 12.90 $ 15.12 $ 16.56 $ 56.82

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	23. Subsequent Events On January 10, 2020, the Company issued 523 shares of common stock to the Bank’s non-qualified deferred compensation retirement plans at a price of $770 per share based upon a valuation completed by a nationally recognized bank consulting and advisory firm and in reliance upon the exemption in Section 4(a)(2) of the Securities Act of 1933, as amended, and the regulations promulgated thereunder. The proceeds will be contributed to the Bank as equity capital.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
Significant Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements and notes thereto have been prepared in accordance with accounting principles generally accepted in the United States of America for financial information. The accompanying consolidated financial statements include the accounts of the Company and the Company’s wholly owned subsidiaries, F & M Bancorp, Inc. and the Bank, along with the Bank’s wholly owned subsidiaries, Farmers & Merchants Investment Corporation and Farmers/Merchants Corp. Significant inter-company transactions have been eliminated in consolidation. The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of 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 these estimates. Certain amounts in the prior years’ financial statements and related footnote disclosures have been reclassified to conform to the current-year presentation. These reclassifications had no effect on previously reported net income or total shareholders’ equity.
New Accounting Changes	New Accounting Changes The FASB issued guidance in February 2016, with amendments in 2018 and 2019, which changed the accounting for leases. The guidance requires lessees to recognize right-of-use (ROU) assets and lease liabilities for most leases where we are the lessee in the Consolidated Balance Sheets. The guidance also made some changes to lessor accounting, including the elimination of the use of third-party residual value guarantee insurance in the lease classification test, and overall aligns with the new revenue recognition guidance. The guidance also requires qualitative and quantitative disclosures to assess the amount, timing and uncertainty of cash flows arising from leases. Leases (Topic 842) The Company elected the option not to separate lease and non-lease components and instead to account for them as a single lease component and the hindsight practical expedient, which allows entities to use hindsight when determining lease term and impairment of right-of-use assets. The Company has several lease agreements, such as branch locations, which are considered operating leases, and therefore, were not previously recognized on the Company’s consolidated statements of condition. The new guidance requires these lease agreements to be recognized as a right-of-use asset and corresponding lease liability. Our operating leases relate primarily to office space and bank branches. As a result of implementing ASU 2016-02, we recognized an operating lease right-of-use (“ROU”) asset of $4.73 million and an operating lease liability of $4.73 million on January 1, 2019, with no impact on our consolidated statement of income or consolidated statement of cash flows compared to the prior lease accounting model. The ROU asset and operating lease liability are recorded in other assets and other liabilities, respectively, in the consolidated balance sheets. See Note 19 – “Leases” for additional information.
Out of Period Adjustment	Out of Period Adjustment During the quarter ended September 30, 2018, while preparing 2017 tax returns, the Company identified certain items related to IRS Code Section 162(m) that were not appropriately reflected in the 2014 through 2017 Provision for Income Taxes. To reflect this change, the cumulative impact of $990,000 was recognized by reducing the Company’s Provision for Income Taxes in the third quarter of 2018. After evaluating the quantitative and qualitative aspects of the adjustment, the Company concluded that its 2017 financial statements were not materially misstated and, therefore, no restatement was required.
Revenue from Contracts with Customers	Revenue from Contracts with Customers The Company records revenue from contracts with customers in accordance with Accounting Standards Codification Topic 606, “Revenue from Contracts with Customers” (“Topic 606”). Under Topic 606, the Company must identify the contract with a customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract, and recognize revenue when (or as) the Company satisfies a performance obligation. Significant revenue has not been recognized in the current reporting period that results from performance obligations satisfied in previous periods. The Company elected to use the modified retrospective transition method which requires application of ASU 2014-09 to uncompleted contracts at the date of adoption however, periods prior to the date of adoption will not be retrospectively revised, as the impact of the ASU on uncompleted contracts at the date of adoption was not material. The Company’s primary sources of revenue are derived from interest and dividends earned on loans, investment securities, and other financial instruments that are not within the scope of Topic 606. The Company has evaluated the nature of its contracts with customers and determined that further disaggregation of revenue from contracts with customers into more granular categories beyond what is presented in the Consolidated Statements of Income was not necessary. The Company generally fully satisfies its performance obligations on its contracts with customers as services are rendered and the transaction prices are typically fixed; charged either on a periodic basis or based on activity. Because performance obligations are satisfied as services are rendered and the transaction prices are fixed, there is limited judgment involved in applying Topic 606 that significantly affects the determination of the amount and timing of revenue from contracts with customers.
Cash and Cash Equivalents	Cash and Cash Equivalents For purposes of the Consolidated Statements of Cash Flows, the Company has defined cash and cash equivalents as those amounts included in the balance sheet captions Cash and Due from Banks, Interest Bearing Deposits with Banks and Federal Funds Sold, which have original maturity dates of 3 months or less. For these instruments, the carrying amount is a reasonable estimate of fair value.
Investment Securities	Investment Securities Investment securities are classified at the time of purchase as held-to-maturity (“HTM”) if it is management’s intent and the Company has the ability to hold the securities until maturity. These securities are carried at cost, adjusted for amortization of premium and accretion of discount using a level yield of interest over the estimated remaining period until maturity. Losses, reflecting a decline in value judged by the Company to be other than temporary, are recognized in the period in which they occur. Securities are classified as available-for-sale (“AFS”) if it is management’s intent, at the time of purchase, to hold the securities for an indefinite period of time and/or to use the securities as part of the Company’s asset/liability management strategy. These securities are reported at fair value with aggregate unrealized gains or losses excluded from income and included as a separate component of shareholders’ equity, net of related income taxes. Fair values are based on quoted market prices or broker/dealer price quotations on a specific identification basis. Gains or losses on the sale of these securities are computed using the specific identification method. Trading securities, if any, are acquired for short-term appreciation and are recorded in a trading portfolio and are carried at fair value, with unrealized gains and losses recorded in non-interest income. Management evaluates securities for other-than-temporary impairment (“OTTI”) on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. For securities in an unrealized loss position, management considers the extent and duration of the unrealized loss, and the financial condition and near-term prospects of the issuer. Management also assesses whether it intends to sell, or it is more likely than not that it will be required to sell, a security in an unrealized loss position before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the entire difference between amortized cost and fair value is recognized as impairment through earnings. For debt securities that do not meet the aforementioned criteria, the amount of impairment is split into two components as follows: (1) OTTI related to credit loss, which must be recognized in the income statement; and (2) OTTI related to other factors, which is recognized in other comprehensive income. The credit loss is defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis. For equity securities, the entire amount of a market adjustment is recognized through earnings.
Loans & Leases	Loans & Leases Loans & leases are reported at the principal amount outstanding net of unearned discounts and deferred loan & lease fees and costs. Interest income on loans & leases is accrued daily on the outstanding balances using the simple interest method. Loan & lease origination fees are deferred and recognized over the contractual life of the loan or lease as an adjustment to the yield. Loans & leases are placed on non-accrual status when the collection of principal or interest is in doubt or when they become past due for 90 days or more unless they are both well-secured and in the process of collection. For this purpose, a loan or lease is considered well-secured if it is collateralized by property having a net realizable value in excess of the amount of the loan or lease or is guaranteed by a financially capable party. When a loan or lease is placed on non-accrual status, the accrued and unpaid interest receivable is reversed and charged against current income; thereafter, interest income is recognized only as it is collected in cash. Additionally, cash would be applied to principal if all principal was not expected to be collected. Loans & leases placed on non-accrual status are returned to accrual status when the loans or leases are paid current as to principal and interest and future payments are expected to be made in accordance with the contractual terms of the loan or lease. A loan or lease is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due, including principal and interest, according to the contractual terms of the original agreement. Impaired loans & leases are either: (1) non-accrual loans & leases; or (2) restructured loans & leases that are still accruing interest. Loans or leases determined to be impaired are individually evaluated for impairment. When a loan or lease is impaired, the Company measures impairment based on the present value of expected future cash flows discounted at the loan or lease’s effective interest rate, except that as a practical expedient, it may measure impairment based on a loan or lease’s observable market price, or the fair value of the collateral if the loan or lease is collateral dependent. A loan or lease is collateral dependent if the repayment of the loan or lease is expected to be provided solely by the underlying collateral. A restructuring of a loan or lease constitutes a troubled debt restructuring (TDR) if the Company for economic or legal reasons related to the borrower’s (the term “borrower” is used herein to describe a customer who has entered into either a loan or lease transaction) financial difficulties grants a concession to the borrower that it would not otherwise consider. Restructured loans & leases typically present an elevated level of credit risk as the borrowers are not able to perform according to the original contractual terms. If the restructured loan or lease was current on all payments at the time of restructure and management reasonably expects the borrower will continue to perform after the restructure, management may keep the loan or lease on accrual. Loans & leases that are on nonaccrual status at the time they become TDR, remain on nonaccrual status until the borrower demonstrates a sustained period of performance, which the Company generally believes to be six consecutive months of payments, or equivalent. A loan or lease can be removed from TDR status if it was restructured at a market rate in a prior calendar year and is currently in compliance with its modified terms. However, these loans or leases continue to be classified as impaired and are individually evaluated for impairment as described above. Generally, the Company will not restructure loans or leases for borrowers unless: (1) the existing loan or lease is brought current as to principal and interest payments; and (2) the restructured loan or lease can be underwritten to reasonable underwriting standards. If these standards are not met other actions will be pursued (e.g., foreclosure) to collect outstanding loan or lease amounts. After restructure, a determination is made whether the loan or lease will be kept on accrual status based upon the underwriting and historical performance of the restructured credit.
Allowance for Credit Losses	Allowance for Credit Losses The allowance for credit losses is an estimate of probable incurred credit losses inherent in the Company’s loan & lease portfolio as of the balance sheet date. The allowance is established through a provision for credit losses, which is charged to expense. Additions to the allowance are expected to maintain the adequacy of the total allowance after credit losses and loan & lease growth. Credit exposures determined to be uncollectible are charged against the allowance. Cash received on previously charged off amounts is recorded as a recovery to the allowance. The overall allowance consists of three primary components: specific reserves related to impaired loans & leases; general reserves for inherent losses related to loans & leases that are not impaired; and an unallocated component that takes into account the imprecision in estimating and allocating allowance balances associated with macro factors. The determination of the general reserve for loans & leases that are collectively evaluated for impairment is based on estimates made by management, to include, but not limited to, consideration of historical losses by portfolio segment, internal asset classifications, qualitative factors that include economic trends in the Company’s service areas, industry experience and trends, geographic concentrations, estimated collateral values, the Company’s underwriting policies, the character of the loan & lease portfolio, and probable losses inherent in the portfolio taken as a whole. The Company maintains a separate allowance for each portfolio segment (loan & lease type). These portfolio segments include: (1) commercial real estate; (2) agricultural real estate; (3) real estate construction (including land and development loans); (4) residential 1 st The Company assigns a risk rating to all loans & leases and periodically performs detailed reviews of all such loans & leases over a certain threshold to identify credit risks and assess overall collectability. For smaller balance loans & leases, such as consumer and residential real estate, a credit grade is established at inception, and then updated only when the loan or lease becomes contractually delinquent or when the borrower requests a modification. For larger balance loans, management monitors and analyzes the financial condition of borrowers and guarantors, trends in the industries in which borrowers operate and the fair values of collateral securing these loans & leases. These credit quality indicators are used to assign a risk rating to each individual loan or lease. These risk ratings are also subject to examination by independent specialists engaged by the Company. The risk ratings can be grouped into five major categories, defined as follows: Pass – A pass loan or lease is a strong credit with no existing or known potential weaknesses deserving of management’s close attention. Special Mention – A special mention loan or lease has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or lease or in the Company’s credit position at some future date. Special mention loans & leases are not adversely classified and do not expose the Company to sufficient risk to warrant adverse classification. Substandard – A substandard loan or lease is not adequately protected by the current financial condition and paying capacity of the borrower or the value of the collateral pledged, if any. Loans or leases classified as substandard have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. Well-defined weaknesses include a project’s lack of marketability, inadequate cash flow or collateral support, failure to complete construction on time or the project’s failure to fulfill economic expectations. Doubtful – Loss – Loans or leases classified as loss are considered uncollectible. Once a loan or lease becomes delinquent and repayment becomes questionable, the Company will address collateral shortfalls with the borrower and attempt to obtain additional collateral. If this is not forthcoming and payment in full is unlikely, the Company will estimate its probable loss and immediately charge-off some or all of the balance. The general reserve component of the allowance for credit losses also consists of reserve factors that are based on management’s assessment of the following for each portfolio segment: (1) inherent credit risk; (2) historical losses; and (3) other qualitative factors. These reserve factors are inherently subjective and are driven by the repayment risk associated with each portfolio segment described below: Commercial Real Estate – Commercial real estate mortgage loans are generally considered to possess a higher inherent risk of loss than the Company’s commercial, agricultural and consumer loan types. Adverse economic developments or an overbuilt market impact commercial real estate projects and may result in troubled loans. Trends in vacancy rates of commercial properties impact the credit quality of these loans. High vacancy rates reduce operating revenues and the ability for properties to produce sufficient cash flow to service debt obligations. Real Estate Construction – Real estate construction loans, including land loans, are generally considered to possess a higher inherent risk of loss than the Company’s commercial, agricultural and consumer loan types. A major risk arises from the necessity to complete projects within specified cost and time lines. Trends in the construction industry significantly impact the credit quality of these loans, as demand drives construction activity. In addition, trends in real estate values significantly impact the credit quality of these loans, as property values determine the economic viability of construction projects. Commercial – These loans are generally considered to possess a moderate inherent risk of loss because they are shorter-term; typically made to relationship customers; generally underwritten to existing cash flows of operating businesses; and may be collateralized by fixed assets, inventory and/or accounts receivable. Debt coverage is provided by business cash flows and economic trends influenced by unemployment rates and other key economic indicators are closely correlated to the credit quality of these loans. Agricultural Real Estate and Agricultural – These loans are generally considered to possess a moderate inherent risk of loss since they are typically made to relationship customers and are secured by crop production, livestock and related real estate. These loans are vulnerable to two risk factors that are largely outside the control of Company and borrowers: commodity prices and weather conditions. Leases – Equipment leases are generally considered to possess a moderate inherent risk of loss. As lessor, the Company is subject to both the credit risk of the borrower and the residual value risk of the equipment. Credit risks are underwritten using the same credit criteria the Company would use when making an equipment term loan. Residual value risk is managed through the use of qualified, independent appraisers that establish the residual values the Company uses in structuring a lease. Residential 1st Mortgages and Home Equity Lines and Loans – These loans are generally considered to possess a lower inherent risk of loss. The degree of risk in residential real estate lending depends primarily on the loan amount in relation to collateral value, the interest rate and the borrower’s ability to repay in an orderly fashion. Economic trends determined by unemployment rates and other key economic indicators are closely correlated to the credit quality of these loans. Weak economic trends indicate that the borrowers’ capacity to repay their obligations may be deteriorating. Consumer & Other – A consumer installment loan portfolio is usually comprised of a large number of small loans scheduled to be amortized over a specific period. Most installment loans are made for consumer purchases. Economic trends determined by unemployment rates and other key economic indicators are closely correlated to the credit quality of these loans. Weak economic trends indicate that the borrowers’ capacity to repay their obligations may be deteriorating. At least quarterly, the Board of Directors reviews the adequacy of the allowance, including consideration of the relative risks in the portfolio, current economic conditions and other factors. If the Board of Directors and management determine that changes are warranted based on those reviews, the allowance is adjusted. In addition, the Company’s and Bank’s regulators, including the Federal Reserve Board (“FRB”), the California Department of Business Oversight (“DBO”) and the Federal Deposit Insurance Corporation (“FDIC”), as an integral part of their examination process, review the adequacy of the allowance. These regulatory agencies may require additions to the allowance based on their judgment about information available at the time of their examinations.
Acquired Loans	Acquired Loans Loans acquired through purchase or through a business combination are recorded at their fair value at the acquisition date. Credit discounts, which reflect estimates of credit losses, expected to be incurred over the life of the loan, are included in the determination of fair value; therefore, an allowance for loan losses is not recorded at the acquisition date.
Allowance for Credit Losses on Off-Balance-Sheet Credit Exposures	Allowance for Credit Losses on Off-Balance-Sheet Credit Exposures The Company also maintains a separate allowance for off-balance-sheet commitments. Management estimates anticipated losses using historical data and utilization assumptions. The allowance for off-balance-sheet commitments is included in Interest Payable and Other Liabilities on the Company’s Consolidated Balance Sheet.
Premises and Equipment	Premises and Equipment Premises, equipment, and leasehold improvements are stated at cost, less accumulated depreciation and amortization. Depreciation is computed principally by the straight-line method over the estimated useful lives of the assets. Estimated useful lives of buildings range from 30 to 40 years, and for furniture and equipment from 3 to 7 years. Leasehold improvements are amortized over the lesser of the terms of the respective leases, or their useful lives, which are generally 5 to 10 years. Remodeling and capital improvements are capitalized while maintenance and repairs are charged directly to occupancy expense.
Other Real Estate	Other Real Estate Other real estate, which is included in other assets, is expected to be sold and is comprised of properties no longer utilized for business operations and property acquired through foreclosure in satisfaction of indebtedness. These properties are recorded at fair value less estimated selling costs upon acquisition. Revised estimates to the fair value less cost to sell are reported as adjustments to the carrying amount of the asset, provided that such adjusted value is not in excess of the carrying amount at acquisition. Initial losses on properties acquired through full or partial satisfaction of debt are treated as credit losses and charged to the allowance for credit losses at the time of acquisition. Subsequent declines in value from the recorded amounts, routine holding costs, and gains or losses upon disposition, if any, are included in non-interest expense as incurred.
Income Taxes	Income Taxes The Company uses the liability method of accounting for income taxes. This method results in the recognition of deferred tax assets and liabilities that are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. The deferred provision for income taxes is the result of the net change in the deferred tax asset and deferred tax liability balances during the year. This amount combined with the current taxes payable or refundable results in the income tax expense for the current year. The Company follows the standards set forth in the “Income Taxes” topic of the Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”), which clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements. This standard prescribes a recognition threshold and measurement standard for the financial statement recognition and measurement of an income tax position taken or expected to be taken in a tax return. It also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure, and transition. The Company accounts for leases with Investment Tax Credits (ITC) under the deferred method as established in ASC 740-10. ITC are viewed and accounted for as a reduction of the cost of the related assets and presented as deferred income on the Company’s financial statement. The Company accounts for its interest in LIHTC using the cost method as established in ASC 323-740. As an investor, the Company obtains income tax credits and deductions from the operating losses of these tax credit entities. The income tax credits and deductions are allocated to the investors based on their ownership percentages and are recorded as a reduction of income tax expense (or an increase to income tax benefit) and a reduction of federal income taxes payable. When tax returns are filed, it is highly certain that some positions taken would be sustained upon examination by the taxing authorities, while others are subject to uncertainty about the merits of the position taken or the amount of the position that would be ultimately sustained. The benefit of a tax position is recognized in the financial statements in the period during which, based on all available evidence, management believes it is more likely than not that the position will be sustained upon examination, including the resolution of appeals or litigation processes, if any. Tax positions taken are not offset or aggregated with other positions. Tax positions that meet the more-likely-than-not recognition threshold are measured as the largest amount of tax benefit that is more than 50 percent likely of being realized upon settlement with the applicable taxing authority. The portion of the benefits associated with tax positions taken that exceeds the amount measured as described above is reflected as a liability for unrecognized tax benefits in the accompanying consolidated balance sheet along with any associated interest and penalties that would be payable to the taxing authorities upon examination. At December 31, 2019 and 2018, the Company has no material uncertain tax positions and recognized no interest or penalties. The Company’s policy is to recognize interest and penalties related to income taxes in the provision for income taxes in the Consolidated Statement of Income.
Basic and Diluted Earnings Per Common Share	Basic and Diluted Earnings Per Common Share The Company’s common stock is not traded on any exchange. However, trades are reported on the OTCQX under the symbol “FMCB”. The shares are primarily held by local residents and are not actively traded. Basic earnings per common share amounts are computed by dividing net income by the weighted average number of common shares outstanding for the period. There are no common stock equivalent shares. Therefore, there is no presentation of diluted basic earnings per common share. See Note 14 - “Dividends and Basic Earnings Per Common Share” for additional information.
Segment Reporting	Segment Reporting The “Segment Reporting” topic of the FASB ASC requires that public companies report certain information about operating segments. It also requires that public companies report certain information about their products and services, the geographic areas in which they operate, and their major customers. The Company is a holding company for a community bank, which offers a wide array of products and services to its customers. Pursuant to its banking strategy, emphasis is placed on building relationships with its customers, as opposed to building specific lines of business. As a result, the Company is not organized around discernible lines of business and prefers to work as an integrated unit to customize solutions for its customers, with business line emphasis and product offerings changing over time as needs and demands change.
Comprehensive Income	Comprehensive Income The “Comprehensive Income” topic of the FASB ASC establishes standards for the reporting and display of comprehensive income and its components in the financial statements. Other comprehensive income refers to revenues, expenses, gains, and losses that U.S. GAAP recognize as changes in value to an enterprise but are excluded from net income. For the Company, comprehensive income includes net income and changes in fair value of its available-for-sale investment securities.
Loss Contingencies	Loss Contingencies Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated. Management does not believe there now are such matters that will have a material effect on the financial statements.
Business Combinations and Related Matters	Business Combinations And Related Matters Business combinations are accounted for under the acquisition method of accounting in accordance with ASC 805, Business Combinations. Under the acquisition method, the acquiring entity in a business combination recognizes 100 percent of the acquired assets and assumed liabilities, regardless of the percentage owned, at their estimated fair values as of the date of acquisition. Any excess of the fair value over the purchase price of net assets and other identifiable intangible assets acquired is recorded as bargain purchase gain. Assets acquired and liabilities assumed from contingencies must also be recognized at fair value, if the fair value can be determined during the measurement period. Results of operations of an acquired business are included in the statement of operations from the date of acquisition. Acquisition-related costs, including conversion charges, are expensed as incurred.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets (in thousands) 2020 2021 2022 2023 2024 Thereafter Total Core Deposit Intangible Amortization $ 626 $ 611 $ 593 $ 573 $ 549 $ 1,688 $ 4,640 We make a qualitative assessment of whether it is more likely than not that the fair value of a reporting unit where goodwill is assigned is less than its carrying amount. If we conclude that it is more likely than not that the fair value is more than its carrying amount, no impairment is recorded. Goodwill is tested for impairment on an interim basis if circumstances change or an event occurs between annual tests that would more likely than not reduce the fair value of the reporting unit below its carrying amount. The qualitative assessment includes adverse events or circumstances identified that could negatively affect the reporting units’ fair value as well as positive and mitigating events. Such indicators may include, among others, a significant change in legal factors or in the general business climate, significant change in our stock price and market capitalization, unanticipated competition, and an action or assessment by a regulator. If the fair value of a reporting unit is less than its carrying amount, an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value is recognized. The loss recognized should not exceed the total amount of goodwill allocated to that reporting unit.

