Farmers & Merchants Bancorp (FMCB) 10-Q 9 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	May 03, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	FARMERS & MERCHANTS BANCORP
Entity Central Index Key	0001085913
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Ex Transition Period	false
Entity Common Stock, Shares Outstanding		787,307
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Cash and Cash Equivalents:
Cash and Due from Banks	$ 54,444	$ 61,058	$ 37,974
Interest Bearing Deposits with Banks	43,366	84,506	97,010
Total Cash and Cash Equivalents	97,810	145,564	134,984
Investment Securities:
Available-for-Sale	491,289	495,396	495,814
Held-to-Maturity	54,412	53,566	53,527
Total Investment Securities	545,701	548,962	549,341
Loans & Leases:	2,563,968	2,571,241	2,235,083
Less: Allowance for Credit Losses	54,907	55,266	50,677
Loans & Leases, Net	2,509,061	2,515,975	2,184,406
Premises and Equipment, Net	32,380	32,623	28,491
Bank Owned Life Insurance	65,609	65,117	60,035
Interest Receivable and Other Assets	145,354	126,002	102,726
Total Assets	3,395,915	3,434,243	3,059,983
Deposits:
Demand	915,164	974,756	797,435
Interest Bearing Transaction	655,117	694,384	589,883
Savings and Money Market	912,977	903,665	831,324
Time	524,782	490,027	482,763
Total Deposits	3,008,040	3,062,832	2,701,405
Subordinated Debentures	10,310	10,310	10,310
Interest Payable and Other Liabilities	47,247	49,886	42,392
Total Liabilities	3,065,597	3,123,028	2,754,107
Shareholders' Equity
Preferred Stock: No Par Value, 1,000,000 Shares Authorized, None Issued or Outstanding	0	0	0
Common Stock: Par Value $0.01, 7,500,000 Shares Authorized, 787,307, 783,721 and 812,304, Shares Issued and Outstanding at March 31, 2019, December 31, 2018 and March 31, 2018, Respectively	8	8	8
Additional Paid-In Capital	75,538	72,974	93,624
Retained Earnings	254,770	241,221	216,786
Accumulated Other Comprehensive Loss	2	(2,988)	(4,542)
Total Shareholders' Equity	330,318	311,215	305,876
Total Liabilities and Shareholders' Equity	$ 3,395,915	$ 3,434,243	$ 3,059,983

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Shareholders' Equity
Preferred Stock, par value (in dollars per share)	$ 0	$ 0	$ 0
Preferred Stock, shares authorized (in shares)	1,000,000	1,000,000	1,000,000
Preferred Stock, shares issued (in shares)	0	0	0
Preferred Stock, shares outstanding (in shares)	0	0	0
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Common Stock, shares authorized (in shares)	7,500,000	7,500,000	7,500,000
Common Stock, shares issued (in shares)	787,307	783,721	812,304
Common Stock, shares outstanding (in shares)	787,307	783,721	812,304

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest Income
Interest and Fees on Loans & Leases	$ 33,177	$ 27,044
Interest on Deposits with Banks	1,125	585
Interest on Investment Securities:
Taxable	2,427	2,381
Exempt from Federal Tax	444	418
Total Interest Income	37,173	30,428
Interest Expense
Deposits	2,821	1,405
Subordinated Debentures	145	117
Total Interest Expense	2,966	1,522
Net Interest Income	34,207	28,906
Provision for Credit Losses	0	333
Net Interest Income After Provision for Credit Losses	34,207	28,573
Non-Interest Income
Service Charges on Deposit Accounts	876	817
Increase in Cash Surrender Value of Life Insurance	492	452
Debit Card and ATM Fees	1,177	1,016
Net Gain on Deferred Compensation Investments	1,045	782
Other	874	1,598
Total Non-Interest Income	4,464	4,665
Non-Interest Expense
Salaries and Employee Benefits	13,424	13,527
Net Gain on Deferred Compensation Investments	1,045	782
Occupancy	1,040	942
Equipment	1,177	1,023
Marketing	380	329
Legal	869	440
FDIC Insurance	241	239
Other	2,269	2,654
Total Non-Interest Expense	20,445	19,936
Income Before Income Taxes	18,226	13,302
Provision for Income Taxes	4,677	3,361
Net Income	$ 13,549	$ 9,941
Basic and Diluted Earnings Per Common Share (in dollars per share)	$ 17.27	$ 12.24

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]
Net Income	$ 13,549	$ 9,941
Other Comprehensive Income
Increase in Net Unrealized Gain (Loss) on Available-for-Sale Securities	4,246	(5,288)
Deferred Tax (Expense) Benefit Related to Unrealized (Gains) Losses	(1,256)	1,563
Change in Net Unrealized Gain (Loss) on Available-for-Sale Securities, Net of Tax	2,990	(3,725)
Total Other Comprehensive Income (Loss)	2,990	(3,725)
Comprehensive Income	$ 16,539	$ 6,216

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss, Net [Member]	Total
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		0	9,941	0	9,941
Change in Net Unrealized Gain (Loss) on Securities Available-for-Sale, net of tax	$ 0	0	0	(3,725)	(3,725)
Balance at Mar. 31, 2018	$ 8	93,624	216,786	(4,542)	$ 305,876
Balance (in shares) at Mar. 31, 2018	812,304				812,304
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		0	13,549	0	$ 13,549
Issuance of Common Stock	$ 0	2,564	0	0	2,564
Issuance of Common Stock (in shares)	3,586
Change in Net Unrealized Gain (Loss) on Securities Available-for-Sale, net of tax	$ 0	0	0	2,990	2,990
Balance at Mar. 31, 2019	$ 8	$ 75,538	$ 254,770	$ 2	$ 330,318
Balance (in shares) at Mar. 31, 2019	787,307				787,307

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Operating Activities:
Net Income	$ 13,549	$ 9,941
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Credit Losses	0	333	$ 5,533
Depreciation and Amortization	692	582
Net Amortization of Investment Security Premiums & Discounts	115	277
Amortization of Core Deposit Intangible	160	27
Accretion of Discount on Acquired Loans	(5)	(18)
Net (Gain) on Sale of Property & Equipment	0	(292)
Net Change in Operating Assets & Liabilities:
Net (Increase) Decrease in Interest Receivable and Other Assets	6,456	(2,525)
Net (Decrease) Increase in Interest Payable and Other Liabilities	(2,080)	682
Net Cash Provided by Operating Activities	18,887	9,007
Investing Activities:
Purchase of Investment Securities Available-for-Sale	(155,798)	(109,482)
Proceeds from Sold, Matured or Called Securities Available-for-Sale	138,952	89,724
Purchase of Investment Securities Held-to-Maturity	(2,025)	(1,952)
Proceeds from Matured or Called Securities Held-to-Maturity	1,160	2,870
Net Loans & Leases Paid, Originated or Acquired	6,877
Net Loans & Leases Paid, Originated or Acquired		(19,791)
Principal Collected on Loans & Leases Previously Charged Off	42	23
Additions to Premises and Equipment	(449)	(1,085)
Purchase of Other Investments	(608)	(639)
Proceeds from Sale of Property & Equipment	0	983
Net Cash Used in Investing Activities	(11,849)	(39,349)
Financing Activities:
Net Decrease in Deposits	(54,792)	(21,823)
Net Cash Used in Financing Activities	(54,792)	(21,823)
Decrease in Cash and Cash Equivalents	(47,754)	(52,165)
Cash and Cash Equivalents at Beginning of Period	145,564	187,149	187,149
Cash and Cash Equivalents at End of Period	97,810	134,984	$ 145,564
Supplementary Data
Issuance of Common Stock to the Bank's Non-Qualified Retirement Plans	2,564	0
Interest Paid	2,128	1,750
Supplementary Noncash Disclosure
Security (purchases) sales settled in subsequent period	$ 25,000	$ 0

Significant Accounting Policies

Significant Accounting Policies	3 Months Ended
	Mar. 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. At the effective time of the acquisition, Bank of Rio Vista was merged into Farmers & Merchants Bank of Central California. On November 18, 2016, Farmers & Merchants Bancorp completed the acquisition of Delta National Bancorp, headquartered in Manteca, California, and the parent holding company for Delta Bank N.A., a locally owned and operated community bank established in 1973. As of the acquisition date, Delta National Bancorp had approximately $112 million in assets and four branch locations in the communities of Manteca, Riverbank, Modesto and Turlock. At the effective time of the acquisition, Delta National Bancorp was merged into Farmers & Merchants Bancorp and Delta Bank, N.A. 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. See “Financial Condition – Critical Accounting Policies and Estimates” in the Company’s 2018 Annual Report to Shareholders on Form 10-K. 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 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 ASU’s package of three practical expedients, which allowed the Company to forego a reassessment of (i) whether any expired or existing contracts contain leases, (ii) the lease classification for any expired or existing leases and (iii) the initial direct costs for any existing leases. 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 on the consolidated statements of condition as a right-of-use asset and a 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 7 – “Leases” for additional information. 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, Federal Funds Sold which have 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. Securities Sold Under Agreement to Repurchase Securities Sold Under Agreement to Repurchase are used as secured borrowing alternatives to FHLB Advances or FRB Borrowings. 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 low inherent risk of loss, although this is not always true as evidenced by the correction in residential real estate values that occurred between 2007 and 2012. 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. See Note 8 “Recent Accounting Pronouncements” for a discussion of ASU 2016-13 and the accounting changes which will impact our allowance for credit losses in 2020. 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 tax 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 March 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. 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, basic and diluted earnings per common share are reflected as the same amounts. See Note 6 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 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, 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 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. The Company applied this guidance to the acquisition of Bank of Rio Vista (BRV) which was consummated on October 10, 2018. The Company's consolidated financial statements reflect the operations of Bank of Rio Vista beginning October 11, 2

