Middlefield Banc (MBCN) 10-K 12 Mar 21 2020 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	Dec. 31, 2020	Mar. 12, 2021	Jun. 30, 2020
Document Information [Line Items]
Entity Registrant Name	Middlefield Banc Corp.
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020
Document, Type	10-K
Document, Annual Report	true
Document, Period End Date	Dec. 31, 2020
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
City Area Code	440
Local Phone Number	632-1666
Title of 12(b) Security	Common Stock
Trading Symbol	MBCN
Security Exchange Name	NASDAQ
Entity, Well-known Seasoned Issuer	No
Entity, Voluntary Filers	No
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, Public Float			$ 125,100,000
Entity, Common Stock Shares, Outstanding		6,427,667
Documents Incorporated By Reference Text Block	Portions of the registrant’s definitive proxy statements for the 2021 Annual Meeting of Shareholders are incorporated by reference in Part III of this report. Portions of the Annual Report to Shareholders for the year ended December 31, 2020 are incorporated by reference into Part I and Part II of this report.
Amendment Flag	false
Entity Central Index Key	0000836147

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($)	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 92,874,000	$ 35,113,000
Federal funds sold	19,543,000	0
Cash and cash equivalents	112,417,000	35,113,000
Equity securities, at fair value	609,000	710,000
Investment securities available for sale, at fair value	114,360,000	105,733,000
Loans held for sale	878,000	1,220,000
Loans:
Loans	1,104,085,000	984,258,000
Less: allowance for loan and lease losses	13,459,000	6,768,000
Net loans	1,090,626,000	977,490,000
Premises and equipment, net	18,333,000	17,874,000
Goodwill	15,071,000	15,071,000
Core deposit intangibles	1,724,000	2,056,000
Bank-owned life insurance	16,938,000	16,511,000
Other real estate owned	7,387,000	155,000
Accrued interest receivable and other assets	13,636,000	10,542,000
TOTAL ASSETS	1,391,979,000	1,182,475,000
LIABILITIES
Noninterest-bearing demand	291,347,000	191,370,000
Interest-bearing demand	195,722,000	107,844,000
Money market	198,493,000	160,826,000
Savings	243,888,000	192,003,000
Time	295,750,000	368,800,000
Total deposits	1,225,200,000	1,020,843,000
Short-term borrowings:
Federal funds purchased	0	75,000
Federal Home Loan Bank advances	0	5,000,000
Total short-term borrowings	0	5,075,000
Other borrowings	17,038,000	12,750,000
Accrued interest payable and other liabilities	5,931,000	6,032,000
TOTAL LIABILITIES	1,248,169,000	1,044,700,000
STOCKHOLDERS' EQUITY
Common stock, no par value; 10,000,000 shares authorized, 7,308,685 and 7,294,792 shares issued; 6,379,323 and 6,423,630 shares outstanding	86,886,000	86,617,000
Retained earnings	69,578,000	65,063,000
Accumulated other comprehensive income	4,284,000	1,842,000
Treasury stock, at cost; 929,362 and 871,162 shares	(16,938,000)	(15,747,000)
TOTAL STOCKHOLDERS' EQUITY	143,810,000	137,775,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,391,979,000	1,182,475,000
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Loans:
Loans	103,121,000	102,386,000
Less: allowance for loan and lease losses	1,342,000	801,000
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Loans:
Loans	309,424,000	302,180,000
Less: allowance for loan and lease losses	6,817,000	3,382,000
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Loans:
Loans	39,562,000	62,028,000
Less: allowance for loan and lease losses	461,000	340,000
Residential Portfolio Segment [Member]
Loans:
Loans	233,995,000	234,798,000
Less: allowance for loan and lease losses	1,683,000	726,000
Commercial And Industrial [Member]
Loans:
Loans	232,044,000	89,527,000
Less: allowance for loan and lease losses	1,353,000	456,000
Home Equity Lines of Credit [Member]
Loans:
Loans	112,543,000	112,248,000
Less: allowance for loan and lease losses	1,405,000	932,000
Construction and Other [Member]
Loans:
Loans	63,573,000	66,680,000
Less: allowance for loan and lease losses	378,000	103,000
Consumer Portfolio Segment [Member]
Loans:
Loans	9,823,000	14,411,000
Less: allowance for loan and lease losses	$ 20,000	$ 28,000

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parentheticals) - $ / shares $ / shares in Thousands	Dec. 31, 2020	Dec. 31, 2019
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)	7,308,685	7,294,792
Common stock, shares outstanding (in shares)	6,379,323	6,423,630
Treasury stock, shares (in shares)	929,362	871,162

Consolidated Statement of Incom

Consolidated Statement of Income - USD ($)		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
INTEREST AND DIVIDEND INCOME
Interest and fees on loans		$ 49,003,000	$ 50,390,000
Interest-earning deposits in other institutions		118,000	673,000
Federal funds sold		22,000	78,000
Investment securities:
Taxable interest		909,000	796,000
Tax-exempt interest		2,472,000	2,392,000
Dividends on stock		114,000	196,000
Total interest and dividend income		52,638,000	54,525,000
INTEREST EXPENSE
Deposits		8,962,000	12,409,000
Short-term borrowings		79,000	368,000
Other borrowings		209,000	363,000
Total interest expense		9,250,000	13,140,000
NET INTEREST INCOME		43,388,000	41,385,000
Provision for loan losses		9,840,000	890,000
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES		33,548,000	40,495,000
NONINTEREST INCOME
Investment securities gains on sale, net	[1]	0	194,000
(Loss) gain on equity securities	[1]	(101,000)	94,000
Earnings on bank-owned life insurance	[1]	427,000	431,000
Gain on sale of loans	[1]	1,487,000	433,000
Total noninterest income		5,990,000	4,841,000
NONINTEREST EXPENSE
Salaries and employee benefits		15,835,000	16,783,000
Occupancy expense		2,158,000	2,164,000
Equipment expense		1,308,000	1,040,000
Data processing costs		2,650,000	2,208,000
Ohio state franchise tax		1,082,000	1,044,000
Federal deposit insurance expense		423,000	230,000
Professional fees		1,359,000	1,683,000
Net gain on other real estate owned		(172,000)	(125,000)
Advertising expense		698,000	733,000
Software amortization expense		351,000	638,000
Core deposit intangible amortization		332,000	341,000
Other expense		3,764,000	3,294,000
Total noninterest expense		29,788,000	30,033,000
Income before income taxes		9,750,000	15,303,000
Income taxes		1,401,000	2,592,000
NET INCOME		$ 8,349,000	$ 12,711,000
EARNINGS PER SHARE
Basic (in dollars per share)		$ 1.31	$ 1.96
Diluted (in dollars per share)		$ 1.30	$ 1.95
Deposit Account [Member]
NONINTEREST INCOME
Noninterest income revenue		$ 2,539,000	$ 2,186,000
Financial Service, Other [Member]
NONINTEREST INCOME
Noninterest income revenue		$ 1,638,000	$ 1,503,000
[1]	Not within scope of ASC 606

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Net income	$ 8,349,000	$ 12,711,000
Other comprehensive income:
Net unrealized holding gain on available- for-sale investment securities	3,091,000	2,720,000
Tax effect	(649,000)	(571,000)
Reclassification adjustment for investment securities gains included in net income	0	(194,000)
Tax effect	0	41,000
Total other comprehensive income	2,442,000	1,996,000
Comprehensive income	$ 10,791,000	$ 14,707,000

Consolidated Statement of Chang

Consolidated Statement of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Balance	$ 85,925	$ 56,037	$ (154)	$ (13,518)	$ 128,290
Balance (in shares) at Dec. 31, 2018	7,260,994
Balance at Dec. 31, 2018	$ 85,925	56,037	(154)	(13,518)	128,290
Net income		12,711			12,711
Other comprehensive income			1,996		1,996
Dividend reinvestment and purchase plan (in shares)	17,866
Dividend reinvestment and purchase plan	$ 372				$ 372
Stock options exercised (in shares)	400				200
Stock options exercised	$ 4				$ 4
Stock-based compensation, net (in shares)	15,532
Stock-based compensation, net	$ 316				316
Treasury shares acquired				(2,229)	(2,229)
Cash dividends		(3,685)			$ (3,685)
Balance (in shares) at Dec. 31, 2019	7,294,792				6,423,630
Balance	$ 85,925	56,037	(154)	(13,518)	$ 128,290
Balance	86,617	65,063	1,842	(15,747)	137,775
Balance at Dec. 31, 2019	$ 86,617	65,063	1,842	(15,747)	137,775
Net income		8,349			8,349
Other comprehensive income			2,442		$ 2,442
Stock options exercised (in shares)	1,350				2,350
Stock options exercised	$ 12				$ 12
Stock-based compensation, net (in shares)	12,543
Stock-based compensation, net	$ 257				257
Treasury shares acquired				(1,191)	(1,191)
Cash dividends		(3,834)			$ (3,834)
Balance (in shares) at Dec. 31, 2020	7,308,685				6,379,323
Balance	$ 86,617	65,063	1,842	(15,747)	$ 137,775
Balance	$ 86,886	$ 69,578	$ 4,284	$ (16,938)	$ 143,810

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Stockholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Retained Earnings [Member]
Cash dividends per share (in dollars per share)		$ 0.57
Treasury acquired, shares (in shares)	58,200	98,832
Cash dividends per share (in dollars per share)	$ 0.60

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($)		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
OPERATING ACTIVITIES
Net income		$ 8,349,000	$ 12,711,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses		9,840,000	890,000
Investment securities gains on sale, net	[1]	0	(194,000)
Loss (gain) on equity securities	[1]	101,000	(94,000)
Depreciation and amortization of premises and equipment, net		1,342,000	1,039,000
Software amortization expense		351,000	638,000
Financing lease amortization expense		286,000	360,000
Gain on sale of premises and equipment		(27,000)	0
Amortization of premium and discount on investment securities, net		365,000	259,000
Accretion of deferred loan fees, net		(2,790,000)	(753,000)
Amortization of core deposit intangibles		332,000	341,000
Stock-based compensation (income) expense, net		144,000	644,000
Origination of loans held for sale		(42,487,000)	(19,845,000)
Proceeds from sale of loans		44,316,000	19,655,000
Gain on sale of loans		(1,487,000)	(433,000)
Earnings on bank-owned life insurance	[1]	(427,000)	(431,000)
Deferred income tax		(1,348,000)	327,000
Gain on other real estate owned		(253,000)	(123,000)
(Increase) decrease in accrued interest receivable		(1,739,000)	162,000
(Decrease) increase in accrued interest payable		(337,000)	173,000
Other, net		551,000	(1,867,000)
Net cash provided by operating activities		15,082,000	13,459,000
INVESTING ACTIVITIES
Proceeds from repayments and maturities		18,170,000	17,687,000
Proceeds from sale of securities		0	12,324,000
Purchases		(24,071,000)	(34,961,000)
(Increase) decrease in loans, net		(127,874,000)	6,932,000
Proceeds from the sale of other real estate owned		709,000	360,000
Net purchase of premises and equipment		(1,077,000)	(1,897,000)
Proceeds from the disposal of premises and equipment		27,000	0
Purchase of restricted stock		(1,600,000)	(169,000)
Redemption of restricted stock		391,000	0
Net cash (used in) provided by investing activities		(135,325,000)	276,000
FINANCING ACTIVITIES
Net increase in deposits		204,357,000	4,776,000
Decrease in short-term borrowings, net		(5,075,000)	(85,323,000)
Proceeds from other borrowings		3,952,000	0
Repayment of other borrowings		(674,000)	(426,000)
Restricted stock cash portion		0	(44,000)
Stock options exercised		12,000	4,000
Proceeds from dividend reinvestment and purchase plan		0	372,000
Repurchase of treasury shares		(1,191,000)	(2,229,000)
Cash dividends		(3,834,000)	(3,685,000)
Net cash provided by (used in) financing activities		197,547,000	(86,555,000)
Increase (decrease) in cash and cash equivalents		77,304,000	(72,820,000)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR		35,113,000	107,933,000
CASH AND CASH EQUIVALENTS AT END OF YEAR		112,417,000	35,113,000
SUPPLEMENTAL INFORMATION
Interest on deposits and borrowings		9,587,000	12,967,000
Income taxes		2,177,000	2,705,000
Operating lease assets added to other, net		0	(1,071,000)
Operating lease liabilities added to other, net		0	1,071,000
Transfers from loans to other real estate owned		7,688,000	122,000
Finance lease assets added to premises and equipment		(1,010,000)	(4,373,000)
Finance lease liabilities added to borrowed funds		$ 1,010,000	$ 4,373,000
[1]	Not within scope of ASC 606

Note 1 - Summary of Significant

Note 1 - Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Significant Accounting Policies [Text Block]	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES A summary of the significant accounting and reporting policies applied in the presentation of the accompanying financial statements follows: Nature of Operations and Basis of Presentation Middlefield Banc Corp. (the “Company”) is an Ohio corporation organized to become the holding company of The Middlefield Banking Company (“MBC”). MBC is a state-chartered bank located in Ohio, whose consolidated financial statements also include the accounts of MBC’s subsidiary, Middlefield Investments, Inc. (“MI”), established March 13, 2019. October 23, 2009, The consolidated financial statements of the Company include its wholly owned subsidiaries, MBC and EMORECO, Inc. Significant intercompany items have been eliminated in preparing the consolidated financial statements. The financial statements have been prepared in conformity with U.S. Generally Accepted Accounting Principles. In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the balance sheet date and revenues and expenses for the period. Actual results could differ from those estimates. Investment and Equity Securities 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, which are computed using a level yield method and recognized as adjustments of interest income. 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 2020 2019, Securities are evaluated on at least a quarterly basis 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 one not Restricted Stock Common stock of the Federal Home Loan Bank (“FHLB”) represents ownership in an institution that is wholly owned by other financial institutions. This equity security is accounted for at cost and classified with other assets. The FHLB of Cincinnati has reported profits for 2020 2019, not December 31, 2020 2019. Mortgage Banking Activities The Bank sells mortgage loans on a servicing retained basis. Servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. The Bank measures servicing assets using the amortization method. Loan servicing rights are amortized in proportion to and over the period of estimated net future servicing revenue. The expected period of the estimated net servicing income is based in part on the expected prepayment of the underlying mortgages. The unamortized balance of mortgage servicing rights is included in accrued interest and other assets on the Consolidated Balance Sheet. Servicing fee income is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of outstanding principal and are recorded as income when earned. The amortization of mortgage servicing rights is netted against loan servicing fee income. Late fees and ancillary fees related to loan servicing are not December 31, 2020 2019, Loans 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 loan and lease losses. Interest income is recognized, when earned, 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 collection of interest is doubtful. Interest received on nonaccrual loans is recorded as income or applied against principal according to management’s judgment as to the collectability of such principal. Loan origination fees and certain direct loan origination costs are deferred and the net amount amortized as an adjustment of the related loan’s yield. These amounts are amortized over the contractual life of the related loans. Allowance for Loan and Lease Losses The allowance for loan and lease losses represents the amount which 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 which is 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, past 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 significant change in the near term. A loan is considered impaired when it is probable the borrower will not 89 not not first Mortgage loans secured by one four Loans Acquired Loans acquired, including loans that have evidence of deterioration of credit quality since origination and for which it is probable, at acquisition, that the Company will be unable to collect all contractually required payments receivable, are initially recorded at fair value (as determined by the present value of expected future cash flows) with no not For purchased loans acquired that are not Premises and Equipment Land is carried at cost. Premises and equipment are stated at cost net of accumulated depreciation. Depreciation is computed on the straight-line method over the estimated useful lives of the assets, which range from 3 to 20 years for furniture, fixtures, and equipment and 3 to 40 years for buildings and leasehold improvements. Expenditures for maintenance and repairs are charged against income as incurred. Costs of major additions and improvements are capitalized. Leases The Company has operating and financing leases for several branch locations and office space. Generally, the underlying lease agreements do not may e.g. e.g. may one Most leases include one As most of our leases do not Goodwill The Company accounts for goodwill using a two Intangible Assets Intangible assets include core deposit intangibles, which are a measure of the value of consumer demand and savings deposits acquired in business combinations accounted for as purchases. The core deposit intangibles are being amortized to their estimated residual values over their expected useful lives, commonly of ten Bank-Owned Life Insurance (“BOLI”) The Company owns insurance on the lives of a certain group of key employees. The policies were purchased to help offset the increase in the costs of various fringe benefit plans including healthcare. The cash surrender value of these policies is included as an asset on the Consolidated Balance Sheet and any increases in the cash surrender value are recorded as noninterest income on the Consolidated Statement of Income. In the event of the death of an insured individual under these policies, the Company would receive a death benefit, which would be recorded as tax-free noninterest income. Other Real Estate Owned ("OREO") Real estate properties acquired through foreclosure are initially recorded at fair value at the date of foreclosure, establishing a new cost basis. After foreclosure, management periodically performs valuations and the real estate is carried at the lower of cost or fair value less estimated cost to sell. Revenue and expenses from operations of the properties, gains or losses on sales and additions to the valuation allowance are included in operating results. Income Taxes The Company and its subsidiaries file a consolidated federal income tax return. Deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. Earnings Per Share The Company provides dual presentation of basic and diluted earnings per share. Basic earnings per share is calculated utilizing net income as reported in the numerator and average shares outstanding in the denominator. The computation of diluted earnings per share differs in that the dilutive effects of any stock options, warrants, and convertible securities are adjusted in the denominator. Earnings and dividends per share are restated for all stock splits and stock dividends through the date of issuance of the financial statements. Stock-Based Compensation The Company accounts for stock compensation based on the grant date fair value of all share-based payment awards that are expected to vest, including employee share options to be recognized as employee compensation expense over the requisite service period. Compensation cost is recognized for restricted stock issued to employees based on the fair value of these awards at the date of grant. The market price of the Company’s common shares at the date of grant is used to estimate the fair value of restricted stock and stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period, and is recorded in "Salaries and employee benefits" expense. (See Note 14 Cash Flow Information The Company has defined cash and cash equivalents as those amounts included in the Consolidated Balance Sheet captions as “Cash and due from banks” and “Federal funds sold” with original maturities of less than 90 Advertising Costs Advertising costs are expensed as incurred. Reclassification of Comparative Amounts Certain comparative amounts for prior years have been reclassified to conform to current-year presentations. Such reclassifications did not Recently Iss ued Accounting Pronouncements In June 2016, 2016 13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments first December 15, 2022, CECL Adoption 326, not may no In January 2017, 2017 04, Simplifying the Test for Goodwill Impairment 2 2, not December 15, 2022, not In November 2019, 2019 11, Codification Improvements to Topic 326, 326, not 2016 13 November 26, 2019, 2019 11 2016 13. 2016 13, 2019 11 December 15, 2019, not In December 2019, 2019 12, Income Taxes (Topic 740 not not December 15, 2020. December 15, 2021, December 15, 2022. In March 2020, 2020 03 , Codification Improvements to Financial Instruments. 2016. seven not 825, Financial Instruments 842 326. 2019 04 December 15, 2019, not 2016 01. 2016 13 not 2016 13. not 2016 13. 2016 13 December 15, 2019, In January 2020, 2020 04, Reference Rate Reform (Topic 848 March 2020 not not one December 31, 2022. In October 2020, 2020 08, Codification Improvements to Subtopic 310 20, 310 20 35 33. 2020 08 December 15, 2020. not 2020 08 December 15, 2021, December 15, 2022. not In January 2021, 2021 01, Reference Rate Reform (Topic 848 848. 2021 01 848. 2021 01 may March 12, 2020, not December 31, 2022, December 31, 2022, December 31, 2022,