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Policies)	12 Months Ended
	Dec. 31, 2019
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements	Recently Adopted Accounting Guidance The following paragraphs provide descriptions of recently adopted accounting standards that may have had a material effect on the Company’s financial position or results of operations. The FASB issued guidance in February 2016, with amendments in 2018 and 2019, which changed the accounting for leases. The guidance requires lessees to recognize right-of-use (ROU) assets and lease liabilities for most leases where we are the lessee in the Consolidated Statement of Financial Position. The guidance also made some changes to lessor accounting, including the elimination of the use of third-party residual value guarantee insurance in the lease classification test, and overall aligns with the new revenue recognition guidance. The guidance also requires qualitative and quantitative disclosures to assess the amount, timing and uncertainty of cash flows arising from leases. Leases (Topic 842) The Company elected the option not to separate lease and non-lease components and instead to account for them as a single lease component and the hindsight practical expedient, which allows entities to use hindsight when determining lease term and impairment of right-of-use assets. The Company has several lease agreements, such as branch locations, which are considered operating leases, and therefore, were not previously recognized on the Company’s consolidated statements of condition. The new guidance requires these lease agreements to be recognized as a right-of-use asset and corresponding lease liability. Our operating leases relate primarily to office space and bank branches. As a result of implementing ASU 2016-02, we recognized an operating lease right-of-use (“ROU”) asset of $4.73 million and an operating lease liability of $4.73 million on January 1, 2019, with no impact on our consolidated statement of income or consolidated statement of cash flows compared to the prior lease accounting model. The ROU asset and operating lease liability are recorded in other assets and other liabilities, respectively, in the consolidated balance sheets. See Note 19 – “Leases” for additional information. In January 2016, the FASB issued ASU 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. Accounting Guidance Pending Adoption at December 31, 2019 The following paragraphs provide descriptions of newly issued but not yet effective accounting standards that could have a material effect on the Company’s financial position or results of operations. In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The ASU will require the earlier recognition of credit losses on loans and other financial instruments based on an expected loss model, replacing the incurred loss model that is currently in use. Under the new guidance, an entity will measure all expected credit losses for financial instruments held at the reporting date based on historical experience, current conditions and reasonable and supportable forecasts. The expected loss model will apply to loans and leases, unfunded lending commitments, held-to-maturity debt securities and other debt instruments measured at amortized cost. The impairment model for available-for-sale debt securities will require the recognition of credit losses through a valuation allowance when fair value is less than amortized cost, regardless of whether the impairment is considered to be other-than-temporary. The new guidance is effective on January 1, 2020. During 2109 Model validation began in the third quarter, enabling us to complete a parallel run using second, third and fourth quarter 2019 data.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Significant Accounting Policies [Abstract]
Future Estimated Amortization Expense for CDI	At December 31, 2019, the future estimated amortization expense for the CDI arising from our past acquisitions is as follows: (in thousands) 2020 2021 2022 2023 2024 Thereafter Total Core Deposit Intangible Amortization $ 626 $ 611 $ 593 $ 573 $ 549 $ 1,688 $ 4,640

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2019
Investment Securities [Abstract]
Amortized Cost, Fair Values, and Unrealized Gains and Losses of Securities Available-For-Sale	The amortized cost, fair values, and unrealized gains and losses of the securities available-for-sale (in thousands) Amortized Gross Unrealized Fair/Book December 31, 2019 Cost Gains Losses Value US Treasury Notes $ 54,745 $ 250 $ - $ 54,995 US Govt SBA 10,902 9 113 10,798 Mortgage Backed Securities (1) 436,531 4,646 99 441,078 Other 515 - - 515 Total $ 502,693 $ 4,905 $ 212 $ 507,386 Amortized Gross Unrealized Fair/Book December 31, 2018 Cost Gains Losses Value Government Agency & Government-Sponsored Entities $ 3,033 $ 6 $ - $ 3,039 US Treasury Notes 164,672 - 158 164,514 US Govt SBA 15,601 6 160 15,447 Mortgage Backed Securities (1) 310,982 1,196 5,133 307,045 Other 5,351 - - 5,351 Total $ 499,639 $ 1,208 $ 5,451 $ 495,396 (1)
Book Values, Estimated Fair Values and Unrealized Gains and Losses of Investments Classified as Held-To-Maturity	The book values, estimated fair values and unrealized gains and losses of investments classified as held-to-maturity (in thousands) Book Gross Unrealized Fair December 31, 2019 Value Gains Losses Value Obligations of States and Political Subdivisions $ 60,229 $ 880 $ 12 $ 61,097 Total $ 60,229 $ 880 $ 12 $ 61,097 Book Gross Unrealized Fair December 31, 2018 Value Gains Losses Value Obligations of States and Political Subdivisions $ 53,566 $ 211 $ 39 $ 53,738 Total $ 53,566 $ 211 $ 39 $ 53,738
Amortized Cost and Estimated Fair Values of Investment Securities by Contractual Maturity	The amortized cost and estimated fair values of investment securities at December 31, 2019 by contractual maturity are shown in the following tables. (in thousands) Available-for-Sale Held-to-Maturity December 31, 2019 Amortized Cost Fair/Book Value Book Value Fair Value Within One Year $ 40,509 $ 40,510 $ 2,446 $ 2,446 After One Year Through Five Years 15,146 15,393 5,902 5,905 After Five Years Through Ten Years 955 955 23,980 24,689 After Ten Years 9,552 9,450 27,901 28,057 66,162 66,308 60,229 61,097 Investment Securities Not Due at a Single Maturity Date: Mortgage Backed Securities 436,531 441,078 - - Total $ 502,693 $ 507,386 $ 60,229 $ 61,097
Investments with Gross Unrealized Losses and Market Value Aggregated by Investment Category and Length of Time That Individual Securities Have Been In a Continuous Unrealized Loss Position	The following tables show those investments with gross unrealized losses and their market value aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at the dates indicated. (in thousands) Less Than 12 Months 12 Months or More Total December 31, 2019 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Securities Available-for-Sale US Govt SBA $ 2,693 $ 6 $ 5,198 $ 107 $ 7,891 $ 113 Mortgage Backed Securities 131,005 88 713 11 131,718 99 Total $ 133,698 $ 94 $ 5,911 $ 118 $ 139,609 $ 212 Securities Held-to-Maturity Obligations of States and Political Subdivisions $ 355 $ 12 $ - $ - $ 355 $ 12 Total $ 355 $ 12 $ - $ - $ 355 $ 12 Less Than 12 Months 12 Months or More Total December 31, 2018 Fair Unrealized Fair Unrealized Fair Unrealized Securities Available-for-Sale US Treasury Notes $ 124,985 $ 7 $ 39,529 $ 151 $ 164,514 $ 158 US Govt SBA 3,250 28 8,618 132 11,868 160 Mortgage Backed Securities 52,289 528 207,271 4,605 259,560 5,133 Total $ 180,524 $ 563 $ 255,418 $ 4,888 $ 435,942 $ 5,451 Securities Held-to-Maturity Obligations of States and Political Subdivisions $ 6,052 $ 23 $ 849 $ 16 $ 6,901 $ 39 Total $ 6,052 $ 23 $ 849 $ 16 $ 6,901 $ 39
Proceeds from Sales and Calls of Securities	Proceeds from sales and calls of these securities were as follows: (in thousands) Gross Proceeds Gross Gains Gross Losses 2019 $ 5,300 $ 1 $ - 2018 $ 99,323 $ 78 $ 1,338 2017 $ 7,831 $ 143 $ 12