Investment Securities

Investment Securities	3 Months Ended
	Mar. 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 March 31, 2019 Cost Gains Losses Value Government Agency & Government-Sponsored Entities $ 3,021 $ 6 $ - $ 3,027 US Treasury Notes 164,660 48 34 164,674 US Govt SBA 14,554 5 147 14,412 Mortgage Backed Securities (1) 303,895 1,764 1,639 304,020 Other 5,156 - - 5,156 Total $ 491,286 $ 1,823 $ 1,820 $ 491,289 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 Amortized Gross Unrealized Fair/Book March 31, 2018 Cost Gains Losses Value Government Agency & Government-Sponsored Entities $ 3,068 $ 27 $ - $ 3,095 US Treasury Notes 144,147 3 741 143,409 US Govt SBA 27,786 12 261 27,537 Mortgage Backed Securities (1) 324,251 393 5,881 318,763 Other 3,010 - - 3,010 Total $ 502,262 $ 435 $ 6,883 $ 495,814 (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 March 31, 2019 Value Gains Losses Value Obligations of States and Political Subdivisions $ 54,412 $ 571 $ 1 $ 54,982 Total $ 54,412 $ 571 $ 1 $ 54,982 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 Book Gross Unrealized Fair March 31, 2018 Value Gains Losses Value Obligations of States and Political Subdivisions $ 53,527 $ 274 $ 56 $ 53,745 Total $ 53,527 $ 274 $ 56 $ 53,745 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 March 31, 2019 by contractual maturity are shown in the following table (in thousands): Available-for-Sale Held-to-Maturity March 31, 2019 Amortized Cost Fair/Book Value Book Value Fair Value Within one year $ 156,785 $ 156,762 $ 760 $ 761 After one year through five years 16,814 16,856 3,329 3,330 After five years through ten years 1,387 1,386 24,797 25,189 After ten years 12,405 12,265 25,526 25,702 187,391 187,269 54,412 54,982 Investment securities not due at a single maturity date: Mortgage-backed securities 303,895 304,020 - - Total $ 491,286 $ 491,289 $ 54,412 $ 54,982 Expected maturities of mortgage-backed securities may differ from contractual maturities because borrowers may 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 March 31, 2019 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Securities Available-for-Sale US Treasury Notes $ 149,962 $ 28 $ 4,909 $ 6 $ 154,871 $ 34 US Govt SBA 1,310 - 10,823 147 12,133 147 Mortgage Backed Securities 5,434 25 190,452 1,614 195,886 1,639 Total $ 156,706 $ 53 $ 206,184 $ 1,767 $ 362,890 $ 1,820 Securities Held-to-Maturity Obligations of States and Political Subdivisions $ 229 $ 1 $ 360 $ - $ 589 $ 1 Total $ 229 $ 1 $ 360 $ - $ 589 $ 1 Less Than 12 Months 12 Months or More Total December 31, 2018 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss 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 Less Than 12 Months 12 Months or More Total March 31, 2018 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Securities Available-for-Sale US Treasury Notes $ 23,551 $ 436 $ 59,866 $ 305 $ 83,417 $ 741 US Govt SBA 10,848 82 11,737 179 22,585 261 Mortgage Backed Securities 259,314 4,606 41,230 1,275 300,544 5,881 Total $ 293,713 $ 5,124 $ 112,833 $ 1,759 $ 406,546 $ 6,883 Securities Held-to-Maturity Obligations of States and Political Subdivisions $ 7,654 $ 56 $ - $ - $ 7,654 $ 56 Total $ 7,654 $ 56 $ - $ - $ 7,654 $ 56 As of March 31, 2019, the Company held 588 investment securities of which 26 were in an unrealized loss position for less than twelve months. 133 securities were in an unrealized 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 obligations of states and political subdivisions were $1,000, $39,000 and $56,000 at March 31, 2019, December 31, 2018 and March 31, 2018, respectively. Management believes that any unrealized losses on the Company's investments in obligations of states and political subdivisions were primarily 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 will not have to sell the securities before recovery of their cost basis, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2019, December 31, 2018, and March 31, 2018. There were no proceeds from sales and calls of securities for the period ending March 31, 2019 and March 31, 2018. Pledged Securities As of March 31, 2019, securities carried at $262.1 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, and $245.4 million at March 31, 2018.

Loans & Leases and Allowance fo

Loans & Leases and Allowance for Credit Losses	3 Months Ended
	Mar. 31, 2019
Loans & Leases and Allowance for Credit Losses [Abstract]
Loans & Leases and Allowance for Credit Losses	3. Loans & Leases and Allowance for Credit Losses The following tables show the allocation of the allowance for credit losses by portfolio segment and by impairment methodology at the dates indicated (in thousands) March 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 - - - - - - (379 ) (21 ) - - (400 ) Recoveries - - - 3 6 6 12 14 - - 41 Provision (209 ) 401 (42 ) (20 ) (29 ) (800 ) 644 (20 ) (14 ) 89 - Ending Balance- March 31, 2019 $ 11,400 $ 14,493 $ 1,207 $ 863 $ 2,738 $ 7,448 $ 11,933 $ 467 $ 4,008 $ 350 $ 54,907 Ending Balance Individually Evaluated for Impairment 214 - - 124 13 98 172 6 - - 627 Ending Balance Collectively Evaluated for Impairment 11,186 14,493 1,207 739 2,725 7,350 11,761 461 4,008 350 54,280 Loans: Ending Balance $ 815,366 $ 603,601 $ 99,837 $ 258,359 $ 40,072 $ 257,004 $ 364,439 $ 18,418 $ 106,872 $ - $ 2,563,968 Ending Balance Individually Evaluated for Impairment 4,638 7,238 - 2,469 255 200 1,591 6 - - 16,397 Ending Balance Collectively Evaluated for Impairment $ 810,728 $ 596,363 $ 99,837 $ 255,890 $ 39,817 $ 256,804 $ 362,848 $ 18,412 $ 106,872 $ - $ 2,547,571 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 March 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 - - - - (4 ) - - (17 ) - - (21 ) Recoveries - - - 3 1 6 2 11 - - 23 Provision 156 157 27 9 22 (297 ) 175 36 27 21 333 Ending Balance- March 31, 2018 $ 11,078 $ 12,242 $ 1,873 $ 827 $ 2,343 $ 7,868 $ 9,374 $ 239 $ 3,390 $ 1,443 $ 50,677 Ending Balance Individually Evaluated for Impairment 335 - - 76 17 - 205 8 - - 641 Ending Balance Collectively Evaluated for Impairment 10,743 12,242 1,873 751 2,326 7,868 9,169 231 3,390 1,443 50,036 Loans: Ending Balance $ 698,349 $ 508,400 $ 96,315 $ 264,137 $ 34,691 $ 261,427 $ 274,682 $ 6,685 $ 90,397 $ - $ 2,235,083 Ending Balance Individually Evaluated for Impairment 4,784 - - 2,427 332 - 1,713 9 - - 9,265 Ending Balance Collectively Evaluated for Impairment $ 693,565 $ 508,400 $ 96,315 $ 261,710 $ 34,359 $ 261,427 $ 272,969 $ 6,676 $ 90,397 $ - $ 2,225,818 The ending balance of loans individually evaluated for impairment includes restructured loans in the amount of $2.7 million at March 31, 2019, $2.8 million at December 31, 2018 and $2.9 million at March 31, 2018, which are no longer classified as TDRs. The following tables show the loan & lease portfolio allocated by management’s internal risk ratings at the dates indicated (in thousands) March 31, 2019 Pass Special Mention Substandard Total Loans & Leases Loans & Leases: Commercial Real Estate $ 813,090 $ 2,276 $ - $ 815,366 Agricultural Real Estate 587,444 2,847 13,310 603,601 Real Estate Construction 99,837 - - 99,837 Residential 1st Mortgages 257,878 - 481 258,359 Home Equity Lines & Loans 40,028 - 44 40,072 Agricultural 250,630 6,167 207 257,004 Commercial 360,525 2,983 931 364,439 Consumer & Other 18,263 - 155 18,418 Leases 106,872 - - 106,872 Total $ 2,534,567 $ 14,273 $ 15,128 $ 2,563,968 December 31, 2018 Pass Special 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 March 31, 2018 Pass Special Mention Substandard Total Loans & Leases Loans & Leases: Commercial Real Estate $ 691,537 $ 6,812 $ - $ 698,349 Agricultural Real Estate 495,936 8,537 3,927 508,400 Real Estate Construction 86,779 9,536 - 96,315 Residential 1st Mortgages 263,101 - 1,036 264,137 Home Equity Lines & Loans 34,643 - 48 34,691 Agricultural 252,553 6,286 2,588 261,427 Commercial 268,745 5,460 477 274,682 Consumer & Other 6,565 - 120 6,685 Leases 88,320 2,077 - 90,397 Total $ 2,188,179 $ 38,708 $ 8,196 $ 2,235,083 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 or leases outstanding at March 31, 2019, December 31, 2018, and March 31, 2018, rated doubtful or loss. The following tables show an aging analysis of the loan & lease portfolio by the time past due at the dates indicated (in thousands) March 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 $ - $ - $ - $ - $ - $ 815,366 $ 815,366 Agricultural Real Estate - - - - - 603,601 603,601 Real Estate Construction - - - - - 99,837 99,837 Residential 1st Mortgages 707 - - - 707 257,652 258,359 Home Equity Lines & Loans - - - - - 40,072 40,072 Agricultural - - - - - 257,004 257,004 Commercial - - - - - 364,439 364,439 Consumer & Other 20 - - - 20 18,398 18,418 Leases - - - - - 106,872 106,872 Total $ 727 $ - $ - $ - $ 727 $ 2,563,241 $ 2,563,968 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 March 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 $ - $ - $ - $ - $ - $ 698,349 $ 698,349 Agricultural Real Estate - - - - - 508,400 508,400 Real Estate Construction - - - - - 96,315 96,315 Residential 1st Mortgages 14 49 - 81 144 263,993 264,137 Home Equity Lines & Loans 20 - - - 20 34,671 34,691 Agricultural - - - - - 261,427 261,427 Commercial - 14 - - 14 274,668 274,682 Consumer & Other 8 - - - 8 6,677 6,685 Leases - - - - - 90,397 90,397 Total $ 42 $ 63 $ - $ 81 $ 186 $ 2,234,897 $ 2,235,083 The following tables show information related to impaired loans & leases for the periods indicated (in thousands) March 31, 2019 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial Real Estate $ 93 $ 93 $ - $ 94 $ 2 Agricultural Real Estate 7,239 7,238 - 7,239 73 $ 7,332 $ 7,331 $ - $ 7,333 $ 75 With an allowance recorded: Commercial Real Estate $ 2,883 $ 2,875 $ 214 $ 2,893 $ 23 Residential 1st Mortgages 1,625 1,829 81 1,633 21 Home Equity Lines & Loans 73 83 4 74 1 Agricultural 201 200 98 101 - Commercial 1,596 1,590 172 1,620 14 Consumer & Other 6 7 6 6 - $ 6,384 $ 6,584 $ 575 $ 6,327 $ 59 Total $ 13,716 $ 13,915 $ 575 $ 13,660 $ 134 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 March 31, 2018 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial Real Estate $ 102 $ 102 $ - $ 103 $ 2 Residential 1st Mortgages 903 1,005 - 907 8 $ 1,005 $ 1,107 $ - $ 1,010 $ 10 With an allowance recorded: Commercial Real Estate $ 2,955 $ 2,943 $ 335 $ 2,964 $ 24 Residential 1st Mortgages 583 649 29 546 7 Home Equity Lines & Loans 78 88 4 76 1 Commercial 1,720 1,713 205 1,731 15 Consumer & Other 8 8 8 8 - $ 5,344 $ 5,401 $ 581 $ 5,325 $ 47 Total $ 6,349 $ 6,508 $ 581 $ 6,335 $ 57 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 at a market rate, are currently performing and are no longer disclosed or classified as TDR’s. At March 31, 2019, there were no formal foreclosure proceedings in process for consumer mortgage loans secured by residential real estate properties. At March 31, 2019, the Company allocated $575,000 of specific reserves to $13.7 million of troubled debt restructured loans & leases, all of which were performing. The Company had no commitments at March 31, 2019 to lend additional amounts to customers with outstanding loans or leases that are classified as TDRs. During the three-month period ended March 31, 2019, the terms of one loan was modified as a troubled debt restructuring. The modification involved a reduction of the stated interest rate of the loan for 5 years and an extension of the maturity date for 10 years. The following table presents loans or leases by class modified as TDRs during the three-month period ended March 31, 2019 (in thousands): March 31, 2019 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Agricultural 1 $ 201 $ 201 Total 1 $ 201 $ 201 The troubled debt restructurings described above increased the allowance for credit losses by $84,000 for the three months ended March 31, 2019. During the three months ended March 31, 2019, the twelve months ended December 31, 2018, and the three months ended March 31, 2018, there were no payment defaults on loans or leases modified as troubled debt restructurings within twelve months following the modification. The Company considers a loan or lease to be in payment default once it is greater than 90 days contractually past due under the modified terms. 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. At December 31, 2017, the Company allocated $623,000 of specific reserves to $6.3 million of troubled debt restructured loans, all of which were performing. The Company had no commitments at December 31, 2018 and December 31, 2017 to lend additional amounts to customers with outstanding loans that are classified as troubled debt restructurings. During the period ending 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 period ended December 31, 2018 (in thousands) December 31, 2018 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded 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. At March 31, 2018, the Company allocated $577,000 of specific reserves to $6.2 million of troubled debt restructured loans & leases, all of which were performing. The Company had no commitments at March 31, 2018 to lend additional amounts to customers with outstanding loans or leases that are classified as TDRs. During the three-month period ending March 31, 2018, there were no loans & leases modified as a troubled debt restructuring.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2019
Fair Value Measurements [Abstract]
Fair Value Measurements	4. 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 originated 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 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 March 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: Government Agency & Government-Sponsored Entities $ 3,027 $ - $ 3,027 $ - US Treasury Notes 164,674 164,674 - - US Govt SBA 14,412 - 14,412 - Mortgage Backed Securities 304,020 - 304,020 - Other 5,156 203 310 4,643 Total Assets Measured at Fair Value On a Recurring Basis $ 491,289 $ 164,877 $ 321,769 $ 4,643 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 Value Measurements At March 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 $ 3,095 $ - $ 3,095 $ - US Treasury Notes 143,409 143,409 - - US Govt SBA 27,537 - 27,537 - Mortgage Backed Securities 318,763 - 318,763 - Other 3,010 200 310 2,500 Total Assets Measured at Fair Value On a Recurring Basis $ 495,814 $ 143,609 $ 349,705 $ 2,500 Fair values for Level 2 available-for-sale investment securities are based on quoted market prices for similar securities. During the period ended March 31, 2019, there were no transfers in our out of level 1, 2, or 3. Certain equity securities, categorized as Level 3 assets as of March 31, 2019 consisted of: (1) $3.0 million in limited liability companies (LLC) that invest in CRA qualified SBA loans; (2) $1.4 million in registered warrants issued by California reclamation districts; and (3) $200,000 in The Independent Bankers’ Bank stock. These securities are not readily tradeable, and are carried at cost, plus/minus observable price changes, less impairment. The significant unobservable data reflected in the fair value measurement include dealer quotes, projected prepayment speeds/average lives and credit information. There were no gains, losses or transfers in or out of level 3 during the three-month period ended March 31, 2019. Level 3 Valuations The following table presents a reconciliation of the level 3 fair value category measured at fair value on a recurring basis: Net Realized / Unrealized Gains (Losses) (in thousands) Balance at Beginning of Period Purchases / Additions Sales / Reductions Realized Unrealized Balance at End of Period Three months ended March 31, 2019 Available-for-sale debt securities: $ 1,593 $ 479 $ 675 $ - $ - $ 1,397 Equity securities: $ 3,246 $ - $ - $ - $ - $ 3,246 Total $ 4,839 $ 479 $ 675 $ - $ - $ 4,643 The following tables present information about the Company’s other real estate and impaired loans or leases, 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 or leases are carried at fair value. Impaired loans or leases are only included in the following tables when their fair value is based upon a current 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 March 31, 2019, Using Fair Value Quoted Prices in Active Markets for Identical Assets Other Observable Inputs Significant Unobservable Inputs (in thousands) Total (Level 1) (Level 2) (Level 3) Impaired Loans Commercial Real Estate $ 2,660 $ - $ - $ 2,660 Residential 1st Mortgage 1,540 - - 1,540 Home Equity Lines and Loans 69 - - 69 Agricultural 102 - - 102 Commercial 1,418 - - 1,418 Total Impaired Loans 5,789 - - 5,789 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 $ 6,662 $ - $ - $ 6,662 Fair Value Measurements At December 31, 2018, Using Fair Value Quoted Prices in Active Markets for Identical Assets Other Observable Inputs Significant Unobservable Inputs (in thousands) Total (Level 1) (Level 2) (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 Fair Value Measurements At March 31, 2018, Using Fair Value Quoted Prices in Active Markets for Identical Assets Other Observable Inputs Significant Unobservable Inputs (in thousands) Total (Level 1) (Level 2) (Level 3) Impaired Loans Commercial Real Estate $ 2,608 $ - $ - $ 2,608 Residential 1st Mortgage 475 - - 475 Home Equity Lines and Loans 74 - - 74 Commercial 1,508 - - 1,508 Total Impaired Loans 4,665 - - 4,665 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 $ 5,538 $ - $ - $ 5,538 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 March 31, 2019: (in thousands) Fair Value Valuation Technique Unobservable Inputs Range, Weighted Avg. Impaired Loans Commercial Real Estate $ 2,660 Income Approach Capitalization Rate 3.25%, 3.25 % Residential 1st Mortgage $ 1,540 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 1% - 4%, 2.85 % Home Equity Lines and Loans $ 69 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 1% - 2%, 1.50 % Agricultural $ 102 Income Approach Capitalization Rate 5.10%, 5.10 % Commercial $ 1,418 Income Approach Capitalization Rate 3.25% - 8.70%, 3.40 % Other Real Estate Real Estate Construction $ 873 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 10%, 10 %