Note 2 - Revenue Recognition

Note 2 - Revenue Recognition	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	2. REVENUE RECOGNITION In accordance with ASC 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 (losses) on sale of other real estate owned (“OREO”) not 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 years ended December 31, Noninterest Income 2020 2019 (Dollar amounts in thousands) Service charges on deposit accounts: Overdraft fees $ 665 $ 841 ATM banking fees 1,061 932 Service charges and other fees 813 413 Investment securities gains on sale, net (a) - 194 (Loss) gain on equity securities (a) (101 ) 94 Earnings on bank-owned life insurance (a) 427 431 Gain on sale of loans (a) 1,487 433 Revenue from investment services (b) 526 528 Other income 1,112 975 Total noninterest income $ 5,990 $ 4,841 Net gain on other real estate owned $ (253 ) $ (123 ) (a) Not 606 (b) From services offered by the Company through it's servicing partnership with LPL Financial

Note 3 - Earnings Per Share

Note 3 - Earnings Per Share	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Earnings Per Share [Text Block]	3. EARNINGS PER SHARE The Company provides 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 year ended December 31: 2020 2019 Weighted-average common shares issued 7,302,845 7,286,554 Average treasury stock shares (917,495 ) (816,146 ) Weighted-average common shares and common stock equivalents used to calculate basic earnings per share 6,385,350 6,470,408 Additional common stock equivalents (stock options and restricted stock) used to calculate diluted earnings per share 19,174 32,398 Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share 6,404,524 6,502,806 Options to purchase 12,150 shares of common stock at $8.78 per share were outstanding during the year ended December 31, 2020. Options to purchase 14,500 shares of common stock at $8.78 per share were outstanding during the year ended December 31, 2019. None 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 December 31, 2020, twelve December 31, 2020, December 31, 2019.

Note 4 - Investment and Equity

Note 4 - Investment and Equity Securities	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	4. INVESTMENT AND EQUITY SECURITIES The amortized cost, gross gains and losses and fair values of securities available for sale are as follows: December 31, 2020 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value Subordinated debt $ 21,050 $ 254 $ (7 ) $ 21,297 Obligations of states and political subdivisions: Taxable 500 2 - 502 Tax-exempt 73,157 4,643 - 77,800 Mortgage-backed securities in government-sponsored entities 14,230 536 (5 ) 14,761 Total $ 108,937 $ 5,435 $ (12 ) $ 114,360 December 31, 2019 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value Subordinated debt $ 4,000 $ 126 $ - $ 4,126 Obligations of states and political subdivisions: Taxable 500 1 - 501 Tax-exempt 80,436 2,065 (25 ) 82,476 Mortgage-backed securities in government-sponsored entities 18,465 274 (109 ) 18,630 Total $ 103,401 $ 2,466 $ (134 ) $ 105,733 Equity securities totaled $609,000 and $710,000 at December 31, 2020 2019, December 31, 2020 2019, The amortized cost and fair value of debt securities at December 31, 2020, may Amortized Fair (Dollar amounts in thousands) Cost Value Due in one year or less $ 1,556 $ 1,577 Due after one year through five years 1,701 1,738 Due after five years through ten years 28,767 29,236 Due after ten years 76,913 81,809 Total $ 108,937 $ 114,360 Investment securities with an approximate carrying value of $71.1 million and $55.6 million at December 31, 2020 2019, There were no December 31, 2020. December 31, 2019, 2020 2019 Proceeds from sales $ - $ 12,324 Gross realized gains - 227 Gross realized losses - (33 ) The tax expense related to the net realized gains above was $0 and $41,000 for the years ended December 31, 2020 2019, The following tables show 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. December 31, 2020 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 $ 4,243 $ (7 ) $ - $ - $ 4,243 $ (7 ) Mortgage-backed securities in government-sponsored entities 2,748 (5 ) - - 2,748 (5 ) Total $ 6,991 $ (12 ) $ - $ - $ 6,991 $ (12 ) December 31, 2019 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 Obligations of states and political subdivisions Tax-exempt $ 4,324 $ (25 ) $ - $ - $ 4,324 $ (25 ) Mortgage-backed securities in government-sponsored entities 1,409 (2 ) 8,223 (107 ) 9,632 (109 ) Total $ 5,733 $ (27 ) $ 8,223 $ (107 ) $ 13,956 $ (134 ) There were 10 securities that were considered temporarily impaired at December 31, 2020. On a quarterly basis, the Company performs an assessment to determine whether there have been any events or economic circumstances indicating that a security with an unrealized loss has suffered other-than-temporary impairment (“OTTI”). A debt security is considered impaired if the fair value is less than its amortized cost basis at the reporting date. The accounting literature requires the Company to assess whether the unrealized loss is other than temporary. For equity securities where the fair value has been significantly below cost for one not The Company has asserted that at December 31, 2020 2019, not not may not not Debt securities issued by U.S. government agencies, U.S. government-sponsored enterprises, and state and political subdivisions accounted for 81.4% of the total available-for-sale portfolio as of December 31, 2020, ● The length of time and the extent to which the fair value has been less than the amortized cost basis. ● Changes in the near-term prospects of the underlying collateral of a security such as changes in default rates, loss severity given default and significant changes in prepayment assumptions. ● The level of cash flows generated from the underlying collateral supporting the principal and interest payments of the debt securities. ● Any adverse change to the credit conditions and liquidity of the issuer, taking into consideration the latest information available about the overall financial condition of the issuer, credit ratings, recent legislation, and government actions affecting the issuer’s industry and actions taken by the issuer to deal with the present economic climate.

Note 5 - Loans and Related Allo

Note 5 - Loans and Related Allowance for Loan and Lease Losses	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	5. LOANS AND RELATED ALL OWANCE FOR LOAN AND LEASE LOSSES The Company’s primary business activity is with loan customers located within its local Northeastern Ohio trade area, eastern Geauga County, and contiguous counties to the north, east, and south. The Company also serves the central Ohio market with offices in Dublin, Sunbury, Powell, Plain City and Westerville, Ohio. The Northeastern Ohio trade area includes locations in Beachwood, Twinsburg, and Solon, Ohio. Commercial, residential, and consumer loans are granted. Although the Company has a diversified loan portfolio at December 31, 2020 2019, The following tables summarize the primary segments of the loan portfolio and the allowance for loan and lease losses (in thousands): December 31, 2020 Ending Loan Balance by Impairment Evaluation Individually Collectively Total Loans Loans: Commercial real estate: Owner occupied $ 1,565 $ 101,556 $ 103,121 Non-owner occupied 4,123 305,301 309,424 Multifamily - 39,562 39,562 Residential real estate 1,319 232,676 233,995 Commercial and industrial 834 231,210 232,044 Home equity lines of credit 246 112,297 112,543 Construction and other - 63,573 63,573 Consumer installment - 9,823 9,823 Total $ 8,087 $ 1,095,998 $ 1,104,085 December 31, 2019 Ending Loan Balance by Impairment Evaluation Individually Collectively Total Loans Loans: Commercial real estate: Owner occupied $ 3,474 $ 98,912 $ 102,386 Non-owner occupied 7,084 295,096 302,180 Multifamily - 62,028 62,028 Residential real estate 1,278 233,520 234,798 Commercial and industrial 882 88,645 89,527 Home equity lines of credit 351 111,897 112,248 Construction and other - 66,680 66,680 Consumer installment 1 14,410 14,411 Total $ 13,070 $ 971,188 $ 984,258 The commercial and industrial loan portfolio as of December 31, 2020 20 The amounts above include net deferred loan origination fees of $4.4 million and $1.3 million at December 31, 2020 December 31, 2019, December 31, 2020 December 31, 2020 Ending Allowance Balance by Impairment Evaluation Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Allocation Loans: Commercial real estate: Owner occupied $ 10 $ 1,332 $ 1,342 Non-owner occupied 371 6,446 6,817 Multifamily - 461 461 Residential real estate 20 1,663 1,683 Commercial and industrial 48 1,305 1,353 Home equity lines of credit 41 1,364 1,405 Construction and other - 378 378 Consumer installment - 20 20 Total $ 490 $ 12,969 $ 13,459 December 31, 2019 Ending Allowance Balance by Impairment Evaluation Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Allocation Loans: Commercial real estate: Owner occupied $ 45 $ 756 $ 801 Non-owner occupied 582 2,800 3,382 Multifamily - 340 340 Residential real estate 28 698 726 Commercial and industrial 3 453 456 Home equity lines of credit 2 930 932 Construction and other - 103 103 Consumer installment - 28 28 Total $ 660 $ 6,108 $ 6,768 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 Real Estate (“RRE”), Commercial and Industrial (“C&I”), Home Equity Lines of Credit (“HELOC”), Construction and Other (“Construction”), and Consumer Installment Loans. Although PPP loans are included with C&I loans, the nature of PPP loans differs considerably from the rest of the category. Loans funded through the PPP program are fully guaranteed by the U.S. government. This guarantee exists at the inception of the loans and throughout the lives of the loans and was not Management evaluates individual loans in all of the commercial segments for possible impairment based on guidance established by the Board of Directors. Loans are considered to be impaired when, based on current information and events, it is probable that the Company will 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 in relation to the principal and interest owed. The Company does not Once the determination has been made that a loan is impaired, 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 three not The following tables present impaired loans by class, segregated by those for which a specific allowance was required and those for which a specific allowance was not December 31, 2020 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial real estate: Owner occupied $ 1,118 $ 1,142 $ - Non-owner occupied 801 801 - Residential real estate 941 1,013 - Commercial and industrial 561 1,056 - Home equity lines of credit 80 92 - Total $ 3,501 $ 4,104 $ - With an allowance recorded: Commercial real estate: Owner occupied $ 447 $ 447 $ 10 Non-owner occupied 3,322 3,596 371 Residential real estate 378 378 20 Commercial and industrial 273 276 48 Home equity lines of credit 166 166 41 Total $ 4,586 $ 4,863 $ 490 Total: Commercial real estate: Owner occupied $ 1,565 $ 1,589 $ 10 Non-owner occupied 4,123 4,397 371 Residential real estate 1,319 1,391 20 Commercial and industrial 834 1,332 48 Home equity lines of credit 246 258 41 Total $ 8,087 $ 8,967 $ 490 December 31, 2019 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial real estate: Owner occupied $ 1,772 $ 1,772 $ - Non-owner occupied 3,845 3,845 - Residential real estate 759 829 - Commercial and industrial 747 1,524 - Home equity lines of credit 220 228 - Consumer installment 1 1 - Total $ 7,344 $ 8,199 $ - With an allowance recorded: Commercial real estate: Owner occupied $ 1,702 $ 1,713 $ 45 Non-owner occupied 3,239 3,239 582 Residential real estate 519 569 28 Commercial and industrial 135 135 3 Home equity lines of credit 131 131 2 Total $ 5,726 $ 5,787 $ 660 Total: Commercial real estate: Owner occupied $ 3,474 $ 3,485 $ 45 Non-owner occupied 7,084 7,084 582 Residential real estate 1,278 1,398 28 Commercial and industrial 882 1,659 3 Home equity lines of credit 351 359 2 Consumer installment 1 1 - Total $ 13,070 $ 13,986 $ 660 The tables above include troubled debt restructuring totaling $2.9 million and $3.6 million as of December 31, 2020 2019, December 31, 2020 December 31, 2019, The following table presents the average balance and interest income by class, recognized on impaired loans (in thousands): As of December 31, 2020 As of December 31, 2019 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Commercial real estate: Owner occupied $ 2,851 $ 72 $ 3,808 $ 176 Non-owner occupied 8,815 184 6,558 199 Residential real estate 1,247 52 1,626 49 Commercial and industrial 1,076 42 1,770 141 Home equity lines of credit 308 8 177 2 Construction and other - - 648 - Consumer installment - - 2 - Total $ 14,297 $ 358 $ 14,589 $ 567 Troubled Debt Restructuring (“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. See Note 20 19 Additionally, on April 7, 2020, 19 not 19, 30 19 not The following tables summarize troubled debt restructurings that did not December 31, 2020 Number of Contracts Pre-Modification Post-Modification Troubled Debt Restructurings Term Modification Other Total Outstanding Recorded Investment Outstanding Recorded Investment Commercial and industrial 2 - 2 $ 25 $ 24 Residential real estate 1 - 1 114 114 $ 139 $ 138 December 31, 2019 Number of Contracts Pre-Modification Post-Modification Troubled Debt Restructurings Term Modification Other Total Outstanding Recorded Investment Outstanding Recorded Investment Commercial and industrial 3 - 3 $ 488 $ 490 Residential real estate - 2 2 123 178 Home equity lines of credit 4 - 4 171 176 $ 782 $ 844 One loan with a book balance of $36,000 was restructured in 2019 December 31, 2019. December 31, 2020 2019. 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 bankruptcy, repossession, or death, occurs to raise awareness of a possible credit event. 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 $500,000 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 commercial relationships greater than $250,000 and/or criticized relationships greater than $125,000. Detailed reviews, including plans for resolution, are performed on loans classified as Substandard on 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 tables present the classes of the loan portfolio summarized by the aggregate Pass rating and the criticized categories of Special Mention, Substandard, and Doubtful within the internal risk rating system (in thousands): Special Total December 31, 2020 Pass Mention Substandard Doubtful Loans Commercial real estate: Owner occupied $ 93,939 $ 7,084 $ 2,098 $ - $ 103,121 Non-owner occupied 258,974 983 49,467 - 309,424 Multifamily 39,562 - - - 39,562 Residential real estate 230,944 265 2,786 - 233,995 Commercial and industrial 227,765 1,800 2,479 - 232,044 Home equity lines of credit 111,208 - 1,335 - 112,543 Construction and other 58,082 - 5,491 - 63,573 Consumer installment 9,816 - 7 - 9,823 Total $ 1,030,290 $ 10,132 $ 63,663 $ - $ 1,104,085 Special Total December 31, 2019 Pass Mention Substandard Doubtful Loans Commercial real estate: Owner occupied $ 95,518 $ 3,951 $ 2,917 $ - $ 102,386 Non-owner occupied 292,191 3,038 6,951 - 302,180 Multifamily 62,028 - - - 62,028 Residential real estate 231,633 420 2,745 - 234,798 Commercial and industrial 84,136 3,619 1,772 - 89,527 Home equity lines of credit 111,354 - 894 - 112,248 Construction and other 66,680 - - - 66,680 Consumer installment 14,399 - 12 - 14,411 Total $ 957,939 $ 11,028 $ 15,291 $ - $ 984,258 The increase in substandard CRE NOO loans from the prior year was mostly due to pandemic related deferrals. 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 tables present the classes of the loan portfolio summarized by the aging categories of loans and nonaccrual loans (in thousands): 30-59 Days 60-89 Days 90 Days+ Total Total December 31, 2020 Current Past Due Past Due Past Due Past Due Loans Commercial real estate: Owner occupied $ 102,587 $ 418 $ - $ 116 $ 534 $ 103,121 Non-owner occupied 305,613 1,844 1,373 594 3,811 309,424 Multifamily 39,562 - - - - 39,562 Residential real estate 230,996 2,364 95 540 2,999 233,995 Commercial and industrial 231,534 260 219 31 510 232,044 Home equity lines of credit 112,325 120 - 98 218 112,543 Construction and other 63,529 44 - - 44 63,573 Consumer installment 9,424 71 108 220 399 9,823 Total $ 1,095,570 $ 5,121 $ 1,795 $ 1,599 $ 8,515 $ 1,104,085 30-59 Days 60-89 Days 90 Days+ Total Total December 31, 2019 Current Past Due Past Due Past Due Past Due Loans Commercial real estate: Owner occupied $ 101,264 $ 64 $ - $ 1,058 $ 1,122 $ 102,386 Non-owner occupied 298,941 - - 3,239 3,239 302,180 Multifamily 62,028 - - - - 62,028 Residential real estate 232,518 1,439 34 807 2,280 234,798 Commercial and industrial 88,965 190 66 306 562 89,527 Home equity lines of credit 111,792 274 29 153 456 112,248 Construction and other 66,680 - - - - 66,680 Consumer installment 13,378 622 216 195 1,033 14,411 Total $ 975,566 $ 2,589 $ 345 $ 5,758 $ 8,692 $ 984,258 The following tables present the recorded investment in nonaccrual loans and loans past due over 89 December 31, 2020 Nonaccrual 90+ Days Past Due and Accruing Commercial real estate: Owner occupied $ 458 $ - Non-owner occupied 3,758 - Residential real estate 2,487 - Commercial and industrial 509 - Home equity lines of credit 422 - Consumer installment 224 - Total $ 7,858 $ - December 31, 2019 Nonaccrual 90+ Days Past Due and Accruing Commercial real estate: Owner occupied $ 1,162 $ - Non-owner occupied 3,289 - Residential real estate 2,576 - Commercial and industrial 946 - Home equity lines of credit 709 - Consumer installment 197 - Total $ 8,879 $ - Interest income that would have been recorded had these loans not 2020 2019. An allowance for loan and lease losses (“ALLL”) is maintained to absorb losses from the loan portfolio. The ALLL is based on management’s continuing evaluation of the risk characteristics and credit quality of the loan portfolio, assessment of current economic conditions, diversification and size of the portfolio, adequacy of collateral, past and anticipated loss experience, and the amount of nonperforming loans. The Company’s methodology for determining the ALLL is based on the requirements of ASC Section 310 10 35 450 20 two may Loans that are collectively evaluated for impairment are analyzed, with general allowances being made as appropriate. For general allowances, historical loss trends are used in the estimation of losses in the current portfolio. These historical loss amounts are modified by other qualitative factors. The classes described above, which are based on the purpose code assigned to each loan, provide the starting point for the ALLL analysis. Management tracks the historical net charge-off activity at the purpose code level. A historical charge-off factor is calculated utilizing the last twelve Management has identified a number of additional qualitative factors which it uses to supplement the historical charge-off factor, because these factors are likely to cause estimated credit losses associated with the existing loan pools to differ from historical loss experience. The additional factors that are evaluated quarterly and updated using information obtained from internal, regulatory, and governmental sources are: 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. Management reviews the loan portfolio on a quarterly basis using a defined, consistently applied process in order to make appropriate and timely adjustments to the ALLL. When information confirms all or part of specific loans to be uncollectible, these amounts are promptly charged off against the ALLL. The following tables summarize the ALLL within the primary segments of the loan portfolio and the activity within those segments (in thousands): Allowance for Loan and Lease Losses Balance Balance December 31, 2019 Charge-offs Recoveries Provision December 31, 2020 Loans: Commercial real estate: Owner occupied $ 801 $ (50 ) $ 17 $ 574 $ 1,342 Non-owner occupied 3,382 (3,022 ) 74 6,383 6,817 Multifamily 340 - - 121 461 Residential real estate 726 (62 ) 42 977 1,683 Commercial and industrial 456 (245 ) 294 848 1,353 Home equity lines of credit 932 (55 ) 84 444 1,405 Construction and other 103 - 157 118 378 Consumer installment 28 (405 ) 22 375 20 Total $ 6,768 $ (3,839 ) $ 690 $ 9,840 $ 13,459 Allowance for Loan and Lease Losses Balance Balance December 31, 2018 Charge-offs Recoveries Provision December 31, 2019 Loans: Commercial real estate: Owner occupied $ 1,315 $ (32 ) $ 5 $ (487 ) $ 801 Non-owner occupied 2,862 - 12 508 3,382 Multifamily 474 - - (134 ) 340 Residential real estate 761 (361 ) 46 280 726 Commercial and industrial 969 (519 ) 82 (76 ) 456 Home equity lines of credit 820 (162 ) 32 242 932 Construction and other 100 - 74 (71 ) 103 Consumer installment 127 (735 ) 8 628 28 Total $ 7,428 $ (1,809 ) $ 259 $ 890 $ 6,768 The provision fluctuations during the year ended December 31, 2020 ● commercial real estate loans are due to large charge offs from two ● commercial and industrial loans are due to several small charge-offs that total $245,000, along with an allocation for the PPP loans in the amount of $464,000, along with additional provisions for unexpected losses resulting from the current economic environment. ● residential real estate loans are due to several small charge-offs totaling $62,000 and additional provisions for unexpected losses resulting from the current economic environment. ● consumer installment loans are due to charge-offs in the student loan portfolio totaling $383,000. The provision fluctuations during the year ended December 31, 2019 ● commercial and industrial loans are due to the charge-offs of two 2018. ● residential real estate loans are due to the charge-off of two ● commercial real estate loans are due to a small charge-off and a declining portfolio balance. ● consumer installment loans are due to charge-offs in the student loan portfolio totaling $566,000.