Loans & Leases (Tables)

Loans & Leases (Tables)	12 Months Ended
	Dec. 31, 2019
Loans & Leases [Abstract]
Loans and Leases	Loans & leases as of December 31 consisted of the following: (in thousands) 2019 2018 Commercial Real Estate $ 846,486 $ 834,476 Agricultural Real Estate 625,767 584,625 Real Estate Construction 115,644 98,568 Residential 1st Mortgages 255,253 259,736 Home Equity Lines and Loans 39,270 40,789 Agricultural 292,904 290,463 Commercial 384,795 343,834 Consumer & Other 15,422 19,412 Leases 104,470 106,217 Total Gross Loans & Leases 2,680,011 2,578,120 Less: Unearned Income 6,984 6,879 Subtotal 2,673,027 2,571,241 Less: Allowance for Credit Losses 55,012 55,266 Loans & Leases, Net $ 2,618,015 $ 2,515,975

Allowance for Credit Losses (Ta

Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2019
Allowance for Credit Losses [Abstract]
Allocation of Allowance for Credit Losses by Portfolio Segment and by Impairment Methodology	The following tables show the allocation of the allowance for credit losses at December 31, 2019 and December 31, 2018 by portfolio segment and by impairment methodology (in thousands) December 31, 2019 Commercial Real Estate Agricultural Real Estate Real Estate Construction Residential 1st Mortgages Home Equity Lines & Loans Agricultural Commercial Consumer & Other Leases Unallocated Total Year-To-Date Allowance for Credit Losses: Beginning Balance- January 1, 2019 $ 11,609 $ 14,092 $ 1,249 $ 880 $ 2,761 $ 8,242 $ 11,656 $ 494 $ 4,022 $ 261 $ 55,266 Charge-Offs - - - - - - (592 ) (83 ) - - (675 ) Recoveries - 38 - 13 28 - 90 52 - - 221 Provision (556 ) 998 700 (38 ) (114 ) (166 ) 312 (7 ) (860 ) (69 ) 200 Ending Balance- December 31, 2019 $ 11,053 $ 15,128 $ 1,949 $ 855 $ 2,675 $ 8,076 $ 11,466 $ 456 $ 3,162 $ 192 $ 55,012 Ending Balance Individually Evaluated for Impairment 234 - - 118 12 99 137 61 - - 661 Ending Balance Collectively Evaluated for Impairment 10,819 15,128 1,949 737 2,663 7,977 11,329 395 3,162 192 54,351 Loans & Leases: Ending Balance $ 838,570 $ 625,767 $ 115,644 $ 255,253 $ 39,270 $ 292,904 $ 384,795 $ 15,422 $ 105,402 $ - $ 2,673,027 Ending Balance Individually Evaluated for Impairment 4,524 5,654 - 2,368 229 188 1,528 200 - - 14,691 Ending Balance Collectively Evaluated for Impairment 834,046 620,113 115,644 252,885 39,041 292,716 383,267 15,222 105,402 - 2,658,336 December 31, 2018 Commercial Real Estate Agricultural Real Estate Real Estate Construction Residential 1st Mortgages Home Equity Lines & Loans Agricultural Commercial Consumer & Other Leases Unallocated Total Year-To-Date Allowance for Credit Losses: Beginning Balance- January 1, 2018 $ 10,922 $ 12,085 $ 1,846 $ 815 $ 2,324 $ 8,159 $ 9,197 $ 209 $ 3,363 $ 1,422 $ 50,342 Charge-Offs - - - (31 ) (8 ) - (613 ) (115 ) - - (767 ) Recoveries 2 - - 15 6 61 20 54 - - 158 Provision 685 2,007 (597 ) 81 439 22 3,052 346 659 (1,161 ) 5,533 Ending Balance- December 31, 2018 $ 11,609 $ 14,092 $ 1,249 $ 880 $ 2,761 $ 8,242 $ 11,656 $ 494 $ 4,022 $ 261 $ 55,266 Ending Balance Individually Evaluated for Impairment 234 - - 125 15 - 185 6 - - 565 Ending Balance Collectively Evaluated for Impairment 11,375 14,092 1,249 755 2,746 8,242 11,471 488 4,022 261 54,701 Loans & Leases: Ending Balance $ 826,549 $ 584,625 $ 98,568 $ 259,736 $ 40,789 $ 290,463 $ 343,834 $ 19,412 $ 107,265 $ - $ 2,571,241 Ending Balance Individually Evaluated for Impairment 4,676 7,238 - 2,491 297 - 1,639 6 - - 16,347 Ending Balance Collectively Evaluated for Impairment 821,873 577,387 98,568 257,245 40,492 290,463 342,195 19,406 107,265 - 2,554,894
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings	The following tables show the loan & lease portfolio allocated by management’s internal risk ratings at December 31, 2019 and December 31, 2018 (in thousands) December 31, 2019 Pass Special Mention Substandard Total Loans Loans & Leases: Commercial Real Estate $ 831,941 $ 6,629 $ - $ 838,570 Agricultural Real Estate 611,792 1,136 12,839 625,767 Real Estate Construction 115,644 - - 115,644 Residential 1st Mortgages 254,459 - 794 255,253 Home Equity Lines and Loans 39,092 - 178 39,270 Agricultural 289,276 2,617 1,011 292,904 Commercial 380,650 3,239 906 384,795 Consumer & Other 14,934 - 488 15,422 Leases 105,402 - - 105,402 Total $ 2,643,190 $ 13,621 $ 16,216 $ 2,673,027 December 31, 2018 Pass Special Mention Substandard Total Loans Loans & Leases: Commercial Real Estate $ 823,983 $ 2,566 $ - $ 826,549 Agricultural Real Estate 566,612 4,703 13,310 584,625 Real Estate Construction 98,568 - - 98,568 Residential 1st Mortgages 259,208 - 528 259,736 Home Equity Lines and Loans 40,744 - 45 40,789 Agricultural 284,561 5,433 469 290,463 Commercial 343,085 163 586 343,834 Consumer & Other 19,229 - 183 19,412 Leases 107,265 - - 107,265 Total $ 2,543,255 $ 12,865 $ 15,121 $ 2,571,241
Aging Analysis of Loan & Lease Portfolio by Time Past Due	The following tables show an aging analysis of the loan & lease portfolio by the time past due at December 31, 2019 and December 31, 2018 (in thousands) December 31, 2019 30-59 Days Past Due 60-89 Days Past Due 90 Days and Still Accruing Nonaccrual Total Past Due Current Total Loans & Leases Loans & Leases: Commercial Real Estate $ - $ - $ - $ - $ - $ 838,570 $ 838,570 Agricultural Real Estate - - - - - 625,767 625,767 Real Estate Construction 240 - - - 240 115,404 115,644 Residential 1st Mortgages - - - - - 255,253 255,253 Home Equity Lines and Loans - - - - - 39,270 39,270 Agricultural - - - - - 292,904 292,904 Commercial 77 - - - 77 384,718 384,795 Consumer & Other 35 - - - 35 15,387 15,422 Leases - - - - - 105,402 105,402 Total $ 352 $ - $ - $ - $ 352 $ 2,672,675 $ 2,673,027 December 31, 2018 30-59 Days Past Due 60-89 Days Past Due 90 Days and Still Accruing Nonaccrual Total Past Due Current Total Loans & Leases Loans & Leases: Commercial Real Estate $ - $ 731 $ - $ - $ 731 $ 825,818 $ 826,549 Agricultural Real Estate - - - - - 584,625 584,625 Real Estate Construction 327 - - - 327 98,241 98,568 Residential 1st Mortgages 367 - - - 367 259,369 259,736 Home Equity Lines and Loans - - - - - 40,789 40,789 Agricultural - - - - - 290,463 290,463 Commercial - - - - - 343,834 343,834 Consumer & Other 13 - - - 13 19,399 19,412 Leases - - - - - 107,265 107,265 Total $ 707 $ 731 $ - $ - $ 1,438 $ 2,569,803 $ 2,571,241
Impaired Loans & Leases	The following tables show information related to impaired loans & leases at and for the year ended December 31, 2019 and December 31, 2018 (in thousands) December 31, 2019 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial Real Estate $ 86 $ 86 $ - $ 90 $ 8 Agricultural Real Estate 5,654 5,654 - 6,069 379 Commercial - - - 8 1 $ 5,740 $ 5,740 $ - $ 6,167 $ 388 With an allowance recorded: Commercial Real Estate $ 2,822 $ 2,822 $ 234 $ 2,853 $ 94 Residential 1st Mortgages 1,562 1,770 74 1,601 73 Home Equity Lines and Loans 68 79 7 71 4 Agricultural 188 188 99 195 6 Commercial 1,528 1,528 137 1,554 53 Consumer & Other 200 200 61 54 - $ 6,368 $ 6,587 $ 612 $ 6,328 $ 230 Total $ 12,108 $ 12,327 $ 612 $ 12,495 $ 618 December 31, 2018 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial Real Estate $ 95 $ 96 $ - $ 99 $ 8 Agricultural Real Estate 7,239 7,238 - 3,620 119 Residential 1st Mortgages - - - 226 8 $ 7,334 $ 7,334 $ - $ 3,945 $ 135 With an allowance recorded: Commercial Real Estate $ 2,902 $ 2,892 $ 234 $ 2,929 $ 96 Residential 1st Mortgages 1,640 1,838 82 1,371 48 Home Equity Lines and Loans 74 84 4 76 4 Commercial 1,644 1,639 185 1,834 58 Consumer & Other 6 7 6 7 - $ 6,266 $ 6,460 $ 511 $ 6,217 $ 206 Total $ 13,600 $ 13,794 $ 511 $ 10,162 $ 341
Loans & Leases by Class Modified as Troubled Debt Restructured Loans	The following table presents loans by class modified as troubled debt restructured loans for the year ended December 31, 2019 (in thousands) December 31, 2019 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Agricultural 1 $ 201 $ 201 Consumer & Other 1 195 195 Total 2 $ 396 $ 396 The following table presents loans by class modified as troubled debt restructured loans for the year ended December 31, 2018 (in thousands) December 31, 2018 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Agricultural Real Estate 1 $ 7,239 $ 7,239 Residential 1st Mortgages 2 286 255 Total 3 $ 7,525 $ 7,494

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2019
Premises and Equipment [Abstract]
Premises and Equipment	Premises and equipment as of December 31 st (in thousands) 2019 2018 Land and Buildings $ 53,997 $ 39,329 Furniture, Fixtures and Equipment 21,058 21,136 Leasehold Improvement 3,745 3,606 Subtotal 78,800 64,071 Less: Accumulated Depreciation and Amortization 33,529 31,448 Total $ 45,271 $ 32,623

Time Deposits (Tables)

Time Deposits (Tables)	12 Months Ended
	Dec. 31, 2019
Time Deposits [Abstract]
Time Deposits of $250,000 or More	Time Deposits of $250,000 or more as of December 31 were as follows: (in thousands) 2019 2018 Balance $ 257,392 $ 219,022
Maturities of Time Deposits	At December 31, 2019, the scheduled maturities of time deposits were as follows: (in thousands) Scheduled Maturities 2020 $ 462,263 2021 46,150 2022 6,839 2023 1,676 2024 994 Total $ 517,922

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2019
Income Taxes [Abstract]
Current and Deferred Income Tax Expense (Benefit)	Current and deferred income tax expense (benefit) provided for the years ended December 31 consisted of the following: (in thousands) 2019 2018 2017 Current Federal $ 14,798 $ 2,517 $ 9,460 State 7,733 6,224 4,046 Total Current 22,531 8,741 13,506 Deferred Federal (3,500 ) 5,622 11,154 State 246 (160 ) 1,451 Total Deferred (3,254 ) 5,462 12,605 Total Provision for Taxes $ 19,277 $ 14,203 $ 26,111
Total Provision for Income Taxes Reconciliation with Federal Statutory Rate	The total provision for income taxes differs from the federal statutory rate as follows: 2019 2018 2017 (in thousands) Amount Rate Amount Rate Amount Rate Tax Provision at Federal Statutory Rate $ 15,816 21.0 % $ 12,543 21.0 % $ 19,068 35.0 % Interest on Obligations of States and Political Subdivisions exempt from Federal Taxation (358 ) (0.5 %) (338 ) (0.6 %) (617 ) (1.1 %) State and Local Income Taxes, Net of Federal Income Tax Benefit 6,304 8.4 % 4,791 7.9 % 3,573 6.5 % Bank Owned Life Insurance (460 ) (0.6 %) (434 ) (0.7 %) (696 ) (1.3 %) Low-Income Housing Tax Credit (2,078 ) (2.8 %) (1,624 ) (2.7 %) (1,546 ) (2.8 %) Out of Period Adjustment - 0.0 % (802 ) (1.3 %) - 0.0 % Deferred Tax Asset Remeasurement - 0.0 % - 0.0 % 6,256 11.5 % Other, Net 53 0.1 % 67 0.1 % 73 0.1 % Total Provision for Taxes $ 19,277 25.6 % $ 14,203 23.8 % $ 26,111 47.9 %
Components of Net Deferred Tax Assets	The components of net deferred tax assets as of December 31 are as follows: The net deferred tax assets are reported in Interest Receivable and Other Assets on the Company’s Consolidated Balance Sheet. (in thousands) 2019 2018 Deferred Tax Assets Allowance for Credit Losses $ 15,925 $ 15,877 Accrued Liabilities 8,452 7,444 Deferred Compensation 14,200 11,207 State Franchise Tax 1,624 1,307 Tax Credit Carry Forward 1,266 - Lease Liability 1,487 - Acquired Net Operating Loss 673 715 Fair Value Adjustment on Loans Acquired 286 300 Fair Value Adjustment on ORE Acquired 108 108 Unrealized Loss on Securities Available-for-Sale - 1,800 Low-Income Housing Investment 286 412 Other 2 7 Total Deferred Tax Assets $ 44,309 $ 39,177 Deferred Tax Liabilities Premises and Equipment (1,974 ) (2,226 ) Securities Accretion (370 ) (229 ) Unrealized Gain on Securities Available-for-Sale (935 ) - Leasing Activities (19,226 ) (17,215 ) Core Deposit Intangible Asset (1,372 ) (1,560 ) ROU Lease Asset (1,471 ) - Prepaid (66 ) (116 ) Other (898 ) (1,000 ) Total Deferred Tax Liabilities (26,312 ) (22,346 ) Net Deferred Tax Assets $ 17,997 $ 16,831

