Middlefield Banc (MBCN) 10-Q 15 May 23 2023 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2023	May 12, 2023
Document Information [Line Items]
Entity Central Index Key	0000836147
Entity Registrant Name	Middlefield Banc Corp.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2023
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	001-36613
Entity Incorporation, State or Country Code	OH
Entity Tax Identification Number	34-1585111
Entity Address, Address Line One	15985 East High Street
Entity Address, City or Town	Middlefield
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	44062-0035
City Area Code	440
Local Phone Number	632-1666
Title of 12(b) Security	Common Stock, Without Par Value
Trading Symbol	MBCN
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		8,088,793

Consolidated Balance Sheet (Una

Consolidated Balance Sheet (Unaudited) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 59,609,000	$ 51,404,000
Federal funds sold	7,048,000	2,405,000
Cash and cash equivalents	66,657,000	53,809,000
Equity securities, at fair value	777,000	915,000
Investment securities available for sale, at fair value	169,605,000	164,967,000
Loans held for sale	104,000	0
Loans:
Outstanding balance	1,382,847,000	1,352,872,000
Less: allowance for credit losses	20,162,000	14,438,000
Net loans	1,362,685,000	1,338,434,000
Premises and equipment, net	21,775,000	21,961,000
Goodwill	31,735,000	31,735,000
Core deposit intangibles	7,436,000	7,701,000
Bank-owned life insurance	34,015,000	33,811,000
Other real estate owned	5,792,000	5,821,000
Accrued interest receivable and other assets	27,258,000	28,528,000
TOTAL ASSETS	1,727,839,000	1,687,682,000
LIABILITIES
Noninterest-bearing demand	474,977,000	503,907,000
Interest-bearing demand	196,086,000	164,677,000
Money market	221,723,000	187,498,000
Savings	287,859,000	307,917,000
Time	244,962,000	238,020,000
Total deposits	1,425,607,000	1,402,019,000
Short-term borrowings:
Federal Home Loan Bank advances	85,000,000	65,000,000
Other borrowings	12,010,000	12,059,000
Accrued interest payable and other liabilities	10,057,000	10,913,000
TOTAL LIABILITIES	1,532,674,000	1,489,991,000
STOCKHOLDERS' EQUITY
Common stock, no par value; 10,000,000 shares authorized, 9,924,245 and 9,916,466 shares issued; 8,088,793 and 8,245,235 shares outstanding	161,248,000	161,029,000
Retained earnings	93,024,000	94,154,000
Accumulated other comprehensive loss	(19,253,000)	(22,144,000)
Treasury stock, at cost; 1,835,452 and 1,671,231 shares	(39,854,000)	(35,348,000)
TOTAL STOCKHOLDERS' EQUITY	195,165,000	197,691,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,727,839,000	1,687,682,000
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Loans:
Outstanding balance	185,661,000	191,748,000
Less: allowance for credit losses	2,678,000	2,203,000
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Loans:
Outstanding balance	394,331,000	380,580,000
Less: allowance for credit losses	4,712,000	5,597,000
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Loans:
Outstanding balance	63,892,000	58,251,000
Less: allowance for credit losses	1,371,000	662,000
Residential Portfolio Segment [Member]
Loans:
Outstanding balance	306,179,000	296,308,000
Less: allowance for credit losses	4,967,000	2,047,000
Commercial And Industrial [Member]
Loans:
Outstanding balance	195,024,000	195,602,000
Less: allowance for credit losses	3,819,000	1,483,000
Home Equity Lines of Credit [Member]
Loans:
Outstanding balance	126,555,000	128,065,000
Less: allowance for credit losses	809,000	1,753,000
Construction and Other [Member]
Loans:
Outstanding balance	103,389,000	94,199,000
Less: allowance for credit losses	1,553,000	609,000
Consumer Portfolio Segment [Member]
Loans:
Outstanding balance	7,816,000	8,119,000
Less: allowance for credit losses	$ 253,000	$ 84,000

Consolidated Balance Sheet (U_2

Consolidated Balance Sheet (Unaudited) (Parentheticals) - $ / shares $ / shares in Thousands	Mar. 31, 2023	Dec. 31, 2022
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares issued (in shares)	9,924,245	9,916,466
Common stock, shares outstanding (in shares)	8,088,793	8,245,235
Treasury Stock, Common, Shares	1,835,452	1,671,231

Consolidated Statement of Incom

Consolidated Statement of Income (Unaudited) - USD ($)		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
INTEREST AND DIVIDEND INCOME
Interest and fees on loans		$ 18,275,000	$ 10,985,000
Interest-earning deposits in other institutions		250,000	24,000
Federal funds sold		253,000	3,000
Investment securities:
Taxable interest		458,000	443,000
Tax-exempt interest		980,000	784,000
Dividends on stock		88,000	24,000
Total interest and dividend income		20,304,000	12,263,000
INTEREST EXPENSE
Deposits		2,990,000	726,000
Short-term borrowings		653,000	0
Other borrowings		155,000	69,000
Total interest expense		3,798,000	795,000
NET INTEREST INCOME		16,506,000	11,468,000
Provision for credit losses		507,000	0
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES		15,999,000	11,468,000
NONINTEREST INCOME
(Loss) gain on equity securities	[1]	(138,000)	33,000
Gain on other real estate owned	[2]	2,000	0
Earnings on bank-owned life insurance	[1]	200,000	106,000
Gain on sale of loans	[1]	23,000	3,000
Revenue from investment services		186,000	141,000
Gross rental income		102,000	0
Total noninterest income		1,680,000	1,403,000
NONINTEREST EXPENSE
Salaries and employee benefits		5,852,000	4,386,000
Occupancy expense		696,000	505,000
Equipment expense		317,000	315,000
Data processing and information technology costs		1,070,000	844,000
Ohio state franchise tax		385,000	293,000
Federal deposit insurance expense		120,000	50,000
Professional fees		538,000	455,000
Advertising expense		486,000	228,000
Software amortization expense		26,000	48,000
Core deposit intangible amortization		265,000	77,000
Gross other real estate owned expenses		132,000	8,000
Merger-related costs		245,000	0
Other expense		1,662,000	1,057,000
Total noninterest expense		11,794,000	8,266,000
Income before income taxes		5,885,000	4,605,000
Income taxes		989,000	772,000
NET INCOME		$ 4,896,000	$ 3,833,000
EARNINGS PER SHARE
Basic (in dollars per share)		$ 0.60	$ 0.65
Diluted (in dollars per share)		$ 0.60	$ 0.65
Deposit Account [Member]
NONINTEREST INCOME
Noninterest income revenue		$ 987,000	$ 914,000
Financial Service, Other [Member]
NONINTEREST INCOME
Noninterest income revenue		$ 318,000	$ 206,000
[1]Not within scope of ASC 606[2]Recognized within noninterest expense

Consolidated Statement of Compr

Consolidated Statement of Comprehensive (Loss) Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net income	$ 4,896	$ 3,833
Other comprehensive income (loss):
Net unrealized holdingon gain (loss) available-for-sale investment securities	3,659	(12,831)
Tax effect	(768)	2,695
Total other comprehensive income (loss)	2,891	(10,136)
Comprehensive income (loss)	$ 7,787	$ (6,303)

Consolidated Statement of Chang

Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Dec. 31, 2021			7,330,548
Balance at Dec. 31, 2021			$ 87,131	$ 83,971	$ 3,462	$ (29,229)	$ 145,335
Net income				3,833			3,833
Other comprehensive income (loss)					(10,136)		(10,136)
Stock-based compensation, net (in shares)			16,978
Stock-based compensation, net			$ 431				431
Treasury shares acquired						(819)	(819)
Cash dividends				(1,000)			(1,000)
Balance (in shares) at Mar. 31, 2022			7,347,526
Balance at Mar. 31, 2022			$ 87,562	86,804	(6,674)	(30,048)	$ 137,644
Balance (in shares) at Dec. 31, 2022			9,916,466				8,245,235
Balance (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2022	$ (4,421)	$ (4,421)
Balance at Dec. 31, 2022			$ 161,029	94,154	(22,144)	(35,348)	$ 197,691
Net income				4,896			4,896
Other comprehensive income (loss)					2,891		2,891
Stock-based compensation, net (in shares)			7,779
Stock-based compensation, net			$ 219				219
Treasury shares acquired						(4,506)	(4,506)
Cash dividends				(1,605)			$ (1,605)
Balance (in shares) at Mar. 31, 2023			9,924,245				8,088,793
Balance at Mar. 31, 2023			$ 161,248	$ 93,024	$ (19,253)	$ (39,854)	$ 195,165

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Retained Earnings [Member]
Cash dividends per share (in dollars per share)	$ 0.20	$ 0.17
Treasury acquired, shares (in shares)	164,221	32,150

Consolidated Statement of Cash

Consolidated Statement of Cash Flows (Unaudited) - USD ($)		3 Months Ended		12 Months Ended
		Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
OPERATING ACTIVITIES
Net income		$ 4,896,000	$ 3,833,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses		507,000	0
Loss (gain) on equity securities	[1]	138,000	(33,000)
Depreciation and amortization of premises and equipment, net		387,000	334,000
Software amortization expense		26,000	48,000
Financing lease amortization expense		62,000	3,000
Amortization of premium and discount on investment securities, net		150,000	150,000
Accretion of deferred loan fees, net		(256,000)	(805,000)
Amortization of core deposit intangibles		265,000	77,000
Stock-based compensation income, net		30,000	117,000
Origination of loans held for sale		(1,575,000)	(350,000)
Proceeds from sale of loans		1,494,000	611,000
Gain on sale of loans		(23,000)	(3,000)
Earnings on bank-owned life insurance	[1]	(200,000)	(106,000)
Deferred income tax		(381,000)	(360,000)
Other real estate owned gains		(2,000)	0
Decrease (increase) in accrued interest receivable		25,000	(50,000)
Increase (decrease) in accrued interest payable		230,000	(2,000)
Other, net		665,000	(1,002,000)
Net cash provided by operating activities		6,438,000	2,462,000
INVESTING ACTIVITIES
Proceeds from repayments and maturities		871,000	2,229,000
Purchases		(2,000,000)	(20,227,000)
(Increase) decrease in loans, net		(29,763,000)	5,710,000
Proceeds from the sale of other real estate owned		31,000	0
Purchase of premises and equipment		(263,000)	(68,000)
Purchase of restricted stock		(1,687,000)	0
Redemption of restricted stock		1,793,000	0
Net cash used in investing activities		(31,018,000)	(12,356,000)
FINANCING ACTIVITIES
Net increase in deposits		23,588,000	562,000
Increase in short-term borrowings, net		20,000,000	0
Repayment of other borrowings		(49,000)	(65,000)
Repurchase of treasury shares		(4,506,000)	(819,000)
Cash dividends		(1,605,000)	(1,000,000)
Net cash provided by (used in) financing activities		37,428,000	(1,322,000)
Increase (decrease) in cash and cash equivalents		12,848,000	(11,216,000)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD		53,809,000	119,494,000	$ 119,494,000
CASH AND CASH EQUIVALENTS AT END OF PERIOD		66,657,000	108,278,000	$ 53,809,000
SUPPLEMENTAL INFORMATION
Interest on deposits and borrowings		3,568,000	797,000
Transfers from loans held for sale to loans held for investment		0	784,000
Increase in finance lease assets included in premises and equipment		0	(139,000)
Increase in finance lease liabilities included in other borrowings		$ 0	$ 139,000
[1]Not within scope of ASC 606