Note 6 - Premises and Equipment

Note 6 - Premises and Equipment	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	6. PREMISES AND EQUIPMENT Major classifications of premises and equipment at December 31: (Dollar amounts in thousands) 2020 2019 Land and land improvements $ 2,963 $ 2,920 Building and leasehold improvements 16,239 15,836 Furniture, fixtures, and equipment 9,395 9,357 Financing right-of-use assets 4,737 4,012 Total premises and equipment 33,334 32,125 Less accumulated depreciation and amortization 15,001 14,251 Total premises and equipment, net $ 18,333 $ 17,874 Depreciation expense charged to operations was $1.3 million in 2020 2019.

Note 7 - Goodwill and Intangibl

Note 7 - Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	7. GOODWILL AND INTANGIBLE ASSETS Goodwill totaled $15.1 million for both years ended December 31, 2020, 2019. December 31, 2020, 2019, December 31, 2020, 2019. 2020 2019, Core deposit intangible assets are amortized to their estimated residual values over their expected useful lives, commonly of ten December 31, 2020 2021 $ 321 2022 309 2023 296 2024 281 2025 264 Thereafter 253 Total $ 1,724 Activity for mortgage servicing rights (“MSR”s) follows: (Dollar amounts in thousands) 2020 2019 Beginning of year $ 390 $ 357 Additions 276 67 Amortized to expense (190 ) (34 ) End of year $ 476 $ 390

Note 8 - Accrued Interest Recei

Note 8 - Accrued Interest Receivable and Other Assets	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Other Assets Disclosure [Text Block]	8. ACCRUED INTEREST RECEIVABLE AND OTHER ASSETS The components of accrued interest receivable and other assets at the years ended December 31: (Dollar amounts in thousands) 2020 2019 Restricted stock $ 5,057 $ 3,848 Accrued interest receivable on investment securities 854 753 Accrued interest receivable on loans 4,356 2,718 Deferred tax asset, net 1,073 374 Operating right-of-use assets 742 903 Other 1,554 1,946 Total $ 13,636 $ 10,542 Deposits to related parties amounted to $38.6 million as of December 31, 2020.

Note 9 - Deposits

Note 9 - Deposits	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Deposit Liabilities Disclosures [Text Block]	9. DEPOSITS Time deposits that meet or exceed the FDIC Insurance limit of $250,000 December 31, 2020 2019, Scheduled maturities of time deposits as of December 31, 2020 (Dollar amounts in thousands) 2021 $ 216,732 2022 38,746 2023 20,419 2024 12,854 2025 6,999 Total $ 295,750

Note 10 - Short-term Borrowings

Note 10 - Short-term Borrowings	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Short-term Debt [Text Block]	10. SHORT-TERM BORROWINGS For the year ended December 31, (Dollar amounts in thousands) 2020 2019 2018 Balance at year-end - $ 5,075 $ 90,398 Average balance outstanding 22,637 14,808 42,231 Maximum month-end balance 62,329 92,000 101,857 Weighted-average rate at year-end N/A 1.66 % 2.53 % Weighted-average rate during the year 0.35 % 2.49 % 1.99 % Average balances outstanding during the year represent daily average balances, and average interest rates represent interest expense divided by the related average balance. The Company maintains a $6.0 million line of credit at an adjustable rate, currently 3.50%, a $10.0 million line of credit at an adjustable rate, currently at 3.40%, and a $4.0 million line of credit at an adjustable rate, currently 3.64%. At December 31, 2020, 2019, December 31, 2020 2019,

Note 11 - Other Borrowings

Note 11 - Other Borrowings	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Other Borrowings [Text Block]	11. OTHER BORROWINGS Other borrowings consist of advances from the FHLB and subordinated debt as follows: Weighted- Stated interest (Dollar amounts in thousands) Maturity range average rate range Description from to interest rate from to 2020 2019 Fixed-rate amortizing (a) 07/01/25 10/01/28 4.06 % 4.02 % 4.47 % $ - $ 404 Finance lease liabilities 09/30/34 06/01/40 2.64 % 1.89 % 3.51 % 4,839 4,098 PPPLF (b) 04/13/22 04/13/22 0.35 % 0.35 % 0.35 % 3,951 - Junior subordinated debt 12/21/37 12/21/37 2.56 % 1.88 % 3.61 % 8,248 8,248 Total $ 17,038 $ 12,750 (a) December 31, 2020. December 31, 2019. (b) The scheduled maturities of other borrowings are as follows: (Dollar amounts in thousands) Weighted- Year Ending December 31, Amount Average Rate 2021 $ 257 2.64 % 2022 4,216 0.68 % 2023 272 2.64 % 2024 279 2.64 % 2025 286 2.64 % Beyond 2025 11,728 2.01 % Total $ 17,038 1.62 % Under the terms of a blanket agreement, FHLB borrowings are secured by certain qualifying assets of the Company which consist principally of first December 31, 2020. The Company formed a special purpose entity (“Entity”) to issue $8.0 million of floating rate, obligated mandatorily redeemable securities, and $248,000 in common securities as part of a pooled offering. The rate adjusts quarterly, equal to LIBOR plus 1.67%. The Entity may December 2006 December 2037, On January 1, 2019, 2016 02 15 In April, 2020, one six 0.35%. No September 30, 2020. December 31, 2020,

Note 12 - Accrued Interest Paya

Note 12 - Accrued Interest Payable and Other Liabilities	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Other Liabilities Disclosure [Text Block]	12. ACCRUED INTEREST PAYABLE AND OTHER LIABILITIES The components of accrued interest payable and other liabilities are as follows at December 31: 2020 2019 (Dollar amounts in thousands) Accrued interest payable $ 580 $ 917 Accrued directors' benefits 1,587 1,470 Accrued salary and benefits expense 1,410 1,451 Operating lease liabilities 746 906 Other 1,608 1,288 Total $ 5,931 $ 6,032

Note 13 - Income Taxes

Note 13 - Income Taxes	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Income Tax Disclosure [Text Block]	13. INCOME TAXES The provision for federal income taxes for the years ended December 31, (Dollar amounts in thousands) 2020 2019 Current payable $ 2,749 $ 2,265 Deferred (1,348 ) 327 Total provision $ 1,401 $ 2,592 The tax effects of deductible and taxable temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities are as follows at December 31: (Dollar amounts in thousands) 2020 2019 Deferred tax assets: Allowance for loan and lease losses $ 2,826 $ 1,288 Supplemental retirement plan 482 469 Investment security basis adjustment 18 18 Nonaccrual interest income 355 297 Accrued compensation 244 244 Deferred origination fees, net - 30 Lease liability 1,173 1,051 Gross deferred tax assets 5,098 3,397 Deferred tax liabilities: Premises and equipment 709 583 Net unrealized gain on AFS securities 1,139 490 Net unrealized gain on equity securities 41 62 FHLB stock dividends 139 139 Intangibles 414 378 Mortgage servicing rights 100 82 Deferred origination fees, net 50 - Acquisition fair value adjustments 278 253 Right of use assets 1,151 1,032 Other 4 4 Gross deferred tax liabilities 4,025 3,023 Net deferred tax assets $ 1,073 $ 374 No valuation allowance was established at December 31, 2020 2019, The reconciliation between the federal statutory rate and the Company’s effective consolidated income tax rate for the years ended December 31, (Dollar amounts in thousands) 2020 2019 % of % of Pretax Pretax Amount Income Amount Income Provision at statutory rate $ 2,047 21.0 % $ 3,214 21.0 % Tax-exempt income (669 ) (6.9 )% (647 ) (4.2 )% Nondeductible interest expense 16 0.2 % 32 0.2 % Stock-based compensation (4 ) - % - - % Other 11 0.1 % (7 ) (0.1 )% Actual tax expense and effective rate $ 1,401 14.4 % $ 2,592 16.9 % ASC 740 10 not not 50 not first no not first no At December 31, 2020 December 31, 2019, no 740 10 not 12 The Company and the Bank are subject to U.S. federal income tax as well as an income tax in the states of Ohio and Florida, and the Bank is subject to a capital-based franchise tax in the state of Ohio. The Company and the Bank are no December 31, 2017.

Note 14 - Employee Benefits

Note 14 - Employee Benefits	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Compensation and Employee Benefit Plans [Text Block]	14. EMPLOYEE BENEFITS Employee Retirement Plan The Bank maintains section 401 21 December 31, 2020 2019. six second 2020 2019 Executive Deferred Compensation Plan s The Company maintains executive deferred compensation plans to provide post-retirement payments to members of senior management. The plan agreements are noncontributory, defined contribution arrangements that provide supplemental retirement income benefits to several officers, with contributions made solely by the Bank. Accrued executive deferred compensation amounted to $1.7 million and $1.5 million as of December 31, 2020 2019, 2020 2019, Stock Option and Restricted Stock Plan In 2007, 2007 “2007 2007 ten 2007 2017, 2007 not In 2017, 2017 “2017 2017 May 10, 2017. 2017 ten not 2017 December 31, 2020. The following table presents share data related to the outstanding options: Shares Weighted- average Exercise Price Per Share Outstanding, January 1, 2020 14,500 $ 8.78 Exercised (2,350 ) 8.78 Outstanding, December 31, 2020 12,150 $ 8.78 Exercisable, December 31, 2020 12,150 $ 8.78 The total intrinsic value of outstanding in-the-money exercisable stock options was $166,759 and $251,068 at December 31, 2020 2019, No options were granted for the years ended December 31, 2020 2019. For the years ended December 31, 2020 2019, December 31, 2020, For the years ended December 31, 2020 2019, December 31, 2020 2019, During 2020 2019, 2020 2019, third three 2019 2020. The existence of a market condition, TSR, dictates that these awards be marked to market on a quarterly basis using a Monte Carlo simulation. They are recorded through the vesting period as a liability since a portion is payable in cash. The liability for these accrued officer benefits was $581,000 and $694,000 for the years ended December 31, 2020 December 31, 2019, The Company recognized restricted stock forfeitures in the period they occur. The following table presents the activity during 2020 Units Weighted- average Grant Date Fair Value Per Unit Nonvested at January 1, 2020 56,066 $ 21.67 Granted 22,574 26.09 Vested (11,006 ) 19.35 Nonvested at December 31, 2020 67,634 $ 23.51 Expected to vest at December 31, 2020 18,622 $ 24.02 As of December 31, 2020, 2017 December 31, 2020 2019

Note 15 - Commitments

Note 15 - Commitments	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Lease Disclosure [Text Block]	15. COMMITMENTS In the normal course of business, there are various outstanding commitments and certain contingent liabilities which are not December 31: (Dollar amounts in thousands) 2020 2019 Commitments to extend credit $ 255,429 $ 260,579 Standby letters of credit 581 1,616 Total $ 256,010 $ 262,195 These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the Consolidated Balance Sheet. The Company’s exposure to credit loss, in the event of nonperformance by the other parties to the financial instruments, is represented by the contractual amounts as disclosed. The Company minimizes its exposure to credit loss under these commitments by subjecting them to credit approval and review procedures and collateral requirements as deemed necessary. Commitments generally have fixed expiration dates within one Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third one Leasing Commitments The Company leases seven of its branch locations and one loan production office. As of December 31, 2020, December 31, 2020, December 31, 2020, In December 2020, not 12 not December 31, 2020. Lease costs incurred are as follows for the years ended December, 31: 2020 2019 Lease Costs: Finance lease cost: Amortization of right-of-use asset $ 286 $ 360 Interest Expense 131 132 Other 27 57 Operating lease cost 213 245 Total lease cost $ 657 $ 794 The following table displays the weighted-average term and discount rates for both operating and finance leases outstanding as of December 31, 2020: Operating Finance Weighted-average term (years) 5.9 15.7 Weighted-average discount rate 2.9 % 2.6 % The following table displays the undiscounted cash flows due related to operating and finance leases as of December 31, 2020, December 31, 2020 Operating Finance Undiscounted cash flows due within: 2021 $ 169 $ 383 2022 169 385 2023 169 385 2024 133 385 2025 25 385 2026 and thereafter 149 4,100 Total undiscounted cash flows 814 6,023 Impact of present value discount (68 ) (1,184 ) Amount reported on balance sheet $ 746 $ 4,839