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2019
Shareholders' Equity [Abstract]
Compliance with Regulatory Capital Requirements under Banking Regulations	In addition, the most recent notification from the FDIC categorized the Bank as “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain minimum total risk-based, Tier 1 risk-based and Tier 1 leverage ratios as set forth in the following tables. There are no conditions or events since that notification that management believes have changed the Bank’s category. (in thousands) Actual Current Regulatory Capital Requirements Well Capitalized Under Prompt Corrective Action December 31, 2019 Amount Ratio Amount Ratio Amount Ratio Total Bank Capital to Risk Weighted Assets $ 399,230 12.33 % $ 259,012 8.00 % $ 323,765 10.00 % Total Consolidated Capital to Risk Weighted Assets $ 400,258 12.36 % $ 259,028 8.00 % N/A N/A Total Bank Common Equity Tier 1 Capital Ratio $ 358,576 11.08 % $ 145,694 4.50 % $ 210,447 6.50 % Total Consolidated Common Equity Tier 1 Capital Ratio $ 349,601 10.80 % $ 145,703 4.50 % N/A N/A Tier 1 Bank Capital to Risk Weighted Assets $ 358,576 11.08 % $ 194,259 6.00 % $ 259,012 8.00 % Tier 1 Consolidated Capital to Risk Weighted Assets $ 359,601 11.11 % $ 194,271 6.00 % N/A N/A Tier 1 Bank Capital to Average Assets $ 358,576 9.89 % $ 145,079 3.00 % $ 181,349 5.00 % Tier 1 Consolidated Capital to Average Assets $ 359,601 9.90 % $ 145,255 3.00 % N/A N/A (in thousands) Actual Current Regulatory Capital Requirements Well Capitalized Under Prompt Corrective Action December 31, 2018 Amount Ratio Amount Ratio Amount Ratio Total Bank Capital to Risk Weighted Assets $ 346,763 11.39 % $ 243,455 8.00 % $ 304,319 10.00 % Total Consolidated Capital to Risk Weighted Assets $ 346,845 11.40 % $ 243,459 8.00 % N/A N/A Total Bank Common Equity Tier 1 Capital Ratio $ 308,507 10.14 % $ 136,944 4.50 % $ 197,807 6.50 % Total Consolidated Common Equity Tier 1 Capital Ratio $ 298,588 9.81 % $ 136,945 4.50 % N/A N/A Tier 1 Bank Capital to Risk Weighted Assets $ 308,507 10.14 % $ 182,591 6.00 % $ 243,455 8.00 % Tier 1 Consolidated Capital to Risk Weighted Assets $ 308,588 10.14 % $ 182,594 6.00 % N/A N/A Tier 1 Bank Capital to Average Assets $ 308,507 9.15 % $ 134,822 3.00 % $ 168,527 5.00 % Tier 1 Consolidated Capital to Average Assets $ 308,588 9.08 % $ 135,949 3.00 % N/A N/A

Dividends and Basic Earnings _2

Dividends and Basic Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2019
Dividends and Basic Earnings Per Common Share [Abstract]
Calculation of Basic Earnings per Common Share	The following table calculates the basic earnings per common share for the periods indicated. ( net income in thousands 2019 2018 2017 Net Income $ 56,036 $ 45,527 $ 28,370 Weighted Average Number of Common Shares Outstanding 787,227 801,229 809,834 Basic Earnings Per Common Share $ 71.18 $ 56.82 $ 35.03

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value Measurements [Abstract]
Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following tables present information about the Company’s assets and liabilities measured at fair value on a recurring basis and indicate the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value for the periods indicated. Fair Value Measurements At December 31, 2019, Using (in thousands) Fair Value Total Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Available-for-Sale Securities: US Treasury Notes $ 54,995 $ 54,995 $ - $ - US Govt SBA 10,798 - 10,798 - Mortgage Backed Securities 441,078 - 441,078 - Other 515 205 310 - Total Assets Measured at Fair Value On a Recurring Basis $ 507,386 $ 55,200 $ 452,186 $ - Fair Value Measurements At December 31, 2018, Using (in thousands) Fair Value Total Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Available-for-Sale Securities: Government Agency & Government-Sponsored Entities $ 3,039 $ - $ 3,039 $ - US Treasury Notes 164,514 164,514 - - US Govt SBA 15,447 - 15,447 - Mortgage Backed Securities 307,045 - 307,045 - Other 5,351 202 310 4,839 Total Assets Measured at Fair Value On a Recurring Basis $ 495,396 $ 164,716 $ 325,841 $ 4,839
Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis	The following tables present information about the Company’s impaired loans & leases and other real estate, classes of assets or liabilities that the Company carries at fair value on a non-recurring basis, and indicates the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value for the periods indicated. Not all impaired loans & leases are carried at fair value. Impaired loans & leases are only included in the following tables when their fair value is based upon an appraisal of the collateral, and if that appraisal results in a partial charge-off or the establishment of a specific reserve. Fair Value Measurements At December 31, 2019, Using (in thousands) Fair Value Total Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Impaired Loans: Commercial Real Estate $ 2,588 $ - $ - $ 2,588 Residential 1st Mortgage 1,403 - - 1,403 Home Equity Lines and Loans 142 - - 142 Agricultural 88 - - 88 Commercial 1,391 - - 1,391 Consumer 139 - - 139 Total Impaired Loans 5,751 - - 5,751 Other Real Estate: Real Estate Construction 873 - - 873 Total Other Real Estate 873 - - 873 Total Assets Measured at Fair Value On a Non-Recurring Basis $ 6,624 $ - $ - $ 6,624 Fair Value Measurements At December 31, 2018, Using (in thousands) Fair Value Total Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Impaired Loans: Commercial Real Estate $ 2,658 $ - $ - $ 2,658 Residential 1st Mortgage 1,550 - - 1,550 Home Equity Lines and Loans 70 - - 70 Commercial 1,454 - - 1,454 Total Impaired Loans 5,732 - - 5,732 Other Real Estate: Real Estate Construction 873 - - 873 Total Other Real Estate 873 - - 873 Total Assets Measured at Fair Value On a Non-Recurring Basis $ 6,605 $ - $ - $ 6,605
Quantitative Information about Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on a Non-Recurring Basis	The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at December 31, 2019 and 2018: December 31, 2019 (in thousands) Fair Value Valuation Technique Unobservable Inputs Range, Weighted Avg. Impaired Loans: Commercial Real Estate $ 2,588 Income Approach Capitalization Rate 3.3 % Residential 1st Mortgages $ 1,403 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 0.8% - 6.4%, 3 % Home Equity Lines and Loans $ 142 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 1% - 2%, 1.3 % Agricultural $ 88 Income Approach Capitalization Rate 4.3 % Commercial $ 1,391 Income Approach Capitalization Rate 3.3 % Consumer $ 139 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 40.6 % Other Real Estate: Real Estate Construction $ 873 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 10 % December 31, 2018 (in thousands) Fair Value Valuation Technique Unobservable Inputs Range, Weighted Avg. Impaired Loans: Commercial Real Estate $ 2,658 Income Approach Capitalization Rate 3.25 % Residential 1st Mortgages $ 1,550 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 1% - 4%, 3 % Home Equity Lines and Loans $ 70 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 1% - 2%, 2 % Commercial $ 1,454 Income Approach Capitalization Rate 2.95% - 8.70%, 3.40 % Other Real Estate: Real Estate Construction $ 873 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 10 %

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value of Financial Instruments [Abstract]
Book Value and Estimated Fair Value of Financial Instruments	The following tables summarize the book value and estimated fair value of financial instruments for the periods indicated: Fair Value of Financial Instruments Using December 31, 2019 (in thousands) Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Estimated Fair Value Assets: Cash and Cash Equivalents $ 294,758 $ 294,758 $ - $ - $ 294,758 Investment Securities Available-for-Sale 507,386 55,200 452,186 - 507,386 Investment Securities Held-to-Maturity 60,229 - 31,253 29,844 61,097 Loans & Leases, Net of Deferred Fees & Allowance 2,618,015 - - 2,584,805 2,584,805 Accrued Interest Receivable 16,733 - 16,733 - 16,733 Liabilities: Deposits 3,278,019 2,760,097 517,172 - 3,277,269 Subordinated Debentures 10,310 - 7,325 - 7,325 Accrued Interest Payable 2,795 - 2,795 - 2,795 Fair Value of Financial Instruments Using December 31, 2018 (in thousands) Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Estimated Fair Value Assets: Cash and Cash Equivalents $ 145,564 $ 145,564 $ - $ - $ 145,564 Investment Securities Available-for-Sale 495,396 164,716 325,841 4,839 495,396 Investment Securities Held-to-Maturity 53,566 - 35,083 18,655 53,738 Loans & Leases, Net of Deferred Fees & Allowance 2,515,975 - - 2,485,182 2,485,182 Accrued Interest Receivable 14,098 - 14,098 - 14,098 Liabilities: Deposits 3,062,832 2,572,805 485,766 - 3,058,571 Subordinated Debentures 10,310 - 7,745 - 7,745 Accrued Interest Payable 1,365 - 1,365 - 1,365

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies [Abstract]
Off Balance Sheet Arrangements	The Company had the following off balance sheet commitments as of the dates indicated. (in thousands) December 31, 2019 December 31, 2018 Commitments to Extend Credit $ 919,982 $ 828,539 Letters of Credit 20,346 19,108 Performance Guarantees Under Interest Rate Swap Contracts Entered Into Between Our Borrowing Customers and Third Parties 1,513 -

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Information Related to Operating Leases	The table below summarizes the information related to our operating leases: (in thousands except for percent and period data) Year Ended December 31, 2019 Cash Paid for Amounts Included in the Measurement of Lease Liabilities Operating Cash Flow from Operating Leases $ 783 Right-of-Use Assets Obtained in Exchange for New Operating Lease Liabilities $ 5,645 Weighted-Average Remaining Lease Term - Operating Leases, in Years 7.88 Weighted-Average Discount Rate - Operating Leases 3.2 %
Maturity of Remaining Lease Liability	The table below summarizes the maturity of remaining lease liability: (in thousands) December 31, 2019 2020 795 2021 719 2022 686 2023 697 2024 707 2025 and thereafter 2,105 Total Lease Payments 5,709 Less: Interest (679 ) Present Value of Lease Liabilities $ 5,030

Parent Company Financial Info_2

Parent Company Financial Information (Tables)	12 Months Ended
	Dec. 31, 2019
Parent Company Financial Information [Abstract]
Condensed Balance Sheets	The following financial information is presented as of December 31 for the periods indicated. Farmers & Merchants Bancorp Condensed Balance Sheets (in thousands) 2019 2018 Cash $ 1,341 $ 335 Investment in Farmers & Merchants Bank of Central California 378,271 321,134 Investment Securities 411 409 Other Assets 102 (57 ) Total Assets $ 380,125 $ 321,821 Subordinated Debentures $ 10,310 $ 10,310 Liabilities 519 296 Shareholders’ Equity 369,296 311,215 Total Liabilities and Shareholders’ Equity $ 380,125 $ 321,821
Condensed Statements of Income	Year Ended December 31, (in thousands) 2019 2018 2017 Equity (Loss) in Undistributed Earnings in Farmers & Merchants Bank of Central California $ 44,571 $ (26,488 ) $ 5,575 Dividends from Subsidiary 13,166 73,010 23,575 Interest Income 17 16 13 Other Expenses, Net (2,416 ) (1,527 ) (1,552 ) Tax Benefit 698 516 759 Net Income $ 56,036 $ 45,527 $ 28,370
Condensed Statements of Cash Flows	Year Ended December 31, (in thousands) 2019 2018 2017 Cash Flows from Operating Activities: Net Income $ 56,036 $ 45,527 $ 28,370 Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities: (Equity) Loss in Undistributed Net Earnings from Subsidiary (44,571 ) 26,488 (5,575 ) Net (Increase) in Other Assets (160 ) (125 ) (11,822 ) Net Increase (Decrease) in Liabilities 222 (942 ) 112 Net Cash Provided by Operating Activities 11,527 70,948 11,085 Investing Activities: Securities Sold or Matured - - 1 Payments for Business Acquisition - (28,642 ) - Payments for Investments in Subsidiaries (6,273 ) (10,503 ) (2,953 ) Net Cash Used by Investing Activities (6,273 ) (39,145 ) (2,952 ) Financing Activities: Stock Repurchased - (31,152 ) - Issuance of Common Stock 6,973 10,503 2,953 Cash Dividends (11,221 ) (11,151 ) (10,982 ) Net Cash Used by Financing Activities (4,248 ) (31,800 ) (8,029 ) Increase in Cash and Cash Equivalents 1,006 3 104 Cash and Cash Equivalents at Beginning of Year 335 332 228 Cash and Cash Equivalents at End of Year $ 1,341 $ 335 $ 332

Quarterly Unaudited Financial_2

Quarterly Unaudited Financial Data (Tables)	12 Months Ended
	Dec. 31, 2019
Quarterly Unaudited Financial Data [Abstract]
Quarterly Financial Information	The following tables set forth certain unaudited historical quarterly financial data for each of the eight consecutive quarters in 2019 and 2018. This information is derived from unaudited consolidated financial statements that include, in management’s opinion, all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation when read in conjunction with the consolidated financial statements and notes thereto included elsewhere in this Form 10-K. 2019 (in thousands except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Total Total Interest Income $ 37,173 $ 38,626 $ 38,810 $ 39,099 $ 153,708 Total Interest Expense 2,966 3,253 3,530 3,445 13,194 Net Interest Income 34,207 35,373 35,280 35,654 140,514 Provision for Credit Losses - 200 - - 200 Net Interest Income After Provision for Credit Losses 34,207 35,173 35,280 35,654 140,314 Total Non-Interest Income 4,464 4,400 3,974 4,403 17,241 Total Non-Interest Expense 20,445 20,565 20,856 20,376 82,242 Income Before Income Taxes 18,226 19,008 18,398 19,681 75,313 Provision for Income Taxes 4,677 4,903 4,660 5,037 19,277 Net Income $ 13,549 $ 14,105 $ 13,738 $ 14,644 $ 56,036 Basic Earnings Per Common Share $ 17.27 $ 17.92 $ 17.45 $ 18.54 $ 71.18 2018 (in thousands except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Total Total Interest Income $ 30,428 $ 32,161 $ 34,065 $ 36,799 $ 133,453 Total Interest Expense 1,522 1,660 2,157 2,611 7,950 Net Interest Income 28,906 30,501 31,908 34,188 125,503 Provision for Credit Losses 333 500 2,500 2,200 5,533 Net Interest Income After Provision for Credit Losses 28,573 30,001 29,408 31,988 119,970 Total Non-Interest Income 4,665 2,283 4,208 4,063 15,219 Total Non-Interest Expense 19,936 18,145 18,621 18,757 75,459 Income Before Income Taxes 13,302 14,139 14,995 17,294 59,730 Provision for Income Taxes 3,361 3,589 2,995 4,258 14,203 Net Income $ 9,941 $ 10,550 $ 12,000 $ 13,036 $ 45,527 Basic Earnings Per Common Share $ 12.24 $ 12.90 $ 15.12 $ 16.56 $ 56.82

Significant Accounting Polici_4

Significant Accounting Policies (Details) $ in Thousands	Oct. 10, 2018USD ($)Branch	Oct. 09, 2018USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Acquisitions [Abstract]
Gain on remeasurement of previously held equity investment			$ 0	$ 997	$ 0
Assets			$ 3,721,830	$ 3,434,243
Bank of Rio Vista [Member]
Acquisitions [Abstract]
Percentage of equity interest in acquiree prior to acquisition of remaining interest		39.65%
Gain on remeasurement of previously held equity investment		$ 997
Assets	$ 217,500
Number of branches | Branch	3

Significant Accounting Polici_5

Significant Accounting Policies, Accounting Changes (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets and Liabilities, Lessee [Abstract]
Operating lease right-of-use asset	$ 4,980
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets
Operating lease liability	$ 5,030
Operating Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilities	us-gaap:OtherLiabilities
ASU 2016-02 [Member]
Assets and Liabilities, Lessee [Abstract]
Operating lease right-of-use asset		$ 4,730
Operating lease liability		$ 4,730