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Significant Accounting Policies [Text Block]	NOTE 1 The consolidated financial statements of Middlefield Banc Corp. ("Company") include its bank subsidiary, The Middlefield Banking Company (“MBC” or “Middlefield Bank”), and a nonbank asset resolution subsidiary EMORECO, Inc. The consolidated financial statements also include the accounts of MBC’s subsidiaries, Middlefield Investments, Inc. (“MI”) and MB Insurance Services (“MIS”). All significant inter-company items have been eliminated. On March 13, 2019, March 31, 2023, may may not first 2022, March 31, 2023, December 1, 2022, no On December 1, 2022, six The unaudited condensed consolidated financial statements have been prepared in conformity with the instructions to Form 10 10 X. not 10 December 31, 2022. not may In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts and liabilities as of the balance sheet date and revenues and expenses for the period. Actual results could differ from those estimates. Summary of Significant Accounting Policies The Company’s significant accounting policies involving the more significant judgments and assumptions used in the preparation of the consolidated financial statements as of March 31, 2023, December 31, 2022. Management determines the appropriate classification of debt securities at the time of purchase and re-evaluates such designation as of each balance sheet date. Investment securities classified as available for sale are those securities that the Bank intends to hold for an indefinite period of time but not Investment securities classified as held to maturity are those securities the Bank has both the intent and ability to hold to maturity regardless of changes in market conditions, liquidity needs, or changes in general economic conditions. These securities are carried at cost, adjusted for the amortization of premium and accretion of discount, and computed by a method that approximates the interest method over the terms of the securities. As of March 31, 2023, not Equity securities are measured at fair value with changes in fair value recognized in net income. Allowance for Credit Losses Available for Sale Securities The Bank measures expected credit losses on available-for-sale debt securities when the Bank intends to sell, or when it is more likely than not not not The allowance for credit losses on available-for-sale debt securities is included within Investment securities available for sale on the consolidated balance sheet. Changes in the allowance for credit losses are recorded within provision for credit losses on the consolidated statement of income. Losses are charged against the allowance when the Bank believes the collectability of an available-for-sale security is in jeopardy or when either of the criteria regarding intent or requirement to sell is met. Accrued interest receivable on available-for-sale debt securities totaled $1.6 million at March 31, 2023 90 Credit Losses on Investment Securities Prior to adopting ASU 2016 13 The Bank adopted ASU No. 2016 13 January 1, 2023. December 31, 2022 December 31, 2022 10 December 31, 2022 Investment securities are classified at the time of purchase, based on management’s intention and ability, as securities held to maturity or securities available for sale. Debt securities acquired with the intent and ability to hold to maturity are stated at cost, adjusted for amortization of premium and accretion of discount, computed using a level yield method, and recognized as interest income adjustments. Certain other debt securities have been classified as available for sale to serve principally as a source of liquidity. Unrealized holding gains and losses for available-for-sale securities are reported as a separate component of stockholders’ equity, net of tax, until realized. Realized security gains and losses are computed using the specific identification method. Interest and dividends on investment securities are recognized as income when earned. For 2022, Securities are evaluated quarterly and more frequently when economic or market conditions warrant such an evaluation to determine whether a decline in their value is other-than-temporary. For debt securities, management considers whether the present value of cash flows expected to be collected is less than the security’s amortized cost basis (the difference defined as the credit loss), the magnitude and duration of the decline, the reasons underlying the decline and the Bank’s intent to sell the security or whether it is more likely than not not not not Loans Receivable Loans receivable that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are stated at their outstanding unpaid principal balances, net of an allowance for loan losses and any deferred fees or costs. Accrued interest receivable totaled $4.3 million at March 31, 2023 The loans receivable portfolio is segmented into commercial and consumer loans. Commercial loans consist of the following classes: commercial construction, commercial and industrial loans, and commercial real estate loans. Consumer loans consist of the following classes: residential real estate loans, home equity loans, and consumer loans. For all classes of loans receivable, the accrual of interest is discontinued when the contractual payment of principal or interest has become 90 may no Purchased Credit Deteriorated (PCD) Loans The Bank has purchased loans, some of which have experienced more than insignificant credit deterioration since origination. The Bank reviews many factors to make the determination, including reviewing whether the loan is performing, delinquency status, and changes in risk rating to determine if the loan exhibits more than insignificant credit deterioration. PCD loans are recorded at the amount paid. An allowance for credit losses is determined using the same methodology as other loans held for investment. The initial allowance for credit losses determined on a collective basis is allocated to individual loans. The sum of the loan’s purchase price and allowance for credit losses becomes its initial amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. Subsequent changes to the allowance for credit losses are recorded through credit loss expense. Allowance for Credit Losses (ACL) Loans The allowance for credit losses is a valuation reserve established and maintained by charges against income and is deducted from the amortized cost basis of loans to present the net amount expected to be collected on the loans. Loans, or portions thereof, are charged off against the ACL when they are deemed uncollectible. Expected recoveries do not The ACL is an estimate of expected credit losses, measured over the contractual life of a loan, that considers our historical loss experience, current conditions and forecasts of future economic conditions. Determination of an appropriate ACL is inherently subjective and may Management uses a discounted cash flow (DCF) model to calculate the present value of the expected cash flows for pools of loans and leases that share similar risk characteristics and compares the results of this calculation to the amortized cost basis to determine its allowance for credit loss balance. The contractual term used in projecting the cash flows of a loan is based on the maturity date of a loan, and is adjusted for prepayment or curtailment assumptions which may The key inputs to the DCF model are ( 1 2 3 4 5 6 7 Probability of Default (PD) In order to incorporate economic factors into forecasting within the DCF model, management elected to use the Loss Driver method to generate the PD rate inputs. The Loss Driver method analyzes how one Loss Given Default (LGD) Management elected to use the Frye Jacobs parameter for determining the LGD input, which is an estimation technique that derives a LGD input from segment specific risk curves that correlates LGD with PD. Prepayment and Curtailment rates Prepayment Rates: Loan level transaction data is used to calculate a semi-annual prepayment rate. Those semi-annual rates are annualized and the average of the annualized rates is used in the DCF calculation for fixed payment or term loans. Rates are calculated for each pool. Curtailment Rates: Loan level transaction data is used to calculate annual curtailment rates using any available historical loan level data. The average of the historical rates is used in the DCF model for interest only payment or line of credit type loans. Rates are calculated for each pool. Reasonable and Supportable Forecasts The forecast data used in the DCF model is obtained via a subscription to a widely recognized and relied upon company who publishes various forecast scenarios. Management evaluates the various scenarios to determine a reasonable and supportable scenario. Forecast Reversion Period Management uses forecasts to predict how economic factors will perform and has determined to use a four eight Expected Recoveries on Charged-off Loans Management performs an analysis to estimate recoveries that could be reasonably expected based on historical experience in order to account for expected recoveries on loans that have already been fully charged-off and are not Discount Rate The effective interest rate of the underlying loans and leases of the Corporation serves as the discount rate applied to the expected periodic cash flows. Management adjusts the effective interest rate used to discount expected cash flows to incorporate expected prepayments. Individual Evaluation Management evaluates individual instruments for expected credit losses when those instruments do not not Management considers a financial asset as collateral-dependent when the debtor is experiencing financial difficulty and repayment is expected to be provided substantially through the sale or operation of the collateral, based on management's assessment as of the reporting date. The allowance for credit losses is measured on a collective (pool) basis when similar risk characteristics exist. The Company’s loan portfolio is segmented to a level that allows management to monitor risk and performance. The portfolio is segmented into Commercial Real Estate (“CRE”), which is further segmented into Owner Occupied (“CRE OO”), Non-owner Occupied (“CRE NOO”), and Multifamily Residential, Residential Real Estate (“RRE”), Commercial and Industrial (“C&I”), Home Equity Lines of Credit (“HELOC”), Construction and Other (“Construction”), and Consumer Installment Loans. The commercial real estate loan segments consist of loans made to finance the activities of commercial real estate owners and operators and certain agricultural loans. The residential real estate and HELOC loan segments consist of loans made to finance the activities of residential homeowners. The C&I loan segment consists of loans made to finance the activities of commercial customers and certain agricultural loans. The consumer loan segment consists primarily of installment loans and overdraft lines of credit connected with customer deposit accounts. The increases in the allowance for credit loss for the C&I, RRE, and HELOC portfolios were partially offset by a decrease in the allowance for the CRE, Construction, and Consumer Installment portfolios. Historical credit loss experience is the basis for the estimation of expected credit losses. We apply historical loss rates to pools of loans with similar risk characteristics. After consideration of the historic loss calculation, management applies qualitative adjustments to reflect the current conditions and reasonable and supportable forecasts not The Bank has elected to exclude accrued interest receivable from the measurement of its ACL. When a loan is placed on non-accrual status, any outstanding accrued interest is reversed against interest income. The ACL for individual loans begins with the use of normal credit review procedures to identify whether a loan no 1 2 3 not three 1 2 3 not Allowance for Loan Losses Prior to adopting ASU 2016 13 Prior to the adoption of ASU 2016 13 326 The allowance for loan and lease losses represents the amount that management estimates is adequate to provide for probable loan losses inherent in the loan portfolio. The allowance method is used in providing for loan losses. Accordingly, all loan losses are charged to the allowance, and all recoveries are credited to it. The allowance for loan and lease losses is established through a provision for loan losses charged to operations. The provision is based on management’s periodic evaluation of the adequacy of the allowance for loan and lease losses, which encompasses the overall risk characteristics of the various portfolio segments, experience with losses, the impact of economic conditions on borrowers, and other relevant factors. The estimates used in determining the adequacy of the allowance for loan and lease losses, including the amounts and timing of future cash flows expected on impaired loans, are particularly susceptible to a significant change in the near term. The allowance consists of specific, general, and unallocated components. The specific component relates to loans that are classified as impaired. For loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers pools of loans by loan class including commercial loans not ● national and local economic trends and conditions; ● levels of and trends in delinquency rates and nonaccrual loans; ● trends in volumes and terms of loans; ● effects of changes in lending policies; ● experience, ability, and depth of lending staff; ● value of underlying collateral; ● and concentrations of credit from a loan type, industry, and/or geographic standpoint. A majority of the Bank’s loan assets are loans to business owners of many types. The Bank makes commercial loans for real estate development and other business purposes required by the customer base. The Bank’s credit policies determine advance rates against the different forms of collateral that can be pledged against commercial loans. Typically, the majority of loans will be limited to a percentage of their underlying collateral values such as real estate values, equipment, eligible accounts receivable, and inventory. Individual loan advance rates may not 80 Residential mortgages and home equity loans are secured by the borrower’s residential real estate in either a first second 30 20 A loan is considered impaired when it is probable the borrower will not 89 not not first The Bank originates commercial and residential construction loans to developers and builders and, in some cases, to other commercial borrowers for approved construction projects. These loans are typically structured on a non-revolving basis and draws of funds are dependent on successfully completed and verified progress of the project. These loans are generally secured by the real estate to be developed and may may For commercial loans secured by real estate, estimated fair values are determined primarily through third For commercial and industrial loans secured by non-real estate collateral, such as accounts receivable, inventory, and equipment, estimated fair values are determined based on the borrower’s financial statements, inventory reports, accounts receivable agings, equipment appraisals, or invoices. Indications of value from these sources are generally discounted based on the age of the financial information or the quality of the assets. Mortgage loans secured by one four Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, the Bank does not Loans whose terms are modified are classified as troubled debt restructurings if the Bank grants such borrowers concessions and it is deemed that those borrowers are experiencing financial difficulty. Concessions granted under a troubled debt restructuring generally involve a temporary reduction in interest rate or an extension of a loan’s stated maturity date. Non-accrual troubled debt restructurings are restored to accrual status if principal and interest payments, under the modified terms, are current for six The allowance calculation methodology includes further segregation of loan classes into risk rating categories. The borrower’s overall financial condition, repayment sources, guarantors, and value of collateral, if appropriate, are evaluated annually for commercial loans or when credit deficiencies arise, such as delinquent loan payments, for commercial and consumer loans. Credit quality risk ratings include regulatory classifications of special mention, substandard, doubtful, and loss. Loans classified as special mention have potential weaknesses that deserve management’s close attention. If uncorrected, the potential weaknesses may not In addition, federal regulatory agencies, as an integral part of their examination process, periodically review the Bank’s allowance for loan losses and may may not Allowance for Credit Losses on Off-Balance Sheet Credit Exposures The Bank estimates expected credit losses over the contractual period in which the Bank is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Bank. The allowance for credit losses on off-balance sheet credit exposures is adjusted through credit loss expense. The estimate includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life. Accounting Pronouncements Adopted in 2023 In June 2016, 2016 13, Financial Instruments Credit Losses: Measurement of Credit Losses on Financial Instruments January 1, 2023, March 31, 2023, The Bank adopted this guidance, and subsequent related updates, using the modified retrospective approach for all financial assets measured at amortized cost, including loans, available-for-sale debt securities and unfunded commitments. On January 1, 2023, The Bank adopted the provisions of ASC 326 310 30 not January 1, 2023, The Bank adopted the provisions of ASC 326 January 1, 2023 no The following table illustrates the pre-tax impact of the adoption of this ASU: January 1, 2023 Allowance for Credit Losses Pre- adoption Adoption Impact As Reported ACL on loans Commercial real estate: Owner occupied $ 2,203 $ 811 $ 3,014 Non-owner occupied 5,597 (1,206 ) 4,391 Multifamily 662 591 1,253 Residential real estate 2,047 2,744 4,791 Commercial and industrial 1,483 2,320 3,803 Home equity lines of credit 1,753 (1,031 ) 722 Construction and other 609 956 1,565 Consumer installment 84 197 281 Total $ 14,438 $ 5,382 $ 19,820 ACL on unfunded commitments $ - (683 ) (683 ) In March 2022, No. 2022 02, "Financial Instruments - Credit Losses (Topic 326 January 1, 2023 not Recent Accounting Pronouncements In January 2017, 2017 04, Simplifying the Test for Goodwill Impairment 2 2, not December 15, 2022, not In January 2020, 2020 04, Reference Rate Reform (Topic 848 March 2020 not not one December 31, 2022. not Reclassification of Comparative Amounts Certain comparative amounts for prior years have been reclassified to conform to current-year presentations. Such reclassifications did not

Note 2 - Revenue Recognition

Note 2 - Revenue Recognition	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	NOTE 2 REVENUE RECOGNITION Following ASC Topic 606, Revenue from Contracts with Customers (Topic 606 not 606. The main types of noninterest income within the scope of the standard are as follows: Service charges on deposit accounts Gains on sale of other real estate owned ( “ OREO ” ) not Revenue from investment services Miscellaneous Fee income The following table depicts the disaggregation of revenue derived from contracts with customers to depict the nature, amount, timing, and uncertainty of revenue and cash flows: For the Three Months Ended Noninterest Income 2023 2022 (Dollar amounts in thousands) Service charges on deposit accounts: Overdraft fees $ 246 $ 201 ATM banking fees 472 309 Service charges and other fees 269 404 (Loss) gain on equity securities (a) (138 ) 33 Gain on other real estate owned 2 - Earnings on bank-owned life insurance (a) 200 106 Gain on sale of loans (a) 23 3 Revenue from investment services 186 141 Miscellaneous Fee income 86 62 Gross rental income 102 - Other income 232 144 Total noninterest income $ 1,680 $ 1,403 (a) Not 606

Note 3 - Stock-based Compensati

Note 3 - Stock-based Compensation	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Compensation and Employee Benefit Plans [Text Block]	NOTE 3 The Company had no March 31, 2023 2022. There was no three March 31, 2023. The following table presents the activity during the three March 31, 2023, Weighted- average Grant Date Fair Units Value Per Unit Nonvested at January 1, 2023 63,646 $ 24.34 Granted 29,781 27.40 Vested (8,003 ) 26.09 Forfeited (15,205 ) 26.09 Nonvested at March 31, 2023 70,219 $ 25.29 Expected to vest as of March 31, 2023 66,416 $ 25.12 The Company recognizes restricted stock forfeitures in the period they occur. Share-based compensation expense of $45,000 and $117,000 was recognized for the three March 31, 2023, 2022, March 31, 2023, 2022, Total unrecognized stock compensation cost related to non-vested share-based compensation on restricted stock as of March 31, 2023, 2023, 2024, 2025, 2026.

Note 4 - Earnings Per Share

Note 4 - Earnings Per Share	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Earnings Per Share [Text Block]	NOTE 4 The Company provides a dual presentation of basic and diluted earnings per share. Basic earnings per share is calculated by dividing net income by the average shares outstanding. Diluted earnings per share adds the dilutive effects of stock options and restricted stock to average shares outstanding. The following table sets forth the composition of the weighted-average common shares (denominator) used in the basic and diluted earnings-per-share computation. For the Three Months Ended March 31, 2023 2022 Weighted-average common shares issued 9,921,529 7,338,283 Average treasury stock shares (1,782,758 ) (1,459,258 ) Weighted-average common shares and common stock equivalents used to calculate basic earnings per share 8,138,771 5,879,025 Additional common stock equivalents (stock options and restricted stock) used to calculate diluted earnings per share 13,858 10,811 Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share 8,152,629 5,889,836 Outstanding on March 31, 2023, Outstanding on March 31, 2022, When shares recognized as equity are repurchased, the amount of the consideration paid, which includes directly attributable costs, is recognized as a deduction from equity. Repurchased shares are classified as treasury shares and are presented in the treasury share reserve. The reserve for the Company’s treasury shares comprises the cost of the Company’s shares held by the Company. As of March 31, 2023, December 31, 2022.

Note 5 - Fair Value Measurement

Note 5 - Fair Value Measurements	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Fair Value Disclosures [Text Block]	NOTE 5 Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for an asset or liability in an orderly transaction between market participants at the measurement date. GAAP establishes a fair value hierarchy that prioritizes the use of inputs used in valuation methodologies into the following levels: Level I: Quoted prices are available in active markets for identical assets or liabilities as of the reported date. Level II: Pricing inputs are other than the quoted prices in active markets, which are either directly or indirectly observable as of the reported date. The nature of these assets and liabilities includes items for which quoted prices are available but traded less frequently and items that are fair-valued using other financial instruments, the parameters of which can be directly observed. Level III: Assets and liabilities that have little to no not two This hierarchy requires the use of observable market data when available. The following tables present the assets measured on a recurring basis on the Consolidated Balance Sheet at their fair value by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. March 31, 2023 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: Subordinated debt $ - $ 23,707 $ 8,806 $ 32,513 Obligations of states and political subdivisions - 129,759 - 129,759 Mortgage-backed securities in government-sponsored entities - 7,333 - 7,333 Total debt securities - 160,799 8,806 169,605 Equity securities in financial institutions 777 - - 777 Total $ 777 $ 160,799 $ 8,806 $ 170,382 December 31, 2022 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: Subordinated debt $ - $ 21,427 $ 8,737 $ 30,164 Obligations of states and political subdivisions - 127,334 - 127,334 Mortgage-backed securities in government-sponsored entities - 7,469 - 7,469 Total debt securities - 156,230 8,737 164,967 Equity securities in financial institutions 915 - - 915 Total $ 915 $ 156,230 $ 8,737 $ 165,882 Investment Securities Available for Sale While the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of specific financial instruments could result in a different estimate of fair value at the reporting date. Management uses its best judgment in estimating the fair value of the Company’s financial instruments; however, there are inherent weaknesses in any estimation technique. Therefore, for substantially all financial instruments, the fair value estimates herein are not not may Equity Securities no not The following table presents the fair value reconciliation of Level 3 (Dollar amounts in thousands) Subordinated debt Balance as of January 1, 2023 $ 8,737 Transfers into Level III (1) - Transfers out of Level III (1) - Net change in unrealized loss on available-for-sale investment securities 69 Balance as of March 31, 2023 $ 8,806 ( 1 Transfers between hierarchy levels are based on the availability of sufficient observable inputs to meet Level II versus Level II criteria. The level designation of each financial instrument is reassessed at the end of each period. The following tables present the assets measured on a non-recurring basis on the Consolidated Balance Sheet at their fair value by level within the fair value hierarchy. Collateral-dependent individually analyzed loans are carried at fair value if they have been charged down to fair value or if a specific valuation allowance has been established. A new cost basis is established at the time a property is initially recorded in OREO. OREO properties are carried at fair value if a devaluation has been taken to the property’s value after the initial measurement. March 31, 2023 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Individually analyzed loans held for investment $ - $ - $ 16,842 $ 16,842 December 31, 2022 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ - $ - $ 1,143 $ 1,143 Other real estate owned - - 5,792 5,792 Individually analyzed Loans third may not not March 31, 2023. Impaired Loans third may not not December 31, 2022. Other Real Estate Owned (OREO) no not not may The following tables present additional quantitative information about assets measured at fair value on a non-recurring basis and for which the Company uses Level III inputs to determine fair value: Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Range (Weighted Fair Value Estimate Valuation Techniques Unobservable Input Average) March 31, 2023 Individually analyzed loans held for investment $ 16,842 Appraisal of collateral (1) Appraisal adjustments (2) 20.4% to 31.1% (20.4%) Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Range (Weighted Fair Value Estimate Valuation Techniques Unobservable Input Average) December 31, 2022 Impaired loans $ 1,143 Appraisal of collateral (1) Appraisal adjustments (2) 12.0% Other real estate owned $ 5,792 Appraisal of collateral (1) Appraisal adjustments (2) 8.4% ( 1 Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level III inputs that are not ( 2 Appraisals may The estimated fair value of the Company’s financial instruments not March 31, 2023 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Net loans $ 1,362,685 $ - $ - $ 1,317,954 $ 1,317,954 Financial liabilities: Deposits $ 1,425,607 $ 1,180,645 $ - $ 1,239,085 $ 2,419,730 Other borrowings $ 12,010 $ - $ - $ 12,010 $ 12,010 December 31, 2022 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Net loans $ 1,338,434 $ - $ - $ 1,298,814 $ 1,298,814 Financial liabilities: Deposits $ 1,402,019 $ 1,163,999 $ - $ 231,218 $ 1,395,217 Other borrowings $ 12,059 $ - $ - $ 12,059 $ 12,059 Included within other borrowings is an $8.2 million note payable, which matures in December 2037. In addition to the financial instruments included in the above tables, cash and cash equivalents, bank-owned life insurance, Federal Home Loan Bank stock, accrued interest receivable, short-term borrowings, and accrued interest payable, are carried at cost, which approximates the fair value of the instruments.

Note 6 - Accumulated Other Comp

Note 6 - Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Comprehensive Income (Loss) Note [Text Block]	NOTE 6 ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The following table presents the changes in accumulated other comprehensive income (loss) (“AOCI”) by component, net of tax, for the three March 31, 2023, 2022, Unrealized (losses)/gains on available-for-sale securities (a) (Dollars in thousands) Balance as of December 31, 2022 $ (22,144 ) Other comprehensive income 2,891 Balance at March 31, 2023 $ (19,253 ) Balance as of December 31, 2021 $ 3,462 Other comprehensive loss (10,136 ) Balance at March 31, 2022 $ (6,674 ) (a) All amounts are net of tax. Amounts in parentheses indicate debits to AOCI. There were no other reclassifications of amounts from accumulated other comprehensive income for the three March 31, 2023, 2022.