Note 16 - Regulatory Restrictio

Note 16 - Regulatory Restrictions	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Banking and Thrift Disclosure [Text Block]	16. REGULATORY RESTRICTIONS The Company is subject to the regulatory requirements of the Federal Reserve System as a bank holding company. The bank is subject to regulations of the Federal Deposit Insurance Corporation (“FDIC”) and the State of Ohio, Division of Financial Institutions. Cash Requirements The Federal Reserve Bank of Cleveland requires the Company to maintain certain average reserve balances. As of December 31, 2019, December 31, 2020 Loans Federal law prevents the Company from borrowing from the Bank unless the loans are secured by specific obligations. Further, such secured loans are limited in amount of 10% of the Bank’s common stock and capital surplus. Dividends MBC is subject to dividend restrictions that generally limit the amount of dividends that can be paid by an Ohio state-chartered bank. Under the Ohio Banking Code, cash dividends may not two 2020 2021

Note 17 - Regulatory Capital

Note 17 - Regulatory Capital	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Regulatory Capital Requirements under Banking Regulations [Text Block]	17. REGULATORY CAPITAL The Bank and Company are subject to regulatory capital requirements administered by banking agencies. Capital adequacy guidelines and prompt corrective action regulations involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators about components, risk weightings, and other factors and the regulators can lower classifications in certain cases. Failure to meet various capital requirements can initiate regulatory action that could have a direct material effect on the financial statements. As of December 31, 2020, The prompt corrective action regulations provide five not may The capital conservation buffer is designed to absorb losses during periods of economic stress. Banking institutions with a ratio of Common Equity Tier 1 The following tables present actual and required capital ratios as of December 31, 2020 2019, As of December 31, 2020 Leverage Tier 1 Risk Based Common Equity Tier 1 Total Risk Based The Middlefield Banking Company 9.45 % 11.47 % 11.47 % 12.68 % Middlefield Banc Corp. 10.22 % 11.68 % 10.96 % 12.88 % Adequately capitalized ratio 4.00 % 6.00 % 4.50 % 8.00 % Adequately capitalized ratio plus fully phased-in capital conservation buffer 4.00 % 8.50 % 7.00 % 10.50 % Well-capitalized ratio (Bank only) 5.00 % 8.00 % 6.50 % 10.00 % As of December 31, 2019 Leverage Tier 1 Risk Based Common Equity Tier 1 Total Risk Based The Middlefield Banking Company 10.35 % 12.12 % 12.12 % 12.79 % Middlefield Banc Corp. 10.23 % 12.56 % 11.77 % 13.23 % Adequately capitalized ratio 4.00 % 6.00 % 4.50 % 8.00 % Adequately capitalized ratio plus fully phased-in capital conservation buffer 4.00 % 8.50 % 7.00 % 10.50 % Well-capitalized ratio (Bank only) 5.00 % 8.00 % 6.50 % 10.00 %

Note 18 - Fair Value Disclosure

Note 18 - Fair Value Disclosure Measurements	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Fair Value Disclosures [Text Block]	18. FAIR VALUE DISCLOSURE MEAS UREMENTS The following disclosures show the hierarchal disclosure framework associated with the level of pricing observations utilized in measuring assets and liabilities at fair value. The three 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. December 31, 2020 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: Subordinated debt $ - $ 21,297 $ - $ 21,297 Obligations of states and political subdivisions - 78,302 - 78,302 Mortgage-backed securities in government- sponsored entities - 14,761 - 14,761 Total debt securities - 114,360 - 114,360 Equity securities in financial institutions 609 - - 609 Total $ 609 $ 114,360 $ - $ 114,969 December 31, 2019 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: Subordinated debt $ - $ 4,126 $ - $ 4,126 Obligations of states and political subdivisions - 82,977 - 82,977 Mortgage-backed securities in government- sponsored entities - 18,630 - 18,630 Total debt securities - 105,733 - 105,733 Equity securities in financial institutions 710 - - 710 Total $ 710 $ 105,733 $ - $ 106,443 Investment Securities Available for Sale Equity Securities no not 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 impaired 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 subsequent to the initial measurement. No December 31, 2020. December 31, 2020 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ - $ - $ 4,111 $ 4,111 Other real estate owned - - 6,992 6,992 December 31, 2019 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ - $ - $ 5,166 $ 5,166 Impaired Loans third may not not December 31, 2020 2019, 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) Fair Value Estimate Valuation Techniques Unobservable Input Range (Weighted Average) December 31, 2020 Impaired loans $ 4,111 Appraisal of collateral (1) Appraisal adjustments (2) 17.6% to 48.5% (22.7%) Other real estate owned $ 6,992 Appraisal of collateral (1) Appraisal adjustments (2) 19.9% Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Fair Value Estimate Valuation Techniques Unobservable Input Range (Weighted Average) December 31, 2019 Impaired loans $ 5,166 Appraisal of collateral (1) Appraisal adjustment (2) 40.3% to 47.4% (41.8%) ( 1 Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level III inputs which are not ( 2 Appraisals may The estimated fair value of the Company’s financial instruments not December 31, 2020 Carrying Total Value Level I Level II Level III Fair Value (in thousands) Financial assets: Cash and cash equivalents $ 112,417 $ 112,417 $ - $ - $ 112,417 Loans held for sale 878 - 878 - 878 Net loans 1,090,626 - - 1,089,573 1,089,573 Bank-owned life insurance 16,938 16,938 - - 16,938 Federal Home Loan Bank stock 5,057 5,057 - - 5,057 Accrued interest receivable 5,210 5,210 - - 5,210 Financial liabilities: Deposits $ 1,225,200 $ 929,450 $ - $ 299,651 $ 1,229,101 Other borrowings 17,038 - - 15,250 15,250 Accrued interest payable 580 580 - - 580 December 31, 2019 Carrying Total Value Level I Level II Level III Fair Value (in thousands) Financial assets: Cash and cash equivalents $ 35,113 $ 35,113 $ - $ - $ 35,113 Loans held for sale 1,220 - 1,220 - 1,220 Net loans 977,490 - - 974,213 974,213 Bank-owned life insurance 16,511 16,511 - - 16,511 Federal Home Loan Bank stock 3,848 3,848 - - 3,848 Accrued interest receivable 3,471 3,471 - - 3,471 Financial liabilities: Deposits $ 1,020,843 $ 652,043 $ - $ 371,193 $ 1,023,236 Short-term borrowings 5,075 5,075 - - 5,075 Other borrowings 12,750 - - 12,783 12,783 Accrued interest payable 917 917 - - 917 All financial instruments included in the above tables, with the exception of net loans, deposits, and other borrowings, are carried at cost, which approximates the fair value of the instruments.

Note 19 - Accumulated Other Com

Note 19 - Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Comprehensive Income (Loss) Note [Text Block]	19. ACCUMULATED OTHER COMPREHENSI VE INCOME (LOSS) The following table presents the changes in accumulated other comprehensive income (loss) by component net of tax: Unrealized gains/(losses) on available-for-sale (Dollars in thousands) securities (a) Balance as of December 31, 2018 $ (154 ) Other comprehensive income 2,149 Amount reclassified from accumulated other comprehensive income (153 ) Period change 1,996 Balance at December 31, 2019 $ 1,842 Balance as of December 31, 2019 $ 1,842 Other comprehensive income 2,442 Balance at December 31, 2020 $ 4,284 (a) All amounts are net of tax. Amounts in parentheses indicate debits to accumulated other comprehensive income. The following table presents significant amounts reclassified out of each component of accumulated other comprehensive income for the year ended December 31, 2019: Amount Reclassified Affected Line Item in from Accumulated Other the Statement Where (Dollars in thousands) Comprehensive Income Net Income is Details about other comprehensive income December 31, 2019 Presented Unrealized gains on available-for-sale securities (a) $ 194 Investment securities gains on sale, net (41 ) Income taxes $ 153 (a) Amounts in parentheses indicate expenses and other amounts indicate income. There were no other reclassifications of amounts from accumulated other comprehensive income for the year ended December 31, 2020.

Note 20 - Risks and Uncertainti

Note 20 - Risks and Uncertainties	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Risks and Uncertainties [Text Block]	20. RISKS AND UNCERTAINTIES COVID- 19 The Coronavirus Aid, Relief, and Economic Security Act, or CARES Act, was signed into law on March 27, 2020, December 31, 2020, December 31, 2020, COVID- 19 4013 may not 1 19; 2 not 30 December 31, 2019; 3 March 1, 2020, 60 COVID–19 March 13, 2020, December 31, 2020. Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Revised) April 7, 2020, not 4013 19 not e.g. six 5 December 31, 2020. As of December 31, 2020, June 30, 2020.

Note 21 - Parent Company

Note 21 - Parent Company	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Condensed Financial Information of Parent Company Only Disclosure [Text Block]	21. PARENT COMPANY Following are condensed financial statements for the Company. CONDENSED BALANCE SHEET (Dollar amounts in thousands) December 31, 2020 2019 ASSETS Cash and due from banks $ 1,222 $ 2,577 Equity securities, at fair value 609 710 Investment in nonbank subsidiary 1 1,400 Investment in subsidiary bank 149,272 141,104 Other assets 1,561 977 TOTAL ASSETS $ 152,665 $ 146,768 LIABILITIES Trust preferred debt $ 8,248 $ 8,248 Other liabilities 607 745 TOTAL LIABILITIES 8,855 8,993 STOCKHOLDERS' EQUITY 143,810 137,775 TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 152,665 $ 146,768 CONDENSED STATEMENT OF COMPREHENSIVE INCOME Year Ended December 31, (Dollar amounts in thousands) 2020 2019 INCOME Dividends from subsidiary bank $ 4,700 $ 4,450 Dividends from nonbank subsidiary 1,399 1,000 (Loss) gain on equity securities (101 ) 94 Other 7 12 Total income 6,005 5,556 EXPENSES Interest expense 192 343 Salaries and employee benefits 465 909 Ohio state franchise tax 1,082 1,044 Other 796 996 Total expenses 2,535 3,292 Income before income tax benefit 3,470 2,264 Income tax benefit (552 ) (669 ) Income before equity in undistributed net income of subsidiaries 4,022 2,933 Equity in undistributed net income of subsidiaries 4,327 9,778 NET INCOME $ 8,349 $ 12,711 Comprehensive income $ 10,791 $ 14,707 CONDENSED STATEMENT OF CASH FLOWS Year Ended December 31, (Dollar amounts in thousands) 2020 2019 OPERATING ACTIVITIES Net income $ 8,349 $ 12,711 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed net income of Middlefield Banking Company (5,726 ) (10,742 ) Equity in undistributed net loss of EMORECO 1,399 964 Stock-based compensation 144 548 Loss (gain) on equity securities 101 (94 ) Other, net (609 ) 3,095 Net cash provided by operating activities 3,658 6,482 FINANCING ACTIVITIES Proceeds from issuance of common stock - 95 Restricted stock cash portion - (44 ) Stock options exercised 12 4 Proceeds from dividend reinvestment plan - 372 Repurchase of treasury shares (1,191 ) (2,229 ) Cash dividends (3,834 ) (3,685 ) Net cash used in financing activities (5,013 ) (5,487 ) (Decrease) increase in cash (1,355 ) 995 CASH AT BEGINNING OF YEAR 2,577 1,582 CASH AT END OF YEAR $ 1,222 $ 2,577 SUPPLEMENTAL INFORMATION Increase in common stock through increase in other, net $ - $ 265

Note 22 - Selected Quarterly Fi

Note 22 - Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Quarterly Financial Information [Text Block]	22. SELECTED QUARTERLY FINANCIAL DATA ( Unaudited) (Dollar amounts in thousands) Three Months Ended March 31, June 30, September 30, December 31, 2020 2020 2020 2020 Total interest and dividend income $ 13,009 $ 13,155 $ 13,507 $ 12,967 Total interest expense 2,976 2,430 2,148 1,696 Net interest income 10,033 10,725 11,359 11,271 Provision for loan losses 2,740 1,000 4,000 2,100 Net interest income after provision for loan losses 7,293 9,725 7,359 9,171 Total noninterest income 1,074 1,495 1,811 1,610 Total noninterest expense 7,252 7,689 7,022 7,825 Income before income taxes 1,115 3,531 2,148 2,956 Income taxes 74 565 295 467 Net income $ 1,041 $ 2,966 $ 1,853 $ 2,489 Per share data: Net income Basic $ 0.16 $ 0.47 $ 0.29 $ 0.39 Diluted 0.16 0.46 0.29 0.39 Average shares outstanding: Basic 6,417,109 6,369,467 6,376,291 6,378,706 Diluted 6,429,443 6,388,118 6,385,765 6,397,681 (Dollar amounts in thousands) Three Months Ended March 31, June 30, September 30, December 31, 2019 2019 2019 2019 Total interest and dividend income $ 13,484 $ 13,720 $ 13,885 $ 13,436 Total interest expense 3,254 3,451 3,307 3,128 Net interest income 10,230 10,269 10,578 10,308 Provision for loan losses 240 110 80 460 Net interest income after provision for loan losses 9,990 10,159 10,498 9,848 Total noninterest income 1,132 1,299 1,105 1,305 Total noninterest expense 7,500 7,482 7,673 7,378 Income before income taxes 3,622 3,976 3,930 3,775 Income taxes 611 686 661 634 Net income $ 3,011 $ 3,290 $ 3,269 $ 3,141 Per share data: Net income Basic $ 0.46 $ 0.51 $ 0.51 $ 0.48 Diluted 0.46 0.50 0.51 0.48 Average shares outstanding: Basic 6,498,278 6,502,508 6,458,258 6,423,543 Diluted 6,510,568 6,514,946 6,479,066 6,455,387