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2019
Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Instruments	5. 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. The estimated fair value amounts have been determined by the Company using available market information and appropriate valuation methodologies pursuant to ASC 820, Fair Value Measurements. 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 following tables summarize the book value and estimated fair value of financial instruments for the periods indicated: Fair Value of Financial Instruments Using March 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 $ 97,810 $ 97,810 $ - $ - $ 97,810 Investment Securities Available-for-Sale 491,289 164,877 321,769 4,643 491,289 Investment Securities Held-to-Maturity 54,412 - 36,705 18,276 54,981 Loans & Leases, Net of Deferred Fees & Allowance 2,509,061 - - 2,490,197 2,490,197 Accrued Interest Receivable 12,524 - 12,524 - 12,524 Liabilities: Deposits 3,008,040 2,483,258 521,321 - 3,004,579 Subordinated Debentures 10,310 - 7,600 - 7,600 Accrued Interest Payable 2,193 - 2,193 - 2,193 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 Fair Value of Financial Instruments Using March 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 $ 134,984 $ 134,984 $ - $ - $ 134,984 Investment Securities Available-for-Sale 495,814 143,609 349,705 2,500 495,814 Investment Securities Held-to-Maturity 53,527 - 37,028 16,717 53,745 Loans & Leases, Net of Deferred Fees & Allowance 2,184,406 - - 2,152,504 2,152,504 Accrued Interest Receivable 9,237 - 9,237 - 9,237 Liabilities: Deposits 2,701,405 2,218,642 478,846 - 2,697,488 Subordinated Debentures 10,310 - 7,751 - 7,751 Accrued Interest Payable 909 - 909 - 909

Dividends and Basic Earnings Pe

Dividends and Basic Earnings Per Common Share	3 Months Ended
	Mar. 31, 2019
Dividends and Basic Earnings Per Common Share [Abstract]
Dividends and Basic Earnings Per Common Share	6. Dividends and Basic Earnings Per Common Share Farmers & Merchants Bancorp common stock is not traded on any exchange. The shares are primarily held by local residents and are not actively traded. No cash dividends were declared during the first quarter of 2019 or 2018. 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 is the same amount as basic earnings per share. The following table calculates the basic earnings per common share for the three months ended March 31, 2019 and 2018. (net income in thousands) 2019 2018 Net Income $ 13,549 $ 9,941 Weighted Average Number of Common Shares Outstanding 784,438 812,304 Basic Earnings Per Common Share Amount $ 17.27 $ 12.24

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	7. Leases Lessee – Operating Leases Effective January 1, 2019, the Company adopted the provisions of Accounting Standards Update (ASU) No. 2016-02, “Leases (Topic 842),” (ASU 2016-02), 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 (ASC) 840, “Leases.” Operating leases in which we are the lessee are recorded as operating lease 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 in net 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 has elected to use data including the first option period, unless it is a relatively new lease that has a long initial lease term or other extenuating circumstances. As of March 31, 2019, operating lease ROU assets and liabilities were $4.55 million and $4.56 million, respectively. Operating leases that were in scope of ASU 2016-02 have a total cost of $207,000 at March 31, 2019. The table below summarizes the information related to our operating leases: (in thousands except for percent and period data) Three Months ended March 31, 2019 Cash Paid for Amounts Included in the Measurement of Lease Liabilities Operating Cash Flow from Operating Leases $ 196 Right-of-Use Assets Obtained in Exchange for New Operating Lease Liabilities 4,729 Weighted-Average Remaining Lease Term - Operating Leases, in Years 7.70 Weighted-Average Discount Rate - Operating Leases 2.8 % The table below summarizes the maturity of remaining lease liability: (in thousands) March 31, 2019 2019 $ 587 2020 792 2021 694 2022 548 2023 542 2024 and thereafter 1,916 Total Lease Payments 5,079 Less: Interest (515 ) Present Value of Lease Liabilities $ 4,564 As of March 31, 2019, we have no additional operating leases for office space that have not yet commenced or that are anticipated to commence during the second quarter of 2019. 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. The Company has made a policy election to exclude from consideration in contracts all collections from sales and other similar taxes due to immateriality. As a lessor, the Company leases certain types of agriculture equipment, solar equipment, construction equipment and other equipment to its customers. At March 31, 2019, the Company's net investment in direct financing leases was $106.9 million.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	3 Months Ended
	Mar. 31, 2019
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements	8. 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. 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 March 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, with early adoption permitted on January 1, 2019. The Company has selected a vendor to analyze our loan data and has chosen an implementation team. The Company is currently

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 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. See “Financial Condition – Critical Accounting Policies and Estimates” in the Company’s 2018 Annual Report to Shareholders on Form 10-K. 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 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 ASU’s package of three practical expedients, which allowed the Company to forego a reassessment of (i) whether any expired or existing contracts contain leases, (ii) the lease classification for any expired or existing leases and (iii) the initial direct costs for any existing leases. 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 on the consolidated statements of condition as a right-of-use asset and a 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 7 – “Leases” for additional information.
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, Federal Funds Sold which have 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.
Securities Sold Under Agreement to Repurchase	Securities Sold Under Agreement to Repurchase Securities Sold Under Agreement to Repurchase are used as secured borrowing alternatives to FHLB Advances or FRB Borrowings.
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 low inherent risk of loss, although this is not always true as evidenced by the correction in residential real estate values that occurred between 2007 and 2012. 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. See Note 8 “Recent Accounting Pronouncements” for a discussion of ASU 2016-13 and the accounting changes which will impact our allowance for credit losses in 2020.
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 tax 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 March 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. 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, basic and diluted earnings per common share are reflected as the same amounts. See Note 6 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. The Company applied this guidance to the acquisition of Bank of Rio Vista (BRV) which was consummated on October 10, 2018. The Company's consolidated financial statements reflect the operations of Bank of Rio Vista beginning October 11, 2018.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets (in thousands) 2019 2020 2021 2022 2023 Thereafter Total Core Deposit Intangible Amortization $ 480 $ 626 $ 611 $ 593 $ 573 $ 2,236 $ 5,119 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)	3 Months Ended
	Mar. 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. 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 March 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, with early adoption permitted on January 1, 2019. The Company has selected a vendor to analyze our loan data and has chosen an implementation team. The Company is currently