Note 7 - Investment and Equity

Note 7 - Investment and Equity Securities	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	NOTE 7 INVESTMENT AND EQUITY SECURITIES The amortized cost and fair values of investment securities available for sale are as follows: March 31, 2023 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value Subordinated debt $ 34,300 $ 8 $ (1,795 ) $ 32,513 Obligations of states and political subdivisions: Taxable 500 - - 500 Tax-exempt 151,204 82 (22,027 ) 129,259 Mortgage-backed securities in government-sponsored entities 7,973 1 (641 ) 7,333 Total $ 193,977 $ 91 $ (24,463 ) $ 169,605 December 31, 2022 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value Subordinated debt $ 32,300 $ 3 $ (2,139 ) $ 30,164 Obligations of states and political subdivisions: Taxable 500 - - 500 Tax-exempt 151,896 49 (25,111 ) 126,834 Mortgage-backed securities in government-sponsored entities 8,302 - (833 ) 7,469 Total $ 192,998 $ 52 $ (28,083 ) $ 164,967 Equity securities totaled $777,000 and $915,000 at March 31, 2023 December 31, 2022, The Company recognized a net (loss) gain on equity investments of ($138,000) and $33,000 for the three March 31, 2023 2022, No The amortized cost and fair value of debt securities at March 31, 2023, may Amortized Fair (Dollar amounts in thousands) Cost Value Due in one year or less $ 570 $ 570 Due after one year through five years 2,935 2,870 Due after five years through ten years 47,291 45,336 Due after ten years 143,181 120,829 Total $ 193,977 $ 169,605 There were no securities sold during the three March 31, 2023, 2022, Investment securities with an approximate carrying value of $91.2 million and $89.9 million on March 31, 2023, December 31, 2022, The following table shows the Company’s gross unrealized losses and fair value, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position. March 31, 2023 Less than Twelve Months Twelve Months or Greater Total Gross Gross Gross Fair Unrealized Fair Unrealized Fair Unrealized (Dollar amounts in thousands) Value Losses Value Losses Value Losses Subordinated debt $ 13,082 $ (418 ) $ 17,923 $ (1,377 ) $ 31,005 $ (1,795 ) Obligations of states and political subdivisions: Tax-exempt 22,396 (962 ) 89,741 (21,065 ) 112,137 (22,027 ) Mortgage-backed securities in government-sponsored entities 609 (13 ) 6,463 (628 ) 7,072 (641 ) Total $ 36,087 $ (1,393 ) $ 114,127 $ (23,070 ) $ 150,214 $ (24,463 ) December 31, 2022 Less than Twelve Months Twelve Months or Greater Total Gross Gross Gross Fair Unrealized Fair Unrealized Fair Unrealized (Dollar amounts in thousands) Value Losses Value Losses Value Losses Subordinated debt $ 12,638 $ (1,129 ) $ 8,790 $ (1,010 ) $ 21,428 $ (2,139 ) Obligations of states and political subdivisions: Tax-exempt 75,343 (10,488 ) 41,138 (14,623 ) 116,481 (25,111 ) Mortgage-backed securities in government-sponsored entities 6,153 (480 ) 1,316 (353 ) 7,469 (833 ) Total $ 94,134 $ (12,097 ) $ 51,244 $ (15,986 ) $ 145,378 $ (28,083 ) Every quarter, the Company evaluate securities with unrealized losses to determine if the decline in fair value has resulted from credit losses or other factors. There were 44 securities in an unrealized loss position for less than twelve twelve March 31, 2023. not not not not not March 31, 2023, no 2016 13 December 31, 2022.

Note 8 - Loans and Related Allo

Note 8 - Loans and Related Allowance for Credit Losses	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	NOTE 8 The Company’s primary business activity is with customers located within its local Northeastern Ohio trade area, eastern Geauga County, and contiguous counties. The Company also serves the central and western Ohio market with offices in Ada, Bellefontaine, Dublin, Kenton, Marysville, Plain City, Powell, Sunbury, and Westerville, Ohio. Commercial, residential, consumer, and agricultural loans are granted. Although the Company has a diversified loan portfolio, loans outstanding to individuals and businesses are dependent upon the local economic conditions in the Company’s immediate trade area. Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff generally are reported at their outstanding unpaid principal balances net of the allowance for credit losses. Interest income is recognized on the accrual method. The accrual of interest is discontinued on a loan when management believes, after considering economic and business conditions, the borrower’s financial condition is such that the collection of interest is doubtful. Interest payments received on nonaccrual loans are applied against the unpaid principal balance until accrual status is restored. Loan origination fees and certain direct loan origination costs are deferred with the net amount amortized over the contractual life of the loan as an adjustment of the related loan’s yield. The following tables summarize the primary segments of the loan portfolio (in thousands): March 31, December 31, 2023 2022 Commercial real estate: Owner occupied $ 185,661 $ 191,748 Non-owner occupied 394,331 380,580 Multifamily 63,892 58,251 Residential real estate 306,179 296,308 Commercial and industrial 195,024 195,602 Home equity lines of credit 126,555 128,065 Construction and Other 103,389 94,199 Consumer installment 7,816 8,119 Total loans 1,382,847 1,352,872 Less: Allowance for credit losses (20,162 ) (14,438 ) Net loans $ 1,362,685 $ 1,338,434 The Company’s loan portfolio is segmented to a level that allows management to monitor risk and performance. The portfolio is segmented into CRE, which is further segmented into Owner CRE OO, CRE NOO, and Multifamily Residential, RRE, C&I, HELOC, Construction, and Consumer Installment Loans. The commercial real estate loan segments consist of loans made to finance the activities of commercial real estate owners and operators and certain agricultural loans. The residential real estate and HELOC loan segments consist of loans made to finance the activities of residential homeowners. The C&I loan segment consists of loans made to finance the activities of commercial customers and certain agricultural loans. The consumer loan segment consists primarily of installment loans and overdraft lines of credit connected with customer deposit accounts. The increases in the allowance for credit loss for the C&I, RRE, and HELOC portfolios were partially offset by a decrease in the allowance for the CRE, Construction, and Consumer Installment portfolios. Management evaluates individual loans in all of the commercial segments for possible impairment based on guidelines established by the Board of Directors. Loans are individually analyzed when, based on current information and events, the Company will probably be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in evaluating impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall concerning the principal and interest owed. The Company does not Once the determination has been made that a loan is going to be individually analyzed, the determination of whether a specific allocation of the allowance is necessary is measured by comparing the recorded investment in the loan to the fair value of the loan using one not Management uses a nine first five not not not To help ensure that risk ratings are accurate and reflect the present and future capacity of borrowers to repay a loan as agreed, the Company has a structured loan rating process with several layers of internal and external oversight. Generally, consumer and residential mortgage loans are included in the Pass categories unless a specific action, such as payment delinquency, bankruptcy, repossession, or death, occurs to raise awareness of a possible credit quality loss. The Company’s Commercial Loan Officers are responsible for the timely and accurate risk rating of the loans in their portfolios at origination and on an ongoing basis. The Credit Department performs an annual review of all commercial relationships with loan balances of $750,000 or greater. Confirmation of the appropriate risk grade is included in the review on an ongoing basis. The Company engages an external consultant to conduct loan reviews on a semiannual basis. Generally, the external consultant reviews a sample of commercial relationships greater than $250,000 and criticized relationships greater than $150,000. Detailed reviews, including plans for resolution, are performed on criticized loans on at least a quarterly basis. Loans in the Special Mention and Substandard categories that are collectively evaluated for impairment are given separate consideration in the determination of the allowance. The following table represents outstanding loan balances by credit quality indicators and vintage year by class of financing receivable and current period gross charge-offs by year of origination under ASC 326 March 31, 2023: March 31, 2023 Term Loans Amortized Cost Basis by Origination Year Revolving Loans (Dollar amounts in thousands) 2023 2022 2021 2020 2019 Prior Amortized Cost Total Net loans held for investment: Commercial real estate: Owner occupied Pass $ 3,245 $ 31,354 $ 42,999 $ 26,212 $ 14,801 $ 48,029 $ 3,863 $ 170,503 Special Mention - 4,092 - 1,589 701 431 - 6,813 Substandard - - - - - 8,345 - 8,345 Total Owner occupied $ 3,245 $ 35,446 $ 42,999 $ 27,801 $ 15,502 $ 56,805 $ 3,863 $ 185,661 Current-period gross charge-offs $ - $ - $ - $ - $ - $ - $ - - Non-owner occupied Pass $ 17,592 $ 71,406 $ 49,627 $ 24,380 $ 37,711 $ 138,870 $ 2,194 $ 341,780 Special Mention - 2,507 - - - 3,836 - 6,343 Substandard - - - - - 41,335 - 41,335 Doubtful - - 696 - 4,177 - - 4,873 Total Non-owner occupied $ 17,592 $ 73,913 $ 50,323 $ 24,380 $ 41,888 $ 184,041 $ 2,194 $ 394,331 Current-period gross charge-offs - $ - $ - $ - $ - $ - $ - - Multifamily Pass $ 4,380 $ 28,027 $ 4,382 $ 10,736 $ 1,423 $ 14,803 $ 141 $ 63,892 Special Mention - - - - - - - - Substandard - - - - - - - - Total Multifamily $ 4,380 $ 28,027 $ 4,382 $ 10,736 $ 1,423 $ 14,803 $ 141 $ 63,892 Current-period gross charge-offs $ - $ - $ - $ - $ - $ - $ - - Residential real estate Pass $ 12,659 $ 54,476 $ 82,056 $ 41,768 $ 21,105 $ 91,881 521 $ 304,466 Special Mention - - - - - - - - Substandard - - 258 - 28 1,427 - 1,713 Total Residential real estate $ 12,659 $ 54,476 $ 82,314 $ 41,768 $ 21,133 $ 93,308 $ 521 $ 306,179 Current-period gross charge-offs $ - $ - $ - $ - $ - $ - $ - $ - Commercial and industrial Pass $ 7,682 $ 48,127 $ 22,392 $ 33,958 $ 3,950 $ 9,180 $ 59,737 $ 185,026 Special Mention - 390 347 166 145 567 6,178 7,793 Substandard - 18 - 378 159 1,122 528 2,205 Total Commercial and industrial $ 7,682 $ 48,535 $ 22,739 $ 34,502 $ 4,254 $ 10,869 $ 66,443 $ 195,024 Current-period gross charge-offs $ - $ - $ - $ - $ - $ (54 ) $ - $ (54 ) Home equity lines of credit Pass $ - $ 233 $ 247 $ 22 66 $ 2,813 $ 122,027 $ 125,408 Special Mention - - - - - - - - Substandard - - - 25 31 478 613 1,147 Total Home equity lines of credit $ - $ 233 $ 247 $ 47 $ 97 $ 3,291 $ 122,640 $ 126,555 Current-period gross charge-offs $ - $ - $ - $ - $ - $ - $ - $ - Construction and other Pass $ 16,912 $ 44,063 $ 24,431 $ 727 $ 2,902 $ 1,247 $ 9,253 $ 99,535 Special Mention - - - - 297 - - 297 Substandard - - 420 - 2,037 - 1,100 3,557 Total Construction and other $ 16,912 $ 44,063 $ 24,851 $ 727 $ 5,236 $ 1,247 $ 10,353 $ 103,389 Current-period gross charge-offs $ - $ - $ - $ - $ - $ - $ - - Consumer installment Pass $ 734 $ 1,606 $ 689 $ 191 $ 105 $ 4,490 $ - $ 7,815 Special Mention - - - - - - - - Substandard - - - 1 - - - 1 Total Consumer installment $ 734 $ 1,606 $ 689 $ 192 $ 105 $ 4,490 $ - $ 7,816 Current-period gross charge-offs $ - $ (22 ) $ - $ - $ - $ (7 ) $ (29 ) $ (58 ) Total Loans $ 63,204 $ 286,299 $ 228,544 $ 140,153 $ 89,638 $ 368,854 $ 206,155 $ 1,382,847 The following table presents the classes of the loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk-rating system (in thousands): Special Total December 31, 2022 Pass Mention Substandard Doubtful Loans Commercial real estate: Owner occupied $ 176,400 $ 6,873 $ 8,475 $ - $ 191,748 Non-owner occupied 331,584 6,387 42,609 - 380,580 Multifamily 58,251 - - - 58,251 Residential real estate 294,254 - 2,054 - 296,308 Commercial and industrial 185,674 7,936 1,992 - 195,602 Home equity lines of credit 127,080 - 985 - 128,065 Construction and other 90,728 308 3,163 - 94,199 Consumer installment 8,117 - 2 - 8,119 Total $ 1,272,088 $ 21,504 $ 59,280 $ - $ 1,352,872 Management further monitors the performance and credit quality of the loan portfolio by analyzing the age of the portfolio as determined by the length of time a recorded payment is past due. The following table presents collateral-dependent loans by classes of loan type as of March 31, 2023 ( March 31, 2023 Type of Collateral (Dollar amounts in thousands) Real Estate Blanket Lien Investment/Cash Other Total Commercial real estate: Non-owner occupied $ 15,854 $ - $ - $ - $ 15,854 Residential real estate 177 - - - 177 Commercial and industrial - 47 - 18 65 Home equity lines of credit 120 - - - 120 Total $ 16,151 $ 47 $ - $ 18 $ 16,216 The following table presents information related to impaired loans by class of loans under ASC 310 December 31, 2022 ( December 31, 2022 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial real estate: Owner occupied $ 4,141 $ 4,141 $ - Non-owner occupied 1,042 1,042 - Residential real estate 706 770 - Commercial and industrial 450 547 - Home equity lines of credit 112 112 - Total $ 6,451 $ 6,612 $ - With an allowance recorded: Commercial real estate: Owner occupied $ 1,509 $ 1,509 $ 407 Non-owner occupied 12,528 12,528 167 Residential real estate 317 317 28 Commercial and industrial 1,378 1,378 39 Home equity lines of credit 132 132 48 Total $ 15,864 $ 15,864 $ 689 Total: Commercial real estate: Owner occupied $ 5,650 $ 5,650 $ 407 Non-owner occupied 13,570 13,570 167 Residential real estate 1,023 1,087 28 Commercial and industrial 1,828 1,925 39 Home equity lines of credit 244 244 48 Total $ 22,315 $ 22,476 $ 689 The tables above include troubled debt restructuring totaling $3.3 million as of December 31, 2022, December 31, 2022. The following table presents the average recorded investment in impaired loans by class and interest income recognized by loan, under ASC 310, three March 31, 2022 ( For the Three Months Ended March 31, 2022 Average Recorded Investment Interest Income Recognized Commercial real estate: Owner occupied $ 724 $ 11 Non-owner occupied 5,255 58 Residential real estate 1,050 12 Commercial and industrial 609 14 Home equity lines of credit 250 3 Total $ 7,888 $ 98 The following table presents additional information regarding loans acquired with specific evidence of deterioration in credit quality under ASC 310 30: (In Thousands) December 1, 2022 December 31, 2022 Outstanding balance $ 7,919 $ 7,998 Carrying amount $ 6,019 $ 6,068 The primary risk of commercial and industrial loans is related to deterioration in the cash flow of the business, which may Nonperforming assets are nonaccrual loans, including nonaccrual troubled debt restructurings (“TDR”), loans 90 The following tables present the aging of the recorded investment in past-due loans by class of loans (in thousands): 30-59 Days 60-89 Days 90 Days+ Total Total March 31, 2023 Current Past Due Past Due Past Due Past Due Loans Commercial real estate: Owner occupied $ 185,661 $ - $ - $ - $ - $ 185,661 Non-owner occupied 387,309 1,454 - 5,568 7,022 394,331 Multifamily 63,892 - - - - 63,892 Residential real estate 305,310 334 324 211 869 306,179 Commercial and industrial 194,903 29 - 92 121 195,024 Home equity lines of credit 123,241 3,185 110 19 3,314 126,555 Construction and other 103,389 - - - - 103,389 Consumer installment 7,816 - - - - 7,816 Total $ 1,371,521 $ 5,002 $ 434 $ 5,890 $ 11,326 $ 1,382,847 Purchase 30-59 Days 60-89 Days 90 Days+ Total Credit Total December 31, 2022 Current Past Due Past Due Past Due Past Due Impaired Loans Loans Commercial real estate: Owner occupied $ 191,748 $ - $ - $ - $ - $ - $ 191,748 Non-owner occupied 380,467 113 - - 113 2,992 380,580 Multifamily 58,251 - - - - - 58,251 Residential real estate 293,698 2,093 111 406 2,610 24 296,308 Commercial and industrial 195,532 62 4 4 70 - 195,602 Home equity lines of credit 127,494 415 145 11 571 - 128,065 Construction and other 93,997 202 - - 202 3,052 94,199 Consumer installment 8,096 23 - - 23 - 8,119 Total $ 1,349,283 $ 2,908 $ 260 $ 421 $ 3,589 $ 6,068 $ 1,352,872 The following tables present the recorded investment in nonaccrual loans and loans past due over 89 March 31, 2023 Nonaccrual Nonaccrual Loans Past (Dollar amounts in thousands) with no with Total Due Over 90 Days Total ACL ACL Nonaccrual Still Accruing Nonperforming Commercial real estate: Owner occupied $ - $ 65 $ 65 $ - $ 65 Non-owner occupied 4,873 - 4,873 - 4,873 Residential real estate 173 916 1,089 - 1,089 Commercial and industrial 170 92 262 - 262 Home equity lines of credit - 364 364 - 364 Construction and other - 66 66 - 66 Consumer installment 161 2 163 - 163 Total $ 5,377 $ 1,505 $ 6,882 $ - $ 6,882 90+ Days Past Due December 31, 2022 Nonaccrual and Accruing Commercial real estate: Owner occupied $ 69 $ - Residential real estate 1,431 - Commercial and industrial 186 - Home equity lines of credit 191 - Construction and other 68 - Consumer installment 166 - Total $ 2,111 $ - Interest income that would have been recorded had these loans not three March 31, 2023 2022 On January 1, 2023, Prior to January 1, 2023 310 10 35 450 20 two Management reviews the loan portfolio quarterly using a defined, consistently applied process to make appropriate and timely adjustments to the ACL. When information confirms all or part of specific loans to be uncollectible, these amounts are promptly charged off against the ACL. The following tables summarize the ACL within the primary segments of the loan portfolio and the activity within those segments (in thousands): For the three months ended March 31, 2023 Allowance for Credit Losses Balance CECL Balance December 31, 2022 Adoption Charge-offs Recoveries Provision March 31, 2023 Loans: Commercial real estate: Owner occupied $ 2,203 $ 811 $ - $ 1 $ (337 ) $ 2,678 Non-owner occupied 5,597 (1,206 ) - - 321 4,712 Multifamily 662 591 - - 118 1,371 Residential real estate 2,047 2,744 - - 176 4,967 Commercial and industrial 1,483 2,320 (54 ) 10 60 3,819 Home equity lines of credit 1,753 (1,031 ) - 70 17 809 Construction and other 609 956 - - (12 ) 1,553 Consumer installment 84 197 (58 ) 39 (9 ) 253 Total $ 14,438 $ 5,382 $ (112 ) $ 120 $ 334 $ 20,162 For the three months ended March 31, 2022 Allowance for Loan Losses Balance Balance December 31, 2021 Charge-offs Recoveries Provision December 31, 2022 Loans: Commercial real estate: Owner occupied $ 1,836 $ - $ 1 $ (72 ) $ 1,765 Non-owner occupied 7,431 - - 241 7,672 Multifamily 454 - - (35 ) 419 Residential real estate 1,740 - 27 34 1,801 Commercial and industrial 882 (30 ) 149 (97 ) 904 Home equity lines of credit 1,452 (25 ) - (72 ) 1,355 Construction and other 533 - - 25 558 Consumer installment 14 (6 ) 34 (24 ) 18 Total $ 14,342 $ (61 ) $ 211 $ - $ 14,492 The increase in the ACL in 2022 The provision fluctuations during the three March 31, 2023, ● non-owner occupied commercial loans, multifamily loans, and residential real estate loans are due to an increase in outstanding balances. ● owner-occupied loans are due to a decrease in outstanding balances. The provision fluctuations during the three March 31, 2022, ● non-owner occupied commercial real estate portfolios are due to increased loan volume ● commercial and industrial loans are due to a decrease in outstanding balances as PPP loans receive forgiveness. Modifications to Borrowers Experiencing Financial Difficulty The Company adopted Accounting Standards Update (“ASU”) 2022 02, 326 2022 02” January 1, 2023. 2022 02 The table below details the amortized cost of gross loans held for investment made to borrowers experiencing financial difficulty that were modified during the three March 31, 2023: Payment Interest Rate Percentage of Deferral Reduction Total Loans Payment Term and Term and Term Held for Deferral Extension Extension Past Due Total Investment Commercial real estate: Non-owner occupied $ - $ 4,179 $ - $ - $ 4,179 0.30 % Commercial and industrial - 149 - - 149 0.01 % Consumer installment - 8 - - 8 0.00 % Total $ - $ 4,336 $ - $ - $ 4,336 0.31 % As of March 31, 2023, not first 2023 Troubled Debt Restructuring Disclosures Prior to the Adoption of ASU 2022 02 TDR describes loans on which the bank has granted concessions for reasons related to the customer’s financial difficulties. Such concessions may one ● reduction in the interest rate to below-market rates ● extension of repayment requirements beyond normal terms ● reduction of the principal amount owed ● reduction of accrued interest due ● acceptance of other assets in full or partial payment of a debt In each case, the concession is made due to deterioration in the borrower’s financial condition, and the new terms are less stringent than those required on a new loan with similar risk. The following tables summarize troubled debt restructurings that did not For the Three Months Ended March 31, 2022 Number of Contracts Pre-Modification Post-Modification Troubled Debt Restructurings Term Modification Other Total Outstanding Recorded Investment Outstanding Recorded Investment Commercial and industrial 1 - 1 $ 25 $ 25 There were no subsequent defaults of troubled debt restructurings for the three March 31, 2022.