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Nature of Operations and Basis of Presentation Middlefield Banc Corp. (the “Company”) is an Ohio corporation organized to become the holding company of The Middlefield Banking Company (“MBC”). MBC is a state-chartered bank located in Ohio, whose consolidated financial statements also include the accounts of MBC’s subsidiary, Middlefield Investments, Inc. (“MI”), established March 13, 2019. October 23, 2009, The consolidated financial statements of the Company include its wholly owned subsidiaries, MBC and EMORECO, Inc. Significant intercompany items have been eliminated in preparing the consolidated financial statements. The financial statements have been prepared in conformity with U.S. Generally Accepted Accounting Principles. In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the balance sheet date and revenues and expenses for the period. Actual results could differ from those estimates.
Marketable Securities, Policy [Policy Text Block]	Investment and Equity Securities 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, which are computed using a level yield method and recognized as adjustments of interest income. 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 2020 2019, Securities are evaluated on at least a quarterly basis 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 one not
Stockholders' Equity, Policy [Policy Text Block]	Restricted Stock Common stock of the Federal Home Loan Bank (“FHLB”) represents ownership in an institution that is wholly owned by other financial institutions. This equity security is accounted for at cost and classified with other assets. The FHLB of Cincinnati has reported profits for 2020 2019, not December 31, 2020 2019.
Mortgage Banking Activity [Policy Text Block]	Mortgage Banking Activities The Bank sells mortgage loans on a servicing retained basis. Servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. The Bank measures servicing assets using the amortization method. Loan servicing rights are amortized in proportion to and over the period of estimated net future servicing revenue. The expected period of the estimated net servicing income is based in part on the expected prepayment of the underlying mortgages. The unamortized balance of mortgage servicing rights is included in accrued interest and other assets on the Consolidated Balance Sheet. Servicing fee income is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of outstanding principal and are recorded as income when earned. The amortization of mortgage servicing rights is netted against loan servicing fee income. Late fees and ancillary fees related to loan servicing are not December 31, 2020 2019,
Financing Receivable [Policy Text Block]	Loans 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 loan and lease losses. Interest income is recognized, when earned, 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 collection of interest is doubtful. Interest received on nonaccrual loans is recorded as income or applied against principal according to management’s judgment as to the collectability of such principal. Loan origination fees and certain direct loan origination costs are deferred and the net amount amortized as an adjustment of the related loan’s yield. These amounts are amortized over the contractual life of the related loans.
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]	Allowance for Loan and Lease Losses The allowance for loan and lease losses represents the amount which 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 which is 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, past 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 significant change in the near term. A loan is considered impaired when it is probable the borrower will not 89 not not first Mortgage loans secured by one four
Certain Loans and Debt Securities Acquired in Transfer, Recognizing Interest Income on Impaired Loans, Policy [Policy Text Block]	Loans Acquired Loans acquired, including loans that have evidence of deterioration of credit quality since origination and for which it is probable, at acquisition, that the Company will be unable to collect all contractually required payments receivable, are initially recorded at fair value (as determined by the present value of expected future cash flows) with no not For purchased loans acquired that are not
Property, Plant and Equipment, Policy [Policy Text Block]	Premises and Equipment Land is carried at cost. Premises and equipment are stated at cost net of accumulated depreciation. Depreciation is computed on the straight-line method over the estimated useful lives of the assets, which range from 3 to 20 years for furniture, fixtures, and equipment and 3 to 40 years for buildings and leasehold improvements. Expenditures for maintenance and repairs are charged against income as incurred. Costs of major additions and improvements are capitalized.
Lessee, Leases [Policy Text Block]	Leases The Company has operating and financing leases for several branch locations and office space. Generally, the underlying lease agreements do not may e.g. e.g. may one Most leases include one As most of our leases do not
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]	Goodwill The Company accounts for goodwill using a two
Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]	Intangible Assets Intangible assets include core deposit intangibles, which are a measure of the value of consumer demand and savings deposits acquired in business combinations accounted for as purchases. The core deposit intangibles are being amortized to their estimated residual values over their expected useful lives, commonly of ten
Life Insurance Corporate or Bank Owned [Policy Text Block]	Bank-Owned Life Insurance (“BOLI”) The Company owns insurance on the lives of a certain group of key employees. The policies were purchased to help offset the increase in the costs of various fringe benefit plans including healthcare. The cash surrender value of these policies is included as an asset on the Consolidated Balance Sheet and any increases in the cash surrender value are recorded as noninterest income on the Consolidated Statement of Income. In the event of the death of an insured individual under these policies, the Company would receive a death benefit, which would be recorded as tax-free noninterest income.
Real Estate, Policy [Policy Text Block]	Other Real Estate Owned ("OREO") Real estate properties acquired through foreclosure are initially recorded at fair value at the date of foreclosure, establishing a new cost basis. After foreclosure, management periodically performs valuations and the real estate is carried at the lower of cost or fair value less estimated cost to sell. Revenue and expenses from operations of the properties, gains or losses on sales and additions to the valuation allowance are included in operating results.
Income Tax, Policy [Policy Text Block]	Income Taxes The Company and its subsidiaries file a consolidated federal income tax return. Deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes.
Earnings Per Share, Policy [Policy Text Block]	Earnings Per Share The Company provides dual presentation of basic and diluted earnings per share. Basic earnings per share is calculated utilizing net income as reported in the numerator and average shares outstanding in the denominator. The computation of diluted earnings per share differs in that the dilutive effects of any stock options, warrants, and convertible securities are adjusted in the denominator. Earnings and dividends per share are restated for all stock splits and stock dividends through the date of issuance of the financial statements.
Share-based Payment Arrangement [Policy Text Block]	Stock-Based Compensation The Company accounts for stock compensation based on the grant date fair value of all share-based payment awards that are expected to vest, including employee share options to be recognized as employee compensation expense over the requisite service period. Compensation cost is recognized for restricted stock issued to employees based on the fair value of these awards at the date of grant. The market price of the Company’s common shares at the date of grant is used to estimate the fair value of restricted stock and stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period, and is recorded in "Salaries and employee benefits" expense. (See Note 14
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash Flow Information The Company has defined cash and cash equivalents as those amounts included in the Consolidated Balance Sheet captions as “Cash and due from banks” and “Federal funds sold” with original maturities of less than 90
Advertising Cost [Policy Text Block]	Advertising Costs Advertising costs are expensed as incurred.
Reclassification, Comparability Adjustment [Policy Text Block]	Reclassification of Comparative Amounts Certain comparative amounts for prior years have been reclassified to conform to current-year presentations. Such reclassifications did not
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Iss ued Accounting Pronouncements In June 2016, 2016 13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments first December 15, 2022, CECL Adoption 326, not may no In January 2017, 2017 04, Simplifying the Test for Goodwill Impairment 2 2, not December 15, 2022, not In November 2019, 2019 11, Codification Improvements to Topic 326, 326, not 2016 13 November 26, 2019, 2019 11 2016 13. 2016 13, 2019 11 December 15, 2019, not In December 2019, 2019 12, Income Taxes (Topic 740 not not December 15, 2020. December 15, 2021, December 15, 2022. In March 2020, 2020 03 , Codification Improvements to Financial Instruments. 2016. seven not 825, Financial Instruments 842 326. 2019 04 December 15, 2019, not 2016 01. 2016 13 not 2016 13. not 2016 13. 2016 13 December 15, 2019, In January 2020, 2020 04, Reference Rate Reform (Topic 848 March 2020 not not one December 31, 2022. In October 2020, 2020 08, Codification Improvements to Subtopic 310 20, 310 20 35 33. 2020 08 December 15, 2020. not 2020 08 December 15, 2021, December 15, 2022. not In January 2021, 2021 01, Reference Rate Reform (Topic 848 848. 2021 01 848. 2021 01 may March 12, 2020, not December 31, 2022, December 31, 2022, December 31, 2022,

Note 2 - Revenue Recognition (T

Note 2 - Revenue Recognition (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Disaggregation of Revenue [Table Text Block]	Noninterest Income 2020 2019 (Dollar amounts in thousands) Service charges on deposit accounts: Overdraft fees $ 665 $ 841 ATM banking fees 1,061 932 Service charges and other fees 813 413 Investment securities gains on sale, net (a) - 194 (Loss) gain on equity securities (a) (101 ) 94 Earnings on bank-owned life insurance (a) 427 431 Gain on sale of loans (a) 1,487 433 Revenue from investment services (b) 526 528 Other income 1,112 975 Total noninterest income $ 5,990 $ 4,841 Net gain on other real estate owned $ (253 ) $ (123 )

Note 3 - Earnings Per Share (Ta

Note 3 - Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Weighted Average Number of Shares [Table Text Block]	2020 2019 Weighted-average common shares issued 7,302,845 7,286,554 Average treasury stock shares (917,495 ) (816,146 ) Weighted-average common shares and common stock equivalents used to calculate basic earnings per share 6,385,350 6,470,408 Additional common stock equivalents (stock options and restricted stock) used to calculate diluted earnings per share 19,174 32,398 Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share 6,404,524 6,502,806

Note 4 - Investment and Equit_2

Note 4 - Investment and Equity Securities (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	December 31, 2020 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value Subordinated debt $ 21,050 $ 254 $ (7 ) $ 21,297 Obligations of states and political subdivisions: Taxable 500 2 - 502 Tax-exempt 73,157 4,643 - 77,800 Mortgage-backed securities in government-sponsored entities 14,230 536 (5 ) 14,761 Total $ 108,937 $ 5,435 $ (12 ) $ 114,360 December 31, 2019 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value Subordinated debt $ 4,000 $ 126 $ - $ 4,126 Obligations of states and political subdivisions: Taxable 500 1 - 501 Tax-exempt 80,436 2,065 (25 ) 82,476 Mortgage-backed securities in government-sponsored entities 18,465 274 (109 ) 18,630 Total $ 103,401 $ 2,466 $ (134 ) $ 105,733
Investments Classified by Contractual Maturity Date [Table Text Block]	Amortized Fair (Dollar amounts in thousands) Cost Value Due in one year or less $ 1,556 $ 1,577 Due after one year through five years 1,701 1,738 Due after five years through ten years 28,767 29,236 Due after ten years 76,913 81,809 Total $ 108,937 $ 114,360
Realized Gain (Loss) on Investments [Table Text Block]	2020 2019 Proceeds from sales $ - $ 12,324 Gross realized gains - 227 Gross realized losses - (33 )
Schedule of Unrealized Loss on Investments [Table Text Block]	December 31, 2020 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 $ 4,243 $ (7 ) $ - $ - $ 4,243 $ (7 ) Mortgage-backed securities in government-sponsored entities 2,748 (5 ) - - 2,748 (5 ) Total $ 6,991 $ (12 ) $ - $ - $ 6,991 $ (12 ) December 31, 2019 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 Obligations of states and political subdivisions Tax-exempt $ 4,324 $ (25 ) $ - $ - $ 4,324 $ (25 ) Mortgage-backed securities in government-sponsored entities 1,409 (2 ) 8,223 (107 ) 9,632 (109 ) Total $ 5,733 $ (27 ) $ 8,223 $ (107 ) $ 13,956 $ (134 )

Note 5 - Loans and Related Al_2

Note 5 - Loans and Related Allowance for Loan and Lease Losses (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule Of Financing Receivable By Segment [Table Text Block]	December 31, 2020 Ending Loan Balance by Impairment Evaluation Individually Collectively Total Loans Loans: Commercial real estate: Owner occupied $ 1,565 $ 101,556 $ 103,121 Non-owner occupied 4,123 305,301 309,424 Multifamily - 39,562 39,562 Residential real estate 1,319 232,676 233,995 Commercial and industrial 834 231,210 232,044 Home equity lines of credit 246 112,297 112,543 Construction and other - 63,573 63,573 Consumer installment - 9,823 9,823 Total $ 8,087 $ 1,095,998 $ 1,104,085 December 31, 2019 Ending Loan Balance by Impairment Evaluation Individually Collectively Total Loans Loans: Commercial real estate: Owner occupied $ 3,474 $ 98,912 $ 102,386 Non-owner occupied 7,084 295,096 302,180 Multifamily - 62,028 62,028 Residential real estate 1,278 233,520 234,798 Commercial and industrial 882 88,645 89,527 Home equity lines of credit 351 111,897 112,248 Construction and other - 66,680 66,680 Consumer installment 1 14,410 14,411 Total $ 13,070 $ 971,188 $ 984,258
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]	December 31, 2020 Ending Allowance Balance by Impairment Evaluation Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Allocation Loans: Commercial real estate: Owner occupied $ 10 $ 1,332 $ 1,342 Non-owner occupied 371 6,446 6,817 Multifamily - 461 461 Residential real estate 20 1,663 1,683 Commercial and industrial 48 1,305 1,353 Home equity lines of credit 41 1,364 1,405 Construction and other - 378 378 Consumer installment - 20 20 Total $ 490 $ 12,969 $ 13,459 December 31, 2019 Ending Allowance Balance by Impairment Evaluation Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Allocation Loans: Commercial real estate: Owner occupied $ 45 $ 756 $ 801 Non-owner occupied 582 2,800 3,382 Multifamily - 340 340 Residential real estate 28 698 726 Commercial and industrial 3 453 456 Home equity lines of credit 2 930 932 Construction and other - 103 103 Consumer installment - 28 28 Total $ 660 $ 6,108 $ 6,768 Allowance for Loan and Lease Losses Balance Balance December 31, 2019 Charge-offs Recoveries Provision December 31, 2020 Loans: Commercial real estate: Owner occupied $ 801 $ (50 ) $ 17 $ 574 $ 1,342 Non-owner occupied 3,382 (3,022 ) 74 6,383 6,817 Multifamily 340 - - 121 461 Residential real estate 726 (62 ) 42 977 1,683 Commercial and industrial 456 (245 ) 294 848 1,353 Home equity lines of credit 932 (55 ) 84 444 1,405 Construction and other 103 - 157 118 378 Consumer installment 28 (405 ) 22 375 20 Total $ 6,768 $ (3,839 ) $ 690 $ 9,840 $ 13,459 Allowance for Loan and Lease Losses Balance Balance December 31, 2018 Charge-offs Recoveries Provision December 31, 2019 Loans: Commercial real estate: Owner occupied $ 1,315 $ (32 ) $ 5 $ (487 ) $ 801 Non-owner occupied 2,862 - 12 508 3,382 Multifamily 474 - - (134 ) 340 Residential real estate 761 (361 ) 46 280 726 Commercial and industrial 969 (519 ) 82 (76 ) 456 Home equity lines of credit 820 (162 ) 32 242 932 Construction and other 100 - 74 (71 ) 103 Consumer installment 127 (735 ) 8 628 28 Total $ 7,428 $ (1,809 ) $ 259 $ 890 $ 6,768
Impaired Financing Receivables [Table Text Block]	December 31, 2020 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial real estate: Owner occupied $ 1,118 $ 1,142 $ - Non-owner occupied 801 801 - Residential real estate 941 1,013 - Commercial and industrial 561 1,056 - Home equity lines of credit 80 92 - Total $ 3,501 $ 4,104 $ - With an allowance recorded: Commercial real estate: Owner occupied $ 447 $ 447 $ 10 Non-owner occupied 3,322 3,596 371 Residential real estate 378 378 20 Commercial and industrial 273 276 48 Home equity lines of credit 166 166 41 Total $ 4,586 $ 4,863 $ 490 Total: Commercial real estate: Owner occupied $ 1,565 $ 1,589 $ 10 Non-owner occupied 4,123 4,397 371 Residential real estate 1,319 1,391 20 Commercial and industrial 834 1,332 48 Home equity lines of credit 246 258 41 Total $ 8,087 $ 8,967 $ 490 December 31, 2019 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial real estate: Owner occupied $ 1,772 $ 1,772 $ - Non-owner occupied 3,845 3,845 - Residential real estate 759 829 - Commercial and industrial 747 1,524 - Home equity lines of credit 220 228 - Consumer installment 1 1 - Total $ 7,344 $ 8,199 $ - With an allowance recorded: Commercial real estate: Owner occupied $ 1,702 $ 1,713 $ 45 Non-owner occupied 3,239 3,239 582 Residential real estate 519 569 28 Commercial and industrial 135 135 3 Home equity lines of credit 131 131 2 Total $ 5,726 $ 5,787 $ 660 Total: Commercial real estate: Owner occupied $ 3,474 $ 3,485 $ 45 Non-owner occupied 7,084 7,084 582 Residential real estate 1,278 1,398 28 Commercial and industrial 882 1,659 3 Home equity lines of credit 351 359 2 Consumer installment 1 1 - Total $ 13,070 $ 13,986 $ 660
Schedule of Additional Information Related to Impaired Loans [Table Text Block]	As of December 31, 2020 As of December 31, 2019 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Commercial real estate: Owner occupied $ 2,851 $ 72 $ 3,808 $ 176 Non-owner occupied 8,815 184 6,558 199 Residential real estate 1,247 52 1,626 49 Commercial and industrial 1,076 42 1,770 141 Home equity lines of credit 308 8 177 2 Construction and other - - 648 - Consumer installment - - 2 - Total $ 14,297 $ 358 $ 14,589 $ 567
Financing Receivable, Troubled Debt Restructuring [Table Text Block]	December 31, 2020 Number of Contracts Pre-Modification Post-Modification Troubled Debt Restructurings Term Modification Other Total Outstanding Recorded Investment Outstanding Recorded Investment Commercial and industrial 2 - 2 $ 25 $ 24 Residential real estate 1 - 1 114 114 $ 139 $ 138 December 31, 2019 Number of Contracts Pre-Modification Post-Modification Troubled Debt Restructurings Term Modification Other Total Outstanding Recorded Investment Outstanding Recorded Investment Commercial and industrial 3 - 3 $ 488 $ 490 Residential real estate - 2 2 123 178 Home equity lines of credit 4 - 4 171 176 $ 782 $ 844
Financing Receivable Credit Quality Indicators [Table Text Block]	Special Total December 31, 2020 Pass Mention Substandard Doubtful Loans Commercial real estate: Owner occupied $ 93,939 $ 7,084 $ 2,098 $ - $ 103,121 Non-owner occupied 258,974 983 49,467 - 309,424 Multifamily 39,562 - - - 39,562 Residential real estate 230,944 265 2,786 - 233,995 Commercial and industrial 227,765 1,800 2,479 - 232,044 Home equity lines of credit 111,208 - 1,335 - 112,543 Construction and other 58,082 - 5,491 - 63,573 Consumer installment 9,816 - 7 - 9,823 Total $ 1,030,290 $ 10,132 $ 63,663 $ - $ 1,104,085 Special Total December 31, 2019 Pass Mention Substandard Doubtful Loans Commercial real estate: Owner occupied $ 95,518 $ 3,951 $ 2,917 $ - $ 102,386 Non-owner occupied 292,191 3,038 6,951 - 302,180 Multifamily 62,028 - - - 62,028 Residential real estate 231,633 420 2,745 - 234,798 Commercial and industrial 84,136 3,619 1,772 - 89,527 Home equity lines of credit 111,354 - 894 - 112,248 Construction and other 66,680 - - - 66,680 Consumer installment 14,399 - 12 - 14,411 Total $ 957,939 $ 11,028 $ 15,291 $ - $ 984,258
Financing Receivable, Past Due [Table Text Block]	30-59 Days 60-89 Days 90 Days+ Total Total December 31, 2020 Current Past Due Past Due Past Due Past Due Loans Commercial real estate: Owner occupied $ 102,587 $ 418 $ - $ 116 $ 534 $ 103,121 Non-owner occupied 305,613 1,844 1,373 594 3,811 309,424 Multifamily 39,562 - - - - 39,562 Residential real estate 230,996 2,364 95 540 2,999 233,995 Commercial and industrial 231,534 260 219 31 510 232,044 Home equity lines of credit 112,325 120 - 98 218 112,543 Construction and other 63,529 44 - - 44 63,573 Consumer installment 9,424 71 108 220 399 9,823 Total $ 1,095,570 $ 5,121 $ 1,795 $ 1,599 $ 8,515 $ 1,104,085 30-59 Days 60-89 Days 90 Days+ Total Total December 31, 2019 Current Past Due Past Due Past Due Past Due Loans Commercial real estate: Owner occupied $ 101,264 $ 64 $ - $ 1,058 $ 1,122 $ 102,386 Non-owner occupied 298,941 - - 3,239 3,239 302,180 Multifamily 62,028 - - - - 62,028 Residential real estate 232,518 1,439 34 807 2,280 234,798 Commercial and industrial 88,965 190 66 306 562 89,527 Home equity lines of credit 111,792 274 29 153 456 112,248 Construction and other 66,680 - - - - 66,680 Consumer installment 13,378 622 216 195 1,033 14,411 Total $ 975,566 $ 2,589 $ 345 $ 5,758 $ 8,692 $ 984,258
Financing Receivable, Nonaccrual [Table Text Block]	December 31, 2020 Nonaccrual 90+ Days Past Due and Accruing Commercial real estate: Owner occupied $ 458 $ - Non-owner occupied 3,758 - Residential real estate 2,487 - Commercial and industrial 509 - Home equity lines of credit 422 - Consumer installment 224 - Total $ 7,858 $ - December 31, 2019 Nonaccrual 90+ Days Past Due and Accruing Commercial real estate: Owner occupied $ 1,162 $ - Non-owner occupied 3,289 - Residential real estate 2,576 - Commercial and industrial 946 - Home equity lines of credit 709 - Consumer installment 197 - Total $ 8,879 $ -