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2019
Significant Accounting Policies [Abstract]
Future Estimated Amortization Expense for CDI	At March 31, 2019, the future estimated amortization expense for the CDI arising from our past acquisitions is as follows: (in thousands) 2019 2020 2021 2022 2023 Thereafter Total Core Deposit Intangible Amortization $ 480 $ 626 $ 611 $ 593 $ 573 $ 2,236 $ 5,119

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 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 March 31, 2019 Cost Gains Losses Value Government Agency & Government-Sponsored Entities $ 3,021 $ 6 $ - $ 3,027 US Treasury Notes 164,660 48 34 164,674 US Govt SBA 14,554 5 147 14,412 Mortgage Backed Securities (1) 303,895 1,764 1,639 304,020 Other 5,156 - - 5,156 Total $ 491,286 $ 1,823 $ 1,820 $ 491,289 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 Amortized Gross Unrealized Fair/Book March 31, 2018 Cost Gains Losses Value Government Agency & Government-Sponsored Entities $ 3,068 $ 27 $ - $ 3,095 US Treasury Notes 144,147 3 741 143,409 US Govt SBA 27,786 12 261 27,537 Mortgage Backed Securities (1) 324,251 393 5,881 318,763 Other 3,010 - - 3,010 Total $ 502,262 $ 435 $ 6,883 $ 495,814 (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 March 31, 2019 Value Gains Losses Value Obligations of States and Political Subdivisions $ 54,412 $ 571 $ 1 $ 54,982 Total $ 54,412 $ 571 $ 1 $ 54,982 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 Book Gross Unrealized Fair March 31, 2018 Value Gains Losses Value Obligations of States and Political Subdivisions $ 53,527 $ 274 $ 56 $ 53,745 Total $ 53,527 $ 274 $ 56 $ 53,745
Amortized Cost and Estimated Fair Values of Investment Securities by Contractual Maturity	The amortized cost and estimated fair values of investment securities at March 31, 2019 by contractual maturity are shown in the following table (in thousands): Available-for-Sale Held-to-Maturity March 31, 2019 Amortized Cost Fair/Book Value Book Value Fair Value Within one year $ 156,785 $ 156,762 $ 760 $ 761 After one year through five years 16,814 16,856 3,329 3,330 After five years through ten years 1,387 1,386 24,797 25,189 After ten years 12,405 12,265 25,526 25,702 187,391 187,269 54,412 54,982 Investment securities not due at a single maturity date: Mortgage-backed securities 303,895 304,020 - - Total $ 491,286 $ 491,289 $ 54,412 $ 54,982
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	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 March 31, 2019 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Securities Available-for-Sale US Treasury Notes $ 149,962 $ 28 $ 4,909 $ 6 $ 154,871 $ 34 US Govt SBA 1,310 - 10,823 147 12,133 147 Mortgage Backed Securities 5,434 25 190,452 1,614 195,886 1,639 Total $ 156,706 $ 53 $ 206,184 $ 1,767 $ 362,890 $ 1,820 Securities Held-to-Maturity Obligations of States and Political Subdivisions $ 229 $ 1 $ 360 $ - $ 589 $ 1 Total $ 229 $ 1 $ 360 $ - $ 589 $ 1 Less Than 12 Months 12 Months or More Total December 31, 2018 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss 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 Less Than 12 Months 12 Months or More Total March 31, 2018 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Securities Available-for-Sale US Treasury Notes $ 23,551 $ 436 $ 59,866 $ 305 $ 83,417 $ 741 US Govt SBA 10,848 82 11,737 179 22,585 261 Mortgage Backed Securities 259,314 4,606 41,230 1,275 300,544 5,881 Total $ 293,713 $ 5,124 $ 112,833 $ 1,759 $ 406,546 $ 6,883 Securities Held-to-Maturity Obligations of States and Political Subdivisions $ 7,654 $ 56 $ - $ - $ 7,654 $ 56 Total $ 7,654 $ 56 $ - $ - $ 7,654 $ 56

Loans & Leases and Allowance _2

Loans & Leases and Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2019
Loans & Leases and 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 by portfolio segment and by impairment methodology at the dates indicated (in thousands) March 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 - - - - - - (379 ) (21 ) - - (400 ) Recoveries - - - 3 6 6 12 14 - - 41 Provision (209 ) 401 (42 ) (20 ) (29 ) (800 ) 644 (20 ) (14 ) 89 - Ending Balance- March 31, 2019 $ 11,400 $ 14,493 $ 1,207 $ 863 $ 2,738 $ 7,448 $ 11,933 $ 467 $ 4,008 $ 350 $ 54,907 Ending Balance Individually Evaluated for Impairment 214 - - 124 13 98 172 6 - - 627 Ending Balance Collectively Evaluated for Impairment 11,186 14,493 1,207 739 2,725 7,350 11,761 461 4,008 350 54,280 Loans: Ending Balance $ 815,366 $ 603,601 $ 99,837 $ 258,359 $ 40,072 $ 257,004 $ 364,439 $ 18,418 $ 106,872 $ - $ 2,563,968 Ending Balance Individually Evaluated for Impairment 4,638 7,238 - 2,469 255 200 1,591 6 - - 16,397 Ending Balance Collectively Evaluated for Impairment $ 810,728 $ 596,363 $ 99,837 $ 255,890 $ 39,817 $ 256,804 $ 362,848 $ 18,412 $ 106,872 $ - $ 2,547,571 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 March 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 - - - - (4 ) - - (17 ) - - (21 ) Recoveries - - - 3 1 6 2 11 - - 23 Provision 156 157 27 9 22 (297 ) 175 36 27 21 333 Ending Balance- March 31, 2018 $ 11,078 $ 12,242 $ 1,873 $ 827 $ 2,343 $ 7,868 $ 9,374 $ 239 $ 3,390 $ 1,443 $ 50,677 Ending Balance Individually Evaluated for Impairment 335 - - 76 17 - 205 8 - - 641 Ending Balance Collectively Evaluated for Impairment 10,743 12,242 1,873 751 2,326 7,868 9,169 231 3,390 1,443 50,036 Loans: Ending Balance $ 698,349 $ 508,400 $ 96,315 $ 264,137 $ 34,691 $ 261,427 $ 274,682 $ 6,685 $ 90,397 $ - $ 2,235,083 Ending Balance Individually Evaluated for Impairment 4,784 - - 2,427 332 - 1,713 9 - - 9,265 Ending Balance Collectively Evaluated for Impairment $ 693,565 $ 508,400 $ 96,315 $ 261,710 $ 34,359 $ 261,427 $ 272,969 $ 6,676 $ 90,397 $ - $ 2,225,818
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 the dates indicated (in thousands) March 31, 2019 Pass Special Mention Substandard Total Loans & Leases Loans & Leases: Commercial Real Estate $ 813,090 $ 2,276 $ - $ 815,366 Agricultural Real Estate 587,444 2,847 13,310 603,601 Real Estate Construction 99,837 - - 99,837 Residential 1st Mortgages 257,878 - 481 258,359 Home Equity Lines & Loans 40,028 - 44 40,072 Agricultural 250,630 6,167 207 257,004 Commercial 360,525 2,983 931 364,439 Consumer & Other 18,263 - 155 18,418 Leases 106,872 - - 106,872 Total $ 2,534,567 $ 14,273 $ 15,128 $ 2,563,968 December 31, 2018 Pass Special 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 March 31, 2018 Pass Special Mention Substandard Total Loans & Leases Loans & Leases: Commercial Real Estate $ 691,537 $ 6,812 $ - $ 698,349 Agricultural Real Estate 495,936 8,537 3,927 508,400 Real Estate Construction 86,779 9,536 - 96,315 Residential 1st Mortgages 263,101 - 1,036 264,137 Home Equity Lines & Loans 34,643 - 48 34,691 Agricultural 252,553 6,286 2,588 261,427 Commercial 268,745 5,460 477 274,682 Consumer & Other 6,565 - 120 6,685 Leases 88,320 2,077 - 90,397 Total $ 2,188,179 $ 38,708 $ 8,196 $ 2,235,083
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 the dates indicated (in thousands) March 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 $ - $ - $ - $ - $ - $ 815,366 $ 815,366 Agricultural Real Estate - - - - - 603,601 603,601 Real Estate Construction - - - - - 99,837 99,837 Residential 1st Mortgages 707 - - - 707 257,652 258,359 Home Equity Lines & Loans - - - - - 40,072 40,072 Agricultural - - - - - 257,004 257,004 Commercial - - - - - 364,439 364,439 Consumer & Other 20 - - - 20 18,398 18,418 Leases - - - - - 106,872 106,872 Total $ 727 $ - $ - $ - $ 727 $ 2,563,241 $ 2,563,968 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 March 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 $ - $ - $ - $ - $ - $ 698,349 $ 698,349 Agricultural Real Estate - - - - - 508,400 508,400 Real Estate Construction - - - - - 96,315 96,315 Residential 1st Mortgages 14 49 - 81 144 263,993 264,137 Home Equity Lines & Loans 20 - - - 20 34,671 34,691 Agricultural - - - - - 261,427 261,427 Commercial - 14 - - 14 274,668 274,682 Consumer & Other 8 - - - 8 6,677 6,685 Leases - - - - - 90,397 90,397 Total $ 42 $ 63 $ - $ 81 $ 186 $ 2,234,897 $ 2,235,083
Impaired Loans & Leases	The following tables show information related to impaired loans & leases for the periods indicated (in thousands) March 31, 2019 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial Real Estate $ 93 $ 93 $ - $ 94 $ 2 Agricultural Real Estate 7,239 7,238 - 7,239 73 $ 7,332 $ 7,331 $ - $ 7,333 $ 75 With an allowance recorded: Commercial Real Estate $ 2,883 $ 2,875 $ 214 $ 2,893 $ 23 Residential 1st Mortgages 1,625 1,829 81 1,633 21 Home Equity Lines & Loans 73 83 4 74 1 Agricultural 201 200 98 101 - Commercial 1,596 1,590 172 1,620 14 Consumer & Other 6 7 6 6 - $ 6,384 $ 6,584 $ 575 $ 6,327 $ 59 Total $ 13,716 $ 13,915 $ 575 $ 13,660 $ 134 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 March 31, 2018 Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial Real Estate $ 102 $ 102 $ - $ 103 $ 2 Residential 1st Mortgages 903 1,005 - 907 8 $ 1,005 $ 1,107 $ - $ 1,010 $ 10 With an allowance recorded: Commercial Real Estate $ 2,955 $ 2,943 $ 335 $ 2,964 $ 24 Residential 1st Mortgages 583 649 29 546 7 Home Equity Lines & Loans 78 88 4 76 1 Commercial 1,720 1,713 205 1,731 15 Consumer & Other 8 8 8 8 - $ 5,344 $ 5,401 $ 581 $ 5,325 $ 47 Total $ 6,349 $ 6,508 $ 581 $ 6,335 $ 57
Loans & Leases by Class Modified as Troubled Debt Restructured Loans	The following table presents loans or leases by class modified as TDRs during the three-month period ended March 31, 2019 (in thousands): March 31, 2019 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Agricultural 1 $ 201 $ 201 Total 1 $ 201 $ 201 The following table presents loans by class modified as troubled debt restructured loans for the period ended December 31, 2018 (in thousands) December 31, 2018 Troubled Debt Restructurings Number of Loans Pre-Modification Outstanding Recorded 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