Note 9 - Commitments and Contin

Note 9 - Commitments and Contingencies	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	NOTE 9 COMMITMENTS AND CONTINGENCIES Cannabis Industry We provide deposit services to customers that are licensed by the State of Ohio to do business in (or are related to) the Medical Marijuana Control Program as growers, processors, and dispensaries. Medical Marijuana businesses are regulated by the Ohio Department of Commerce and legal in the State of Ohio, although it is not 2014 While we believe we are operating in compliance with the FinCEN guidelines, there can be no not no not may may no

Note 10 - Business Combination

Note 10 - Business Combination	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Business Combination Disclosure [Text Block]	NOTE 10 BUSINESS COMBINATION As described in Note 1, December 1, 2022, one may one The Company also recorded an identifiable intangible asset representing the core deposit base of Liberty. The discounted cash flow method was used in valuing this intangible. This method is based upon the principle of future benefits; economic value is based on anticipated future benefits as measured by cash flows expected to occur in the future. The estimated future cash flows are converted to a value indicator by determining the present value of the cash flows using a discount rate. The discount rate is based on the nature of the business, the level of risk, and the expected stability of the estimated future cash flows. The higher the risk, the higher the discount rate, and the lower the value indicator. Time deposit fair values were estimated using an income approach. The methodology entailed discounting the contractual cash flows of the instruments over their remaining contractual lives at prevailing market rates. Interest and principal payments were projected for each category of CDs over the period from the valuation date to the maturity date. These payments represent future cash flows to be paid to depositors until maturity. Using appropriate market interest rates for each category of CDs, the future cash flows were discounted to their present value equivalents. Middlefield recorded goodwill and intangibles associated with the purchase of Liberty totaling $16.7 million. Goodwill is not not March 31, 2023. Identifiable intangibles are amortized to their estimated residual values over the expected useful lives. Such lives are also periodically reassessed to determine if any amortization period adjustments are required. During the year ended December 31, 2022, 2022 March 31, 2023 The following table summarizes the purchase of Liberty as of December 1, 2022: (In Thousands, Except Per Share Data) Purchase Price Consideration in Common Stock Middlefield Banc Corp. shares issued 2,561,513 Value assigned to Middlefield Banc Corp. common shares $ 28.60 Purchase price assigned to Liberty common shares exchanged for 73,259 Purchase Price Consideration in Cash Cash paid in lieu of fractional shares 6 Total Purchase Price 73,265 Net Assets Acquired: Liberty shareholders equity $ 49,041 Adjustments to reflect assets acquired at fair value: Loans Allowance for credit loss 4,497 Loans - interest rate 646 Loans - general credit (3,433 ) Core deposit intangible 6,669 Investments (1,461 ) Mortgage servicing rights 830 Other 94 Adjustments to reflect liabilities acquired at fair value: Time deposits (228 ) Deferred taxes (54 ) Total net assets acquired 56,601 Goodwill resulting from merger $ 16,664 The following condensed statement reflects the amounts recognized as of the acquisition date for each major class of asset acquired and liability assumed, at fair value: (In Thousands) Total purchase price $ 73,265 Assets (liabilities) acquired: Net assets acquired: Cash $ 18,406 Loans and loans held for sale 312,618 Investments 57,907 Premises and equipment, net 6,087 Accrued interest receivable 1,563 Bank-owned life insurance 16,290 Core deposit intangible 6,670 Mortgage servicing rights 1,680 Other assets 3,111 Time deposits (69,278 ) Non-time deposits (294,684 ) Accrued interest payable (246 ) Other liabilities (3,523 ) Total net assets acquired 56,601 Goodwill resulting from the Liberty merger $ 16,664 As of March 31, 2023, (Dollar amounts in thousands) Remaining 2023 $ 572 2024 750 2025 733 2026 714 2027 691 Thereafter 2,954 Total $ 6,414 The following table presents supplemental pro forma information as if the acquisition had occurred on January 1, 2022. not For the three months ended March 31, 2022 (in thousands, except per share data) Net interest income $ 14,979 Noninterest income 2,156 Net income $ 4,777 Pro forma earnings per share: Basic $ 0.57 Diluted $ 0.57

Note 11 - Subsequent Event

Note 11 - Subsequent Event	3 Months Ended
	Mar. 31, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 11 SUBSEQUENT EVENT On April 12, 2023, We have incurred expenses to investigate and remediate the cyber-attack and expect to continue to incur expenses. Middlefield Bank has retained special legal counsel. Although cyber-attacks can be unpredictable, the Company does not

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Accounting Standards Update and Change in Accounting Principle [Table Text Block]	January 1, 2023 Allowance for Credit Losses Pre- adoption Adoption Impact As Reported ACL on loans Commercial real estate: Owner occupied $ 2,203 $ 811 $ 3,014 Non-owner occupied 5,597 (1,206 ) 4,391 Multifamily 662 591 1,253 Residential real estate 2,047 2,744 4,791 Commercial and industrial 1,483 2,320 3,803 Home equity lines of credit 1,753 (1,031 ) 722 Construction and other 609 956 1,565 Consumer installment 84 197 281 Total $ 14,438 $ 5,382 $ 19,820 ACL on unfunded commitments $ - (683 ) (683 )

Note 2 - Revenue Recognition (T

Note 2 - Revenue Recognition (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Disaggregation of Revenue [Table Text Block]	For the Three Months Ended Noninterest Income 2023 2022 (Dollar amounts in thousands) Service charges on deposit accounts: Overdraft fees $ 246 $ 201 ATM banking fees 472 309 Service charges and other fees 269 404 (Loss) gain on equity securities (a) (138 ) 33 Gain on other real estate owned 2 - Earnings on bank-owned life insurance (a) 200 106 Gain on sale of loans (a) 23 3 Revenue from investment services 186 141 Miscellaneous Fee income 86 62 Gross rental income 102 - Other income 232 144 Total noninterest income $ 1,680 $ 1,403

Note 3 - Stock-based Compensa_2

Note 3 - Stock-based Compensation (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]	Weighted- average Grant Date Fair Units Value Per Unit Nonvested at January 1, 2023 63,646 $ 24.34 Granted 29,781 27.40 Vested (8,003 ) 26.09 Forfeited (15,205 ) 26.09 Nonvested at March 31, 2023 70,219 $ 25.29 Expected to vest as of March 31, 2023 66,416 $ 25.12

Note 4 - Earnings Per Share (Ta

Note 4 - Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Schedule of Weighted Average Number of Shares [Table Text Block]	For the Three Months Ended March 31, 2023 2022 Weighted-average common shares issued 9,921,529 7,338,283 Average treasury stock shares (1,782,758 ) (1,459,258 ) Weighted-average common shares and common stock equivalents used to calculate basic earnings per share 8,138,771 5,879,025 Additional common stock equivalents (stock options and restricted stock) used to calculate diluted earnings per share 13,858 10,811 Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share 8,152,629 5,889,836

Note 5 - Fair Value Measureme_2

Note 5 - Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	March 31, 2023 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: Subordinated debt $ - $ 23,707 $ 8,806 $ 32,513 Obligations of states and political subdivisions - 129,759 - 129,759 Mortgage-backed securities in government-sponsored entities - 7,333 - 7,333 Total debt securities - 160,799 8,806 169,605 Equity securities in financial institutions 777 - - 777 Total $ 777 $ 160,799 $ 8,806 $ 170,382 December 31, 2022 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: Subordinated debt $ - $ 21,427 $ 8,737 $ 30,164 Obligations of states and political subdivisions - 127,334 - 127,334 Mortgage-backed securities in government-sponsored entities - 7,469 - 7,469 Total debt securities - 156,230 8,737 164,967 Equity securities in financial institutions 915 - - 915 Total $ 915 $ 156,230 $ 8,737 $ 165,882
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	(Dollar amounts in thousands) Subordinated debt Balance as of January 1, 2023 $ 8,737 Transfers into Level III (1) - Transfers out of Level III (1) - Net change in unrealized loss on available-for-sale investment securities 69 Balance as of March 31, 2023 $ 8,806
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	March 31, 2023 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Individually analyzed loans held for investment $ - $ - $ 16,842 $ 16,842 December 31, 2022 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ - $ - $ 1,143 $ 1,143 Other real estate owned - - 5,792 5,792
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]	Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Range (Weighted Fair Value Estimate Valuation Techniques Unobservable Input Average) March 31, 2023 Individually analyzed loans held for investment $ 16,842 Appraisal of collateral (1) Appraisal adjustments (2) 20.4% to 31.1% (20.4%) Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Range (Weighted Fair Value Estimate Valuation Techniques Unobservable Input Average) December 31, 2022 Impaired loans $ 1,143 Appraisal of collateral (1) Appraisal adjustments (2) 12.0% Other real estate owned $ 5,792 Appraisal of collateral (1) Appraisal adjustments (2) 8.4%
Fair Value, by Balance Sheet Grouping [Table Text Block]	March 31, 2023 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Net loans $ 1,362,685 $ - $ - $ 1,317,954 $ 1,317,954 Financial liabilities: Deposits $ 1,425,607 $ 1,180,645 $ - $ 1,239,085 $ 2,419,730 Other borrowings $ 12,010 $ - $ - $ 12,010 $ 12,010 December 31, 2022 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Net loans $ 1,338,434 $ - $ - $ 1,298,814 $ 1,298,814 Financial liabilities: Deposits $ 1,402,019 $ 1,163,999 $ - $ 231,218 $ 1,395,217 Other borrowings $ 12,059 $ - $ - $ 12,059 $ 12,059

Note 6 - Accumulated Other Co_2

Note 6 - Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Unrealized (losses)/gains on available-for-sale securities (a) (Dollars in thousands) Balance as of December 31, 2022 $ (22,144 ) Other comprehensive income 2,891 Balance at March 31, 2023 $ (19,253 ) Balance as of December 31, 2021 $ 3,462 Other comprehensive loss (10,136 ) Balance at March 31, 2022 $ (6,674 )

Note 7 - Investment and Equit_2

Note 7 - Investment and Equity Securities (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]	March 31, 2023 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value Subordinated debt $ 34,300 $ 8 $ (1,795 ) $ 32,513 Obligations of states and political subdivisions: Taxable 500 - - 500 Tax-exempt 151,204 82 (22,027 ) 129,259 Mortgage-backed securities in government-sponsored entities 7,973 1 (641 ) 7,333 Total $ 193,977 $ 91 $ (24,463 ) $ 169,605 December 31, 2022 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value Subordinated debt $ 32,300 $ 3 $ (2,139 ) $ 30,164 Obligations of states and political subdivisions: Taxable 500 - - 500 Tax-exempt 151,896 49 (25,111 ) 126,834 Mortgage-backed securities in government-sponsored entities 8,302 - (833 ) 7,469 Total $ 192,998 $ 52 $ (28,083 ) $ 164,967
Investments Classified by Contractual Maturity Date [Table Text Block]	Amortized Fair (Dollar amounts in thousands) Cost Value Due in one year or less $ 570 $ 570 Due after one year through five years 2,935 2,870 Due after five years through ten years 47,291 45,336 Due after ten years 143,181 120,829 Total $ 193,977 $ 169,605
Schedule of Unrealized Loss on Investments [Table Text Block]	March 31, 2023 Less than Twelve Months Twelve Months or Greater Total Gross Gross Gross Fair Unrealized Fair Unrealized Fair Unrealized (Dollar amounts in thousands) Value Losses Value Losses Value Losses Subordinated debt $ 13,082 $ (418 ) $ 17,923 $ (1,377 ) $ 31,005 $ (1,795 ) Obligations of states and political subdivisions: Tax-exempt 22,396 (962 ) 89,741 (21,065 ) 112,137 (22,027 ) Mortgage-backed securities in government-sponsored entities 609 (13 ) 6,463 (628 ) 7,072 (641 ) Total $ 36,087 $ (1,393 ) $ 114,127 $ (23,070 ) $ 150,214 $ (24,463 ) December 31, 2022 Less than Twelve Months Twelve Months or Greater Total Gross Gross Gross Fair Unrealized Fair Unrealized Fair Unrealized (Dollar amounts in thousands) Value Losses Value Losses Value Losses Subordinated debt $ 12,638 $ (1,129 ) $ 8,790 $ (1,010 ) $ 21,428 $ (2,139 ) Obligations of states and political subdivisions: Tax-exempt 75,343 (10,488 ) 41,138 (14,623 ) 116,481 (25,111 ) Mortgage-backed securities in government-sponsored entities 6,153 (480 ) 1,316 (353 ) 7,469 (833 ) Total $ 94,134 $ (12,097 ) $ 51,244 $ (15,986 ) $ 145,378 $ (28,083 )