Significant Accounting Polici_6

Significant Accounting Policies, Out of Period Adjustment (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2018USD ($)
Out of Period Adjustment [Member]
Out of Period Adjustment [Abstract]
Cumulative impact of out of period adjustment on provision for income taxes	$ (990)

Significant Accounting Polici_7

Significant Accounting Policies, Investment Securities (Details)	12 Months Ended
	Dec. 31, 2019Component
Investment Securities [Abstract]
Number of components into which amount of impairment is split	2

Significant Accounting Polici_8

Significant Accounting Policies, Loans & Leases and Allowance for Credit Losses (Details)	12 Months Ended
	Dec. 31, 2019ComponentCategoryFactor
Loans & Leases [Abstract]
Consecutive months of payments to demonstrate sustained period of performance	6 months
Allowance for Credit Losses [Abstract]
Number of primary components of overall allowance for credit losses | Component	3
Number of categories into which risk ratings are grouped | Category	5
Minimum [Member]
Loans & Leases [Abstract]
Period after which loans are placed on non accrual status	90 days
Agricultural Real Estate [Member]
Allowance for Credit Losses [Abstract]
Number of risk factors on loans	2
Agricultural [Member]
Allowance for Credit Losses [Abstract]
Number of risk factors on loans	2

Significant Accounting Polici_9

Significant Accounting Policies, Premises and Equipment (Details)	12 Months Ended
	Dec. 31, 2019
Buildings [Member] | Minimum [Member]
Premises and Equipment [Abstract]
Estimated useful lives	30 years
Buildings [Member] | Maximum [Member]
Premises and Equipment [Abstract]
Estimated useful lives	40 years
Furniture and Equipment [Member] | Minimum [Member]
Premises and Equipment [Abstract]
Estimated useful lives	3 years
Furniture and Equipment [Member] | Maximum [Member]
Premises and Equipment [Abstract]
Estimated useful lives	7 years
Leasehold Improvements [Member] | Minimum [Member]
Premises and Equipment [Abstract]
Estimated useful lives	5 years
Leasehold Improvements [Member] | Maximum [Member]
Premises and Equipment [Abstract]
Estimated useful lives	10 years

Significant Accounting Polic_10

Significant Accounting Policies, Income Taxes (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Income Tax Penalties and Interest Expense [Abstract]
Interest	$ 0
Penalties	$ 0

Significant Accounting Polic_11

Significant Accounting Policies, Goodwill and Other Intangible Assets (Details) - Core Deposit Intangible [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Goodwill and Other Intangible Assets [Abstract]
Estimated useful life	10 years
Future estimated amortization expense for CDI [Abstract]
2020	$ 626
2021	611
2022	593
2023	573
2024	549
Thereafter	1,688
Total	$ 4,640

Investment Securities, Securiti

Investment Securities, Securities Available-for-Sale (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost		$ 502,693	$ 499,639
Gross unrealized gains		4,905	1,208
Gross unrealized losses		212	5,451
Fair value		507,386	495,396
Government Agency & Government-Sponsored Entities [Member]
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost			3,033
Gross unrealized gains			6
Gross unrealized losses			0
Fair value			3,039
US Treasury Notes [Member]
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost		54,745	164,672
Gross unrealized gains		250	0
Gross unrealized losses		0	158
Fair value		54,995	164,514
US Government Agency SBA [Member]
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost		10,902	15,601
Gross unrealized gains		9	6
Gross unrealized losses		113	160
Fair value		10,798	15,447
Mortgage Backed Securities [Member]
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost	[1]	436,531	310,982
Gross unrealized gains	[1]	4,646	1,196
Gross unrealized losses	[1]	99	5,133
Fair value	[1]	441,078	307,045
Other [Member]
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost		515	5,351
Gross unrealized gains		0	0
Gross unrealized losses		0	0
Fair value		$ 515	$ 5,351
[1]	All Mortgage Backed Securities were issued by an agency or government sponsored entity of the U.S. government.

Investment Securities, Securi_2

Investment Securities, Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Book values, estimated fair values and unrealized gains and losses of investments classified as held-to-maturity [Abstract]
Book value	$ 60,229	$ 53,566
Gross unrealized gains	880	211
Gross unrealized losses	12	39
Fair value	61,097	53,738
Obligations of States and Political Subdivisions [Member]
Book values, estimated fair values and unrealized gains and losses of investments classified as held-to-maturity [Abstract]
Book value	60,229	53,566
Gross unrealized gains	880	211
Gross unrealized losses	12	39
Fair value	$ 61,097	$ 53,738

Investment Securities, Contract

Investment Securities, Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Amortized Cost [Abstract]
Within one year	$ 40,509
After one year through five years	15,146
After five years through ten years	955
After ten years	9,552
Amortized cost, excluding securities without single maturity date	66,162
Investment securities not due at a single maturity date, mortgage-backed securities	436,531
Amortized cost	502,693	$ 499,639
Fair Value [Abstract]
Within one year	40,510
After one year through five years	15,393
After five years through ten years	955
After ten years	9,450
Fair value, excluding investment securities not due at a single maturity date	66,308
Investment securities not due at a single maturity date, mortgage-backed securities	441,078
Fair/Book value	507,386	495,396
Book Value [Abstract]
Within one year	2,446
After one year through five years	5,902
After five years through ten years	23,980
After ten years	27,901
Book value, excluding securities without single maturity date	60,229
Investment securities not due at a single maturity date, mortgage-backed securities	0
Book value	60,229	53,566
Fair Value [Abstract]
Within one year	2,446
After one year through five years	5,905
After five years through ten years	24,689
After ten years	28,057
Fair/Book value, excluding securities without single maturity date	61,097
Investment securities not due at a single maturity date, mortgage-backed securities	0
Fair value	$ 61,097	$ 53,738

Investment Securities, Securi_3

Investment Securities, Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)Security	Dec. 31, 2018USD ($)
Investment Securities, Qualitative Disclosure [Abstract]
Number of investment securities held | Security	595
Less than 12 months, number of positions | Security	29
12 months or more, number of positions | Security	74
Available-for-sale Securities in Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value	$ 133,698	$ 180,524
Less than 12 months unrealized loss	94	563
12 months or more fair value	5,911	255,418
12 months or more unrealized loss	118	4,888
Total fair value	139,609	435,942
Total unrealized loss	212	5,451
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value	355
Less than 12 months unrealized loss	12
12 months or more fair value	0
12 months or more unrealized loss	0
Total fair value	355
Total unrealized loss	12
Obligations of States and Political Subdivisions [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value	355
Less than 12 months unrealized loss	12
12 months or more fair value	0
12 months or more unrealized loss	0
Total fair value	355
Total unrealized loss	$ 12
Less than 12 months, number of positions | Security	2
12 months or more, number of positions | Security	0
Municipal Bonds [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Percentage of portfolio rated at either issue or issuer level	100.00%
Government Agency & Government-Sponsored Entities [Member]
Available-for-sale Securities in Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of positions | Security	0
12 months or more, number of positions | Security	0
US Treasury Notes [Member]
Available-for-sale Securities in Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value		124,985
Less than 12 months unrealized loss		7
12 months or more fair value		39,529
12 months or more unrealized loss		151
Total fair value		164,514
Total unrealized loss		158
Less than 12 months, number of positions | Security	0
12 months or more, number of positions | Security	0
US Government Agency SBA [Member]
Available-for-sale Securities in Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value	$ 2,693	3,250
Less than 12 months unrealized loss	6	28
12 months or more fair value	5,198	8,618
12 months or more unrealized loss	107	132
Total fair value	7,891	11,868
Total unrealized loss	$ 113	160
Less than 12 months, number of positions | Security	18
12 months or more, number of positions | Security	53
Mortgage Backed Securities [Member]
Available-for-sale Securities in Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value	$ 131,005	52,289
Less than 12 months unrealized loss	88	528
12 months or more fair value	713	207,271
12 months or more unrealized loss	11	4,605
Total fair value	131,718	259,560
Total unrealized loss	$ 99	$ 5,133
Less than 12 months, number of positions | Security	9
12 months or more, number of positions | Security	21

Investment Securities, Proceeds

Investment Securities, Proceeds From Sales (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Proceeds from sales and calls of securities [Abstract]
Proceeds	$ 5,300	$ 99,323	$ 7,831
Gains	1	78	143
Losses	$ 0	$ 1,338	$ 12

Investment Securities, Pledged

Investment Securities, Pledged Securities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Investment Securities [Abstract]
Securities pledged to secure public deposits, FHLB borrowings, and other government agency deposits as required by law	$ 352.5	$ 268.8

Federal Home Loan Bank Stock _2

Federal Home Loan Bank Stock and Other Equity Securities, at Cost (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Federal Home Loan Bank Stock and Other Equity Securities, at Cost [Abstract]
FHLB stock and other equity securities	$ 12.7	$ 12.6

Loans & Leases (Details)

Loans & Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Loans and Leases Receivable, Net Amount [Abstract]
Total Gross Loans & Leases	$ 2,680,011	$ 2,578,120
Less: Unearned Income	6,984	6,879
Total Loans & Leases	2,673,027	2,571,241
Less: Allowance for Credit Losses	55,012	55,266	$ 50,342
Loans & Leases, Net	2,618,015	2,515,975
Collateral on borrowing lines	793,500
Federal Home Loan Bank [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Collateral on borrowing lines	793,500
Maximum borrowing capacity	668,400
Federal Reserve Bank [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Collateral on borrowing lines	696,500
Maximum borrowing capacity	441,300
Commercial Real Estate [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Total Gross Loans & Leases	846,486	834,476
Total Loans & Leases	838,570	826,549
Less: Allowance for Credit Losses	11,053	11,609	10,922
Agricultural Real Estate [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Total Gross Loans & Leases	625,767	584,625
Total Loans & Leases	625,767	584,625
Less: Allowance for Credit Losses	15,128	14,092	12,085
Real Estate Construction [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Total Gross Loans & Leases	115,644	98,568
Total Loans & Leases	115,644	98,568
Less: Allowance for Credit Losses	1,949	1,249	1,846
Residential 1st Mortgages [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Total Gross Loans & Leases	255,253	259,736
Total Loans & Leases	255,253	259,736
Less: Allowance for Credit Losses	855	880	815
Home Equity Lines and Loans [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Total Gross Loans & Leases	39,270	40,789
Total Loans & Leases	39,270	40,789
Less: Allowance for Credit Losses	2,675	2,761	2,324
Agricultural [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Total Gross Loans & Leases	292,904	290,463
Total Loans & Leases	292,904	290,463
Less: Allowance for Credit Losses	8,076	8,242	8,159
Commercial [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Total Gross Loans & Leases	384,795	343,834
Total Loans & Leases	384,795	343,834
Less: Allowance for Credit Losses	11,466	11,656	9,197
Consumer & Other [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Total Gross Loans & Leases	15,422	19,412
Total Loans & Leases	15,422	19,412
Less: Allowance for Credit Losses	456	494	209
Leases [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Total Gross Loans & Leases	104,470	106,217
Total Loans & Leases	105,402	107,265
Less: Allowance for Credit Losses	$ 3,162	$ 4,022	$ 3,363

Allowance for Credit Losses, Al

Allowance for Credit Losses, Allocation of The Allowance For Loan Losses by Portfolio Segment and By Impairment Methodology (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Allowance for Credit Losses [Roll Forward]
Beginning Balance				$ 55,266				$ 50,342	$ 55,266	$ 50,342
Charge-Offs									(675)	(767)
Recoveries									221	158
Provision	$ 0	$ 0	$ 200	0	$ 2,200	$ 2,500	$ 500	333	200	5,533	$ 2,850
Ending Balance	55,012				55,266				55,012	55,266	50,342
Ending Balance Individually Evaluated for Impairment	661				565				661	565
Ending Balance Collectively Evaluated for Impairment	54,351				54,701				54,351	54,701
Loans & Leases [Abstract]
Ending Balance	2,673,027				2,571,241				2,673,027	2,571,241
Ending Balance Individually Evaluated for Impairment	14,691				16,347				14,691	16,347
Ending Balance Collectively Evaluated for Impairment	2,658,336				2,554,894				2,658,336	2,554,894
Commercial Real Estate [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance				11,609				10,922	11,609	10,922
Charge-Offs									0	0
Recoveries									0	2
Provision									(556)	685
Ending Balance	11,053				11,609				11,053	11,609	10,922
Ending Balance Individually Evaluated for Impairment	234				234				234	234
Ending Balance Collectively Evaluated for Impairment	10,819				11,375				10,819	11,375
Loans & Leases [Abstract]
Ending Balance	838,570				826,549				838,570	826,549
Ending Balance Individually Evaluated for Impairment	4,524				4,676				4,524	4,676
Ending Balance Collectively Evaluated for Impairment	834,046				821,873				834,046	821,873
Agricultural Real Estate [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance				14,092				12,085	14,092	12,085
Charge-Offs									0	0
Recoveries									38	0
Provision									998	2,007
Ending Balance	15,128				14,092				15,128	14,092	12,085
Ending Balance Individually Evaluated for Impairment	0				0				0	0
Ending Balance Collectively Evaluated for Impairment	15,128				14,092				15,128	14,092
Loans & Leases [Abstract]
Ending Balance	625,767				584,625				625,767	584,625
Ending Balance Individually Evaluated for Impairment	5,654				7,238				5,654	7,238
Ending Balance Collectively Evaluated for Impairment	620,113				577,387				620,113	577,387
Real Estate Construction [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance				1,249				1,846	1,249	1,846
Charge-Offs									0	0
Recoveries									0	0
Provision									700	(597)
Ending Balance	1,949				1,249				1,949	1,249	1,846
Ending Balance Individually Evaluated for Impairment	0				0				0	0
Ending Balance Collectively Evaluated for Impairment	1,949				1,249				1,949	1,249
Loans & Leases [Abstract]
Ending Balance	115,644				98,568				115,644	98,568
Ending Balance Individually Evaluated for Impairment	0				0				0	0
Ending Balance Collectively Evaluated for Impairment	115,644				98,568				115,644	98,568
Residential 1st Mortgages [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance				880				815	880	815
Charge-Offs									0	(31)
Recoveries									13	15
Provision									(38)	81
Ending Balance	855				880				855	880	815
Ending Balance Individually Evaluated for Impairment	118				125				118	125
Ending Balance Collectively Evaluated for Impairment	737				755				737	755
Loans & Leases [Abstract]
Ending Balance	255,253				259,736				255,253	259,736
Ending Balance Individually Evaluated for Impairment	2,368				2,491				2,368	2,491
Ending Balance Collectively Evaluated for Impairment	252,885				257,245				252,885	257,245
Home Equity Lines and Loans [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance				2,761				2,324	2,761	2,324
Charge-Offs									0	(8)
Recoveries									28	6
Provision									(114)	439
Ending Balance	2,675				2,761				2,675	2,761	2,324
Ending Balance Individually Evaluated for Impairment	12				15				12	15
Ending Balance Collectively Evaluated for Impairment	2,663				2,746				2,663	2,746
Loans & Leases [Abstract]
Ending Balance	39,270				40,789				39,270	40,789
Ending Balance Individually Evaluated for Impairment	229				297				229	297
Ending Balance Collectively Evaluated for Impairment	39,041				40,492				39,041	40,492
Agricultural [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance				8,242				8,159	8,242	8,159
Charge-Offs									0	0
Recoveries									0	61
Provision									(166)	22
Ending Balance	8,076				8,242				8,076	8,242	8,159
Ending Balance Individually Evaluated for Impairment	99				0				99	0
Ending Balance Collectively Evaluated for Impairment	7,977				8,242				7,977	8,242
Loans & Leases [Abstract]
Ending Balance	292,904				290,463				292,904	290,463
Ending Balance Individually Evaluated for Impairment	188				0				188	0
Ending Balance Collectively Evaluated for Impairment	292,716				290,463				292,716	290,463
Commercial [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance				11,656				9,197	11,656	9,197
Charge-Offs									(592)	(613)
Recoveries									90	20
Provision									312	3,052
Ending Balance	11,466				11,656				11,466	11,656	9,197
Ending Balance Individually Evaluated for Impairment	137				185				137	185
Ending Balance Collectively Evaluated for Impairment	11,329				11,471				11,329	11,471
Loans & Leases [Abstract]
Ending Balance	384,795				343,834				384,795	343,834
Ending Balance Individually Evaluated for Impairment	1,528				1,639				1,528	1,639
Ending Balance Collectively Evaluated for Impairment	383,267				342,195				383,267	342,195
Consumer & Other [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance				494				209	494	209
Charge-Offs									(83)	(115)
Recoveries									52	54
Provision									(7)	346
Ending Balance	456				494				456	494	209
Ending Balance Individually Evaluated for Impairment	61				6				61	6
Ending Balance Collectively Evaluated for Impairment	395				488				395	488
Loans & Leases [Abstract]
Ending Balance	15,422				19,412				15,422	19,412
Ending Balance Individually Evaluated for Impairment	200				6				200	6
Ending Balance Collectively Evaluated for Impairment	15,222				19,406				15,222	19,406
Leases [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance				4,022				3,363	4,022	3,363
Charge-Offs									0	0
Recoveries									0	0
Provision									(860)	659
Ending Balance	3,162				4,022				3,162	4,022	3,363
Ending Balance Individually Evaluated for Impairment	0				0				0	0
Ending Balance Collectively Evaluated for Impairment	3,162				4,022				3,162	4,022
Loans & Leases [Abstract]
Ending Balance	105,402				107,265				105,402	107,265
Ending Balance Individually Evaluated for Impairment	0				0				0	0
Ending Balance Collectively Evaluated for Impairment	105,402				107,265				105,402	107,265
Unallocated [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance				$ 261				$ 1,422	261	1,422
Charge-Offs									0	0
Recoveries									0	0
Provision									(69)	(1,161)
Ending Balance	192				261				192	261	$ 1,422
Ending Balance Individually Evaluated for Impairment	0				0				0	0
Ending Balance Collectively Evaluated for Impairment	192				261				192	261
Loans & Leases [Abstract]
Ending Balance	0				0				0	0
Ending Balance Individually Evaluated for Impairment	0				0				0	0
Ending Balance Collectively Evaluated for Impairment	0				0				0	0
Restructured Loans [Member]
Loans & Leases [Abstract]
Ending Balance Individually Evaluated for Impairment	$ 2,600				$ 2,800				$ 2,600	$ 2,800