Note 6 - Premises and Equipme_2

Note 6 - Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Property, Plant and Equipment [Table Text Block]	(Dollar amounts in thousands) 2020 2019 Land and land improvements $ 2,963 $ 2,920 Building and leasehold improvements 16,239 15,836 Furniture, fixtures, and equipment 9,395 9,357 Financing right-of-use assets 4,737 4,012 Total premises and equipment 33,334 32,125 Less accumulated depreciation and amortization 15,001 14,251 Total premises and equipment, net $ 18,333 $ 17,874

Note 7 - Goodwill and Intangi_2

Note 7 - Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	2021 $ 321 2022 309 2023 296 2024 281 2025 264 Thereafter 253 Total $ 1,724
Servicing Asset at Amortized Cost [Table Text Block]	(Dollar amounts in thousands) 2020 2019 Beginning of year $ 390 $ 357 Additions 276 67 Amortized to expense (190 ) (34 ) End of year $ 476 $ 390

Note 8 - Accrued Interest Rec_2

Note 8 - Accrued Interest Receivable and Other Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Other Assets [Table Text Block]	(Dollar amounts in thousands) 2020 2019 Restricted stock $ 5,057 $ 3,848 Accrued interest receivable on investment securities 854 753 Accrued interest receivable on loans 4,356 2,718 Deferred tax asset, net 1,073 374 Operating right-of-use assets 742 903 Other 1,554 1,946 Total $ 13,636 $ 10,542

Note 9 - Deposits (Tables)

Note 9 - Deposits (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Time Deposit Maturities [Table Text Block]	(Dollar amounts in thousands) 2021 $ 216,732 2022 38,746 2023 20,419 2024 12,854 2025 6,999 Total $ 295,750

Note 10 - Short-term Borrowin_2

Note 10 - Short-term Borrowings (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Short-term Debt [Table Text Block]	(Dollar amounts in thousands) 2020 2019 2018 Balance at year-end - $ 5,075 $ 90,398 Average balance outstanding 22,637 14,808 42,231 Maximum month-end balance 62,329 92,000 101,857 Weighted-average rate at year-end N/A 1.66 % 2.53 % Weighted-average rate during the year 0.35 % 2.49 % 1.99 %

Note 11 - Other Borrowings (Tab

Note 11 - Other Borrowings (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Debt [Table Text Block]	Weighted- Stated interest (Dollar amounts in thousands) Maturity range average rate range Description from to interest rate from to 2020 2019 Fixed-rate amortizing (a) 07/01/25 10/01/28 4.06 % 4.02 % 4.47 % $ - $ 404 Finance lease liabilities 09/30/34 06/01/40 2.64 % 1.89 % 3.51 % 4,839 4,098 PPPLF (b) 04/13/22 04/13/22 0.35 % 0.35 % 0.35 % 3,951 - Junior subordinated debt 12/21/37 12/21/37 2.56 % 1.88 % 3.61 % 8,248 8,248 Total $ 17,038 $ 12,750
Schedule of Maturities of Long-term Debt [Table Text Block]	(Dollar amounts in thousands) Weighted- Year Ending December 31, Amount Average Rate 2021 $ 257 2.64 % 2022 4,216 0.68 % 2023 272 2.64 % 2024 279 2.64 % 2025 286 2.64 % Beyond 2025 11,728 2.01 % Total $ 17,038 1.62 %

Note 12 - Accrued Interest Pa_2

Note 12 - Accrued Interest Payable and Other Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Other Liabilities [Table Text Block]	2020 2019 (Dollar amounts in thousands) Accrued interest payable $ 580 $ 917 Accrued directors' benefits 1,587 1,470 Accrued salary and benefits expense 1,410 1,451 Operating lease liabilities 746 906 Other 1,608 1,288 Total $ 5,931 $ 6,032

Note 13 - Income Taxes (Tables)

Note 13 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	(Dollar amounts in thousands) 2020 2019 Current payable $ 2,749 $ 2,265 Deferred (1,348 ) 327 Total provision $ 1,401 $ 2,592
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	(Dollar amounts in thousands) 2020 2019 Deferred tax assets: Allowance for loan and lease losses $ 2,826 $ 1,288 Supplemental retirement plan 482 469 Investment security basis adjustment 18 18 Nonaccrual interest income 355 297 Accrued compensation 244 244 Deferred origination fees, net - 30 Lease liability 1,173 1,051 Gross deferred tax assets 5,098 3,397 Deferred tax liabilities: Premises and equipment 709 583 Net unrealized gain on AFS securities 1,139 490 Net unrealized gain on equity securities 41 62 FHLB stock dividends 139 139 Intangibles 414 378 Mortgage servicing rights 100 82 Deferred origination fees, net 50 - Acquisition fair value adjustments 278 253 Right of use assets 1,151 1,032 Other 4 4 Gross deferred tax liabilities 4,025 3,023 Net deferred tax assets $ 1,073 $ 374
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	(Dollar amounts in thousands) 2020 2019 % of % of Pretax Pretax Amount Income Amount Income Provision at statutory rate $ 2,047 21.0 % $ 3,214 21.0 % Tax-exempt income (669 ) (6.9 )% (647 ) (4.2 )% Nondeductible interest expense 16 0.2 % 32 0.2 % Stock-based compensation (4 ) - % - - % Other 11 0.1 % (7 ) (0.1 )% Actual tax expense and effective rate $ 1,401 14.4 % $ 2,592 16.9 %

Note 14 - Employee Benefits (Ta

Note 14 - Employee Benefits (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Share-based Payment Arrangement, Option, Activity [Table Text Block]	Shares Weighted- average Exercise Price Per Share Outstanding, January 1, 2020 14,500 $ 8.78 Exercised (2,350 ) 8.78 Outstanding, December 31, 2020 12,150 $ 8.78 Exercisable, December 31, 2020 12,150 $ 8.78
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]	Units Weighted- average Grant Date Fair Value Per Unit Nonvested at January 1, 2020 56,066 $ 21.67 Granted 22,574 26.09 Vested (11,006 ) 19.35 Nonvested at December 31, 2020 67,634 $ 23.51 Expected to vest at December 31, 2020 18,622 $ 24.02

Note 15 - Commitments (Tables)

Note 15 - Commitments (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Other Commitments [Table Text Block]	(Dollar amounts in thousands) 2020 2019 Commitments to extend credit $ 255,429 $ 260,579 Standby letters of credit 581 1,616 Total $ 256,010 $ 262,195
Lease, Cost [Table Text Block]	2020 2019 Lease Costs: Finance lease cost: Amortization of right-of-use asset $ 286 $ 360 Interest Expense 131 132 Other 27 57 Operating lease cost 213 245 Total lease cost $ 657 $ 794
Lease, Term and Discount Rate [Table Text Block]	Operating Finance Weighted-average term (years) 5.9 15.7 Weighted-average discount rate 2.9 % 2.6 %
Operating and Finance Lease, Liability, Maturity [Table Text Block]	Operating Finance Undiscounted cash flows due within: 2021 $ 169 $ 383 2022 169 385 2023 169 385 2024 133 385 2025 25 385 2026 and thereafter 149 4,100 Total undiscounted cash flows 814 6,023 Impact of present value discount (68 ) (1,184 ) Amount reported on balance sheet $ 746 $ 4,839

Note 17 - Regulatory Capital (T

Note 17 - Regulatory Capital (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]	As of December 31, 2020 Leverage Tier 1 Risk Based Common Equity Tier 1 Total Risk Based The Middlefield Banking Company 9.45 % 11.47 % 11.47 % 12.68 % Middlefield Banc Corp. 10.22 % 11.68 % 10.96 % 12.88 % Adequately capitalized ratio 4.00 % 6.00 % 4.50 % 8.00 % Adequately capitalized ratio plus fully phased-in capital conservation buffer 4.00 % 8.50 % 7.00 % 10.50 % Well-capitalized ratio (Bank only) 5.00 % 8.00 % 6.50 % 10.00 % As of December 31, 2019 Leverage Tier 1 Risk Based Common Equity Tier 1 Total Risk Based The Middlefield Banking Company 10.35 % 12.12 % 12.12 % 12.79 % Middlefield Banc Corp. 10.23 % 12.56 % 11.77 % 13.23 % Adequately capitalized ratio 4.00 % 6.00 % 4.50 % 8.00 % Adequately capitalized ratio plus fully phased-in capital conservation buffer 4.00 % 8.50 % 7.00 % 10.50 % Well-capitalized ratio (Bank only) 5.00 % 8.00 % 6.50 % 10.00 %

Note 18 - Fair Value Disclosu_2

Note 18 - Fair Value Disclosure Measurements (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	December 31, 2020 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: Subordinated debt $ - $ 21,297 $ - $ 21,297 Obligations of states and political subdivisions - 78,302 - 78,302 Mortgage-backed securities in government- sponsored entities - 14,761 - 14,761 Total debt securities - 114,360 - 114,360 Equity securities in financial institutions 609 - - 609 Total $ 609 $ 114,360 $ - $ 114,969 December 31, 2019 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: Subordinated debt $ - $ 4,126 $ - $ 4,126 Obligations of states and political subdivisions - 82,977 - 82,977 Mortgage-backed securities in government- sponsored entities - 18,630 - 18,630 Total debt securities - 105,733 - 105,733 Equity securities in financial institutions 710 - - 710 Total $ 710 $ 105,733 $ - $ 106,443
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	December 31, 2020 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ - $ - $ 4,111 $ 4,111 Other real estate owned - - 6,992 6,992 December 31, 2019 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ - $ - $ 5,166 $ 5,166
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]	Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Fair Value Estimate Valuation Techniques Unobservable Input Range (Weighted Average) December 31, 2020 Impaired loans $ 4,111 Appraisal of collateral (1) Appraisal adjustments (2) 17.6% to 48.5% (22.7%) Other real estate owned $ 6,992 Appraisal of collateral (1) Appraisal adjustments (2) 19.9% Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Fair Value Estimate Valuation Techniques Unobservable Input Range (Weighted Average) December 31, 2019 Impaired loans $ 5,166 Appraisal of collateral (1) Appraisal adjustment (2) 40.3% to 47.4% (41.8%)
Fair Value, by Balance Sheet Grouping [Table Text Block]	December 31, 2020 Carrying Total Value Level I Level II Level III Fair Value (in thousands) Financial assets: Cash and cash equivalents $ 112,417 $ 112,417 $ - $ - $ 112,417 Loans held for sale 878 - 878 - 878 Net loans 1,090,626 - - 1,089,573 1,089,573 Bank-owned life insurance 16,938 16,938 - - 16,938 Federal Home Loan Bank stock 5,057 5,057 - - 5,057 Accrued interest receivable 5,210 5,210 - - 5,210 Financial liabilities: Deposits $ 1,225,200 $ 929,450 $ - $ 299,651 $ 1,229,101 Other borrowings 17,038 - - 15,250 15,250 Accrued interest payable 580 580 - - 580 December 31, 2019 Carrying Total Value Level I Level II Level III Fair Value (in thousands) Financial assets: Cash and cash equivalents $ 35,113 $ 35,113 $ - $ - $ 35,113 Loans held for sale 1,220 - 1,220 - 1,220 Net loans 977,490 - - 974,213 974,213 Bank-owned life insurance 16,511 16,511 - - 16,511 Federal Home Loan Bank stock 3,848 3,848 - - 3,848 Accrued interest receivable 3,471 3,471 - - 3,471 Financial liabilities: Deposits $ 1,020,843 $ 652,043 $ - $ 371,193 $ 1,023,236 Short-term borrowings 5,075 5,075 - - 5,075 Other borrowings 12,750 - - 12,783 12,783 Accrued interest payable 917 917 - - 917

Note 19 - Accumulated Other C_2

Note 19 - Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Unrealized gains/(losses) on available-for-sale (Dollars in thousands) securities (a) Balance as of December 31, 2018 $ (154 ) Other comprehensive income 2,149 Amount reclassified from accumulated other comprehensive income (153 ) Period change 1,996 Balance at December 31, 2019 $ 1,842 Balance as of December 31, 2019 $ 1,842 Other comprehensive income 2,442 Balance at December 31, 2020 $ 4,284
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]	Amount Reclassified Affected Line Item in from Accumulated Other the Statement Where (Dollars in thousands) Comprehensive Income Net Income is Details about other comprehensive income December 31, 2019 Presented Unrealized gains on available-for-sale securities (a) $ 194 Investment securities gains on sale, net (41 ) Income taxes $ 153

Note 21 - Parent Company (Table

Note 21 - Parent Company (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Condensed Balance Sheet [Table Text Block]	CONDENSED BALANCE SHEET (Dollar amounts in thousands) December 31, 2020 2019 ASSETS Cash and due from banks $ 1,222 $ 2,577 Equity securities, at fair value 609 710 Investment in nonbank subsidiary 1 1,400 Investment in subsidiary bank 149,272 141,104 Other assets 1,561 977 TOTAL ASSETS $ 152,665 $ 146,768 LIABILITIES Trust preferred debt $ 8,248 $ 8,248 Other liabilities 607 745 TOTAL LIABILITIES 8,855 8,993 STOCKHOLDERS' EQUITY 143,810 137,775 TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 152,665 $ 146,768
Condensed Income Statement [Table Text Block]	CONDENSED STATEMENT OF COMPREHENSIVE INCOME Year Ended December 31, (Dollar amounts in thousands) 2020 2019 INCOME Dividends from subsidiary bank $ 4,700 $ 4,450 Dividends from nonbank subsidiary 1,399 1,000 (Loss) gain on equity securities (101 ) 94 Other 7 12 Total income 6,005 5,556 EXPENSES Interest expense 192 343 Salaries and employee benefits 465 909 Ohio state franchise tax 1,082 1,044 Other 796 996 Total expenses 2,535 3,292 Income before income tax benefit 3,470 2,264 Income tax benefit (552 ) (669 ) Income before equity in undistributed net income of subsidiaries 4,022 2,933 Equity in undistributed net income of subsidiaries 4,327 9,778 NET INCOME $ 8,349 $ 12,711 Comprehensive income $ 10,791 $ 14,707
Condensed Cash Flow Statement [Table Text Block]	CONDENSED STATEMENT OF CASH FLOWS Year Ended December 31, (Dollar amounts in thousands) 2020 2019 OPERATING ACTIVITIES Net income $ 8,349 $ 12,711 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed net income of Middlefield Banking Company (5,726 ) (10,742 ) Equity in undistributed net loss of EMORECO 1,399 964 Stock-based compensation 144 548 Loss (gain) on equity securities 101 (94 ) Other, net (609 ) 3,095 Net cash provided by operating activities 3,658 6,482 FINANCING ACTIVITIES Proceeds from issuance of common stock - 95 Restricted stock cash portion - (44 ) Stock options exercised 12 4 Proceeds from dividend reinvestment plan - 372 Repurchase of treasury shares (1,191 ) (2,229 ) Cash dividends (3,834 ) (3,685 ) Net cash used in financing activities (5,013 ) (5,487 ) (Decrease) increase in cash (1,355 ) 995 CASH AT BEGINNING OF YEAR 2,577 1,582 CASH AT END OF YEAR $ 1,222 $ 2,577 SUPPLEMENTAL INFORMATION Increase in common stock through increase in other, net $ - $ 265