Note 8 - Loans and Related Al_2

Note 8 - Loans and Related Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Schedule Of Financing Receivable By Segment [Table Text Block]	March 31, December 31, 2023 2022 Commercial real estate: Owner occupied $ 185,661 $ 191,748 Non-owner occupied 394,331 380,580 Multifamily 63,892 58,251 Residential real estate 306,179 296,308 Commercial and industrial 195,024 195,602 Home equity lines of credit 126,555 128,065 Construction and Other 103,389 94,199 Consumer installment 7,816 8,119 Total loans 1,382,847 1,352,872 Less: Allowance for credit losses (20,162 ) (14,438 ) Net loans $ 1,362,685 $ 1,338,434
Financing Receivable Credit Quality Indicators [Table Text Block]	March 31, 2023 Term Loans Amortized Cost Basis by Origination Year Revolving Loans (Dollar amounts in thousands) 2023 2022 2021 2020 2019 Prior Amortized Cost Total Net loans held for investment: Commercial real estate: Owner occupied Pass $ 3,245 $ 31,354 $ 42,999 $ 26,212 $ 14,801 $ 48,029 $ 3,863 $ 170,503 Special Mention - 4,092 - 1,589 701 431 - 6,813 Substandard - - - - - 8,345 - 8,345 Total Owner occupied $ 3,245 $ 35,446 $ 42,999 $ 27,801 $ 15,502 $ 56,805 $ 3,863 $ 185,661 Current-period gross charge-offs $ - $ - $ - $ - $ - $ - $ - - Non-owner occupied Pass $ 17,592 $ 71,406 $ 49,627 $ 24,380 $ 37,711 $ 138,870 $ 2,194 $ 341,780 Special Mention - 2,507 - - - 3,836 - 6,343 Substandard - - - - - 41,335 - 41,335 Doubtful - - 696 - 4,177 - - 4,873 Total Non-owner occupied $ 17,592 $ 73,913 $ 50,323 $ 24,380 $ 41,888 $ 184,041 $ 2,194 $ 394,331 Current-period gross charge-offs - $ - $ - $ - $ - $ - $ - - Multifamily Pass $ 4,380 $ 28,027 $ 4,382 $ 10,736 $ 1,423 $ 14,803 $ 141 $ 63,892 Special Mention - - - - - - - - Substandard - - - - - - - - Total Multifamily $ 4,380 $ 28,027 $ 4,382 $ 10,736 $ 1,423 $ 14,803 $ 141 $ 63,892 Current-period gross charge-offs $ - $ - $ - $ - $ - $ - $ - - Residential real estate Pass $ 12,659 $ 54,476 $ 82,056 $ 41,768 $ 21,105 $ 91,881 521 $ 304,466 Special Mention - - - - - - - - Substandard - - 258 - 28 1,427 - 1,713 Total Residential real estate $ 12,659 $ 54,476 $ 82,314 $ 41,768 $ 21,133 $ 93,308 $ 521 $ 306,179 Current-period gross charge-offs $ - $ - $ - $ - $ - $ - $ - $ - Commercial and industrial Pass $ 7,682 $ 48,127 $ 22,392 $ 33,958 $ 3,950 $ 9,180 $ 59,737 $ 185,026 Special Mention - 390 347 166 145 567 6,178 7,793 Substandard - 18 - 378 159 1,122 528 2,205 Total Commercial and industrial $ 7,682 $ 48,535 $ 22,739 $ 34,502 $ 4,254 $ 10,869 $ 66,443 $ 195,024 Current-period gross charge-offs $ - $ - $ - $ - $ - $ (54 ) $ - $ (54 ) Home equity lines of credit Pass $ - $ 233 $ 247 $ 22 66 $ 2,813 $ 122,027 $ 125,408 Special Mention - - - - - - - - Substandard - - - 25 31 478 613 1,147 Total Home equity lines of credit $ - $ 233 $ 247 $ 47 $ 97 $ 3,291 $ 122,640 $ 126,555 Current-period gross charge-offs $ - $ - $ - $ - $ - $ - $ - $ - Construction and other Pass $ 16,912 $ 44,063 $ 24,431 $ 727 $ 2,902 $ 1,247 $ 9,253 $ 99,535 Special Mention - - - - 297 - - 297 Substandard - - 420 - 2,037 - 1,100 3,557 Total Construction and other $ 16,912 $ 44,063 $ 24,851 $ 727 $ 5,236 $ 1,247 $ 10,353 $ 103,389 Current-period gross charge-offs $ - $ - $ - $ - $ - $ - $ - - Consumer installment Pass $ 734 $ 1,606 $ 689 $ 191 $ 105 $ 4,490 $ - $ 7,815 Special Mention - - - - - - - - Substandard - - - 1 - - - 1 Total Consumer installment $ 734 $ 1,606 $ 689 $ 192 $ 105 $ 4,490 $ - $ 7,816 Current-period gross charge-offs $ - $ (22 ) $ - $ - $ - $ (7 ) $ (29 ) $ (58 ) Total Loans $ 63,204 $ 286,299 $ 228,544 $ 140,153 $ 89,638 $ 368,854 $ 206,155 $ 1,382,847 Special Total December 31, 2022 Pass Mention Substandard Doubtful Loans Commercial real estate: Owner occupied $ 176,400 $ 6,873 $ 8,475 $ - $ 191,748 Non-owner occupied 331,584 6,387 42,609 - 380,580 Multifamily 58,251 - - - 58,251 Residential real estate 294,254 - 2,054 - 296,308 Commercial and industrial 185,674 7,936 1,992 - 195,602 Home equity lines of credit 127,080 - 985 - 128,065 Construction and other 90,728 308 3,163 - 94,199 Consumer installment 8,117 - 2 - 8,119 Total $ 1,272,088 $ 21,504 $ 59,280 $ - $ 1,352,872
Schedule of Collateral Dependent Loans [Table Text Block]	March 31, 2023 Type of Collateral (Dollar amounts in thousands) Real Estate Blanket Lien Investment/Cash Other Total Commercial real estate: Non-owner occupied $ 15,854 $ - $ - $ - $ 15,854 Residential real estate 177 - - - 177 Commercial and industrial - 47 - 18 65 Home equity lines of credit 120 - - - 120 Total $ 16,151 $ 47 $ - $ 18 $ 16,216
Impaired Financing Receivables [Table Text Block]	December 31, 2022 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial real estate: Owner occupied $ 4,141 $ 4,141 $ - Non-owner occupied 1,042 1,042 - Residential real estate 706 770 - Commercial and industrial 450 547 - Home equity lines of credit 112 112 - Total $ 6,451 $ 6,612 $ - With an allowance recorded: Commercial real estate: Owner occupied $ 1,509 $ 1,509 $ 407 Non-owner occupied 12,528 12,528 167 Residential real estate 317 317 28 Commercial and industrial 1,378 1,378 39 Home equity lines of credit 132 132 48 Total $ 15,864 $ 15,864 $ 689 Total: Commercial real estate: Owner occupied $ 5,650 $ 5,650 $ 407 Non-owner occupied 13,570 13,570 167 Residential real estate 1,023 1,087 28 Commercial and industrial 1,828 1,925 39 Home equity lines of credit 244 244 48 Total $ 22,315 $ 22,476 $ 689
Schedule of Additional Information Related to Impaired Loans [Table Text Block]	For the Three Months Ended March 31, 2022 Average Recorded Investment Interest Income Recognized Commercial real estate: Owner occupied $ 724 $ 11 Non-owner occupied 5,255 58 Residential real estate 1,050 12 Commercial and industrial 609 14 Home equity lines of credit 250 3 Total $ 7,888 $ 98
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Table Text Block]	(In Thousands) December 1, 2022 December 31, 2022 Outstanding balance $ 7,919 $ 7,998 Carrying amount $ 6,019 $ 6,068
Financing Receivable, Past Due [Table Text Block]	30-59 Days 60-89 Days 90 Days+ Total Total March 31, 2023 Current Past Due Past Due Past Due Past Due Loans Commercial real estate: Owner occupied $ 185,661 $ - $ - $ - $ - $ 185,661 Non-owner occupied 387,309 1,454 - 5,568 7,022 394,331 Multifamily 63,892 - - - - 63,892 Residential real estate 305,310 334 324 211 869 306,179 Commercial and industrial 194,903 29 - 92 121 195,024 Home equity lines of credit 123,241 3,185 110 19 3,314 126,555 Construction and other 103,389 - - - - 103,389 Consumer installment 7,816 - - - - 7,816 Total $ 1,371,521 $ 5,002 $ 434 $ 5,890 $ 11,326 $ 1,382,847 Purchase 30-59 Days 60-89 Days 90 Days+ Total Credit Total December 31, 2022 Current Past Due Past Due Past Due Past Due Impaired Loans Loans Commercial real estate: Owner occupied $ 191,748 $ - $ - $ - $ - $ - $ 191,748 Non-owner occupied 380,467 113 - - 113 2,992 380,580 Multifamily 58,251 - - - - - 58,251 Residential real estate 293,698 2,093 111 406 2,610 24 296,308 Commercial and industrial 195,532 62 4 4 70 - 195,602 Home equity lines of credit 127,494 415 145 11 571 - 128,065 Construction and other 93,997 202 - - 202 3,052 94,199 Consumer installment 8,096 23 - - 23 - 8,119 Total $ 1,349,283 $ 2,908 $ 260 $ 421 $ 3,589 $ 6,068 $ 1,352,872
Financing Receivable, Nonaccrual [Table Text Block]	March 31, 2023 Nonaccrual Nonaccrual Loans Past (Dollar amounts in thousands) with no with Total Due Over 90 Days Total ACL ACL Nonaccrual Still Accruing Nonperforming Commercial real estate: Owner occupied $ - $ 65 $ 65 $ - $ 65 Non-owner occupied 4,873 - 4,873 - 4,873 Residential real estate 173 916 1,089 - 1,089 Commercial and industrial 170 92 262 - 262 Home equity lines of credit - 364 364 - 364 Construction and other - 66 66 - 66 Consumer installment 161 2 163 - 163 Total $ 5,377 $ 1,505 $ 6,882 $ - $ 6,882 90+ Days Past Due December 31, 2022 Nonaccrual and Accruing Commercial real estate: Owner occupied $ 69 $ - Residential real estate 1,431 - Commercial and industrial 186 - Home equity lines of credit 191 - Construction and other 68 - Consumer installment 166 - Total $ 2,111 $ -
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]	For the three months ended March 31, 2023 Allowance for Credit Losses Balance CECL Balance December 31, 2022 Adoption Charge-offs Recoveries Provision March 31, 2023 Loans: Commercial real estate: Owner occupied $ 2,203 $ 811 $ - $ 1 $ (337 ) $ 2,678 Non-owner occupied 5,597 (1,206 ) - - 321 4,712 Multifamily 662 591 - - 118 1,371 Residential real estate 2,047 2,744 - - 176 4,967 Commercial and industrial 1,483 2,320 (54 ) 10 60 3,819 Home equity lines of credit 1,753 (1,031 ) - 70 17 809 Construction and other 609 956 - - (12 ) 1,553 Consumer installment 84 197 (58 ) 39 (9 ) 253 Total $ 14,438 $ 5,382 $ (112 ) $ 120 $ 334 $ 20,162 For the three months ended March 31, 2022 Allowance for Loan Losses Balance Balance December 31, 2021 Charge-offs Recoveries Provision December 31, 2022 Loans: Commercial real estate: Owner occupied $ 1,836 $ - $ 1 $ (72 ) $ 1,765 Non-owner occupied 7,431 - - 241 7,672 Multifamily 454 - - (35 ) 419 Residential real estate 1,740 - 27 34 1,801 Commercial and industrial 882 (30 ) 149 (97 ) 904 Home equity lines of credit 1,452 (25 ) - (72 ) 1,355 Construction and other 533 - - 25 558 Consumer installment 14 (6 ) 34 (24 ) 18 Total $ 14,342 $ (61 ) $ 211 $ - $ 14,492
Financing Receivable, Modified [Table Text Block]	Payment Interest Rate Percentage of Deferral Reduction Total Loans Payment Term and Term and Term Held for Deferral Extension Extension Past Due Total Investment Commercial real estate: Non-owner occupied $ - $ 4,179 $ - $ - $ 4,179 0.30 % Commercial and industrial - 149 - - 149 0.01 % Consumer installment - 8 - - 8 0.00 % Total $ - $ 4,336 $ - $ - $ 4,336 0.31 % For the Three Months Ended March 31, 2022 Number of Contracts Pre-Modification Post-Modification Troubled Debt Restructurings Term Modification Other Total Outstanding Recorded Investment Outstanding Recorded Investment Commercial and industrial 1 - 1 $ 25 $ 25

Note 10 - Business Combination

Note 10 - Business Combination (Tables)	3 Months Ended
	Mar. 31, 2023
Notes Tables
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	(In Thousands, Except Per Share Data) Purchase Price Consideration in Common Stock Middlefield Banc Corp. shares issued 2,561,513 Value assigned to Middlefield Banc Corp. common shares $ 28.60 Purchase price assigned to Liberty common shares exchanged for 73,259 Purchase Price Consideration in Cash Cash paid in lieu of fractional shares 6 Total Purchase Price 73,265 Net Assets Acquired: Liberty shareholders equity $ 49,041 Adjustments to reflect assets acquired at fair value: Loans Allowance for credit loss 4,497 Loans - interest rate 646 Loans - general credit (3,433 ) Core deposit intangible 6,669 Investments (1,461 ) Mortgage servicing rights 830 Other 94 Adjustments to reflect liabilities acquired at fair value: Time deposits (228 ) Deferred taxes (54 ) Total net assets acquired 56,601 Goodwill resulting from merger $ 16,664
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	(In Thousands) Total purchase price $ 73,265 Assets (liabilities) acquired: Net assets acquired: Cash $ 18,406 Loans and loans held for sale 312,618 Investments 57,907 Premises and equipment, net 6,087 Accrued interest receivable 1,563 Bank-owned life insurance 16,290 Core deposit intangible 6,670 Mortgage servicing rights 1,680 Other assets 3,111 Time deposits (69,278 ) Non-time deposits (294,684 ) Accrued interest payable (246 ) Other liabilities (3,523 ) Total net assets acquired 56,601 Goodwill resulting from the Liberty merger $ 16,664
Business Acquisition, Pro Forma Information [Table Text Block]	For the three months ended March 31, 2022 (in thousands, except per share data) Net interest income $ 14,979 Noninterest income 2,156 Net income $ 4,777 Pro forma earnings per share: Basic $ 0.57 Diluted $ 0.57
Liberty Bancshares Inc [Member]
Notes Tables
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	(Dollar amounts in thousands) Remaining 2023 $ 572 2024 750 2025 733 2026 714 2027 691 Thereafter 2,954 Total $ 6,414

Note 1 - Basis of Presentatio_2

Note 1 - Basis of Presentation (Details Textual)			3 Months Ended
	Jan. 01, 2023 USD ($)	Dec. 01, 2022 USD ($) shares	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss			$ 0
Retained Earnings (Accumulated Deficit)			93,024,000		$ 94,154,000
Financing Receivable, Credit Loss, Expense (Reversal)			507,000	$ 0
Provision for Loan, Lease, and Other Losses			334,000	$ 0
Accounting Standards Update 2016-13 [Member]
Financing Receivable, Credit Loss, Expense (Reversal)			507,000
Provision for Loan, Lease, and Other Losses			334,000
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase	$ 121,000
Accounting Standards Update 2016-13 [Member] | Unfunded Loan Commitment [Member]
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)			173,000
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)	5,300,000
Retained Earnings (Accumulated Deficit)	4,400,000
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | Unfunded Loan Commitment [Member]
Off-Balance-Sheet, Credit Loss, Liability	622,000
Retained Earnings (Accumulated Deficit)	491,000
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] | Loans [Member]
Retained Earnings (Accumulated Deficit)	$ 3,900,000
Commercial Portfolio Segment [Member] | Minimum [Member]
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process			150,000
Accrued Interest Receivable and Other Assets [Member]
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss			1,600,000
Interest Receivable			$ 4,300,000
LBSI Insurance, LLC [Member]
Business Acquisition, Percentage of Voting Interests Acquired		100%
Liberty Bancshares Inc [Member]
Business Combination, Amount Shares Issued to Acquiree's Shareholders Per Share (in shares) | shares		2.752
Stock Issued During Period, Shares, Acquisitions (in shares) | shares		2,561,513
Business Combination, Consideration Transferred		$ 73,265,000
Number of Branches		6