Allowance for Credit Losses, Lo

Allowance for Credit Losses, Loan Portfolio Allocated by Management's Internal Credit Ratings (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	$ 2,673,027	$ 2,571,241
Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	2,643,190	2,543,255
Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	13,621	12,865
Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	16,216	15,121
Doubtful [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0
Loss [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0
Commercial Real Estate [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	838,570	826,549
Commercial Real Estate [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	831,941	823,983
Commercial Real Estate [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	6,629	2,566
Commercial Real Estate [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0
Agricultural Real Estate [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	625,767	584,625
Agricultural Real Estate [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	611,792	566,612
Agricultural Real Estate [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	1,136	4,703
Agricultural Real Estate [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	12,839	13,310
Real Estate Construction [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	115,644	98,568
Real Estate Construction [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	115,644	98,568
Real Estate Construction [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0
Real Estate Construction [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0
Residential 1st Mortgages [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	255,253	259,736
Residential 1st Mortgages [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	254,459	259,208
Residential 1st Mortgages [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0
Residential 1st Mortgages [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	794	528
Home Equity Lines and Loans [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	39,270	40,789
Home Equity Lines and Loans [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	39,092	40,744
Home Equity Lines and Loans [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0
Home Equity Lines and Loans [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	178	45
Agricultural [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	292,904	290,463
Agricultural [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	289,276	284,561
Agricultural [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	2,617	5,433
Agricultural [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	1,011	469
Commercial [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	384,795	343,834
Commercial [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	380,650	343,085
Commercial [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	3,239	163
Commercial [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	906	586
Consumer & Other [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	15,422	19,412
Consumer & Other [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	14,934	19,229
Consumer & Other [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0
Consumer & Other [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	488	183
Leases [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	105,402	107,265
Leases [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	105,402	107,265
Leases [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0
Leases [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	$ 0	$ 0

Allowance for Credit Losses, Ag

Allowance for Credit Losses, Aging Analysis of Loan Portfolio by the Time Past Due (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	$ 0	$ 0
Nonaccrual	0	0
Total Past Due	352	1,438
Current	2,672,675	2,569,803
Total Loans & Leases	2,673,027	2,571,241
Interest income forgone on nonaccrual loans	0	0	$ 0
30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	352	707
60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	731
Commercial Real Estate [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due	0	731
Current	838,570	825,818
Total Loans & Leases	838,570	826,549
Commercial Real Estate [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Commercial Real Estate [Member] | 60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	731
Agricultural Real Estate [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due	0	0
Current	625,767	584,625
Total Loans & Leases	625,767	584,625
Agricultural Real Estate [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Agricultural Real Estate [Member] | 60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Real Estate Construction [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due	240	327
Current	115,404	98,241
Total Loans & Leases	115,644	98,568
Real Estate Construction [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	240	327
Real Estate Construction [Member] | 60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Residential 1st Mortgages [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due	0	367
Current	255,253	259,369
Total Loans & Leases	255,253	259,736
Residential 1st Mortgages [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	367
Residential 1st Mortgages [Member] | 60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Home Equity Lines and Loans [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due	0	0
Current	39,270	40,789
Total Loans & Leases	39,270	40,789
Home Equity Lines and Loans [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Home Equity Lines and Loans [Member] | 60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Agricultural [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due	0	0
Current	292,904	290,463
Total Loans & Leases	292,904	290,463
Agricultural [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Agricultural [Member] | 60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Commercial [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due	77	0
Current	384,718	343,834
Total Loans & Leases	384,795	343,834
Commercial [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	77	0
Commercial [Member] | 60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Consumer & Other [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due	35	13
Current	15,387	19,399
Total Loans & Leases	15,422	19,412
Consumer & Other [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	35	13
Consumer & Other [Member] | 60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Leases [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0
Nonaccrual	0	0
Total Past Due	0	0
Current	105,402	107,265
Total Loans & Leases	105,402	107,265
Leases [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0
Leases [Member] | 60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	$ 0	$ 0

Allowance for Credit Losses, Im

Allowance for Credit Losses, Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
With no related allowance recorded [Abstract]
Recorded Investment	$ 5,740	$ 7,334
Unpaid Principal Balance	5,740	7,334
Average Recorded Investment	6,167	3,945
Interest Income Recognized	388	135
With an allowance recorded [Abstract]
Recorded Investment	6,368	6,266
Unpaid Principal Balance	6,587	6,460
Related Allowance	612	511
Average Recorded Investment	6,328	6,217
Interest Income Recognized	230	206
Total [Abstract]
Recorded Investment	12,108	13,600
Unpaid Principal Balance	12,327	13,794
Related Allowance	612	511
Average Recorded Investment	12,495	10,162
Interest Income Recognized	618	341
Commercial Real Estate [Member]
With no related allowance recorded [Abstract]
Recorded Investment	86	95
Unpaid Principal Balance	86	96
Average Recorded Investment	90	99
Interest Income Recognized	8	8
With an allowance recorded [Abstract]
Recorded Investment	2,822	2,902
Unpaid Principal Balance	2,822	2,892
Related Allowance	234	234
Average Recorded Investment	2,853	2,929
Interest Income Recognized	94	96
Total [Abstract]
Related Allowance	234	234
Agricultural Real Estate [Member]
With no related allowance recorded [Abstract]
Recorded Investment	5,654	7,239
Unpaid Principal Balance	5,654	7,238
Average Recorded Investment	6,069	3,620
Interest Income Recognized	379	119
Residential 1st Mortgages [Member]
With no related allowance recorded [Abstract]
Recorded Investment		0
Unpaid Principal Balance		0
Average Recorded Investment		226
Interest Income Recognized		8
With an allowance recorded [Abstract]
Recorded Investment	1,562	1,640
Unpaid Principal Balance	1,770	1,838
Related Allowance	74	82
Average Recorded Investment	1,601	1,371
Interest Income Recognized	73	48
Total [Abstract]
Related Allowance	74	82
Home Equity Lines and Loans [Member]
With an allowance recorded [Abstract]
Recorded Investment	68	74
Unpaid Principal Balance	79	84
Related Allowance	7	4
Average Recorded Investment	71	76
Interest Income Recognized	4	4
Total [Abstract]
Related Allowance	7	4
Agricultural [Member]
With an allowance recorded [Abstract]
Recorded Investment	188
Unpaid Principal Balance	188
Related Allowance	99
Average Recorded Investment	195
Interest Income Recognized	6
Total [Abstract]
Related Allowance	99
Commercial [Member]
With no related allowance recorded [Abstract]
Recorded Investment	0
Unpaid Principal Balance	0
Average Recorded Investment	8
Interest Income Recognized	1
With an allowance recorded [Abstract]
Recorded Investment	1,528	1,644
Unpaid Principal Balance	1,528	1,639
Related Allowance	137	185
Average Recorded Investment	1,554	1,834
Interest Income Recognized	53	58
Total [Abstract]
Related Allowance	137	185
Consumer & Other [Member]
With an allowance recorded [Abstract]
Recorded Investment	200	6
Unpaid Principal Balance	200	7
Related Allowance	61	6
Average Recorded Investment	54	7
Interest Income Recognized	0	0
Total [Abstract]
Related Allowance	$ 61	$ 6

Allowance for Credit Losses, _2

Allowance for Credit Losses, Loans by Class Modified as Troubled Debt Restructured Loans (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)Loan	Dec. 31, 2018USD ($)Loan
Troubled Debt Restructured Loans [Abstract]
Specific reserves allocated to troubled debt restructured loans & leases	$ 612	$ 511
Commitments to lend additional amounts to customers with outstanding loans that are classified as troubled debt restructurings	$ 0	$ 0
Loans by class modified as troubled debt restructured loans [Abstract]
Number of Loans | Loan	2	3
Pre-Modification Outstanding Recorded Investment	$ 396	$ 7,525
Post-Modification Recorded Outstanding Investment	396	7,494
Increase in allowance for loan losses due to TDR	101
TDR's charge-offs	$ 0	$ 31
Number of loans modified as troubled debt restructurings with subsequent payment defaults | Loan	0	0
Threshold period after which loan is considered to be in payment default	90 days
Stated Interest Rate Reduction [Member]
Troubled Debt Restructured Loans [Abstract]
Period of modifications	5 years
Extended Maturity [Member]
Troubled Debt Restructured Loans [Abstract]
Period of modifications	10 years
Extended Maturity [Member] | Minimum [Member]
Troubled Debt Restructured Loans [Abstract]
Period of modifications	3 months
Extended Maturity [Member] | Maximum [Member]
Troubled Debt Restructured Loans [Abstract]
Period of modifications	6 years
Performing [Member]
Troubled Debt Restructured Loans [Abstract]
Troubled debt restructured loans	$ 12,100	$ 13,600
Agricultural [Member]
Loans by class modified as troubled debt restructured loans [Abstract]
Number of Loans | Loan	1
Pre-Modification Outstanding Recorded Investment	$ 201
Post-Modification Recorded Outstanding Investment	$ 201
Agricultural Real Estate [Member]
Loans by class modified as troubled debt restructured loans [Abstract]
Number of Loans | Loan		1
Pre-Modification Outstanding Recorded Investment		$ 7,239
Post-Modification Recorded Outstanding Investment		$ 7,239
Residential 1st Mortgages [Member]
Loans by class modified as troubled debt restructured loans [Abstract]
Number of Loans | Loan		2
Pre-Modification Outstanding Recorded Investment		$ 286
Post-Modification Recorded Outstanding Investment		$ 255
Consumer & Other [Member]
Loans by class modified as troubled debt restructured loans [Abstract]
Number of Loans | Loan	1
Pre-Modification Outstanding Recorded Investment	$ 195
Post-Modification Recorded Outstanding Investment	$ 195

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment, Net [Abstract]
Subtotal	$ 78,800	$ 64,071
Less: Accumulated Depreciation and Amortization	33,529	31,448
Total	45,271	32,623
Depreciation and amortization	2,756	2,421	$ 2,186
Rental income	183	173	$ 169
Land and Buildings [Member]
Property, Plant and Equipment, Net [Abstract]
Subtotal	53,997	39,329
Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment, Net [Abstract]
Subtotal	21,058	21,136
Leasehold Improvements [Member]
Property, Plant and Equipment, Net [Abstract]
Subtotal	$ 3,745	$ 3,606

Other Real Estate (Details)

Other Real Estate (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Other Real Estate [Abstract]
Other real estate, net	$ 873	$ 873

Time Deposits (Details)

Time Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Time Deposits $250,000 or more [Abstract]
Balance	$ 257,392	$ 219,022
Maturities of Time Deposits [Abstract]
2020	462,263
2021	46,150
2022	6,839
2023	1,676
2024	994
Total	$ 517,922	$ 490,027

Income Taxes, Current and Defer

Income Taxes, Current and Deferred Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current [Abstract]
Federal									$ 14,798	$ 2,517	$ 9,460
State									7,733	6,224	4,046
Total Current									22,531	8,741	13,506
Deferred [Abstract]
Federal									(3,500)	5,622	11,154
State									246	(160)	1,451
Total Deferred									(3,254)	5,462	12,605
Total Provision for Taxes	$ 5,037	$ 4,660	$ 4,903	$ 4,677	$ 4,258	$ 2,995	$ 3,589	$ 3,361	$ 19,277	$ 14,203	$ 26,111