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 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 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 March 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: Government Agency & Government-Sponsored Entities $ 3,027 $ - $ 3,027 $ - US Treasury Notes 164,674 164,674 - - US Govt SBA 14,412 - 14,412 - Mortgage Backed Securities 304,020 - 304,020 - Other 5,156 203 310 4,643 Total Assets Measured at Fair Value On a Recurring Basis $ 491,289 $ 164,877 $ 321,769 $ 4,643 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 Value Measurements At March 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 $ 3,095 $ - $ 3,095 $ - US Treasury Notes 143,409 143,409 - - US Govt SBA 27,537 - 27,537 - Mortgage Backed Securities 318,763 - 318,763 - Other 3,010 200 310 2,500 Total Assets Measured at Fair Value On a Recurring Basis $ 495,814 $ 143,609 $ 349,705 $ 2,500
Reconciliation of Level 3 Fair Value Category Measured at Fair Value on a Recurring Basis	The following table presents a reconciliation of the level 3 fair value category measured at fair value on a recurring basis: Net Realized / Unrealized Gains (Losses) (in thousands) Balance at Beginning of Period Purchases / Additions Sales / Reductions Realized Unrealized Balance at End of Period Three months ended March 31, 2019 Available-for-sale debt securities: $ 1,593 $ 479 $ 675 $ - $ - $ 1,397 Equity securities: $ 3,246 $ - $ - $ - $ - $ 3,246 Total $ 4,839 $ 479 $ 675 $ - $ - $ 4,643
Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis	The following tables present information about the Company’s other real estate and impaired loans or leases, 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 or leases are carried at fair value. Impaired loans or leases are only included in the following tables when their fair value is based upon a current 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 March 31, 2019, Using Fair Value Quoted Prices in Active Markets for Identical Assets Other Observable Inputs Significant Unobservable Inputs (in thousands) Total (Level 1) (Level 2) (Level 3) Impaired Loans Commercial Real Estate $ 2,660 $ - $ - $ 2,660 Residential 1st Mortgage 1,540 - - 1,540 Home Equity Lines and Loans 69 - - 69 Agricultural 102 - - 102 Commercial 1,418 - - 1,418 Total Impaired Loans 5,789 - - 5,789 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 $ 6,662 $ - $ - $ 6,662 Fair Value Measurements At December 31, 2018, Using Fair Value Quoted Prices in Active Markets for Identical Assets Other Observable Inputs Significant Unobservable Inputs (in thousands) Total (Level 1) (Level 2) (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 Fair Value Measurements At March 31, 2018, Using Fair Value Quoted Prices in Active Markets for Identical Assets Other Observable Inputs Significant Unobservable Inputs (in thousands) Total (Level 1) (Level 2) (Level 3) Impaired Loans Commercial Real Estate $ 2,608 $ - $ - $ 2,608 Residential 1st Mortgage 475 - - 475 Home Equity Lines and Loans 74 - - 74 Commercial 1,508 - - 1,508 Total Impaired Loans 4,665 - - 4,665 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 $ 5,538 $ - $ - $ 5,538
Quantitative Information about Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on a Nonrecurring 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 March 31, 2019: (in thousands) Fair Value Valuation Technique Unobservable Inputs Range, Weighted Avg. Impaired Loans Commercial Real Estate $ 2,660 Income Approach Capitalization Rate 3.25%, 3.25 % Residential 1st Mortgage $ 1,540 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 1% - 4%, 2.85 % Home Equity Lines and Loans $ 69 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 1% - 2%, 1.50 % Agricultural $ 102 Income Approach Capitalization Rate 5.10%, 5.10 % Commercial $ 1,418 Income Approach Capitalization Rate 3.25% - 8.70%, 3.40 % Other Real Estate Real Estate Construction $ 873 Sales Comparison Approach Adjustment for Difference Between Comparable Sales 10%, 10 %

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 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 March 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 $ 97,810 $ 97,810 $ - $ - $ 97,810 Investment Securities Available-for-Sale 491,289 164,877 321,769 4,643 491,289 Investment Securities Held-to-Maturity 54,412 - 36,705 18,276 54,981 Loans & Leases, Net of Deferred Fees & Allowance 2,509,061 - - 2,490,197 2,490,197 Accrued Interest Receivable 12,524 - 12,524 - 12,524 Liabilities: Deposits 3,008,040 2,483,258 521,321 - 3,004,579 Subordinated Debentures 10,310 - 7,600 - 7,600 Accrued Interest Payable 2,193 - 2,193 - 2,193 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 Fair Value of Financial Instruments Using March 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 $ 134,984 $ 134,984 $ - $ - $ 134,984 Investment Securities Available-for-Sale 495,814 143,609 349,705 2,500 495,814 Investment Securities Held-to-Maturity 53,527 - 37,028 16,717 53,745 Loans & Leases, Net of Deferred Fees & Allowance 2,184,406 - - 2,152,504 2,152,504 Accrued Interest Receivable 9,237 - 9,237 - 9,237 Liabilities: Deposits 2,701,405 2,218,642 478,846 - 2,697,488 Subordinated Debentures 10,310 - 7,751 - 7,751 Accrued Interest Payable 909 - 909 - 909

Dividends and Basic Earnings _2

Dividends and Basic Earnings Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2019
Dividends and Basic Earnings Per Common Share [Abstract]
Calculation of Basic Earnings per Share	The following table calculates the basic earnings per common share for the three months ended March 31, 2019 and 2018. (net income in thousands) 2019 2018 Net Income $ 13,549 $ 9,941 Weighted Average Number of Common Shares Outstanding 784,438 812,304 Basic Earnings Per Common Share Amount $ 17.27 $ 12.24

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 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) Three Months ended March 31, 2019 Cash Paid for Amounts Included in the Measurement of Lease Liabilities Operating Cash Flow from Operating Leases $ 196 Right-of-Use Assets Obtained in Exchange for New Operating Lease Liabilities 4,729 Weighted-Average Remaining Lease Term - Operating Leases, in Years 7.70 Weighted-Average Discount Rate - Operating Leases 2.8 %
Maturity of Remaining Lease Liability	The table below summarizes the maturity of remaining lease liability: (in thousands) March 31, 2019 2019 $ 587 2020 792 2021 694 2022 548 2023 542 2024 and thereafter 1,916 Total Lease Payments 5,079 Less: Interest (515 ) Present Value of Lease Liabilities $ 4,564

Significant Accounting Polici_4

Significant Accounting Policies (Details) $ in Thousands	Oct. 10, 2018USD ($)Branch	Nov. 18, 2016USD ($)Branch	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Mar. 31, 2018USD ($)
Acquisitions [Abstract]
Assets			$ 3,395,915	$ 3,434,243	$ 3,059,983
Bank of Rio Vista [Member]
Acquisitions [Abstract]
Assets	$ 217,500
Number of branches | Branch	3
Delta National Bancorp [Member]
Acquisitions [Abstract]
Assets		$ 112,000
Number of branches | Branch		4

Significant Accounting Polici_5

Significant Accounting Policies, Accounting Changes (Details) $ in Thousands	Mar. 31, 2019USD ($)
Assets and Liabilities, Lessee [Abstract]
Operating lease right-of-use asset	$ 4,550
Operating lease liability	4,564
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, Investment Securities (Details)	3 Months Ended
	Mar. 31, 2019Component
Investment Securities [Abstract]
Number of components into which amount of impairment is split	2

Significant Accounting Polici_7

Significant Accounting Policies, Loans & Leases and Allowance for Credit Losses (Details)	3 Months Ended
	Mar. 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_8

Significant Accounting Policies, Premises and Equipment (Details)	3 Months Ended
	Mar. 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 Polici_9

Significant Accounting Policies, Goodwill and Other Intangible Assets (Details) - Core Deposit Intangible [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Goodwill and Other Intangible Assets [Abstract]
Estimated useful life	10 years
Future estimated amortization expense for CDI [Abstract]
2019	$ 480
2020	626
2021	611
2022	593
2023	573
Thereafter	2,236
Total	$ 5,119

Investment Securities, Securiti

Investment Securities, Securities Available-for-Sale (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost		$ 491,286	$ 499,639	$ 502,262
Gross unrealized gains		1,823	1,208	435
Gross unrealized losses		1,820	5,451	6,883
Fair/Book value		491,289	495,396	495,814
Government Agency & Government-Sponsored Entities [Member]
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost		3,021	3,033	3,068
Gross unrealized gains		6	6	27
Gross unrealized losses		0	0	0
Fair/Book value		3,027	3,039	3,095
US Treasury Notes [Member]
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost		164,660	164,672	144,147
Gross unrealized gains		48	0	3
Gross unrealized losses		34	158	741
Fair/Book value		164,674	164,514	143,409
US Govt SBA [Member]
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost		14,554	15,601	27,786
Gross unrealized gains		5	6	12
Gross unrealized losses		147	160	261
Fair/Book value		14,412	15,447	27,537
Mortgage Backed Securities [Member]
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost	[1]	303,895	310,982	324,251
Gross unrealized gains	[1]	1,764	1,196	393
Gross unrealized losses	[1]	1,639	5,133	5,881
Fair/Book value	[1]	304,020	307,045	318,763
Other [Member]
Amortized cost, fair values, and unrealized gains and losses of securities available-for-sale [Abstract]
Amortized cost		5,156	5,351	3,010
Gross unrealized gains		0	0	0
Gross unrealized losses		0	0	0
Fair/Book value		$ 5,156	$ 5,351	$ 3,010
[1]	All Mortgage Backed Securities consist of securities collateralized by residential real estate and 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	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Book values, estimated fair values and unrealized gains and losses of investments classified as held-to-maturity [Abstract]
Book value	$ 54,412	$ 53,566	$ 53,527
Gross unrealized gains	571	211	274
Gross unrealized losses	1	39	56
Fair value	54,982	53,738	53,745
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	54,412	53,566	53,527
Gross unrealized gains	571	211	274
Gross unrealized losses	1	39	56
Fair value	$ 54,982	$ 53,738	$ 53,745

Investment Securities, Contract

Investment Securities, Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Amortized Cost [Abstract]
Within one year	$ 156,785
After one year through five years	16,814
After five years through ten years	1,387
After ten years	12,405
Amortized cost, excluding investment securities not due at a single maturity date	187,391
Investment securities not due at a single maturity date, mortgage-backed securities	303,895
Amortized cost	491,286	$ 499,639	$ 502,262
Fair/Book Value [Abstract]
Within one year	156,762
After one year through five years	16,856
After five years through ten years	1,386
After ten years	12,265
Fair/Book value, excluding investment securities not due at a single maturity date	187,269
Investment securities not due at a single maturity date, mortgage-backed securities	304,020
Fair/Book value	491,289	495,396	495,814
Book Value [Abstract]
Within one year	760
After one year through five years	3,329
After five years through ten years	24,797
After ten years	25,526
Book value, excluding investment securities not due at a single maturity date	54,412
Investment securities not due at a single maturity date, mortgage-backed securities	0
Book value	54,412	53,566	53,527
Fair Value [Abstract]
Within one year	761
After one year through five years	3,330
After five years through ten years	25,189
After ten years	25,702
Fair value, excluding investment securities not due at a single maturity date	54,982
Investment securities not due at a single maturity date, mortgage-backed securities	0
Fair value	$ 54,982	$ 53,738	$ 53,745