Note 1 - Basis of Presentatio_3

Note 1 - Basis of Presentation - Impact of Adoption of ASU (Details) - USD ($)	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Less: allowance for credit losses	$ 20,162,000	$ 14,438	$ 14,438,000	$ 14,492,000	$ 14,342,000
Cumulative Effect, Period of Adoption, Adjustment [Member]
Less: allowance for credit losses		5,382
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Less: allowance for credit losses		19,820
Unfunded Loan Commitment [Member]
Less: allowance for credit losses		0
Unfunded Loan Commitment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Less: allowance for credit losses		(683)
Unfunded Loan Commitment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Less: allowance for credit losses		(683)
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Less: allowance for credit losses	2,678,000	2,203	2,203,000	1,765,000	1,836,000
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Less: allowance for credit losses		811
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Less: allowance for credit losses		3,014
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Less: allowance for credit losses	4,712,000	5,597	5,597,000	7,672,000	7,431,000
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Less: allowance for credit losses		(1,206)
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Less: allowance for credit losses		4,391
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Less: allowance for credit losses	1,371,000	662	662,000	419,000	454,000
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Less: allowance for credit losses		591
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Less: allowance for credit losses		1,253
Residential Portfolio Segment [Member]
Less: allowance for credit losses	4,967,000	2,047	2,047,000	1,801,000	1,740,000
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Less: allowance for credit losses		2,744
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Less: allowance for credit losses		4,791
Commercial And Industrial [Member]
Less: allowance for credit losses	3,819,000	1,483	1,483,000	904,000	882,000
Commercial And Industrial [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Less: allowance for credit losses		2,320
Commercial And Industrial [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Less: allowance for credit losses		3,803
Home Equity Lines of Credit [Member]
Less: allowance for credit losses	809,000	1,753	1,753,000	1,355,000	1,452,000
Home Equity Lines of Credit [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Less: allowance for credit losses		(1,031)
Home Equity Lines of Credit [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Less: allowance for credit losses		722
Construction and Other [Member]
Less: allowance for credit losses	1,553,000	609	609,000	558,000	533,000
Construction and Other [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Less: allowance for credit losses		956
Construction and Other [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Less: allowance for credit losses		1,565
Consumer Portfolio Segment [Member]
Less: allowance for credit losses	$ 253,000	84	$ 84,000	$ 18,000	$ 14,000
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Less: allowance for credit losses		197
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Less: allowance for credit losses		$ 281

Note 2 - Revenue Recognition (D

Note 2 - Revenue Recognition (Details Textual)	3 Months Ended
	Mar. 31, 2023
Revenue from Interest Income and Noninterest Income, Percent	92.80%

Note 2 - Revenue Recognition -

Note 2 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($)		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Gain on equity securities	[1]	$ (138,000)	$ 33,000
Gain on other real estate owned	[2]	2,000	0
Earnings on bank-owned life insurance	[1]	200,000	106,000
Gain on sale of loans	[1]	23,000	3,000
Revenue from investment services		186,000	141,000
Miscellaneous Fee income		86,000	62,000
Gross rental income		102,000	0
Other income		232,000	144,000
Total noninterest income		1,680,000	1,403,000
Overdraft Fees [Member]
Noninterest income revenue		246,000	201,000
ATM Banking Fees [Member]
Noninterest income revenue		472,000	309,000
Service Charge and Other Fees [Member]
Noninterest income revenue		$ 269,000	$ 404,000
[1]Not within scope of ASC 606[2]Recognized within noninterest expense

Note 3 - Stock-based Compensa_3

Note 3 - Stock-based Compensation (Details Textual) - USD ($) shares in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares, Ending Balance (in shares)	0						0
Share-Based Payment Arrangement, Expense	$ 45,000	$ 117,000
Deferred Compensation Share-Based Arrangements, Liability, Current and Noncurrent	521,000	$ 503,000
Restricted Stock [Member]
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount	$ 588,000
Restricted Stock [Member] | Forecast [Member]
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount			$ 34,000	$ 158,000	$ 163,000	$ 233,000

Note 3 - Stock-based Compensa_4

Note 3 - Stock-based Compensation - Activity Related to Restricted Stock Units Awarded (Details) - Restricted Stock [Member]	3 Months Ended
	Mar. 31, 2023 $ / shares shares
Nonvested (in shares) | shares	63,646
Nonvested, weighted average grant date fair value per share (in dollars per share) | $ / shares	$ 24.34
Granted (in shares) | shares	29,781
Granted, weighted average grant date fair value per share (in dollars per share) | $ / shares	$ 27.40
Vested (in shares) | shares	(8,003)
Vested, weighted average grant date fair value per share (in dollars per share) | $ / shares	$ 26.09
Forfeited (in shares) | shares	(15,205)
Forfeited, weighted average grant date fair value per share (in dollars per share) | $ / shares	$ 26.09
Nonvested (in shares) | shares	70,219
Nonvested, weighted average grant date fair value per share (in dollars per share) | $ / shares	$ 25.29
Expected to vest (in shares) | shares	66,416
Expected to vest, weighted average grant date fair value per share (in dollars per share) | $ / shares	$ 25.12

Note 4 - Earnings Per Share (De

Note 4 - Earnings Per Share (Details Textual) - shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Treasury Stock, Common, Shares (in shares)	1,835,452		1,671,231
Treasury Stock, Shares, Acquired (in shares)	164,221	32,150
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number (in shares)	70,219	76,601
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	56,361	65,790

Note 4 - Earnings Per Share - S

Note 4 - Earnings Per Share - Shares Used in Calculation of Earnings Per Share (Details) - shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Weighted-average common shares issued (in shares)	9,921,529	7,338,283
Average treasury stock shares (in shares)	(1,782,758)	(1,459,258)
Weighted-average common shares and common stock equivalents used to calculate basic earnings per share (in shares)	8,138,771	5,879,025
Additional common stock equivalents (stock options and restricted stock) used to calculate diluted earnings per share (in shares)	13,858	10,811
Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share (in shares)	8,152,629	5,889,836

Note 5 - Fair Value Measureme_3

Note 5 - Fair Value Measurements (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Estimated Selling Costs of Impaired Loans	$ 2.5	$ 688,000
Mandatorily Redeemable Securities	$ 8,000,000
Notes Payable, Other Payables [Member] | London Interbank Offered Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	1.67%
Other Borrowings [Member]
Notes Payable, Total	$ 8,200,000

Note 5 - Fair Value Measureme_4

Note 5 - Fair Value Measurements - Assets Measured on a Recurring Basis (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Total debt securities	$ 169,605,000	$ 164,967,000
Equity securities in financial institutions	777,000	915,000
Investment securities available for sale, at fair value	169,605,000	164,967,000
Subordinated Debt Securities [Member]
Total debt securities	32,513,000	30,164,000
Investment securities available for sale, at fair value	32,513,000	30,164,000
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Total debt securities	7,333,000	7,469,000
Investment securities available for sale, at fair value	7,333,000	7,469,000
Fair Value, Recurring [Member]
Total debt securities	169,605,000	164,967,000
Equity securities in financial institutions	777,000	915,000
Total	170,382,000	165,882,000
Investment securities available for sale, at fair value	169,605,000	164,967,000
Fair Value, Recurring [Member] | Subordinated Debt Securities [Member]
Total debt securities	32,513,000	30,164,000
Investment securities available for sale, at fair value	32,513,000	30,164,000
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Total debt securities	129,759,000	127,334,000
Investment securities available for sale, at fair value	129,759,000	127,334,000
Fair Value, Recurring [Member] | Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Total debt securities	7,333,000	7,469,000
Investment securities available for sale, at fair value	7,333,000	7,469,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Total debt securities	0	0
Equity securities in financial institutions	777,000	915,000
Total	777,000	915,000
Investment securities available for sale, at fair value	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Subordinated Debt Securities [Member]
Total debt securities	0	0
Investment securities available for sale, at fair value	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | US States and Political Subdivisions Debt Securities [Member]
Total debt securities	0	0
Investment securities available for sale, at fair value	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Total debt securities	0	0
Investment securities available for sale, at fair value	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Total debt securities	160,799,000	156,230,000
Equity securities in financial institutions	0	0
Total	160,799,000	156,230,000
Investment securities available for sale, at fair value	160,799,000	156,230,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Subordinated Debt Securities [Member]
Total debt securities	23,707,000	21,427,000
Investment securities available for sale, at fair value	23,707,000	21,427,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member]
Total debt securities	129,759,000	127,334,000
Investment securities available for sale, at fair value	129,759,000	127,334,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Total debt securities	7,333,000	7,469,000
Investment securities available for sale, at fair value	7,333,000	7,469,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Total debt securities	8,806,000	8,737,000
Equity securities in financial institutions	0	0
Total	8,806,000	8,737,000
Investment securities available for sale, at fair value	8,806,000	8,737,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Subordinated Debt Securities [Member]
Total debt securities	8,806,000	8,737,000
Investment securities available for sale, at fair value	8,806,000	8,737,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | US States and Political Subdivisions Debt Securities [Member]
Total debt securities	0	0
Investment securities available for sale, at fair value	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Total debt securities	0	0
Investment securities available for sale, at fair value	$ 0	$ 0

Note 5 - Fair Value Measureme_5

Note 5 - Fair Value Measurements - Fair Value Reconciliation of Level 3 Assets (Details) - Subordinated Debt Obligations [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Balance as of January 1, 2023	$ 8,737
Transfers into Level III (1)	0	[1]
Transfers out of Level III (1)	0	[1]
Net change in unrealized loss on available-for-sale investment securities	69
Balance as of March 31, 2023	$ 8,806
[1]Transfers between hierarchy levels are based on the availability of sufficient observable inputs to meet Level II versus Level II criteria. The level designation of each financial instrument is reassessed at the end of each period.

Note 5 - Fair Value Disclosure

Note 5 - Fair Value Disclosure Measurements - Assets Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Individually analyzed loans held for investment		$ 22,315
Fair Value, Nonrecurring [Member]
Individually analyzed loans held for investment	$ 16,842	1,143
Other real estate owned		5,792
Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]
Individually analyzed loans held for investment	0	0
Other real estate owned		0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]
Individually analyzed loans held for investment	0	0
Other real estate owned		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Individually analyzed loans held for investment	$ 16,842	1,143
Other real estate owned		$ 5,792

Note 5 - Fair Value Measureme_6

Note 5 - Fair Value Measurements - Additional Quantitative Information About Assets Measured at Fair Value on Non-recurring Basis (Details) - Fair Value, Nonrecurring [Member] $ in Thousands		Mar. 31, 2023 USD ($)		Dec. 31, 2022 USD ($)
Other real estate owned				$ 5,792
Fair Value, Inputs, Level 3 [Member]
Other real estate owned				5,792
Fair Value, Inputs, Level 3 [Member] | Appraisal of Collateral [Member]
Individually analyzed loans held for investment		$ 16,842	[1]	1,143	[2]
Other real estate owned	[2]			$ 5,792
Fair Value, Inputs, Level 3 [Member] | Appraisal of Collateral [Member] | Minimum [Member]
Individually analyzed loans held for investment	[1]	0.204
Fair Value, Inputs, Level 3 [Member] | Appraisal of Collateral [Member] | Minimum [Member] | Measurement Input, Appraised Value [Member]
Individually analyzed loans held for investment	[3]			0.120
Other real estate owned	[3]			0.084
Fair Value, Inputs, Level 3 [Member] | Appraisal of Collateral [Member] | Maximum [Member]
Individually analyzed loans held for investment		0.311
Fair Value, Inputs, Level 3 [Member] | Appraisal of Collateral [Member] | Weighted Average [Member]
Individually analyzed loans held for investment		(0.204)
[1]Fair value is generally determined through independent appraisals of the underlying collateral, which typically include various level III inputs that are not identifiable, less any associated allowance.[2]Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level III inputs that are not identifiable, less any associated allowance.[3]Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range and weighted average of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal.

Note 5 - Fair Value Measureme_7

Note 5 - Fair Value Measurements - Estimated Fair Value of the Company's Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Reported Value Measurement [Member]
Financial assets:
Net loans	$ 1,362,685	$ 1,338,434
Financial liabilities:
Deposits	1,425,607	1,402,019
Other borrowings	12,010	12,059
Estimate of Fair Value Measurement [Member]
Financial assets:
Net loans	1,317,954	1,298,814
Financial liabilities:
Deposits	2,419,730	1,395,217
Other borrowings	12,010	12,059
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Financial assets:
Net loans	0	0
Financial liabilities:
Deposits	1,180,645	1,163,999
Other borrowings	0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Financial assets:
Net loans	0	0
Financial liabilities:
Deposits	0	0
Other borrowings	0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Financial assets:
Net loans	1,317,954	1,298,814
Financial liabilities:
Deposits	1,239,085	231,218
Other borrowings	$ 12,010	$ 12,059

Note 6 - Accumulated Other Co_3

Note 6 - Accumulated Other Comprehensive Income (Loss) (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	$ 0	$ 0

Note 6 - Accumulated Other Co_4

Note 6 - Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income (Loss) by Component, Net of Tax (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Balance		$ 197,691	$ 145,335
Other comprehensive income (loss)		2,891	(10,136)
Balance		195,165	137,644
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	[1]	(22,144)	3,462
Other comprehensive income (loss)		2,891	(10,136)
Balance	[1]	$ (19,253)	$ (6,674)
[1]All amounts are net of tax. Amounts in parentheses indicate debits to AOCI.

Note 7 - Investment and Equit_3

Note 7 - Investment and Equity Securities (Details Textual)		3 Months Ended		12 Months Ended
		Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Equity Securities, FV-NI, Current		$ 777,000		$ 915,000
Equity Securities, FV-NI, Unrealized Gain (Loss)	[1]	(138,000)	$ 33,000
Proceeds from Sale of Investment Securities		$ 0	$ 0
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions		44
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions		137
Other-than-temporary Impairment Loss, Debt Securities, Available-for-Sale				0
Asset Pledged as Collateral [Member] | Deposits [Member]
Financial Instruments, Owned, at Fair Value		$ 91,200,000		$ 89,900,000
[1]Not within scope of ASC 606

Note 7 - Investment and Equit_4

Note 7 - Investment and Equity Securities - Amortized Cost and Fair Values of Securities Available for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Amortized cost	$ 193,977	$ 192,998
Gross unrealized gains	91	52
Gross unrealized losses	(24,463)	(28,083)
Investment securities available for sale, at fair value	169,605	164,967
Subordinated Debt Securities [Member]
Amortized cost	34,300	32,300
Gross unrealized gains	8	3
Gross unrealized losses	(1,795)	(2,139)
Investment securities available for sale, at fair value	32,513	30,164
Taxable Municipal Bonds [Member]
Amortized cost	500	500
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Investment securities available for sale, at fair value	500	500
Nontaxable Municipal Bonds [Member]
Amortized cost	151,204	151,896
Gross unrealized gains	82	49
Gross unrealized losses	(22,027)	(25,111)
Investment securities available for sale, at fair value	129,259	126,834
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Amortized cost	7,973	8,302
Gross unrealized gains	1	0
Gross unrealized losses	(641)	(833)
Investment securities available for sale, at fair value	$ 7,333	$ 7,469

Note 7 - Investment and Equit_5

Note 7 - Investment and Equity Securities - Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Due in one year or less, amortized costs	$ 570
Due in one year or less, fair value	570
Due after one year through five years, amortized costs	2,935
Due after one year through five years, fair value	2,870
Due after five years through ten years, amortized costs	47,291
Due after five years through ten years, fair value	45,336
Due after ten years, amortized costs	143,181
Due after ten years, fair value	120,829
Amortized costs	193,977	$ 192,998
Fair Value	$ 169,605	$ 164,967

Note 7 - Investment and Equit_6

Note 7 - Investment and Equity Securities - Gross Unrealized Losses and Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Less than Twelve Months, Fair Value	$ 36,087	$ 94,134
Less than Twelve Months, Gross Unrealized Losses	(1,393)	(12,097)
Twelve Months or Greater, Fair Value	114,127	51,244
Twelve Months or Greater, Gross Unrealized Losses	(23,070)	(15,986)
Total, Fair Value	150,214	145,378
Total, Gross Unrealized Losses	(24,463)	(28,083)
Subordinated Debt Securities [Member]
Less than Twelve Months, Fair Value	13,082	12,638
Less than Twelve Months, Gross Unrealized Losses	(418)	(1,129)
Twelve Months or Greater, Fair Value	17,923	8,790
Twelve Months or Greater, Gross Unrealized Losses	(1,377)	(1,010)
Total, Fair Value	31,005	21,428
Total, Gross Unrealized Losses	(1,795)	(2,139)
Nontaxable Municipal Bonds [Member]
Less than Twelve Months, Fair Value	22,396	75,343
Less than Twelve Months, Gross Unrealized Losses	(962)	(10,488)
Twelve Months or Greater, Fair Value	89,741	41,138
Twelve Months or Greater, Gross Unrealized Losses	(21,065)	(14,623)
Total, Fair Value	112,137	116,481
Total, Gross Unrealized Losses	(22,027)	(25,111)
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Less than Twelve Months, Fair Value	609	6,153
Less than Twelve Months, Gross Unrealized Losses	(13)	(480)
Twelve Months or Greater, Fair Value	6,463	1,316
Twelve Months or Greater, Gross Unrealized Losses	(628)	(353)
Total, Fair Value	7,072	7,469
Total, Gross Unrealized Losses	$ (641)	$ (833)