Income Taxes, Effective Income

Income Taxes, Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax Provision at Federal Statutory Rate									$ 15,816	$ 12,543	$ 19,068
Interest on Obligations of States and Political Subdivisions exempt from Federal Taxation									(358)	(338)	(617)
State and Local Income Taxes, Net of Federal Income Tax Benefit									6,304	4,791	3,573
Bank Owned Life Insurance									(460)	(434)	(696)
Low-Income Housing Tax Credit									(2,078)	(1,624)	(1,546)
Out of Period Adjustment									0	(802)	0
Deferred Tax Asset Remeasurement									0	0	6,256
Other, Net									53	67	73
Total Provision for Taxes	$ 5,037	$ 4,660	$ 4,903	$ 4,677	$ 4,258	$ 2,995	$ 3,589	$ 3,361	$ 19,277	$ 14,203	$ 26,111
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Tax Provision at Federal Statutory Rate									21.00%	21.00%	35.00%
Interest on Obligations of States and Political Subdivisions exempt from Federal Taxation									(0.50%)	(0.60%)	(1.10%)
State and Local Income Taxes, Net of Federal Income Tax Benefit									8.40%	7.90%	6.50%
Bank Owned Life Insurance									(0.60%)	(0.70%)	(1.30%)
Low-Income Housing Tax Credit									(2.80%)	(2.70%)	(2.80%)
Out of Period Adjustment									(0.00%)	(1.30%)	(0.00%)
Deferred Tax Asset Remeasurement									0.00%	0.00%	11.50%
Other, Net									0.10%	0.10%	0.10%
Total Provision for Taxes									25.60%	23.80%	47.90%

Income Taxes, Components of Net

Income Taxes, Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Deferred Tax Assets [Abstract]
Allowance for Credit Losses	$ 15,925	$ 15,877
Accrued Liabilities	8,452	7,444
Deferred Compensation	14,200	11,207
State Franchise Tax	1,624	1,307
Tax Credit Carry Forward	1,266	0
Lease Liability	1,487	0
Acquired Net Operating Loss	673	715
Fair Value Adjustment on Loans Acquired	286	300
Fair Value Adjustment on ORE Acquired	108	108
Unrealized Loss on Securities Available-for-Sale	0	1,800
Low-Income Housing Investment	286	412
Other	2	7
Total Deferred Tax Assets	44,309	39,177
Deferred Tax Liabilities [Abstract]
Premises and Equipment	(1,974)	(2,226)
Securities Accretion	(370)	(229)
Unrealized Gain on Securities Available-for-Sale	(935)	0
Leasing Activities	(19,226)	(17,215)
Core Deposit Intangible Asset	(1,372)	(1,560)
ROU Lease Asset	(1,471)	0
Prepaid	(66)	(116)
Other	(898)	(1,000)
Total Deferred Tax Liabilities	(26,312)	(22,346)
Net Deferred Tax Assets	$ 17,997	$ 16,831
Tax Provision at Federal Statutory Rate	21.00%	21.00%	35.00%
Increase in income tax provision resulting from onetime re-measurement of deferred tax assets and deferred tax liabilities			$ 6,300

Short Term Borrowings (Details)

Short Term Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Short Term Borrowings [Abstract]
Unused lines of credit	$ 1,300	$ 1,200
Advances from FHLB	0	0
Federal Funds purchased or advances from FRB	$ 0	$ 0

Federal Home Loan Bank Advanc_2

Federal Home Loan Bank Advances (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Federal Home Loan Bank Advances [Abstract]
Federal Home Loan Bank Advances, short term	$ 0	$ 0
Federal Home Loan Bank Advances, long term	0	$ 0
Collateral on borrowing lines	793.5
Borrowing capacity	$ 668.4

Long-term Subordinated Debent_2

Long-term Subordinated Debentures (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)$ / shares
Subordinated Debentures [Abstract]
Guaranteed preferred beneficial interests	$ 10
Liquidation value (per capital security) | $ / shares	$ 1,000
Junior Subordinated Debentures [Member]
Subordinated Debentures [Abstract]
Junior subordinated debentures	$ 10.3
Debt instrument, maturity date	Dec. 17, 2033
Junior Subordinated Debentures [Member] | LIBOR [Member]
Subordinated Debentures [Abstract]
Term of variable rate	3 months
Basis spread on variable rate	2.85%

Shareholders' Equity, Stock Rep

Shareholders' Equity, Stock Repurchase Program, Dividends and Issuance of Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Stock Repurchased [Abstract]
Total consideration for shares to be purchased	$ 31,200		$ 31,152
Per share price of shares purchased (in dollars per share)	$ 700
Minimum [Member]
Stock Issued [Abstract]
Per share price of shares issued (in dollars per share)		$ 715	$ 635
Maximum [Member]
Stock Issued [Abstract]
Per share price of shares issued (in dollars per share)		$ 770	$ 690
Directors and Officers [Member]
Stock Issued [Abstract]
Issuance of common stock (in shares)			2,400
Non-qualified Deferred Compensation Retirement Plans [Member]
Stock Issued [Abstract]
Issuance of common stock (in shares)		9,312	13,520
Common Stock Repurchase Plan [Member]
Stock Repurchased [Abstract]
Approved funds available for common stock repurchase program		$ 20,000
Number of shares of stock purchased (in shares)		0	0

Shareholders' Equity, Complianc

Shareholders' Equity, Compliance with Regulatory Capital Requirements (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Total Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 400,258	$ 346,845
Current Regulatory Capital Requirement, Amount	$ 259,028	$ 243,459
Total Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	12.36%	11.40%
Current Regulatory Capital Requirement, Ratio	8.00%	8.00%
Total Common Equity Tier 1 Capital [Abstract]
Actual Amount	$ 349,601	$ 298,588
Current Regulatory Capital Requirement, Amount	$ 145,703	$ 136,945
Total Common Equity Tier 1 Capital, Ratio [Abstract]
Actual Ratio	10.80%	9.81%
Current Regulatory Capital Requirement, Ratio	4.50%	4.50%
Tier 1 Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 359,601	$ 308,588
Current Regulatory Capital Requirement, Amount	$ 194,271	$ 182,594
Tier 1 Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	11.11%	10.14%
Current Regulatory Capital Requirement Ratio	6.00%	6.00%
Tier 1 Capital to Average Assets [Abstract]
Actual Amount	$ 359,601	$ 308,588
Current Regulatory Capital Requirement, Amount	$ 145,255	$ 135,949
Tier 1 Capital to Average Assets, Ratio [Abstract]
Actual Ratio	9.90%	9.08%
Current Regulatory Capital Requirement, Ratio	3.00%	3.00%
Bank [Member]
Total Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 399,230	$ 346,763
Current Regulatory Capital Requirement, Amount	259,012	243,455
Well Capitalized Under Prompt Corrective Action, Amount	$ 323,765	$ 304,319
Total Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	12.33%	11.39%
Current Regulatory Capital Requirement, Ratio	8.00%	8.00%
Well Capitalized Under Prompt Corrective Action, Ratio	10.00%	10.00%
Total Common Equity Tier 1 Capital [Abstract]
Actual Amount	$ 358,576	$ 308,507
Current Regulatory Capital Requirement, Amount	145,694	136,944
Well Capitalized Under Prompt Corrective Action, Amount	$ 210,447	$ 197,807
Total Common Equity Tier 1 Capital, Ratio [Abstract]
Actual Ratio	11.08%	10.14%
Current Regulatory Capital Requirement, Ratio	4.50%	4.50%
Well Capitalized Under Prompt Corrective Action, Ratio	6.50%	6.50%
Tier 1 Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 358,576	$ 308,507
Current Regulatory Capital Requirement, Amount	194,259	182,591
Well Capitalized Under Prompt Corrective Action, Amount	$ 259,012	$ 243,455
Tier 1 Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	11.08%	10.14%
Current Regulatory Capital Requirement Ratio	6.00%	6.00%
Well Capitalized Under Prompt Corrective Action, Ratio	8.00%	8.00%
Tier 1 Capital to Average Assets [Abstract]
Actual Amount	$ 358,576	$ 308,507
Current Regulatory Capital Requirement, Amount	145,079	134,822
Well Capitalized Under Prompt Corrective Action, Amount	$ 181,349	$ 168,527
Tier 1 Capital to Average Assets, Ratio [Abstract]
Actual Ratio	9.89%	9.15%
Current Regulatory Capital Requirement, Ratio	3.00%	3.00%
Well Capitalized Under Prompt Corrective Action, Ratio	5.00%	5.00%

Dividends and Basic Earnings _3

Dividends and Basic Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Dividends and Basic Earnings Per Common Share [Abstract]
Cash dividends declared on common stock									$ 11,221	$ 11,151	$ 10,982
Cash dividends paid per share of common stock (in dollars per share)									$ 14.20	$ 13.90	$ 13.55
Percentage increase in cash dividend per share									2.20%
Basic Earnings per Common Share [Abstract]
Net Income	$ 14,644	$ 13,738	$ 14,105	$ 13,549	$ 13,036	$ 12,000	$ 10,550	$ 9,941	$ 56,036	$ 45,527	$ 28,370
Weighted Average Number of Common Shares Outstanding (in shares)									787,227	801,229	809,834
Basic Earnings Per Common Share (in dollars per share)									$ 71.18	$ 56.82	$ 35.03

Employee Benefit Plans (Details

Employee Benefit Plans (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)Contribution	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Executive Retirement Plan, Life Insurance Arrangements and Senior Management Retention Plan [Abstract]
Net gains on deferred compensation plan investments	$ 2,625	$ 1,088	$ 2,563
Tax-exempt interest earned on the life insurance policies	2,031	1,900	1,822
Executive Officers [Member]
Executive Retirement Plan, Life Insurance Arrangements and Senior Management Retention Plan [Abstract]
Employer contribution	6,600	6,200	4,300
Total accrued liability	58,600	48,500
Net gains on deferred compensation plan investments	2,600	1,100
Tax-exempt interest earned on the life insurance policies	2,000	1,900	1,800
Cash surrender value of life insurance policies	67,100	65,100
Senior Level Employees [Member] | Senior Management Retention Plan [Member]
Executive Retirement Plan, Life Insurance Arrangements and Senior Management Retention Plan [Abstract]
Employer contribution	1,300	1,500	765
Total accrued liability	$ 8,100	5,700
Profit Sharing Plan [Member]
Profit Sharing Plan [Abstract]
us-gaap_PensionPlansDefinedBenefitMember	us-gaap:DefinedContributionPlanTypeExtensibleList
Minimum requisite service period	1 year
Number of annual employer contribution | Contribution	2
Employer discretionary contribution amount	$ 1,400	1,200	1,000
Employer mandatory contributions amount	$ 1,600	$ 1,400	$ 1,200
Annual vesting percentage, first year	0.00%
Annual vesting percentage, full year thereafter	25.00%
Benefit vesting period	5 years

Fair Value Measurements (Detail

Fair Value Measurements (Details)	12 Months Ended
	Dec. 31, 2019
Impaired Loans [Member]
Fair Value Measurements [Abstract]
Percentage of selling costs	10.00%
ORE [Member]
Fair Value Measurements [Abstract]
Percentage of selling costs	10.00%

Fair Value Measurements, Assets

Fair Value Measurements, Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		$ 507,386	$ 495,396
Transfer into Level 3		0
Transfer out of Level 3		0
Government Agency & Government-Sponsored Entities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale			3,039
US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		54,995	164,514
US Government Agency SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		10,798	15,447
Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale	[1]	441,078	307,045
Recurring [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		507,386	495,396
Recurring [Member] | Government Agency & Government-Sponsored Entities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale			3,039
Recurring [Member] | US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		54,995	164,514
Recurring [Member] | US Government Agency SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		10,798	15,447
Recurring [Member] | Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		441,078	307,045
Recurring [Member] | Other [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		515	5,351
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		55,200	164,716
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Government Agency & Government-Sponsored Entities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale			0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		54,995	164,514
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | US Government Agency SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Other [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		205	202
Recurring [Member] | Other Observable Inputs (Level 2) [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		452,186	325,841
Recurring [Member] | Other Observable Inputs (Level 2) [Member] | Government Agency & Government-Sponsored Entities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale			3,039
Recurring [Member] | Other Observable Inputs (Level 2) [Member] | US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0
Recurring [Member] | Other Observable Inputs (Level 2) [Member] | US Government Agency SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		10,798	15,447
Recurring [Member] | Other Observable Inputs (Level 2) [Member] | Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		441,078	307,045
Recurring [Member] | Other Observable Inputs (Level 2) [Member] | Other [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		310	310
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	4,839
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Government Agency & Government-Sponsored Entities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale			0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | US Government Agency SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		$ 0	$ 4,839
[1]	All Mortgage Backed Securities were issued by an agency or government sponsored entity of the U.S. government.

Fair Value Measurements, Asse_2

Fair Value Measurements, Assets or Liabilities Measured at Fair Value on a Non-recurring Basis (Details) - Nonrecurring [Member] - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	$ 5,751	$ 5,732
Other Real Estate	873	873
Total Assets Measured at Fair Value On a Non-Recurring Basis	6,624	6,605
Commercial Real Estate [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	2,588	2,658
Residential 1st Mortgages [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	1,403	1,550
Home Equity Lines and Loans [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	142	70
Agricultural [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	88
Commercial [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	1,391	1,454
Consumer [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	139
Real Estate Construction [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Other Real Estate	873	873
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	0
Other Real Estate	0	0
Total Assets Measured at Fair Value On a Non-Recurring Basis	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Commercial Real Estate [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Residential 1st Mortgages [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Home Equity Lines and Loans [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Agricultural [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Commercial [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Consumer [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Real Estate Construction [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Other Real Estate	0	0
Other Observable Inputs (Level 2) [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	0
Other Real Estate	0	0
Total Assets Measured at Fair Value On a Non-Recurring Basis	0	0
Other Observable Inputs (Level 2) [Member] | Commercial Real Estate [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	0
Other Observable Inputs (Level 2) [Member] | Residential 1st Mortgages [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	0
Other Observable Inputs (Level 2) [Member] | Home Equity Lines and Loans [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	0
Other Observable Inputs (Level 2) [Member] | Agricultural [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0
Other Observable Inputs (Level 2) [Member] | Commercial [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	0
Other Observable Inputs (Level 2) [Member] | Consumer [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0
Other Observable Inputs (Level 2) [Member] | Real Estate Construction [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Other Real Estate	0	0
Significant Unobservable Inputs (Level 3) [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	5,751	5,732
Other Real Estate	873	873
Total Assets Measured at Fair Value On a Non-Recurring Basis	6,624	6,605
Significant Unobservable Inputs (Level 3) [Member] | Commercial Real Estate [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	2,588	2,658
Significant Unobservable Inputs (Level 3) [Member] | Residential 1st Mortgages [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	1,403	1,550
Significant Unobservable Inputs (Level 3) [Member] | Home Equity Lines and Loans [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	142	70
Significant Unobservable Inputs (Level 3) [Member] | Agricultural [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	88
Significant Unobservable Inputs (Level 3) [Member] | Commercial [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	1,391	1,454
Significant Unobservable Inputs (Level 3) [Member] | Consumer [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	139
Significant Unobservable Inputs (Level 3) [Member] | Real Estate Construction [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Other Real Estate	$ 873	$ 873