Investment Securities, Securi_3

Investment Securities, Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)Security	Dec. 31, 2018USD ($)	Mar. 31, 2018USD ($)
Investment Securities, Qualitative Disclosure [Abstract]
Number of investment securities held | Security	588
Less than 12 months, number of positions | Security	26
12 months or more, number of positions | Security	133
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 156,706	$ 180,524	$ 293,713
Less than 12 months, unrealized loss	53	563	5,124
12 months or more, fair value	206,184	255,418	112,833
12 months or more, unrealized loss	1,767	4,888	1,759
Total, fair value	362,890	435,942	406,546
Total, unrealized loss	1,820	5,451	6,883
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	229	6,052	7,654
Less than 12 months, unrealized loss	1	23	56
12 months or more, fair value	360	849	0
12 months or more, unrealized loss	0	16	0
Total, fair value	589	6,901	7,654
Total, unrealized loss	1	39	56
Obligations of States and Political Subdivisions [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	229	6,052	7,654
Less than 12 months, unrealized loss	1	23	56
12 months or more, fair value	360	849	0
12 months or more, unrealized loss	0	16	0
Total, fair value	589	6,901	7,654
Total, unrealized loss	$ 1	39	56
Less than 12 months, number of positions | Security	1
12 months or more, number of positions | Security	1
Municipal Bonds [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Percentage of bank qualified municipal bond portfolio rated	99.00%
Percentage of portfolio not rated	1.00%
Government Agency & Government-Sponsored Entities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Total, unrealized loss	$ 0	0	0
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, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 149,962	124,985	23,551
Less than 12 months, unrealized loss	28	7	436
12 months or more, fair value	4,909	39,529	59,866
12 months or more, unrealized loss	6	151	305
Total, fair value	154,871	164,514	83,417
Total, unrealized loss	$ 34	158	741
Less than 12 months, number of positions | Security	15
12 months or more, number of positions | Security	1
US Govt SBA [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 1,310	3,250	10,848
Less than 12 months, unrealized loss	0	28	82
12 months or more, fair value	10,823	8,618	11,737
12 months or more, unrealized loss	147	132	179
Total, fair value	12,133	11,868	22,585
Total, unrealized loss	$ 147	160	261
Less than 12 months, number of positions | Security	4
12 months or more, number of positions | Security	68
Mortgage Backed Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 5,434	52,289	259,314
Less than 12 months, unrealized loss	25	528	4,606
12 months or more, fair value	190,452	207,271	41,230
12 months or more, unrealized loss	1,614	4,605	1,275
Total, fair value	195,886	259,560	300,544
Total, unrealized loss	$ 1,639	$ 5,133	$ 5,881
Less than 12 months, number of positions | Security	6
12 months or more, number of positions | Security	63

Investment Securities, Proceeds

Investment Securities, Proceeds from Sales (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Proceeds from sales and calls of securities [Abstract]
Proceeds from sales and calls of securities	$ 0	$ 0

Investment Securities, Pledged

Investment Securities, Pledged Securities (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Investment Securities [Abstract]
Securities pledged to secure public deposits, FHLB borrowings, and other government agency deposits as required by law	$ 262.1	$ 268.8	$ 245.4

Loans & Leases and Allowance _3

Loans & Leases and Allowance for Credit Losses, Allocation of Allowance For Credit Losses by Portfolio Segment and By Impairment Methodology (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Allowance for Credit Losses [Roll Forward]
Beginning Balance	$ 55,266	$ 50,342	$ 50,342
Charge-Offs	(400)	(21)	(767)
Recoveries	41	23	158
Provision	0	333	5,533
Ending Balance	54,907	50,677	55,266
Ending Balance Individually Evaluated for Impairment	627	641	565
Ending Balance Collectively Evaluated for Impairment	54,280	50,036	54,701
Loans & Leases [Abstract]
Ending Balance	2,563,968	2,235,083	2,571,241
Ending Balance Individually Evaluated for Impairment	16,397	9,265	16,347
Ending Balance Collectively Evaluated for Impairment	2,547,571	2,225,818	2,554,894
Commercial Real Estate [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	11,609	10,922	10,922
Charge-Offs	0	0	0
Recoveries	0	0	2
Provision	(209)	156	685
Ending Balance	11,400	11,078	11,609
Ending Balance Individually Evaluated for Impairment	214	335	234
Ending Balance Collectively Evaluated for Impairment	11,186	10,743	11,375
Loans & Leases [Abstract]
Ending Balance	815,366	698,349	826,549
Ending Balance Individually Evaluated for Impairment	4,638	4,784	4,676
Ending Balance Collectively Evaluated for Impairment	810,728	693,565	821,873
Agricultural Real Estate [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	14,092	12,085	12,085
Charge-Offs	0	0	0
Recoveries	0	0	0
Provision	401	157	2,007
Ending Balance	14,493	12,242	14,092
Ending Balance Individually Evaluated for Impairment	0	0	0
Ending Balance Collectively Evaluated for Impairment	14,493	12,242	14,092
Loans & Leases [Abstract]
Ending Balance	603,601	508,400	584,625
Ending Balance Individually Evaluated for Impairment	7,238	0	7,238
Ending Balance Collectively Evaluated for Impairment	596,363	508,400	577,387
Real Estate Construction [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	1,249	1,846	1,846
Charge-Offs	0	0	0
Recoveries	0	0	0
Provision	(42)	27	(597)
Ending Balance	1,207	1,873	1,249
Ending Balance Individually Evaluated for Impairment	0	0	0
Ending Balance Collectively Evaluated for Impairment	1,207	1,873	1,249
Loans & Leases [Abstract]
Ending Balance	99,837	96,315	98,568
Ending Balance Individually Evaluated for Impairment	0	0	0
Ending Balance Collectively Evaluated for Impairment	99,837	96,315	98,568
Residential 1st Mortgages [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	880	815	815
Charge-Offs	0	0	(31)
Recoveries	3	3	15
Provision	(20)	9	81
Ending Balance	863	827	880
Ending Balance Individually Evaluated for Impairment	124	76	125
Ending Balance Collectively Evaluated for Impairment	739	751	755
Loans & Leases [Abstract]
Ending Balance	258,359	264,137	259,736
Ending Balance Individually Evaluated for Impairment	2,469	2,427	2,491
Ending Balance Collectively Evaluated for Impairment	255,890	261,710	257,245
Home Equity Lines & Loans [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	2,761	2,324	2,324
Charge-Offs	0	(4)	(8)
Recoveries	6	1	6
Provision	(29)	22	439
Ending Balance	2,738	2,343	2,761
Ending Balance Individually Evaluated for Impairment	13	17	15
Ending Balance Collectively Evaluated for Impairment	2,725	2,326	2,746
Loans & Leases [Abstract]
Ending Balance	40,072	34,691	40,789
Ending Balance Individually Evaluated for Impairment	255	332	297
Ending Balance Collectively Evaluated for Impairment	39,817	34,359	40,492
Agricultural [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	8,242	8,159	8,159
Charge-Offs	0	0	0
Recoveries	6	6	61
Provision	(800)	(297)	22
Ending Balance	7,448	7,868	8,242
Ending Balance Individually Evaluated for Impairment	98	0	0
Ending Balance Collectively Evaluated for Impairment	7,350	7,868	8,242
Loans & Leases [Abstract]
Ending Balance	257,004	261,427	290,463
Ending Balance Individually Evaluated for Impairment	200	0	0
Ending Balance Collectively Evaluated for Impairment	256,804	261,427	290,463
Commercial [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	11,656	9,197	9,197
Charge-Offs	(379)	0	(613)
Recoveries	12	2	20
Provision	644	175	3,052
Ending Balance	11,933	9,374	11,656
Ending Balance Individually Evaluated for Impairment	172	205	185
Ending Balance Collectively Evaluated for Impairment	11,761	9,169	11,471
Loans & Leases [Abstract]
Ending Balance	364,439	274,682	343,834
Ending Balance Individually Evaluated for Impairment	1,591	1,713	1,639
Ending Balance Collectively Evaluated for Impairment	362,848	272,969	342,195
Consumer & Other [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	494	209	209
Charge-Offs	(21)	(17)	(115)
Recoveries	14	11	54
Provision	(20)	36	346
Ending Balance	467	239	494
Ending Balance Individually Evaluated for Impairment	6	8	6
Ending Balance Collectively Evaluated for Impairment	461	231	488
Loans & Leases [Abstract]
Ending Balance	18,418	6,685	19,412
Ending Balance Individually Evaluated for Impairment	6	9	6
Ending Balance Collectively Evaluated for Impairment	18,412	6,676	19,406
Leases [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	4,022	3,363	3,363
Charge-Offs	0	0	0
Recoveries	0	0	0
Provision	(14)	27	659
Ending Balance	4,008	3,390	4,022
Ending Balance Individually Evaluated for Impairment	0	0	0
Ending Balance Collectively Evaluated for Impairment	4,008	3,390	4,022
Loans & Leases [Abstract]
Ending Balance	106,872	90,397	107,265
Ending Balance Individually Evaluated for Impairment	0	0	0
Ending Balance Collectively Evaluated for Impairment	106,872	90,397	107,265
Unallocated [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	261	1,422	1,422
Charge-Offs	0	0	0
Recoveries	0	0	0
Provision	89	21	(1,161)
Ending Balance	350	1,443	261
Ending Balance Individually Evaluated for Impairment	0	0	0
Ending Balance Collectively Evaluated for Impairment	350	1,443	261
Loans & Leases [Abstract]
Ending Balance	0	0	0
Ending Balance Individually Evaluated for Impairment	0	0	0
Ending Balance Collectively Evaluated for Impairment	0	0	0
Restructured Loans [Member]
Loans & Leases [Abstract]
Ending Balance Individually Evaluated for Impairment	$ 2,700	$ 2,900	$ 2,800