Note 8 - Loans and Related Al_3

Note 8 - Loans and Related Allowance for Credit Losses (Details Textual) Pure in Thousands	3 Months Ended		15 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Number of Days Past Due (Day)			90 days
Financing Receivable, before Allowance for Credit Loss, Total	$ 1,382,847,000		$ 1,382,847,000	$ 1,352,872,000
Financing Receivable, Modified, Accumulated	4,336,000		4,336,000	3,300,000
Financing Receivable, Allowance for Credit Loss, Troubled Debt Restructuring				$ 72,000
Financing Receivable, Nonaccrual, Interest Income	115,000	$ 64,000
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts		0
Threshold For Loans Evaluated For Impairment [Member]
Financing Receivable, before Allowance for Credit Loss, Total	750,000		750,000
Threshold For Loans Evaluated For Impairment [Member] | Outside Consultant [Member]
Financing Receivable, before Allowance for Credit Loss, Total	250,000		250,000
Threshold For Loans Evaluated For Impairment [Member] | Criticized Relationships [Member]
Financing Receivable, before Allowance for Credit Loss, Total	$ 150,000		$ 150,000

Note 8 - Loans and Related Al_4

Note 8 - Loans and Related Allowance for Credit Losses - Primary Segments of the Loan Portfolio (Details) - USD ($)	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Outstanding balance	$ 1,382,847,000		$ 1,352,872,000
Less: Allowance for credit losses	(20,162,000)	$ (14,438)	(14,438,000)	$ (14,492,000)	$ (14,342,000)
Net loans	1,362,685,000		1,338,434,000
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Outstanding balance	185,661,000		191,748,000
Less: Allowance for credit losses	(2,678,000)	(2,203)	(2,203,000)	(1,765,000)	(1,836,000)
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Outstanding balance	394,331,000		380,580,000
Less: Allowance for credit losses	(4,712,000)	(5,597)	(5,597,000)	(7,672,000)	(7,431,000)
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Outstanding balance	63,892,000		58,251,000
Less: Allowance for credit losses	(1,371,000)	(662)	(662,000)	(419,000)	(454,000)
Residential Portfolio Segment [Member]
Outstanding balance	306,179,000		296,308,000
Less: Allowance for credit losses	(4,967,000)	(2,047)	(2,047,000)	(1,801,000)	(1,740,000)
Commercial And Industrial [Member]
Outstanding balance	195,024,000		195,602,000
Less: Allowance for credit losses	(3,819,000)	(1,483)	(1,483,000)	(904,000)	(882,000)
Home Equity Lines of Credit [Member]
Outstanding balance	126,555,000		128,065,000
Less: Allowance for credit losses	(809,000)	(1,753)	(1,753,000)	(1,355,000)	(1,452,000)
Construction and Other [Member]
Outstanding balance	103,389,000		94,199,000
Less: Allowance for credit losses	(1,553,000)	(609)	(609,000)	(558,000)	(533,000)
Consumer Portfolio Segment [Member]
Outstanding balance	7,816,000		8,119,000
Less: Allowance for credit losses	$ (253,000)	$ (84)	$ (84,000)	$ (18,000)	$ (14,000)

Note 8 - Loans and Related Al_5

Note 8 - Loans and Related Allowance for Credit Losses - Classes of the Loan Portfolio Summarized by Credit Quality (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Term loans amortized, current year	$ 63,204
Term loans amortized, one year before	286,299
Term loans amortized, two years before	228,544
Term loans amortized, three years before	140,153
Term loans amortized, four years before	89,638
Term loans amortized, prior	368,854
Term loans amortized, revolving	206,155
Outstanding balance	1,382,847		$ 1,352,872
Charge-offs	(112)	$ (61)
Pass [Member]
Outstanding balance			1,272,088
Special Mention [Member]
Outstanding balance			21,504
Substandard [Member]
Outstanding balance			59,280
Doubtful [Member]
Outstanding balance			0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Term loans amortized, current year	3,245
Term loans amortized, one year before	35,446
Term loans amortized, two years before	42,999
Term loans amortized, three years before	27,801
Term loans amortized, four years before	15,502
Term loans amortized, prior	56,805
Term loans amortized, revolving	3,863
Outstanding balance	185,661		191,748
Current-period gross charge-offs current	0
Current-period gross charge-offs one year before	0
Current-period gross charge-offs, two years before	0
Current-period gross charge-offs, three years before	0
Current-period gross charge-offs, four years before	0
Current-period gross charge-offs, prior	0
Current-period gross charge-offs, revolving	0
Charge-offs	0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Pass [Member]
Term loans amortized, current year	3,245
Term loans amortized, one year before	31,354
Term loans amortized, two years before	42,999
Term loans amortized, three years before	26,212
Term loans amortized, four years before	14,801
Term loans amortized, prior	48,029
Term loans amortized, revolving	3,863
Outstanding balance	170,503		176,400
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Special Mention [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	4,092
Term loans amortized, two years before	0
Term loans amortized, three years before	1,589
Term loans amortized, four years before	701
Term loans amortized, prior	431
Term loans amortized, revolving	0
Outstanding balance	6,813		6,873
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Substandard [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	0
Term loans amortized, three years before	0
Term loans amortized, four years before	0
Term loans amortized, prior	8,345
Term loans amortized, revolving	0
Outstanding balance	8,345		8,475
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Doubtful [Member]
Outstanding balance			0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Term loans amortized, current year	17,592
Term loans amortized, one year before	73,913
Term loans amortized, two years before	50,323
Term loans amortized, three years before	24,380
Term loans amortized, four years before	41,888
Term loans amortized, prior	184,041
Term loans amortized, revolving	2,194
Outstanding balance	394,331		380,580
Current-period gross charge-offs current	0
Current-period gross charge-offs one year before	0
Current-period gross charge-offs, two years before	0
Current-period gross charge-offs, three years before	0
Current-period gross charge-offs, four years before	0
Current-period gross charge-offs, prior	0
Current-period gross charge-offs, revolving	0
Charge-offs	0	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Pass [Member]
Term loans amortized, current year	17,592
Term loans amortized, one year before	71,406
Term loans amortized, two years before	49,627
Term loans amortized, three years before	24,380
Term loans amortized, four years before	37,711
Term loans amortized, prior	138,870
Term loans amortized, revolving	2,194
Outstanding balance	341,780		331,584
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Special Mention [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	2,507
Term loans amortized, two years before	0
Term loans amortized, three years before	0
Term loans amortized, four years before	0
Term loans amortized, prior	3,836
Term loans amortized, revolving	0
Outstanding balance	6,343		6,387
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Substandard [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	0
Term loans amortized, three years before	0
Term loans amortized, four years before	0
Term loans amortized, prior	41,335
Term loans amortized, revolving	0
Outstanding balance	41,335		42,609
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Doubtful [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	696
Term loans amortized, three years before	0
Term loans amortized, four years before	4,177
Term loans amortized, prior	0
Term loans amortized, revolving	0
Outstanding balance	4,873		0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Term loans amortized, current year	4,380
Term loans amortized, one year before	28,027
Term loans amortized, two years before	4,382
Term loans amortized, three years before	10,736
Term loans amortized, four years before	1,423
Term loans amortized, prior	14,803
Term loans amortized, revolving	141
Outstanding balance	63,892		58,251
Current-period gross charge-offs current	0
Current-period gross charge-offs one year before	0
Current-period gross charge-offs, two years before	0
Current-period gross charge-offs, three years before	0
Current-period gross charge-offs, four years before	0
Current-period gross charge-offs, prior	0
Current-period gross charge-offs, revolving	0
Charge-offs	0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Pass [Member]
Term loans amortized, current year	4,380
Term loans amortized, one year before	28,027
Term loans amortized, two years before	4,382
Term loans amortized, three years before	10,736
Term loans amortized, four years before	1,423
Term loans amortized, prior	14,803
Term loans amortized, revolving	141
Outstanding balance	63,892		58,251
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Special Mention [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	0
Term loans amortized, three years before	0
Term loans amortized, four years before	0
Term loans amortized, prior	0
Term loans amortized, revolving	0
Outstanding balance	0		0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Substandard [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	0
Term loans amortized, three years before	0
Term loans amortized, four years before	0
Term loans amortized, prior	0
Term loans amortized, revolving	0
Outstanding balance	0		0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Doubtful [Member]
Outstanding balance			0
Residential Portfolio Segment [Member]
Term loans amortized, current year	12,659
Term loans amortized, one year before	54,476
Term loans amortized, two years before	82,314
Term loans amortized, three years before	41,768
Term loans amortized, four years before	21,133
Term loans amortized, prior	93,308
Term loans amortized, revolving	521
Outstanding balance	306,179		296,308
Current-period gross charge-offs current	0
Current-period gross charge-offs one year before	0
Current-period gross charge-offs, two years before	0
Current-period gross charge-offs, three years before	0
Current-period gross charge-offs, four years before	0
Current-period gross charge-offs, prior	0
Current-period gross charge-offs, revolving	0
Charge-offs	0	0
Residential Portfolio Segment [Member] | Pass [Member]
Term loans amortized, current year	12,659
Term loans amortized, one year before	54,476
Term loans amortized, two years before	82,056
Term loans amortized, three years before	41,768
Term loans amortized, four years before	21,105
Term loans amortized, prior	91,881
Term loans amortized, revolving	521
Outstanding balance	304,466		294,254
Residential Portfolio Segment [Member] | Special Mention [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	0
Term loans amortized, three years before	0
Term loans amortized, four years before	0
Term loans amortized, prior	0
Term loans amortized, revolving	0
Outstanding balance	0		0
Residential Portfolio Segment [Member] | Substandard [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	258
Term loans amortized, three years before	0
Term loans amortized, four years before	28
Term loans amortized, prior	1,427
Term loans amortized, revolving	0
Outstanding balance	1,713		2,054
Residential Portfolio Segment [Member] | Doubtful [Member]
Outstanding balance			0
Commercial And Industrial [Member]
Term loans amortized, current year	7,682
Term loans amortized, one year before	48,535
Term loans amortized, two years before	22,739
Term loans amortized, three years before	34,502
Term loans amortized, four years before	4,254
Term loans amortized, prior	10,869
Term loans amortized, revolving	66,443
Outstanding balance	195,024		195,602
Current-period gross charge-offs current	0
Current-period gross charge-offs one year before	0
Current-period gross charge-offs, two years before	0
Current-period gross charge-offs, three years before	0
Current-period gross charge-offs, four years before	0
Current-period gross charge-offs, prior	(54)
Current-period gross charge-offs, revolving	0
Charge-offs	(54)	(30)
Commercial And Industrial [Member] | Pass [Member]
Term loans amortized, current year	7,682
Term loans amortized, one year before	48,127
Term loans amortized, two years before	22,392
Term loans amortized, three years before	33,958
Term loans amortized, four years before	3,950
Term loans amortized, prior	9,180
Term loans amortized, revolving	59,737
Outstanding balance	185,026		185,674
Commercial And Industrial [Member] | Special Mention [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	390
Term loans amortized, two years before	347
Term loans amortized, three years before	166
Term loans amortized, four years before	145
Term loans amortized, prior	567
Term loans amortized, revolving	6,178
Outstanding balance	7,793		7,936
Commercial And Industrial [Member] | Substandard [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	18
Term loans amortized, two years before	0
Term loans amortized, three years before	378
Term loans amortized, four years before	159
Term loans amortized, prior	1,122
Term loans amortized, revolving	528
Outstanding balance	2,205		1,992
Commercial And Industrial [Member] | Doubtful [Member]
Outstanding balance			0
Home Equity Lines of Credit [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	233
Term loans amortized, two years before	247
Term loans amortized, three years before	47
Term loans amortized, four years before	97
Term loans amortized, prior	3,291
Term loans amortized, revolving	122,640
Outstanding balance	126,555		128,065
Current-period gross charge-offs current	0
Current-period gross charge-offs one year before	0
Current-period gross charge-offs, two years before	0
Current-period gross charge-offs, three years before	0
Current-period gross charge-offs, four years before	0
Current-period gross charge-offs, prior	0
Current-period gross charge-offs, revolving	0
Charge-offs	0	(25)
Home Equity Lines of Credit [Member] | Pass [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	233
Term loans amortized, two years before	247
Term loans amortized, three years before	22
Term loans amortized, four years before	66
Term loans amortized, prior	2,813
Term loans amortized, revolving	122,027
Outstanding balance	125,408		127,080
Home Equity Lines of Credit [Member] | Special Mention [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	0
Term loans amortized, three years before	0
Term loans amortized, four years before	0
Term loans amortized, prior	0
Term loans amortized, revolving	0
Outstanding balance	0		0
Home Equity Lines of Credit [Member] | Substandard [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	0
Term loans amortized, three years before	25
Term loans amortized, four years before	31
Term loans amortized, prior	478
Term loans amortized, revolving	613
Outstanding balance	1,147		985
Home Equity Lines of Credit [Member] | Doubtful [Member]
Outstanding balance			0
Construction and Other [Member]
Term loans amortized, current year	16,912
Term loans amortized, one year before	44,063
Term loans amortized, two years before	24,851
Term loans amortized, three years before	727
Term loans amortized, four years before	5,236
Term loans amortized, prior	1,247
Term loans amortized, revolving	10,353
Outstanding balance	103,389		94,199
Current-period gross charge-offs current	0
Current-period gross charge-offs one year before	0
Current-period gross charge-offs, two years before	0
Current-period gross charge-offs, three years before	0
Current-period gross charge-offs, four years before	0
Current-period gross charge-offs, prior	0
Current-period gross charge-offs, revolving	0
Charge-offs	0	0
Construction and Other [Member] | Pass [Member]
Term loans amortized, current year	16,912
Term loans amortized, one year before	44,063
Term loans amortized, two years before	24,431
Term loans amortized, three years before	727
Term loans amortized, four years before	2,902
Term loans amortized, prior	1,247
Term loans amortized, revolving	9,253
Outstanding balance	99,535		90,728
Construction and Other [Member] | Special Mention [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	0
Term loans amortized, three years before	0
Term loans amortized, four years before	297
Term loans amortized, prior	0
Term loans amortized, revolving	0
Outstanding balance	297		308
Construction and Other [Member] | Substandard [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	420
Term loans amortized, three years before	0
Term loans amortized, four years before	2,037
Term loans amortized, prior	0
Term loans amortized, revolving	1,100
Outstanding balance	3,557		3,163
Construction and Other [Member] | Doubtful [Member]
Outstanding balance			0
Consumer Portfolio Segment [Member]
Term loans amortized, current year	734
Term loans amortized, one year before	1,606
Term loans amortized, two years before	689
Term loans amortized, three years before	192
Term loans amortized, four years before	105
Term loans amortized, prior	4,490
Term loans amortized, revolving	0
Outstanding balance	7,816		8,119
Current-period gross charge-offs current	0
Current-period gross charge-offs one year before	(22)
Current-period gross charge-offs, two years before	0
Current-period gross charge-offs, three years before	0
Current-period gross charge-offs, four years before	0
Current-period gross charge-offs, prior	(7)
Current-period gross charge-offs, revolving	(29)
Charge-offs	(58)	$ (6)
Consumer Portfolio Segment [Member] | Pass [Member]
Term loans amortized, current year	734
Term loans amortized, one year before	1,606
Term loans amortized, two years before	689
Term loans amortized, three years before	191
Term loans amortized, four years before	105
Term loans amortized, prior	4,490
Term loans amortized, revolving	0
Outstanding balance	7,815		8,117
Consumer Portfolio Segment [Member] | Special Mention [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	0
Term loans amortized, three years before	0
Term loans amortized, four years before	0
Term loans amortized, prior	0
Term loans amortized, revolving	0
Outstanding balance	0		0
Consumer Portfolio Segment [Member] | Substandard [Member]
Term loans amortized, current year	0
Term loans amortized, one year before	0
Term loans amortized, two years before	0
Term loans amortized, three years before	1
Term loans amortized, four years before	0
Term loans amortized, prior	0
Term loans amortized, revolving	0
Outstanding balance	$ 1		2
Consumer Portfolio Segment [Member] | Doubtful [Member]
Outstanding balance			$ 0

Note 8 - Loans and Related Al_6

Note 8 - Loans and Related Allowance for Credit Losses - Collateral-dependent Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Outstanding balance	$ 1,382,847	$ 1,352,872
Real Estate [Member]
Outstanding balance	16,151
Blanket Lien [Member]
Outstanding balance	47
Investment and Cash [Member]
Outstanding balance	0
Other Collateral [Member]
Outstanding balance	18
Collateral Pledged [Member]
Outstanding balance	16,216
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Outstanding balance	394,331	380,580
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Real Estate [Member]
Outstanding balance	15,854
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Blanket Lien [Member]
Outstanding balance	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Investment and Cash [Member]
Outstanding balance	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Other Collateral [Member]
Outstanding balance	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Collateral Pledged [Member]
Outstanding balance	15,854
Residential Portfolio Segment [Member]
Outstanding balance	306,179	296,308
Residential Portfolio Segment [Member] | Real Estate [Member]
Outstanding balance	177
Residential Portfolio Segment [Member] | Blanket Lien [Member]
Outstanding balance	0
Residential Portfolio Segment [Member] | Investment and Cash [Member]
Outstanding balance	0
Residential Portfolio Segment [Member] | Other Collateral [Member]
Outstanding balance	0
Residential Portfolio Segment [Member] | Collateral Pledged [Member]
Outstanding balance	177
Commercial And Industrial [Member]
Outstanding balance	195,024	195,602
Commercial And Industrial [Member] | Real Estate [Member]
Outstanding balance	0
Commercial And Industrial [Member] | Blanket Lien [Member]
Outstanding balance	47
Commercial And Industrial [Member] | Investment and Cash [Member]
Outstanding balance	0
Commercial And Industrial [Member] | Other Collateral [Member]
Outstanding balance	18
Commercial And Industrial [Member] | Collateral Pledged [Member]
Outstanding balance	65
Home Equity Lines of Credit [Member]
Outstanding balance	126,555	$ 128,065
Home Equity Lines of Credit [Member] | Real Estate [Member]
Outstanding balance	120
Home Equity Lines of Credit [Member] | Blanket Lien [Member]
Outstanding balance	0
Home Equity Lines of Credit [Member] | Investment and Cash [Member]
Outstanding balance	0
Home Equity Lines of Credit [Member] | Other Collateral [Member]
Outstanding balance	0
Home Equity Lines of Credit [Member] | Collateral Pledged [Member]
Outstanding balance	$ 120