Fair Value Measurements, Quanti

Fair Value Measurements, Quantitative Information (Details) $ in Thousands	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Level 3 [Member] | Commercial Real Estate [Member] | Income Approach [Member] | Capitalization Rate [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0330	0.0325
Level 3 [Member] | Residential 1st Mortgages [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member] | Minimum [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0080	0.01
Level 3 [Member] | Residential 1st Mortgages [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member] | Maximum [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0640	0.04
Level 3 [Member] | Residential 1st Mortgages [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0300	0.03
Level 3 [Member] | Home Equity Lines and Loans [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member] | Minimum [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0100	0.01
Level 3 [Member] | Home Equity Lines and Loans [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member] | Maximum [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0200	0.02
Level 3 [Member] | Home Equity Lines and Loans [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0130	0.02
Level 3 [Member] | Agricultural [Member] | Income Approach [Member] | Capitalization Rate [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0430
Level 3 [Member] | Commercial [Member] | Income Approach [Member] | Capitalization Rate [Member] | Minimum [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input		0.0295
Level 3 [Member] | Commercial [Member] | Income Approach [Member] | Capitalization Rate [Member] | Maximum [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input		0.0870
Level 3 [Member] | Commercial [Member] | Income Approach [Member] | Capitalization Rate [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0330	0.0340
Level 3 [Member] | Consumer [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.4060
Level 3 [Member] | Real Estate Construction [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Other Real Estate Owned, Measurement Input	0.1000	0.1
Nonrecurring [Member]
Quantitative Information [Abstract]
Impaired Loans	$ 5,751	$ 5,732
Other Real Estate	873	873
Nonrecurring [Member] | Commercial Real Estate [Member]
Quantitative Information [Abstract]
Impaired Loans	2,588	2,658
Nonrecurring [Member] | Residential 1st Mortgages [Member]
Quantitative Information [Abstract]
Impaired Loans	1,403	1,550
Nonrecurring [Member] | Home Equity Lines and Loans [Member]
Quantitative Information [Abstract]
Impaired Loans	142	70
Nonrecurring [Member] | Agricultural [Member]
Quantitative Information [Abstract]
Impaired Loans	88
Nonrecurring [Member] | Commercial [Member]
Quantitative Information [Abstract]
Impaired Loans	1,391	1,454
Nonrecurring [Member] | Consumer [Member]
Quantitative Information [Abstract]
Impaired Loans	139
Nonrecurring [Member] | Real Estate Construction [Member]
Quantitative Information [Abstract]
Other Real Estate	873	873
Nonrecurring [Member] | Level 3 [Member]
Quantitative Information [Abstract]
Impaired Loans	5,751	5,732
Other Real Estate	873	873
Nonrecurring [Member] | Level 3 [Member] | Commercial Real Estate [Member]
Quantitative Information [Abstract]
Impaired Loans	2,588	2,658
Nonrecurring [Member] | Level 3 [Member] | Residential 1st Mortgages [Member]
Quantitative Information [Abstract]
Impaired Loans	1,403	1,550
Nonrecurring [Member] | Level 3 [Member] | Home Equity Lines and Loans [Member]
Quantitative Information [Abstract]
Impaired Loans	142	70
Nonrecurring [Member] | Level 3 [Member] | Agricultural [Member]
Quantitative Information [Abstract]
Impaired Loans	88
Nonrecurring [Member] | Level 3 [Member] | Commercial [Member]
Quantitative Information [Abstract]
Impaired Loans	1,391	1,454
Nonrecurring [Member] | Level 3 [Member] | Consumer [Member]
Quantitative Information [Abstract]
Impaired Loans	139
Nonrecurring [Member] | Level 3 [Member] | Real Estate Construction [Member]
Quantitative Information [Abstract]
Other Real Estate	$ 873	$ 873

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets [Abstract]
Investment Securities Available-for-Sale	$ 507,386	$ 495,396
Carrying Amount [Member]
Assets [Abstract]
Cash and Cash Equivalents	294,758	145,564
Investment Securities Available-for-Sale	507,386	495,396
Investment Securities Held-to-Maturity	60,229	53,566
Loans & Leases, Net of Deferred Fees & Allowance	2,618,015	2,515,975
Accrued Interest Receivable	16,733	14,098
Liabilities [Abstract]
Deposits	3,278,019	3,062,832
Subordinated Debentures	10,310	10,310
Accrued Interest Payable	2,795	1,365
Estimated Fair Value [Member]
Assets [Abstract]
Cash and Cash Equivalents	294,758	145,564
Investment Securities Available-for-Sale	507,386	495,396
Investment Securities Held-to-Maturity	61,097	53,738
Loans & Leases, Net of Deferred Fees & Allowance	2,584,805	2,485,182
Accrued Interest Receivable	16,733	14,098
Liabilities [Abstract]
Deposits	3,277,269	3,058,571
Subordinated Debentures	7,325	7,745
Accrued Interest Payable	2,795	1,365
Estimated Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Cash and Cash Equivalents	294,758	145,564
Investment Securities Available-for-Sale	55,200	164,716
Investment Securities Held-to-Maturity	0	0
Loans & Leases, Net of Deferred Fees & Allowance	0	0
Accrued Interest Receivable	0	0
Liabilities [Abstract]
Deposits	2,760,097	2,572,805
Subordinated Debentures	0	0
Accrued Interest Payable	0	0
Estimated Fair Value [Member] | Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Cash and Cash Equivalents	0	0
Investment Securities Available-for-Sale	452,186	325,841
Investment Securities Held-to-Maturity	31,253	35,083
Loans & Leases, Net of Deferred Fees & Allowance	0	0
Accrued Interest Receivable	16,733	14,098
Liabilities [Abstract]
Deposits	517,172	485,766
Subordinated Debentures	7,325	7,745
Accrued Interest Payable	2,795	1,365
Estimated Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Cash and Cash Equivalents	0	0
Investment Securities Available-for-Sale	0	4,839
Investment Securities Held-to-Maturity	29,844	18,655
Loans & Leases, Net of Deferred Fees & Allowance	2,584,805	2,485,182
Accrued Interest Receivable	0	0
Liabilities [Abstract]
Deposits	0	0
Subordinated Debentures	0	0
Accrued Interest Payable	$ 0	$ 0

Commitments and Contingencies_2

Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Commitments to Extend Credit [Member]
Off Balance Sheet Commitments [Abstract]
Off-balance sheet risks, amount, liability	$ 919,982	$ 828,539
Letters of Credit [Member]
Off Balance Sheet Commitments [Abstract]
Off-balance sheet risks, amount, liability	$ 20,346	19,108
Letters of Credit [Member] | Minimum [Member]
Off Balance Sheet Commitments [Abstract]
Off balance sheet risks maturity period	1 month
Letters of Credit [Member] | Maximum [Member]
Off Balance Sheet Commitments [Abstract]
Off balance sheet risks maturity period	25 months
Performance Guarantees under Interest Rate Swap Contracts Entered into between our Borrowing Customers and Third Parties [Member]
Off Balance Sheet Commitments [Abstract]
Off-balance sheet risks, amount, liability	$ 1,513	$ 0

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating Leases [Abstract]
Operating lease ROU assets	$ 4,980
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets
Operating lease liability	$ 5,030
Operating Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilities	us-gaap:OtherLiabilities
Operating lease cost	$ 836
Minimum [Member]
Operating Leases [Abstract]
Remaining lease term	1 year
Lease extension option term	5 years
Maximum [Member]
Operating Leases [Abstract]
Remaining lease term	10 years
Lease extension option term	10 years

Leases, Information Related to

Leases, Information Related to Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash Paid for Amounts Included in the Measurement of Lease Liabilities [Abstract]
Operating Cash Flow from Operating Leases	$ 783
Right-of-Use Assets Obtained in Exchange for New Operating Lease Liabilities	$ 5,645	$ 0	$ 0
Weighted-Average Remaining Lease Term - Operating Leases	7 years 10 months 17 days
Weighted-Average Discount Rate - Operating Leases	3.20%

Leases, Maturity of Remaining L

Leases, Maturity of Remaining Lease Liability (Details) $ in Thousands	Dec. 31, 2019USD ($)
Maturity of Remaining Lease Liability [Abstract]
2020	$ 795
2021	719
2022	686
2023	697
2024	707
2025 and thereafter	2,105
Total Lease Payments	5,709
Less: Interest	(679)
Present Value of Lease Liabilities	$ 5,030

Leases, Lessor - Direct Financi

Leases, Lessor - Direct Financing Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Lessor - Direct Financing Leases [Abstract]
Net investment in direct financing leases	$ 105,400	$ 107,300
Minimum [Member]
Lessor - Direct Financing Leases [Abstract]
Term of direct financing leases	3 years
Maximum [Member]
Lessor - Direct Financing Leases [Abstract]
Term of direct financing leases	10 years

Recent Accounting Pronounceme_3

Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Recently Adopted Accounting Guidance [Abstract]
Operating lease ROU assets	$ 4,980
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets
Operating lease liability	$ 5,030
Operating Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilities	us-gaap:OtherLiabilities
Corporate income tax rate	21.00%	21.00%	35.00%
Net reclassification between AOCI and retained earnings			$ 0
Retained Earnings [Member]
Recently Adopted Accounting Guidance [Abstract]
Net reclassification between AOCI and retained earnings			144
AOCI [Member]
Recently Adopted Accounting Guidance [Abstract]
Net reclassification between AOCI and retained earnings			(144)
Accounting Standards Update 2018-02 [Member]
Recently Adopted Accounting Guidance [Abstract]
Operating lease ROU assets		$ 4,730
Operating lease liability		$ 4,730
Accounting Standards Update 2018-02 [Member] | Retained Earnings [Member]
Recently Adopted Accounting Guidance [Abstract]
Net reclassification between AOCI and retained earnings			144
Accounting Standards Update 2018-02 [Member] | AOCI [Member]
Recently Adopted Accounting Guidance [Abstract]
Net reclassification between AOCI and retained earnings			$ (144)

Parent Company Financial Info_3

Parent Company Financial Information, Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Balance Sheets [Abstract]
Investment Securities	$ 567,615	$ 548,962
Total Assets	3,721,830	3,434,243
Subordinated Debentures	10,310	10,310
Liabilities	3,352,534	3,123,028
Shareholders' Equity	369,296	311,215	$ 299,660	$ 279,981
Total Liabilities and Shareholders' Equity	3,721,830	3,434,243
Parent Company [Member]
Condensed Balance Sheets [Abstract]
Cash	1,341	335	$ 332	$ 228
Investment in Farmers & Merchants Bank of Central California	378,271	321,134
Investment Securities	411	409
us-gaap_OtherAssets	102	(57)
Total Assets	380,125	321,821
Subordinated Debentures	10,310	10,310
Liabilities	519	296
Shareholders' Equity	369,296	311,215
Total Liabilities and Shareholders' Equity	$ 380,125	$ 321,821

Parent Company Financial Info_4

Parent Company Financial Information, Condensed Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Statements of Income [Abstract]
Interest Income	$ 35,654	$ 35,280	$ 35,373	$ 34,207	$ 34,188	$ 31,908	$ 30,501	$ 28,906	$ 140,514	$ 125,503	$ 108,323
Tax Benefit	(5,037)	(4,660)	(4,903)	(4,677)	(4,258)	(2,995)	(3,589)	(3,361)	(19,277)	(14,203)	(26,111)
Net Income	$ 14,644	$ 13,738	$ 14,105	$ 13,549	$ 13,036	$ 12,000	$ 10,550	$ 9,941	56,036	45,527	28,370
Parent Company [Member]
Condensed Statements of Income [Abstract]
Equity (Loss) in Undistributed Earnings in Farmers & Merchants Bank of Central California									44,571	(26,488)	5,575
Dividends from Subsidiary									13,166	73,010	23,575
Interest Income									17	16	13
Other Expenses, Net									(2,416)	(1,527)	(1,552)
Tax Benefit									698	516	759
Net Income									$ 56,036	$ 45,527	$ 28,370

Parent Company Financial Info_5

Parent Company Financial Information, Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash Flows from Operating Activities [Abstract]
Net Income	$ 14,644	$ 13,738	$ 14,105	$ 13,549	$ 13,036	$ 12,000	$ 10,550	$ 9,941	$ 56,036	$ 45,527	$ 28,370
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities [Abstract]
Net Cash Provided by Operating Activities									80,858	57,774	39,944
Investing Activities [Abstract]
Net Cash Used in Investing Activities									(135,630)	(205,089)	(82,190)
Financing Activities [Abstract]
Stock Repurchased									0	(31,152)	0
Cash Dividends									(11,221)	(11,151)	(10,982)
Net Cash Provided by Financing Activities									203,966	105,730	130,535
Net Change in Cash and Cash Equivalents									149,194	(41,585)	88,289
Parent Company [Member]
Cash Flows from Operating Activities [Abstract]
Net Income									56,036	45,527	28,370
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities [Abstract]
(Equity) Loss in Undistributed Net Earnings from Subsidiary									(44,571)	26,488	(5,575)
Net (Increase) in Other Assets									(160)	(125)	(11,822)
Net Increase (Decrease) in Liabilities									222	(942)	112
Net Cash Provided by Operating Activities									11,527	70,948	11,085
Investing Activities [Abstract]
Securities Sold or Matured									0	0	1
Payments for Business Acquisition									0	(28,642)	0
Payments for Investments in Subsidiaries									(6,273)	(10,503)	(2,953)
Net Cash Used in Investing Activities									(6,273)	(39,145)	(2,952)
Financing Activities [Abstract]
Stock Repurchased									0	(31,152)	0
Issuance of Common Stock									6,973	10,503	2,953
Cash Dividends									(11,221)	(11,151)	(10,982)
Net Cash Provided by Financing Activities									(4,248)	(31,800)	(8,029)
Net Change in Cash and Cash Equivalents									1,006	3	104
Cash and Cash Equivalents at Beginning of Year				$ 335				$ 332	335	332	228
Cash and Cash Equivalents at End of Year	$ 1,341				$ 335				$ 1,341	$ 335	$ 332

Quarterly Unaudited Financial_3

Quarterly Unaudited Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Unaudited Financial Data [Abstract]
Total Interest Income	$ 39,099	$ 38,810	$ 38,626	$ 37,173	$ 36,799	$ 34,065	$ 32,161	$ 30,428	$ 153,708	$ 133,453	$ 114,612
Total Interest Expense	3,445	3,530	3,253	2,966	2,611	2,157	1,660	1,522	13,194	7,950	6,289
Net Interest Income	35,654	35,280	35,373	34,207	34,188	31,908	30,501	28,906	140,514	125,503	108,323
Provision for Credit Losses	0	0	200	0	2,200	2,500	500	333	200	5,533	2,850
Net Interest Income After Provision for Loan Losses	35,654	35,280	35,173	34,207	31,988	29,408	30,001	28,573	140,314	119,970	105,473
Total Non-Interest Income	4,403	3,974	4,400	4,464	4,063	4,208	2,283	4,665	17,241	15,219	16,762
Total Non-Interest Expense	20,376	20,856	20,565	20,445	18,757	18,621	18,145	19,936	82,242	75,459	67,754
Income Before Income Taxes	19,681	18,398	19,008	18,226	17,294	14,995	14,139	13,302	75,313	59,730	54,481
Provision for Income Taxes	5,037	4,660	4,903	4,677	4,258	2,995	3,589	3,361	19,277	14,203	26,111
Net Income	$ 14,644	$ 13,738	$ 14,105	$ 13,549	$ 13,036	$ 12,000	$ 10,550	$ 9,941	$ 56,036	$ 45,527	$ 28,370
Basic Earnings Per Common Share (in dollars per share)	$ 18.54	$ 17.45	$ 17.92	$ 17.27	$ 16.56	$ 15.12	$ 12.90	$ 12.24	$ 71.18	$ 56.82	$ 35.03

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event [Member]	Jan. 10, 2020$ / sharesshares
Stock Issued [Abstract]
Shares issued to non-qualified defined contribution retirement plans (in shares) | shares	523
Share price of shares issued (in dollars per share) | $ / shares	$ 770