Loans & Leases and Allowance _4

Loans & Leases and Allowance for Credit Losses, Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	$ 2,563,968	$ 2,571,241	$ 2,235,083
Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	2,534,567	2,543,255	2,188,179
Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	14,273	12,865	38,708
Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	15,128	15,121	8,196
Doubtful [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0	0
Commercial Real Estate [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	815,366	826,549	698,349
Commercial Real Estate [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	813,090	823,983	691,537
Commercial Real Estate [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	2,276	2,566	6,812
Commercial Real Estate [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0	0
Agricultural Real Estate [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	603,601	584,625	508,400
Agricultural Real Estate [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	587,444	566,612	495,936
Agricultural Real Estate [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	2,847	4,703	8,537
Agricultural Real Estate [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	13,310	13,310	3,927
Real Estate Construction [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	99,837	98,568	96,315
Real Estate Construction [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	99,837	98,568	86,779
Real Estate Construction [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0	9,536
Real Estate Construction [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0	0
Residential 1st Mortgages [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	258,359	259,736	264,137
Residential 1st Mortgages [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	257,878	259,208	263,101
Residential 1st Mortgages [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0	0
Residential 1st Mortgages [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	481	528	1,036
Home Equity Lines & Loans [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	40,072	40,789	34,691
Home Equity Lines & Loans [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	40,028	40,744	34,643
Home Equity Lines & Loans [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0	0
Home Equity Lines & Loans [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	44	45	48
Agricultural [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	257,004	290,463	261,427
Agricultural [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	250,630	284,561	252,553
Agricultural [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	6,167	5,433	6,286
Agricultural [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	207	469	2,588
Commercial [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	364,439	343,834	274,682
Commercial [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	360,525	343,085	268,745
Commercial [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	2,983	163	5,460
Commercial [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	931	586	477
Consumer & Other [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	18,418	19,412	6,685
Consumer & Other [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	18,263	19,229	6,565
Consumer & Other [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0	0
Consumer & Other [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	155	183	120
Leases [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	106,872	107,265	90,397
Leases [Member] | Pass [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	106,872	107,265	88,320
Leases [Member] | Special Mention [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	0	0	2,077
Leases [Member] | Substandard [Member]
Loan & Lease Portfolio Allocated by Management's Internal Risk Ratings [Abstract]
Loans & leases	$ 0	$ 0	$ 0

Loans & Leases and Allowance _5

Loans & Leases and Allowance for Credit Losses, Aging Analysis of Loan & Lease Portfolio by the Time Past Due (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	$ 0	$ 0	$ 0
Nonaccrual	0	0	81
Total Past Due	727	1,438	186
Current	2,563,241	2,569,803	2,234,897
Total Loans & Leases	2,563,968	2,571,241	2,235,083
30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	727	707	42
60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	731	63
Commercial Real Estate [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0	0
Nonaccrual	0	0	0
Total Past Due	0	731	0
Current	815,366	825,818	698,349
Total Loans & Leases	815,366	826,549	698,349
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	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	0
Agricultural Real Estate [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0	0
Nonaccrual	0	0	0
Total Past Due	0	0	0
Current	603,601	584,625	508,400
Total Loans & Leases	603,601	584,625	508,400
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	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	0
Real Estate Construction [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0	0
Nonaccrual	0	0	0
Total Past Due	0	327	0
Current	99,837	98,241	96,315
Total Loans & Leases	99,837	98,568	96,315
Real Estate Construction [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	327	0
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	0
Residential 1st Mortgages [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0	0
Nonaccrual	0	0	81
Total Past Due	707	367	144
Current	257,652	259,369	263,993
Total Loans & Leases	258,359	259,736	264,137
Residential 1st Mortgages [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	707	367	14
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	49
Home Equity Lines & Loans [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0	0
Nonaccrual	0	0	0
Total Past Due	0	0	20
Current	40,072	40,789	34,671
Total Loans & Leases	40,072	40,789	34,691
Home Equity Lines & Loans [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0	20
Home Equity Lines & Loans [Member] | 60-89 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0	0
Agricultural [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0	0
Nonaccrual	0	0	0
Total Past Due	0	0	0
Current	257,004	290,463	261,427
Total Loans & Leases	257,004	290,463	261,427
Agricultural [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	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	0
Commercial [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0	0
Nonaccrual	0	0	0
Total Past Due	0	0	14
Current	364,439	343,834	274,668
Total Loans & Leases	364,439	343,834	274,682
Commercial [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	0	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	14
Consumer & Other [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0	0
Nonaccrual	0	0	0
Total Past Due	20	13	8
Current	18,398	19,399	6,677
Total Loans & Leases	18,418	19,412	6,685
Consumer & Other [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	20	13	8
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	0
Leases [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
90 Days and Still Accruing	0	0	0
Nonaccrual	0	0	0
Total Past Due	0	0	0
Current	106,872	107,265	90,397
Total Loans & Leases	106,872	107,265	90,397
Leases [Member] | 30-59 Days Past Due [Member]
Aging Analysis of Loan & Lease Portfolio by Time Past Due [Abstract]
Total Past Due	0	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	$ 0

Loans & Leases and Allowance _6

Loans & Leases and Allowance for Credit Losses, Impaired Loans & Lease (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
With no related allowance recorded [Abstract]
Recorded Investment	$ 7,332	$ 1,005	$ 7,334
Unpaid Principal Balance	7,331	1,107	7,334
Average Recorded Investment	7,333	1,010	3,945
Interest Income Recognized	75	10	135
With an allowance recorded [Abstract]
Recorded Investment	6,384	5,344	6,266
Unpaid Principal Balance	6,584	5,401	6,460
Related Allowance	575	581	511
Average Recorded Investment	6,327	5,325	6,217
Interest Income Recognized	59	47	206
Total [Abstract]
Recorded Investment	13,716	6,349	13,600
Unpaid Principal Balance	13,915	6,508	13,794
Related Allowance	575	581	511
Average Recorded Investment	13,660	6,335	10,162
Interest Income Recognized	134	57	341
Commercial Real Estate [Member]
With no related allowance recorded [Abstract]
Recorded Investment	93	102	95
Unpaid Principal Balance	93	102	96
Average Recorded Investment	94	103	99
Interest Income Recognized	2	2	8
With an allowance recorded [Abstract]
Recorded Investment	2,883	2,955	2,902
Unpaid Principal Balance	2,875	2,943	2,892
Related Allowance	214	335	234
Average Recorded Investment	2,893	2,964	2,929
Interest Income Recognized	23	24	96
Total [Abstract]
Related Allowance	214	335	234
Agricultural Real Estate [Member]
With no related allowance recorded [Abstract]
Recorded Investment	7,239		7,239
Unpaid Principal Balance	7,238		7,238
Average Recorded Investment	7,239		3,620
Interest Income Recognized	73		119
Residential 1st Mortgages [Member]
With no related allowance recorded [Abstract]
Recorded Investment		903	0
Unpaid Principal Balance		1,005	0
Average Recorded Investment		907	226
Interest Income Recognized		8	8
With an allowance recorded [Abstract]
Recorded Investment	1,625	583	1,640
Unpaid Principal Balance	1,829	649	1,838
Related Allowance	81	29	82
Average Recorded Investment	1,633	546	1,371
Interest Income Recognized	21	7	48
Total [Abstract]
Related Allowance	81	29	82
Home Equity Lines & Loans [Member]
With an allowance recorded [Abstract]
Recorded Investment	73	78	74
Unpaid Principal Balance	83	88	84
Related Allowance	4	4	4
Average Recorded Investment	74	76	76
Interest Income Recognized	1	1	4
Total [Abstract]
Related Allowance	4	4	4
Agricultural [Member]
With an allowance recorded [Abstract]
Recorded Investment	201
Unpaid Principal Balance	200
Related Allowance	98
Average Recorded Investment	101
Interest Income Recognized	0
Total [Abstract]
Related Allowance	98
Commercial [Member]
With an allowance recorded [Abstract]
Recorded Investment	1,596	1,720	1,644
Unpaid Principal Balance	1,590	1,713	1,639
Related Allowance	172	205	185
Average Recorded Investment	1,620	1,731	1,834
Interest Income Recognized	14	15	58
Total [Abstract]
Related Allowance	172	205	185
Consumer & Other [Member]
With an allowance recorded [Abstract]
Recorded Investment	6	8	6
Unpaid Principal Balance	7	8	7
Related Allowance	6	8	6
Average Recorded Investment	6	8	7
Interest Income Recognized	0	0	0
Total [Abstract]
Related Allowance	$ 6	$ 8	$ 6

Loans & Leases and Allowance _7

Loans & Leases and Allowance for Credit Losses, Loans & Lease by Class Modified as Troubled Debt Restructured Loans (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019USD ($)Loan	Mar. 31, 2018USD ($)Loan	Dec. 31, 2018USD ($)Loan	Dec. 31, 2017USD ($)
Troubled Debt Restructured Loans [Abstract]
Consumer mortgage loans in process of foreclosure	$ 0
Specific reserves	575	$ 577	$ 511	$ 623
Commitments to lend additional amounts to customers with outstanding loans that are classified as troubled debt restructurings	$ 0	$ 0	$ 0	0
Loans by class modified as troubled debt restructured loans [Abstract]
Number of Loans | Loan	1		3
Pre-Modification Outstanding Recorded Investment	$ 201		$ 7,525
Post-Modification Outstanding Recorded Investment	201		$ 7,494
Increase in allowance for credit losses	$ 84
Number of loans modified as troubled debt restructurings with subsequent payment defaults | Loan	0	0	0
Threshold period after which loan is considered to be in payment default	90 days
TDR's charge-offs			$ 31
Stated Interest Rate Reduction [Member]
Troubled Debt Restructured Loans [Abstract]
Period of modifications	5 years		5 years
Extended Maturity [Member]
Troubled Debt Restructured Loans [Abstract]
Period of modifications	10 years		10 years
Performing [Member]
Troubled Debt Restructured Loans [Abstract]
Troubled debt restructured loans	$ 13,700	$ 6,200	$ 13,600	$ 6,300
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 Outstanding Recorded 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 Outstanding Recorded Investment			$ 255
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 Outstanding Recorded Investment	$ 201

Fair Value Measurements, Assets

Fair Value Measurements, Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Percentage of selling costs		10.00%
Investment Securities Available-for-Sale		$ 491,289	$ 495,396	$ 495,814
Level 1 to Level 2 transfers		0
Level 2 to Level 1 transfers		0
Transfer into Level 3		0
Transfer out of Level 3		0
Gains (losses) for assets categorized as Level 3 assets		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		3,027	3,039	3,095
US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		164,674	164,514	143,409
US Govt SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		14,412	15,447	27,537
Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale	[1]	304,020	307,045	318,763
Other [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		5,156	5,351	3,010
Significant Unobservable Inputs (Level 3) [Member] | SBA Loans [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		3,000
Significant Unobservable Inputs (Level 3) [Member] | California Reclamation Districts [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		1,400
Significant Unobservable Inputs (Level 3) [Member] | Pacific Coast Bankers' Bank and The Independent Bankers' Bank Stock [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		200
Recurring [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		491,289	495,396	495,814
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		3,027	3,039	3,095
Recurring [Member] | US Treasury Notes [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		164,674	164,514	143,409
Recurring [Member] | US Govt SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		14,412	15,447	27,537
Recurring [Member] | Mortgage Backed Securities [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		304,020	307,045	318,763
Recurring [Member] | Other [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		5,156	5,351	3,010
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		164,877	164,716	143,609
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	0	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		164,674	164,514	143,409
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | US Govt SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	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	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		203	202	200
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		321,769	325,841	349,705
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		3,027	3,039	3,095
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	0
Recurring [Member] | Other Observable Inputs (Level 2) [Member] | US Govt SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		14,412	15,447	27,537
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		304,020	307,045	318,763
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	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		4,643	4,839	2,500
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	0	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	0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | US Govt SBA [Member]
Assets Measured at Fair Value on Recurring Basis by Fair Value Hierarchy [Abstract]
Investment Securities Available-for-Sale		0	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	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		$ 4,643	$ 4,839	$ 2,500
[1]	All Mortgage Backed Securities consist of securities collateralized by residential real estate and were issued by an agency or government sponsored entity of the U.S. government.