Note 22 - Selected Quarterly _2

Note 22 - Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Quarterly Financial Information [Table Text Block]	(Dollar amounts in thousands) Three Months Ended March 31, June 30, September 30, December 31, 2020 2020 2020 2020 Total interest and dividend income $ 13,009 $ 13,155 $ 13,507 $ 12,967 Total interest expense 2,976 2,430 2,148 1,696 Net interest income 10,033 10,725 11,359 11,271 Provision for loan losses 2,740 1,000 4,000 2,100 Net interest income after provision for loan losses 7,293 9,725 7,359 9,171 Total noninterest income 1,074 1,495 1,811 1,610 Total noninterest expense 7,252 7,689 7,022 7,825 Income before income taxes 1,115 3,531 2,148 2,956 Income taxes 74 565 295 467 Net income $ 1,041 $ 2,966 $ 1,853 $ 2,489 Per share data: Net income Basic $ 0.16 $ 0.47 $ 0.29 $ 0.39 Diluted 0.16 0.46 0.29 0.39 Average shares outstanding: Basic 6,417,109 6,369,467 6,376,291 6,378,706 Diluted 6,429,443 6,388,118 6,385,765 6,397,681 (Dollar amounts in thousands) Three Months Ended March 31, June 30, September 30, December 31, 2019 2019 2019 2019 Total interest and dividend income $ 13,484 $ 13,720 $ 13,885 $ 13,436 Total interest expense 3,254 3,451 3,307 3,128 Net interest income 10,230 10,269 10,578 10,308 Provision for loan losses 240 110 80 460 Net interest income after provision for loan losses 9,990 10,159 10,498 9,848 Total noninterest income 1,132 1,299 1,105 1,305 Total noninterest expense 7,500 7,482 7,673 7,378 Income before income taxes 3,622 3,976 3,930 3,775 Income taxes 611 686 661 634 Net income $ 3,011 $ 3,290 $ 3,269 $ 3,141 Per share data: Net income Basic $ 0.46 $ 0.51 $ 0.51 $ 0.48 Diluted 0.46 0.50 0.51 0.48 Average shares outstanding: Basic 6,498,278 6,502,508 6,458,258 6,423,543 Diluted 6,510,568 6,514,946 6,479,066 6,455,387

Note 1 - Summary of Significa_2

Note 1 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Number of Branches	16
Servicing Asset at Fair Value, Amount, Ending Balance	$ 92,300	$ 70,800
Goodwill, Impairment Loss	$ 0	$ 0
Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	10 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	20 years
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	40 years

Note 2 - Revenue Recognition (D

Note 2 - Revenue Recognition (Details Textual)	12 Months Ended
	Dec. 31, 2020
Revenue from Interest Income and Noninterest Income, Percent	92.40%

Note 2 - Revenue Recognition -

Note 2 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($)		3 Months Ended								12 Months Ended
		Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Investment securities gains on sale, net	[1]									$ 0	$ 194,000
Gain on equity securities	[1]									(101,000)	94,000
Earnings on bank-owned life insurance	[1]									427,000	431,000
Gain on sale of loans	[1]									1,487,000	433,000
Revenue from investment services	[2]									526,000	528,000
Other income										1,112,000	975,000
Total noninterest income		$ 1,610,000	$ 1,811,000	$ 1,495,000	$ 1,074,000	$ 1,305,000	$ 1,105,000	$ 1,299,000	$ 1,132,000	5,990,000	4,841,000
Net gain on other real estate owned										(253,000)	(123,000)
Overdraft Fees [Member]
Noninterest income revenue										665,000	841,000
ATM Banking Fees [Member]
Noninterest income revenue										1,061,000	932,000
Service Charge and Other Fees [Member]
Noninterest income revenue										$ 813,000	$ 413,000
[1]	Not within scope of ASC 606
[2]	From services offered by the Company through it's servicing partnership with LPL Financial

Note 3 - Earnings Per Share (De

Note 3 - Earnings Per Share (Details Textual) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)	12,150	14,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance (in dollars per share)	$ 8.78	$ 8.78	$ 8.78
Treasury Stock, Shares, Ending Balance (in shares)	929,362	871,162
Treasury Stock, Shares, Acquired (in shares)	58,200	98,832
Employee Stock Option and Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	67,295	0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)	67,634	56,066

Note 3 - Earnings Per Share - S

Note 3 - Earnings Per Share - Shares Used in Calculation of Earnings Per Share (Details) - shares	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Weighted-average common shares issued (in shares)									7,302,845	7,286,554
Average treasury stock shares (in shares)									(917,495)	(816,146)
Weighted-average common shares and common stock equivalents used to calculate basic earnings per share (in shares)	6,378,706	6,376,291	6,369,467	6,417,109	6,423,543	6,458,258	6,502,508	6,498,278	6,385,350	6,470,408
Additional common stock equivalents (stock options and restricted stock) used to calculate diluted earnings per share (in shares)									19,174	32,398
Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share (in shares)	6,397,681	6,385,765	6,388,118	6,429,443	6,455,387	6,479,066	6,514,946	6,510,568	6,404,524	6,502,806

Note 4 - Investment and Equit_3

Note 4 - Investment and Equity Securities (Details Textual)		12 Months Ended
		Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Equity Securities, FV-NI		$ 609,000	$ 710,000
Equity Securities, FV-NI, Unrealized Gain (Loss), Total	[1]	(101,000)	94,000
Equity Securities, FV-NI, Realized Gain (Loss), Total		0	0
Security Owned and Pledged as Collateral, Fair Value, Total		71,100,000	55,600,000
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax, Total		$ 0	41,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions		10
Available-for-sale Securities, Percentage of Portfolio		81.40%
Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale, Total		$ 0	$ 0
[1]	Not within scope of ASC 606

Note 4 - Investment and Equit_4

Note 4 - Investment and Equity Securities - Amortized Cost and Fair Values of Securities Available for Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Amortized cost	$ 108,937	$ 103,401
Gross unrealized gains	5,435	2,466
Gross unrealized losses	(12)	(134)
Investment securities available for sale, at fair value	114,360	105,733
Subordinated Debt Securities [Member]
Amortized cost	21,050	4,000
Gross unrealized gains	254	126
Gross unrealized losses	(7)	0
Investment securities available for sale, at fair value	21,297	4,126
Taxable Municipal Bonds [Member]
Amortized cost	500	500
Gross unrealized gains	2	1
Gross unrealized losses	0	0
Investment securities available for sale, at fair value	502	501
Nontaxable Municipal Bonds [Member]
Amortized cost	73,157	80,436
Gross unrealized gains	4,643	2,065
Gross unrealized losses	0	(25)
Investment securities available for sale, at fair value	77,800	82,476
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Amortized cost	14,230	18,465
Gross unrealized gains	536	274
Gross unrealized losses	(5)	(109)
Investment securities available for sale, at fair value	$ 14,761	$ 18,630

Note 4 - Investment and Equit_5

Note 4 - Investment and Equity Securities - Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Due in one year or less, amortized costs	$ 1,556
Due in one year or less, fair value	1,577
Due after one year through five years, amortized costs	1,701
Due after one year through five years, fair value	1,738
Due after five years through ten years, amortized costs	28,767
Due after five years through ten years, fair value	29,236
Due after ten years, amortized costs	76,913
Due after ten years, fair value	81,809
Amortized costs	108,937	$ 103,401
Fair Value	$ 114,360	$ 105,733

Note 4 - Investment and Equit_6

Note 4 - Investment and Equity Securities - Sales of Available for Sale Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Proceeds from sales	$ 0	$ 12,324
Gross realized gains	0	227
Gross realized losses	$ 0	$ (33)

Note 4 - Investment and Equit_7

Note 4 - Investment and Equity Securities - Gross Unrealized Losses and Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Less than Twelve Months, Fair Value	$ 6,991	$ 5,733
Less than Twelve Months, Gross Unrealized Losses	(12)	(27)
Twelve Months or Greater, Fair Value	0	8,223
Twelve Months or Greater, Gross Unrealized Losses	0	(107)
Total, Fair Value	6,991	13,956
Total, Gross Unrealized Losses	(12)	(134)
Subordinated Debt Securities [Member]
Less than Twelve Months, Fair Value	4,243
Less than Twelve Months, Gross Unrealized Losses	(7)
Twelve Months or Greater, Fair Value	0
Twelve Months or Greater, Gross Unrealized Losses	0
Total, Fair Value	4,243
Total, Gross Unrealized Losses	(7)
Nontaxable Municipal Bonds [Member]
Less than Twelve Months, Fair Value		4,324
Less than Twelve Months, Gross Unrealized Losses		(25)
Twelve Months or Greater, Fair Value		0
Twelve Months or Greater, Gross Unrealized Losses		0
Total, Fair Value		4,324
Total, Gross Unrealized Losses		(25)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Less than Twelve Months, Fair Value	2,748	1,409
Less than Twelve Months, Gross Unrealized Losses	(5)	(2)
Twelve Months or Greater, Fair Value	0	8,223
Twelve Months or Greater, Gross Unrealized Losses	0	(107)
Total, Fair Value	2,748	9,632
Total, Gross Unrealized Losses	$ (5)	$ (109)

Note 5 - Loans and Related Al_3

Note 5 - Loans and Related Allowance for Loan and Lease Losses (Details Textual)	3 Months Ended								12 Months Ended
	Dec. 31, 2020USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Loans and Leases Receivable, Net of Deferred Income, Total	$ 1,104,085,000				$ 984,258,000				$ 1,104,085,000	$ 984,258,000
Loans and Leases Receivable, Deferred Income, Total	4,400,000				1,300,000				4,400,000	1,300,000
Financing Receivable, Troubled Debt Restructuring	2,900,000				3,600,000				2,900,000	3,600,000
Financing Receivable, Allowance for Credit Loss, Writeoff									$ 45,000	33,000
Financing Receivable, Troubled Debt Restructuring, Subsequent Default										$ 36,000
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts									0	0
Number of Days Past Due (Day)									90 days
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans									$ 126,000	$ 377,000
Allowance for Loan and Lease Losses, Write-offs									3,839,000	1,809,000
Provision for Loan and Lease Losses, Total	2,100,000	$ 4,000,000	$ 1,000,000	$ 2,740,000	460,000	$ 80,000	$ 110,000	$ 240,000	9,840,000	890,000
Threshold For Loans Evaluated For Impairment [Member]
Loans and Leases Receivable, before Fees, Gross	500,000								500,000
Threshold For Loans Evaluated For Impairment [Member] | Outside Consultant [Member]
Loans and Leases Receivable, before Fees, Gross	250,000								250,000
Threshold For Loans Evaluated For Impairment [Member] | Criticized Relationships [Member]
Financing Receivable, before Allowance for Credit Loss, Total	125,000								125,000
Commercial And Industrial [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	232,044,000				89,527,000				232,044,000	89,527,000
Allowance for Loan and Lease Losses, Write-offs									245,000	519,000
Provision for Loan and Lease Losses, Total									848,000	(76,000)
Commercial And Industrial [Member] | Provision Fluctuation [Member]
Allowance for Loan and Lease Losses, Write-offs									245,000	438,000
Commercial Real Estate Portfolio Segment [Member] | Provision Fluctuation [Member]
Allowance for Loan and Lease Losses, Write-offs									3,000,000
Residential Portfolio Segment [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	233,995,000				234,798,000				233,995,000	234,798,000
Allowance for Loan and Lease Losses, Write-offs									62,000	361,000
Provision for Loan and Lease Losses, Total									977,000	280,000
Residential Portfolio Segment [Member] | Provision Fluctuation [Member]
Allowance for Loan and Lease Losses, Write-offs									62,000	360,000
Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	9,823,000				$ 14,411,000				9,823,000	14,411,000
Allowance for Loan and Lease Losses, Write-offs									405,000	735,000
Provision for Loan and Lease Losses, Total									375,000	628,000
Consumer Portfolio Segment [Member] | Provision Fluctuation [Member]
Allowance for Loan and Lease Losses, Write-offs									383,000	$ 566,000
Small Business Administration (SBA), CARES Act, Paycheck Protection Program [Member]
Loans and Leases Receivable, Deferred Income, Total	2,700,000								2,700,000
Small Business Administration (SBA), CARES Act, Paycheck Protection Program [Member] | Commercial And Industrial [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	$ 116,100,000								$ 116,100,000
Financing Receivable, Allowance for Credit Losses, Percentage of Portfolio	0.40%								0.40%
Financing Receivable, Allowance for Credit Loss, Ending Balance	$ 464,000								$ 464,000
Provision for Loan and Lease Losses, Total									$ 464,000

Note 5 - Loans and Related Al_4

Note 5 - Loans and Related Allowance for Loan and Lease Losses - Primary Segments of the Loan Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Individually evaluated for impairment	$ 8,087	$ 13,070
Collectively evaluated for impairment	1,095,998	971,188
Loans and Leases Receivable, Net of Deferred Income, Total	1,104,085	984,258
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Individually evaluated for impairment	1,565	3,474
Collectively evaluated for impairment	101,556	98,912
Loans and Leases Receivable, Net of Deferred Income, Total	103,121	102,386
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Individually evaluated for impairment	4,123	7,084
Collectively evaluated for impairment	305,301	295,096
Loans and Leases Receivable, Net of Deferred Income, Total	309,424	302,180
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	39,562	62,028
Loans and Leases Receivable, Net of Deferred Income, Total	39,562	62,028
Residential Portfolio Segment [Member]
Individually evaluated for impairment	1,319	1,278
Collectively evaluated for impairment	232,676	233,520
Loans and Leases Receivable, Net of Deferred Income, Total	233,995	234,798
Commercial And Industrial [Member]
Individually evaluated for impairment	834	882
Collectively evaluated for impairment	231,210	88,645
Loans and Leases Receivable, Net of Deferred Income, Total	232,044	89,527
Home Equity Lines of Credit [Member]
Individually evaluated for impairment	246	351
Collectively evaluated for impairment	112,297	111,897
Loans and Leases Receivable, Net of Deferred Income, Total	112,543	112,248
Construction and Other [Member]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	63,573	66,680
Loans and Leases Receivable, Net of Deferred Income, Total	63,573	66,680
Consumer Portfolio Segment [Member]
Individually evaluated for impairment	0	1
Collectively evaluated for impairment	9,823	14,410
Loans and Leases Receivable, Net of Deferred Income, Total	$ 9,823	$ 14,411

Note 5 - Loans and Related Al_5

Note 5 - Loans and Related Allowance for Loan and Lease Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Individually evaluated for impairment											$ 490	$ 660
Collectively evaluated for impairment											12,969	6,108
Less: allowance for loan and lease losses	$ 13,459			$ 6,768	$ 6,768			$ 7,428	$ 6,768	$ 7,428	13,459	6,768
Beginning balance				6,768				7,428	6,768	7,428
Charge-offs									(3,839)	(1,809)
Recoveries									690	259
Provision	2,100	$ 4,000	$ 1,000	2,740	460	$ 80	$ 110	240	9,840	890
Ending balance	13,459				6,768				13,459	6,768
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Individually evaluated for impairment											10	45
Collectively evaluated for impairment											1,332	756
Less: allowance for loan and lease losses	1,342			801	801			1,315	801	1,315	1,342	801
Beginning balance				801				1,315	801	1,315
Charge-offs									(50)	(32)
Recoveries									17	5
Provision									574	(487)
Ending balance	1,342				801				1,342	801
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Individually evaluated for impairment											371	582
Collectively evaluated for impairment											6,446	2,800
Less: allowance for loan and lease losses	6,817			3,382	3,382			2,862	3,382	2,862	6,817	3,382
Beginning balance				3,382				2,862	3,382	2,862
Charge-offs									(3,022)	0
Recoveries									74	12
Provision									6,383	508
Ending balance	6,817				3,382				6,817	3,382
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Individually evaluated for impairment											0	0
Collectively evaluated for impairment											461	340
Less: allowance for loan and lease losses	461			340	340			474	340	474	461	340
Beginning balance				340				474	340	474
Charge-offs									0	0
Recoveries									0	0
Provision									121	(134)
Ending balance	461				340				461	340
Residential Portfolio Segment [Member]
Individually evaluated for impairment											20	28
Collectively evaluated for impairment											1,663	698
Less: allowance for loan and lease losses	1,683			726	726			761	726	761	1,683	726
Beginning balance				726				761	726	761
Charge-offs									(62)	(361)
Recoveries									42	46
Provision									977	280
Ending balance	1,683				726				1,683	726
Commercial And Industrial [Member]
Individually evaluated for impairment											48	3
Collectively evaluated for impairment											1,305	453
Less: allowance for loan and lease losses	1,353			456	456			969	456	969	1,353	456
Beginning balance				456				969	456	969
Charge-offs									(245)	(519)
Recoveries									294	82
Provision									848	(76)
Ending balance	1,353				456				1,353	456
Home Equity Lines of Credit [Member]
Individually evaluated for impairment											41	2
Collectively evaluated for impairment											1,364	930
Less: allowance for loan and lease losses	1,405			932	932			820	932	820	1,405	932
Beginning balance				932				820	932	820
Charge-offs									(55)	(162)
Recoveries									84	32
Provision									444	242
Ending balance	1,405				932				1,405	932
Construction and Other [Member]
Individually evaluated for impairment											0	0
Collectively evaluated for impairment											378	103
Less: allowance for loan and lease losses	378			103	103			100	103	100	378	103
Beginning balance				103				100	103	100
Charge-offs									0	0
Recoveries									157	74
Provision									118	(71)
Ending balance	378				103				378	103
Consumer Portfolio Segment [Member]
Individually evaluated for impairment											0	0
Collectively evaluated for impairment											20	28
Less: allowance for loan and lease losses	20			28	28			127	28	127	$ 20	$ 28
Beginning balance				$ 28				$ 127	28	127
Charge-offs									(405)	(735)
Recoveries									22	8
Provision									375	628
Ending balance	$ 20				$ 28				$ 20	$ 28