Note 8 - Loans and Related Al_7

Note 8 - Loans and Related Allowance for Credit Losses - Impaired Loans by Class (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Recorded investment, with no related allowance	$ 6,451
Unpaid principal balance, with no related allowance	6,612
Recorded investment, with related allowance	15,864
Unpaid principal balance, with related allowance	15,864
Related allowance	689
Recorded investment	22,315
Unpaid principal balance	22,476
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Recorded investment, with no related allowance	4,141
Unpaid principal balance, with no related allowance	4,141
Recorded investment, with related allowance	1,509
Unpaid principal balance, with related allowance	1,509
Related allowance	407
Recorded investment	5,650
Unpaid principal balance	5,650
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Recorded investment, with no related allowance	1,042
Unpaid principal balance, with no related allowance	1,042
Recorded investment, with related allowance	12,528
Unpaid principal balance, with related allowance	12,528
Related allowance	167
Recorded investment	13,570
Unpaid principal balance	13,570
Residential Portfolio Segment [Member]
Recorded investment, with no related allowance	706
Unpaid principal balance, with no related allowance	770
Recorded investment, with related allowance	317
Unpaid principal balance, with related allowance	317
Related allowance	28
Recorded investment	1,023
Unpaid principal balance	1,087
Commercial And Industrial [Member]
Recorded investment, with no related allowance	450
Unpaid principal balance, with no related allowance	547
Recorded investment, with related allowance	1,378
Unpaid principal balance, with related allowance	1,378
Related allowance	39
Recorded investment	1,828
Unpaid principal balance	1,925
Home Equity Lines of Credit [Member]
Recorded investment, with no related allowance	112
Unpaid principal balance, with no related allowance	112
Recorded investment, with related allowance	132
Unpaid principal balance, with related allowance	132
Related allowance	48
Recorded investment	244
Unpaid principal balance	$ 244

Note 8 - Loans and Related Al_8

Note 8 - Loans and Related Allowance for Credit Losses - Additional Information on Impaired Loans (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Average recorded investment	$ 7,888
Interest income recognized	98
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Average recorded investment	724
Interest income recognized	11
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Average recorded investment	5,255
Interest income recognized	58
Residential Portfolio Segment [Member]
Average recorded investment	1,050
Interest income recognized	12
Commercial And Industrial [Member]
Average recorded investment	609
Interest income recognized	14
Home Equity Lines of Credit [Member]
Average recorded investment	250
Interest income recognized	$ 3

Note 8 - Loans and Related Al_9

Note 8 - Loans and Related Allowance for Credit Losses - Loans Acquired (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Dec. 01, 2022
Outstanding balance	$ 1,382,847	$ 1,352,872
Carrying amount	$ 1,362,685	1,338,434
Financial Asset Acquired with Credit Deterioration [Member]
Outstanding balance		6,068
Liberty Bancshares Inc [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Outstanding balance		7,998	$ 7,919
Carrying amount		$ 6,068	$ 6,019

Note 8 - Loans and Related A_10

Note 8 - Loans and Related Allowance for Credit Losses - Past Due Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, before Allowance for Credit Loss, Total	$ 1,382,847	$ 1,352,872
Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, before Allowance for Credit Loss, Total		6,068
Financial Asset, Not Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	1,371,521	1,349,283
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	5,002	2,908
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	434	260
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	5,890	421
Financial Asset, Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	11,326	3,589
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Financing Receivable, before Allowance for Credit Loss, Total	185,661	191,748
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, before Allowance for Credit Loss, Total		0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	185,661	191,748
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Financing Receivable, before Allowance for Credit Loss, Total	394,331	380,580
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, before Allowance for Credit Loss, Total		2,992
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	387,309	380,467
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	1,454	113
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	5,568	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	7,022	113
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Financing Receivable, before Allowance for Credit Loss, Total	63,892	58,251
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, before Allowance for Credit Loss, Total		0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	63,892	58,251
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Residential Portfolio Segment [Member]
Financing Receivable, before Allowance for Credit Loss, Total	306,179	296,308
Residential Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, before Allowance for Credit Loss, Total		24
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	305,310	293,698
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	334	2,093
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	324	111
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	211	406
Residential Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	869	2,610
Commercial And Industrial [Member]
Financing Receivable, before Allowance for Credit Loss, Total	195,024	195,602
Commercial And Industrial [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, before Allowance for Credit Loss, Total		0
Commercial And Industrial [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	194,903	195,532
Commercial And Industrial [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	29	62
Commercial And Industrial [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	4
Commercial And Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	92	4
Commercial And Industrial [Member] | Financial Asset, Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	121	70
Home Equity Lines of Credit [Member]
Financing Receivable, before Allowance for Credit Loss, Total	126,555	128,065
Home Equity Lines of Credit [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, before Allowance for Credit Loss, Total		0
Home Equity Lines of Credit [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	123,241	127,494
Home Equity Lines of Credit [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	3,185	415
Home Equity Lines of Credit [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	110	145
Home Equity Lines of Credit [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	19	11
Home Equity Lines of Credit [Member] | Financial Asset, Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	3,314	571
Construction and Other [Member]
Financing Receivable, before Allowance for Credit Loss, Total	103,389	94,199
Construction and Other [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, before Allowance for Credit Loss, Total		3,052
Construction and Other [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	103,389	93,997
Construction and Other [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	202
Construction and Other [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Construction and Other [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Construction and Other [Member] | Financial Asset, Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	202
Consumer Portfolio Segment [Member]
Financing Receivable, before Allowance for Credit Loss, Total	7,816	8,119
Consumer Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, before Allowance for Credit Loss, Total		0
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	7,816	8,096
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	23
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0	0
Consumer Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Financing Receivable, before Allowance for Credit Loss, Total	$ 0	$ 23

Note 8 - Loans and Related A_11

Note 8 - Loans and Related Allowance for Credit Losses - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Nonaccrual, No Allowance	$ 5,377
Nonaccrual, With Allowance	1,505
Nonaccrual	6,882	$ 2,111
Still Accruing	0	0
Financing Receivable, before Allowance for Credit Loss, Total	1,382,847	1,352,872
Loans, current balance	6,882	2,111
Loans, past due	0	0
Nonperforming Financial Instruments [Member]
Financing Receivable, before Allowance for Credit Loss, Total	6,882
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Nonaccrual, No Allowance	0
Nonaccrual, With Allowance	65
Nonaccrual	65	69
Still Accruing	0	0
Financing Receivable, before Allowance for Credit Loss, Total	185,661	191,748
Loans, current balance	65	69
Loans, past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Nonperforming Financial Instruments [Member]
Financing Receivable, before Allowance for Credit Loss, Total	65
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Nonaccrual, No Allowance	4,873
Nonaccrual, With Allowance	0
Nonaccrual	4,873
Still Accruing	0
Financing Receivable, before Allowance for Credit Loss, Total	394,331	380,580
Loans, current balance	4,873
Loans, past due	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Nonperforming Financial Instruments [Member]
Financing Receivable, before Allowance for Credit Loss, Total	4,873
Residential Portfolio Segment [Member]
Nonaccrual, No Allowance	173
Nonaccrual, With Allowance	916
Nonaccrual	1,089	1,431
Still Accruing	0	0
Financing Receivable, before Allowance for Credit Loss, Total	306,179	296,308
Loans, current balance	1,089	1,431
Loans, past due	0	0
Residential Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]
Financing Receivable, before Allowance for Credit Loss, Total	1,089
Commercial And Industrial [Member]
Nonaccrual, No Allowance	170
Nonaccrual, With Allowance	92
Nonaccrual	262	186
Still Accruing	0	0
Financing Receivable, before Allowance for Credit Loss, Total	195,024	195,602
Loans, current balance	262	186
Loans, past due	0	0
Commercial And Industrial [Member] | Nonperforming Financial Instruments [Member]
Financing Receivable, before Allowance for Credit Loss, Total	262
Home Equity Lines of Credit [Member]
Nonaccrual, No Allowance	0
Nonaccrual, With Allowance	364
Nonaccrual	364	191
Still Accruing	0	0
Financing Receivable, before Allowance for Credit Loss, Total	126,555	128,065
Loans, current balance	364	191
Loans, past due	0	0
Home Equity Lines of Credit [Member] | Nonperforming Financial Instruments [Member]
Financing Receivable, before Allowance for Credit Loss, Total	364
Construction and Other [Member]
Nonaccrual, No Allowance	0
Nonaccrual, With Allowance	66
Nonaccrual	66	68
Still Accruing	0	0
Financing Receivable, before Allowance for Credit Loss, Total	103,389	94,199
Loans, current balance	66	68
Loans, past due	0	0
Construction and Other [Member] | Nonperforming Financial Instruments [Member]
Financing Receivable, before Allowance for Credit Loss, Total	66
Consumer Portfolio Segment [Member]
Nonaccrual, No Allowance	161
Nonaccrual, With Allowance	2
Nonaccrual	163	166
Still Accruing	0	0
Financing Receivable, before Allowance for Credit Loss, Total	7,816	8,119
Loans, current balance	163	166
Loans, past due	0	$ 0
Consumer Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]
Financing Receivable, before Allowance for Credit Loss, Total	$ 163

Note 8 - Loans and Related A_12

Note 8 - Loans and Related Allowance for Credit Losses - Allowance for Loan Losses (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Beginning balance	$ 14,438,000	$ 14,342,000
Charge-offs	(112,000)	(61,000)
Recoveries	120,000	211,000
Provision	334,000	0
Ending balance	20,162,000	14,492,000
Accounting Standards Update 2016-13 [Member]
Provision	334,000
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	5,382,000
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Beginning balance	2,203,000	1,836,000
Charge-offs	0	0
Recoveries	1,000	1,000
Provision	(337,000)	(72,000)
Ending balance	2,678,000	1,765,000
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	811,000
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Beginning balance	5,597,000	7,431,000
Charge-offs	0	0
Recoveries	0	0
Provision	321,000	241,000
Ending balance	4,712,000	7,672,000
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	(1,206,000)
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Beginning balance	662,000	454,000
Charge-offs	0	0
Recoveries	0	0
Provision	118,000	(35,000)
Ending balance	1,371,000	419,000
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	591,000
Residential Portfolio Segment [Member]
Beginning balance	2,047,000	1,740,000
Charge-offs	0	0
Recoveries	0	27,000
Provision	176,000	34,000
Ending balance	4,967,000	1,801,000
Residential Portfolio Segment [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	2,744,000
Commercial And Industrial [Member]
Beginning balance	1,483,000	882,000
Charge-offs	(54,000)	(30,000)
Recoveries	10,000	149,000
Provision	60,000	(97,000)
Ending balance	3,819,000	904,000
Commercial And Industrial [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	2,320,000
Home Equity Lines of Credit [Member]
Beginning balance	1,753,000	1,452,000
Charge-offs	0	(25,000)
Recoveries	70,000	0
Provision	17,000	(72,000)
Ending balance	809,000	1,355,000
Home Equity Lines of Credit [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	(1,031,000)
Construction and Other [Member]
Beginning balance	609,000	533,000
Charge-offs	0	0
Recoveries	0	0
Provision	(12,000)	25,000
Ending balance	1,553,000	558,000
Construction and Other [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	956,000
Consumer Portfolio Segment [Member]
Beginning balance	84,000	14,000
Charge-offs	(58,000)	(6,000)
Recoveries	39,000	34,000
Provision	(9,000)	(24,000)
Ending balance	253,000	$ 18,000
Consumer Portfolio Segment [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	$ 197,000

Note 8 - Loans and Related A_13

Note 8 - Loans and Related Allowance for Credit Losses - Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Modified, Amortized cost	$ 4,336		$ 3,300
to Total Financing Receivables, Percentage	0.31%
Commercial And Industrial [Member]
Modified, Amortized cost	$ 149
to Total Financing Receivables, Percentage	0.01%
Number of contracts		1
Pre-modification outstanding recorded investment		$ 25
Post-modification outstanding recorded investment		$ 25
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Modified, Amortized cost	$ 4,179
to Total Financing Receivables, Percentage	0.30%
Consumer Portfolio Segment [Member]
Modified, Amortized cost	$ 8
to Total Financing Receivables, Percentage	0%
Extended Maturity [Member]
Modified, Amortized cost	$ 4,336
Extended Maturity [Member] | Commercial And Industrial [Member]
Modified, Amortized cost	149
Number of contracts		1
Extended Maturity [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Modified, Amortized cost	4,179
Extended Maturity [Member] | Consumer Portfolio Segment [Member]
Modified, Amortized cost	8
Other Restructurings [Member] | Commercial And Industrial [Member]
Number of contracts		0
Payment Deferral [Member]
Modified, Amortized cost	0
Payment Deferral [Member] | Commercial And Industrial [Member]
Modified, Amortized cost	0
Payment Deferral [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Modified, Amortized cost	0
Payment Deferral [Member] | Consumer Portfolio Segment [Member]
Modified, Amortized cost	0
Payment Deferral and Extended Maturity [Member]
Modified, Amortized cost	0
Payment Deferral and Extended Maturity [Member] | Commercial And Industrial [Member]
Modified, Amortized cost	0
Payment Deferral and Extended Maturity [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Modified, Amortized cost	0
Payment Deferral and Extended Maturity [Member] | Consumer Portfolio Segment [Member]
Modified, Amortized cost	0
Interest Rate Reduction and Term Past Due [Member]
Modified, Amortized cost	0
Interest Rate Reduction and Term Past Due [Member] | Commercial And Industrial [Member]
Modified, Amortized cost	0
Interest Rate Reduction and Term Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Modified, Amortized cost	0
Interest Rate Reduction and Term Past Due [Member] | Consumer Portfolio Segment [Member]
Modified, Amortized cost	$ 0

Note 10 - Business Combinatio_2

Note 10 - Business Combination (Details Textual) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 01, 2022
Amortization of Intangible Assets	$ 265,000	$ 77,000
Liberty Bancshares Inc [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Including Goodwill	16,700,000
Goodwill, Impairment Loss	0
Amortization of Intangible Assets			$ 0
Liberty Bancshares Inc [Member] | Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life (Year)				10 years
Finite-Lived Intangible Assets, Gross	6,400,000
Finite-Lived Intangible Assets, Accumulated Amortization	$ 254,000

Note 10 - Business Combinatio_3

Note 10 - Business Combination - Business Purchase (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 01, 2022	Mar. 31, 2023	Dec. 31, 2022
Goodwill resulting from the Liberty merger		$ 31,735	$ 31,735
Liberty Bancshares Inc [Member]
Middlefield Banc Corp. shares issued (in shares)	2,561,513
Value assigned to Middlefield Banc Corp. common shares (in dollars per share)	$ 28.60
Purchase price assigned to Liberty common shares exchanged for	$ 73,259
Cash paid in lieu of fractional shares	6
Total Purchase Price	73,265
Liberty shareholders equity	49,041
Allowance for credit loss	4,497
Loans - interest rate	646
Loans - general credit	(3,433)
Core deposit intangible	6,669
Investments	(1,461)
Mortgage servicing rights	830
Other	94
Time deposits	(228)
Deferred taxes	(54)
Total net assets acquired	56,601
Goodwill resulting from the Liberty merger	$ 16,664

Note 10 - Business Combinatio_4

Note 10 - Business Combination - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 01, 2022	Mar. 31, 2023	Dec. 31, 2022
Goodwill resulting from the Liberty merger		$ 31,735	$ 31,735
Liberty Bancshares Inc [Member]
Total purchase price	$ 73,265
Cash	18,406
Loans and loans held for sale	312,618
Investments	57,907
Premises and equipment, net	6,087
Accrued interest receivable	1,563
Bank-owned life insurance	16,290
Core deposit intangible	6,670
Mortgage servicing rights	1,680
Other assets	3,111
Time deposits	(69,278)
Non-time deposits	(294,684)
Accrued interest payable	(246)
Other liabilities	(3,523)
Total net assets acquired	56,601
Goodwill resulting from the Liberty merger	$ 16,664

Note 10 - Business Combinatio_5

Note 10 - Business Combination - Estimated Future Amortization Expense (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Total	$ 7,436	$ 7,701
Liberty Bancshares Inc [Member] | Core Deposits [Member]
Remaining 2023	572
2024	750
2025	733
2026	714
2027	691
Thereafter	2,954
Total	$ 6,414

Note 10 - Business Combinatio_6

Note 10 - Business Combination - Pro Forma Information (Details) - Liberty Bancshares Inc [Member] $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($) $ / shares
Net interest income	$ 14,979
Noninterest income	2,156
Net income	$ 4,777
Basic (in dollars per share) | $ / shares	$ 0.57
Diluted (in dollars per share) | $ / shares	$ 0.57