Fair Value Measurements, Level

Fair Value Measurements, Level 3 Valuations (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Reconciliation of level 3 fair value category measured at fair value on a recurring basis [Roll Forward]
Balance at Beginning of Period	$ 4,839
Purchases/Additions	479
Sales/Reductions	675
Net Realized Gains (Losses)	0
Net Unrealized Gains (Losses)	0
Balance at End of Period	4,643
Available-for-Sale Debt Securities [Member]
Reconciliation of level 3 fair value category measured at fair value on a recurring basis [Roll Forward]
Balance at Beginning of Period	1,593
Purchases/Additions	479
Sales/Reductions	675
Net Realized Gains (Losses)	0
Net Unrealized Gains (Losses)	0
Balance at End of Period	1,397
Equity Securities [Member]
Reconciliation of level 3 fair value category measured at fair value on a recurring basis [Roll Forward]
Balance at Beginning of Period	3,246
Purchases/Additions	0
Sales/Reductions	0
Net Realized Gains (Losses)	0
Net Unrealized Gains (Losses)	0
Balance at End of Period	$ 3,246

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	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	$ 5,789	$ 5,732	$ 4,665
Other Real Estate	873	873	873
Total Assets Measured at Fair Value On a Non-Recurring Basis	6,662	6,605	5,538
Commercial Real Estate [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	2,660	2,658	2,608
Residential 1st Mortgage [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	1,540	1,550	475
Home Equity Lines and Loans [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	69	70	74
Agricultural [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	102
Commercial [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	1,418	1,454	1,508
Real Estate Construction [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Other Real Estate	873	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	0
Other Real Estate	0	0	0
Total Assets Measured at Fair Value On a Non-Recurring Basis	0	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	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Residential 1st Mortgage [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	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	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	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	0
Other Observable Inputs (Level 2) [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	0	0
Other Real Estate	0	0	0
Total Assets Measured at Fair Value On a Non-Recurring Basis	0	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	0
Other Observable Inputs (Level 2) [Member] | Residential 1st Mortgage [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	0	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	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	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	0
Significant Unobservable Inputs (Level 3) [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	5,789	5,732	4,665
Other Real Estate	873	873	873
Total Assets Measured at Fair Value On a Non-Recurring Basis	6,662	6,605	5,538
Significant Unobservable Inputs (Level 3) [Member] | Commercial Real Estate [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	2,660	2,658	2,608
Significant Unobservable Inputs (Level 3) [Member] | Residential 1st Mortgage [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	1,540	1,550	475
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	69	70	74
Significant Unobservable Inputs (Level 3) [Member] | Agricultural [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	102
Significant Unobservable Inputs (Level 3) [Member] | Commercial [Member]
Fair Value on Non-recurring Basis by Fair Value Hierarchy [Abstract]
Impaired Loans	1,418	1,454	1,508
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	$ 873

Fair Value Measurements, Quanti

Fair Value Measurements, Quantitative Information (Details) $ in Thousands	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Mar. 31, 2018USD ($)
Level 3 [Member] | Commercial Real Estate [Member] | Income Approach [Member] | Capitalization Rate [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0325
Level 3 [Member] | Commercial Real Estate [Member] | Income Approach [Member] | Capitalization Rate [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0325
Level 3 [Member] | Residential 1st Mortgage [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member] | Minimum [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.01
Level 3 [Member] | Residential 1st Mortgage [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member] | Maximum [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.04
Level 3 [Member] | Residential 1st Mortgage [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0285
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	0.01
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	0.02
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	0.0150
Level 3 [Member] | Agricultural [Member] | Income Approach [Member] | Capitalization Rate [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0510
Level 3 [Member] | Agricultural [Member] | Income Approach [Member] | Capitalization Rate [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0510
Level 3 [Member] | Commercial [Member] | Income Approach [Member] | Capitalization Rate [Member] | Minimum [Member]
Quantitative Information [Abstract]
Impaired loans, measurement input	0.0325
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	0.0340
Level 3 [Member] | Real Estate Construction [Member] | Sales Comparison Approach [Member] | Adjustment for Difference Between Comparable Sales [Member]
Quantitative Information [Abstract]
Other real estate, measurement input	0.1
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, measurement input	0.1
Nonrecurring [Member]
Quantitative Information [Abstract]
Impaired loans	$ 5,789	$ 5,732	$ 4,665
Other real estate	873	873	873
Nonrecurring [Member] | Commercial Real Estate [Member]
Quantitative Information [Abstract]
Impaired loans	2,660	2,658	2,608
Nonrecurring [Member] | Residential 1st Mortgage [Member]
Quantitative Information [Abstract]
Impaired loans	1,540	1,550	475
Nonrecurring [Member] | Home Equity Lines and Loans [Member]
Quantitative Information [Abstract]
Impaired loans	69	70	74
Nonrecurring [Member] | Agricultural [Member]
Quantitative Information [Abstract]
Impaired loans	102
Nonrecurring [Member] | Commercial [Member]
Quantitative Information [Abstract]
Impaired loans	1,418	1,454	1,508
Nonrecurring [Member] | Real Estate Construction [Member]
Quantitative Information [Abstract]
Other real estate	873	873	873
Nonrecurring [Member] | Level 3 [Member]
Quantitative Information [Abstract]
Impaired loans	5,789	5,732	4,665
Other real estate	873	873	873
Nonrecurring [Member] | Level 3 [Member] | Commercial Real Estate [Member]
Quantitative Information [Abstract]
Impaired loans	2,660	2,658	2,608
Nonrecurring [Member] | Level 3 [Member] | Residential 1st Mortgage [Member]
Quantitative Information [Abstract]
Impaired loans	1,540	1,550	475
Nonrecurring [Member] | Level 3 [Member] | Home Equity Lines and Loans [Member]
Quantitative Information [Abstract]
Impaired loans	69	70	74
Nonrecurring [Member] | Level 3 [Member] | Agricultural [Member]
Quantitative Information [Abstract]
Impaired loans	102
Nonrecurring [Member] | Level 3 [Member] | Commercial [Member]
Quantitative Information [Abstract]
Impaired loans	1,418	1,454	1,508
Nonrecurring [Member] | Level 3 [Member] | Real Estate Construction [Member]
Quantitative Information [Abstract]
Other real estate	$ 873	$ 873	$ 873

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Assets [Abstract]
Investment Securities Available-for-Sale	$ 491,289	$ 495,396	$ 495,814
Carrying Amount [Member]
Assets [Abstract]
Cash and Cash Equivalents	97,810	145,564	134,984
Investment Securities Available-for-Sale	491,289	495,396	495,814
Investment Securities Held-to-Maturity	54,412	53,566	53,527
Loans & Leases, Net of Deferred Fees & Allowance	2,509,061	2,515,975	2,184,406
Accrued Interest Receivable	12,524	14,098	9,237
Liabilities [Abstract]
Deposits	3,008,040	3,062,832	2,701,405
Subordinated Debentures	10,310	10,310	10,310
Accrued Interest Payable	2,193	1,365	909
Estimated Fair Value [Member]
Assets [Abstract]
Cash and Cash Equivalents	97,810	145,564	134,984
Investment Securities Available-for-Sale	491,289	495,396	495,814
Investment Securities Held-to-Maturity	54,981	53,738	53,745
Loans & Leases, Net of Deferred Fees & Allowance	2,490,197	2,485,182	2,152,504
Accrued Interest Receivable	12,524	14,098	9,237
Liabilities [Abstract]
Deposits	3,004,579	3,058,571	2,697,488
Subordinated Debentures	7,600	7,745	7,751
Accrued Interest Payable	2,193	1,365	909
Estimated Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Cash and Cash Equivalents	97,810	145,564	134,984
Investment Securities Available-for-Sale	164,877	164,716	143,609
Investment Securities Held-to-Maturity	0	0	0
Loans & Leases, Net of Deferred Fees & Allowance	0	0	0
Accrued Interest Receivable	0	0	0
Liabilities [Abstract]
Deposits	2,483,258	2,572,805	2,218,642
Subordinated Debentures	0	0	0
Accrued Interest Payable	0	0	0
Estimated Fair Value [Member] | Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Cash and Cash Equivalents	0	0	0
Investment Securities Available-for-Sale	321,769	325,841	349,705
Investment Securities Held-to-Maturity	36,705	35,083	37,028
Loans & Leases, Net of Deferred Fees & Allowance	0	0	0
Accrued Interest Receivable	12,524	14,098	9,237
Liabilities [Abstract]
Deposits	521,321	485,766	478,846
Subordinated Debentures	7,600	7,745	7,751
Accrued Interest Payable	2,193	1,365	909
Estimated Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Cash and Cash Equivalents	0	0	0
Investment Securities Available-for-Sale	4,643	4,839	2,500
Investment Securities Held-to-Maturity	18,276	18,655	16,717
Loans & Leases, Net of Deferred Fees & Allowance	2,490,197	2,485,182	2,152,504
Accrued Interest Receivable	0	0	0
Liabilities [Abstract]
Deposits	0	0	0
Subordinated Debentures	0	0	0
Accrued Interest Payable	$ 0	$ 0	$ 0

Dividends and Basic Earnings _3

Dividends and Basic Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Dividends [Abstract]
Cash dividends declared per share of common stock (in dollars per share)	$ 0	$ 0
Basic Earnings per Common Share [Abstract]
Net Income	$ 13,549	$ 9,941
Weighted Average Number of Common Shares Outstanding (in shares)	784,438	812,304
Basic Earnings Per Common Share Amount (in dollars per share)	$ 17.27	$ 12.24

Leases (Details)

Leases (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Operating Leases [Abstract]
Operating lease ROU assets	$ 4,550
Operating lease liability	4,564
Operating lease cost	$ 207
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) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Cash Paid for Amounts Included in the Measurement of Lease Liabilities [Abstract]
Operating Cash Flow from Operating Leases	$ 196
Right-of-Use Assets Obtained in Exchange for New Operating Lease Liabilities	$ 4,729
Weighted-Average Remaining Lease Term - Operating Leases	7 years 8 months 12 days
Weighted-Average Discount Rate - Operating Leases	2.80%

Leases, Maturity of Remaining L

Leases, Maturity of Remaining Lease Liability (Details) $ in Thousands	Mar. 31, 2019USD ($)
Maturity of Remaining Lease Liability [Abstract]
2019	$ 587
2020	792
2021	694
2022	548
2023	542
2024 and thereafter	1,916
Total Lease Payments	5,079
Less: Interest	(515)
Present Value of Lease Liabilities	$ 4,564

Leases, Lessor - Direct Financi

Leases, Lessor - Direct Financing Leases (Details) $ in Millions	Mar. 31, 2019USD ($)
Lessor - Direct Financing Leases [Abstract]
Net investment in direct financing leases	$ 106.9
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	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2017
The Tax Act [Abstract]
Corporate income tax rate	21.00%
ASU 2018-02 [Member] | AOCI [Member]
The Tax Act [Abstract]
Net reclassification between AOCI and retained earnings		$ (144)
ASU 2018-02 [Member] | Retained Earnings [Member]
The Tax Act [Abstract]
Net reclassification between AOCI and retained earnings		$ 144