Note 5 - Loans and Related Al_6

Note 5 - Loans and Related Allowance for Loan and Lease Losses - Impaired Loans by Class (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Recorded investment, with no related allowance	$ 3,501	$ 7,344
Unpaid principal balance, with no related allowance	4,104	8,199
Recorded investment, with related allowance	4,586	5,726
Unpaid principal balance, with related allowance	4,863	5,787
Related allowance	490	660
Recorded investment	8,087	13,070
Unpaid principal balance	8,967	13,986
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Recorded investment, with no related allowance	1,118	1,772
Unpaid principal balance, with no related allowance	1,142	1,772
Recorded investment, with related allowance	447	1,702
Unpaid principal balance, with related allowance	447	1,713
Related allowance	10	45
Recorded investment	1,565	3,474
Unpaid principal balance	1,589	3,485
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Recorded investment, with no related allowance	801	3,845
Unpaid principal balance, with no related allowance	801	3,845
Recorded investment, with related allowance	3,322	3,239
Unpaid principal balance, with related allowance	3,596	3,239
Related allowance	371	582
Recorded investment	4,123	7,084
Unpaid principal balance	4,397	7,084
Residential Portfolio Segment [Member]
Recorded investment, with no related allowance	941	759
Unpaid principal balance, with no related allowance	1,013	829
Recorded investment, with related allowance	378	519
Unpaid principal balance, with related allowance	378	569
Related allowance	20	28
Recorded investment	1,319	1,278
Unpaid principal balance	1,391	1,398
Commercial And Industrial [Member]
Recorded investment, with no related allowance	561	747
Unpaid principal balance, with no related allowance	1,056	1,524
Recorded investment, with related allowance	273	135
Unpaid principal balance, with related allowance	276	135
Related allowance	48	3
Recorded investment	834	882
Unpaid principal balance	1,332	1,659
Home Equity Lines of Credit [Member]
Recorded investment, with no related allowance	80	220
Unpaid principal balance, with no related allowance	92	228
Recorded investment, with related allowance	166	131
Unpaid principal balance, with related allowance	166	131
Related allowance	41	2
Recorded investment	246	351
Unpaid principal balance	$ 258	359
Consumer Portfolio Segment [Member]
Recorded investment, with no related allowance		1
Unpaid principal balance, with no related allowance		1
Related allowance		0
Recorded investment		1
Unpaid principal balance		$ 1

Note 5 - Loans and Related Al_7

Note 5 - Loans and Related Allowance for Loan and Lease Losses - Additional Information on Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Average recorded investment	$ 14,297	$ 14,589
Interest income recognized	358	567
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Average recorded investment	2,851	3,808
Interest income recognized	72	176
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Average recorded investment	8,815	6,558
Interest income recognized	184	199
Residential Portfolio Segment [Member]
Average recorded investment	1,247	1,626
Interest income recognized	52	49
Commercial And Industrial [Member]
Average recorded investment	1,076	1,770
Interest income recognized	42	141
Home Equity Lines of Credit [Member]
Average recorded investment	308	177
Interest income recognized	8	2
Construction and Other [Member]
Average recorded investment	0	648
Interest income recognized	0	0
Consumer Portfolio Segment [Member]
Average recorded investment	0	2
Interest income recognized	$ 0	$ 0

Note 5 - Loans and Related Al_8

Note 5 - Loans and Related Allowance for Loan and Lease Losses - Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Pre-modification outstanding recorded investment	$ 139	$ 782
Post-modification outstanding recorded investment	$ 138	$ 844
Commercial And Industrial [Member]
Number of contracts	2	3
Pre-modification outstanding recorded investment	$ 25	$ 488
Post-modification outstanding recorded investment	$ 24	$ 490
Residential Portfolio Segment [Member]
Number of contracts	1	2
Pre-modification outstanding recorded investment	$ 114	$ 123
Post-modification outstanding recorded investment	$ 114	$ 178
Home Equity Lines of Credit [Member]
Number of contracts		4
Pre-modification outstanding recorded investment		$ 171
Post-modification outstanding recorded investment		$ 176
Extended Maturity [Member] | Commercial And Industrial [Member]
Number of contracts	2	3
Extended Maturity [Member] | Residential Portfolio Segment [Member]
Number of contracts	1	0
Extended Maturity [Member] | Home Equity Lines of Credit [Member]
Number of contracts		4
Other Restructurings [Member] | Commercial And Industrial [Member]
Number of contracts	0	0
Other Restructurings [Member] | Residential Portfolio Segment [Member]
Number of contracts	0	2
Other Restructurings [Member] | Home Equity Lines of Credit [Member]
Number of contracts		0

Note 5 - Loans and Related Al_9

Note 5 - Loans and Related Allowance for Loan and Lease Losses - Classes of the Loan Portfolio Summarized by Credit Quality (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Loans	$ 1,104,085	$ 984,258
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Loans	103,121	102,386
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Loans	309,424	302,180
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Loans	39,562	62,028
Residential Portfolio Segment [Member]
Loans	233,995	234,798
Commercial And Industrial [Member]
Loans	232,044	89,527
Home Equity Lines of Credit [Member]
Loans	112,543	112,248
Construction and Other [Member]
Loans	63,573	66,680
Consumer Portfolio Segment [Member]
Loans	9,823	14,411
Pass [Member]
Loans	1,030,290	957,939
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Loans	93,939	95,518
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Loans	258,974	292,191
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Loans	39,562	62,028
Pass [Member] | Residential Portfolio Segment [Member]
Loans	230,944	231,633
Pass [Member] | Commercial And Industrial [Member]
Loans	227,765	84,136
Pass [Member] | Home Equity Lines of Credit [Member]
Loans	111,208	111,354
Pass [Member] | Construction and Other [Member]
Loans	58,082	66,680
Pass [Member] | Consumer Portfolio Segment [Member]
Loans	9,816	14,399
Special Mention [Member]
Loans	10,132	11,028
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Loans	7,084	3,951
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Loans	983	3,038
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Loans	0	0
Special Mention [Member] | Residential Portfolio Segment [Member]
Loans	265	420
Special Mention [Member] | Commercial And Industrial [Member]
Loans	1,800	3,619
Special Mention [Member] | Home Equity Lines of Credit [Member]
Loans	0	0
Special Mention [Member] | Construction and Other [Member]
Loans	0	0
Special Mention [Member] | Consumer Portfolio Segment [Member]
Loans	0	0
Substandard [Member]
Loans	63,663	15,291
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Loans	2,098	2,917
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Loans	49,467	6,951
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Loans	0	0
Substandard [Member] | Residential Portfolio Segment [Member]
Loans	2,786	2,745
Substandard [Member] | Commercial And Industrial [Member]
Loans	2,479	1,772
Substandard [Member] | Home Equity Lines of Credit [Member]
Loans	1,335	894
Substandard [Member] | Construction and Other [Member]
Loans	5,491	0
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans	7	12
Doubtful [Member]
Loans	0	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Loans	0	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Loans	0	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Loans	0	0
Doubtful [Member] | Residential Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Commercial And Industrial [Member]
Loans	0	0
Doubtful [Member] | Home Equity Lines of Credit [Member]
Loans	0	0
Doubtful [Member] | Construction and Other [Member]
Loans	0	0
Doubtful [Member] | Consumer Portfolio Segment [Member]
Loans	$ 0	$ 0

Note 5 - Loans and Related A_10

Note 5 - Loans and Related Allowance for Loan and Lease Losses - Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Loans, current balance	$ 1,095,570	$ 975,566
Loans, past due	8,515	8,692
Loans	1,104,085	984,258
Financial Asset, 30 to 59 Days Past Due [Member]
Loans, past due	5,121	2,589
Financial Asset, 60 to 89 Days Past Due [Member]
Loans, past due	1,795	345
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, past due	1,599	5,758
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Loans, current balance	102,587	101,264
Loans, past due	534	1,122
Loans	103,121	102,386
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans, past due	418	64
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans, past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, past due	116	1,058
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Loans, current balance	305,613	298,941
Loans, past due	3,811	3,239
Loans	309,424	302,180
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans, past due	1,844	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans, past due	1,373	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, past due	594	3,239
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Loans, current balance	39,562	62,028
Loans, past due	0	0
Loans	39,562	62,028
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans, past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans, past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, past due	0	0
Residential Portfolio Segment [Member]
Loans, current balance	230,996	232,518
Loans, past due	2,999	2,280
Loans	233,995	234,798
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans, past due	2,364	1,439
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans, past due	95	34
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, past due	540	807
Commercial And Industrial [Member]
Loans, current balance	231,534	88,965
Loans, past due	510	562
Loans	232,044	89,527
Commercial And Industrial [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans, past due	260	190
Commercial And Industrial [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans, past due	219	66
Commercial And Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, past due	31	306
Home Equity Lines of Credit [Member]
Loans, current balance	112,325	111,792
Loans, past due	218	456
Loans	112,543	112,248
Home Equity Lines of Credit [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans, past due	120	274
Home Equity Lines of Credit [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans, past due	0	29
Home Equity Lines of Credit [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, past due	98	153
Construction and Other [Member]
Loans, current balance	63,529	66,680
Loans, past due	44	0
Loans	63,573	66,680
Construction and Other [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans, past due	44	0
Construction and Other [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans, past due	0	0
Construction and Other [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, past due	0	0
Consumer Portfolio Segment [Member]
Loans, current balance	9,424	13,378
Loans, past due	399	1,033
Loans	9,823	14,411
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans, past due	71	622
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans, past due	108	216
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, past due	$ 220	$ 195

Note 5 - Loans and Related A_11

Note 5 - Loans and Related Allowance for Loan and Lease Losses - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Loans, current balance	$ 7,858	$ 8,879
Loans, past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Loans, current balance	458	1,162
Loans, past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Loans, current balance	3,758	3,289
Loans, past due	0	0
Residential Portfolio Segment [Member]
Loans, current balance	2,487	2,576
Loans, past due	0	0
Commercial And Industrial [Member]
Loans, current balance	509	946
Loans, past due	0	0
Home Equity Lines of Credit [Member]
Loans, current balance	422	709
Loans, past due	0	0
Consumer Portfolio Segment [Member]
Loans, current balance	224	197
Loans, past due	$ 0	$ 0

Note 6 - Premises and Equipme_3

Note 6 - Premises and Equipment (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Depreciation, Total	$ 1.3	$ 1

Note 6 - Premises and Equipme_4

Note 6 - Premises and Equipment - Major Classifications of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Land and land improvements	$ 2,963	$ 2,920
Building and leasehold improvements	16,239	15,836
Furniture, fixtures, and equipment	9,395	9,357
Financing right-of-use assets	4,737	4,012
Total premises and equipment	33,334	32,125
Less accumulated depreciation and amortization	15,001	14,251
Total premises and equipment, net	$ 18,333	$ 17,874

Note 7 - Goodwill and Intangi_3

Note 7 - Goodwill and Intangible Assets (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill, Ending Balance	$ 15,071,000	$ 15,071,000
Finite-Lived Core Deposits, Gross	1,700,000	2,100,000
Amortization of Intangible Assets, Total	332,000	341,000
Core Deposits [Member]
Finite-Lived Intangible Assets, Accumulated Amortization	$ 1,700,000	$ 1,400,000
Finite-Lived Intangible Asset, Useful Life (Year)	10 years

Note 7 - Goodwill and Intangi_4

Note 7 - Goodwill and Intangible Assets - Estimated Aggregate Future Amortization Expense for Core Deposit Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
2023	$ 296
2024	281
2025	264
Total	1,724	$ 2,056
Core Deposits [Member]
2021	321
2022	309
Thereafter	$ 253

Note 7 - Goodwill and Intangi_5

Note 7 - Goodwill and Intangible Assets - Activity for Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Beginning of year	$ 390	$ 357
Additions	276	67
Amortized to expense	(190)	(34)
End of year	$ 476	$ 390

Note 8 - Accrued Interest Rec_3

Note 8 - Accrued Interest Receivable and Other Assets (Details Textual) $ in Millions	Dec. 31, 2020USD ($)
Related Party Deposit Assets	$ 38.6

Note 8 - Accrued Interest Rec_4

Note 8 - Accrued Interest Receivable and Other Assets - Components of Accrued Interest Receivable and Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Restricted stock	$ 5,057	$ 3,848
Deferred tax asset, net	1,073	374
Operating right-of-use assets	742	903
Other	1,554	1,946
Total	13,636	10,542
Investment Securities [Member]
Accrued interest	854	753
Loans [Member]
Accrued interest	$ 4,356	$ 2,718

Note 9 - Deposits (Details Text

Note 9 - Deposits (Details Textual) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Time Deposits, at or Above FDIC Insurance Limit	$ 72.2	$ 126.6

Note 9 - Deposits - Scheduled M

Note 9 - Deposits - Scheduled Maturities of Time Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
2021	$ 216,732
2022	38,746
2023	20,419
2024	12,854
2025	6,999
Total	$ 295,750	$ 368,800

Note 10 - Short-term Borrowin_3

Note 10 - Short-term Borrowings (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Long-term Line of Credit, Total	$ 0	$ 0
Federal Home Loan Bank Advances, Additional Borrowing Capacity	401,700	$ 87,000
Line of Credit 1 [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 6,000
Line of Credit Facility, Interest Rate During Period	3.50%
Line of Credit 2 [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 10,000
Line of Credit Facility, Interest Rate During Period	3.40%
Line of Credit 3 [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 4,000
Line of Credit Facility, Interest Rate During Period	3.64%

Note 10 - Short-term Borrowin_4

Note 10 - Short-term Borrowings - Outstanding Balances and Related Information of Short-term Borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Balance at year-end	$ 0	$ 5,075	$ 90,398
Average balance outstanding	22,637	14,808	42,231
Maximum month-end balance	$ 62,329	$ 92,000	$ 101,857
Weighted-average rate at year-end		1.66%	2.53%
Weighted-average rate during the year	0.35%	2.49%	1.99%

Note 11 - Other Borrowings (Det

Note 11 - Other Borrowings (Details Textual) - USD ($)	1 Months Ended
	Dec. 31, 2006	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Advances from Federal Home Loan Banks, Total		$ 0
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds		401,700,000
Stock Issued During Period, Value, New Issues	$ 248,000
Notes Payable, Total	$ 8,300,000
Finance Lease, Liability, Total		4,839,000
Short-term Debt, Total		0	$ 5,075,000		$ 90,398,000
PPPLF Advances Under the CARES Act [Member] | Federal Reserve Bank Advances [Member]
Short-term Debt, Total		$ 4,000,000
Accounting Standards Update 2016-02 [Member]
Finance Lease, Liability, Total				$ 3,800,000
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	1.67%
Mandatorily Redeemable Securities [Member] | Special Purpose Entity [Member]
Securities Sold under Agreements to Repurchase, Total	$ 8,000,000

Note 11 - Other Borrowings - Ot

Note 11 - Other Borrowings - Other Borrowings (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Other borrowings		$ 17,038	$ 12,750
PPPLF Advances Under the CARES Act [Member]
Maturity range, minimum	[1]	Apr. 13, 2022
Maturity range, maximum	[1]	Apr. 13, 2022
Weighted-average interest rate	[1]	0.35%
Other borrowings	[1]	$ 3,951	0
Minimum [Member]
Stated interest rate
Minimum [Member] | PPPLF Advances Under the CARES Act [Member]
Stated interest rate	[1]	0.35%
Maximum [Member]
Stated interest rate
Maximum [Member] | PPPLF Advances Under the CARES Act [Member]
Stated interest rate	[1]	0.35%
Fixed Rate Amortizing [Member]
Maturity range, minimum	[2]	Jul. 1, 2025
Maturity range, maximum	[2]	Oct. 1, 2028
Weighted-average interest rate	[2]	4.06%
Other borrowings	[2]	$ 0	404
Fixed Rate Amortizing [Member] | Minimum [Member]
Stated interest rate	[2]	4.02%
Fixed Rate Amortizing [Member] | Maximum [Member]
Stated interest rate	[2]	4.47%
Finance Lease Liabilities [Member]
Maturity range, minimum		Sep. 30, 2034
Maturity range, maximum		Jun. 1, 2040
Weighted-average interest rate		2.64%
Other borrowings		$ 4,839	4,098
Finance Lease Liabilities [Member] | Minimum [Member]
Stated interest rate		1.89%
Finance Lease Liabilities [Member] | Maximum [Member]
Stated interest rate		3.51%
Junior Subordinated Debt [Member]
Maturity range, minimum		Dec. 21, 2037
Maturity range, maximum		Dec. 21, 2037
Weighted-average interest rate		2.56%
Other borrowings		$ 8,248	$ 8,248
Junior Subordinated Debt [Member] | Minimum [Member]
Stated interest rate		1.88%
Junior Subordinated Debt [Member] | Maximum [Member]
Stated interest rate		3.61%
[1]	PPPLF (Paycheck Protection Program Liquidity Facility) borrowings were used to fund PPP loans
[2]	There were no FHLB borrowings as of December 31, 2020. Maturity range and interest rates are as of December 31, 2019.

Note 11 - Other Borrowings - Ma

Note 11 - Other Borrowings - Maturities of Other Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
2021, amount	$ 257
2021, weighted-average rate	2.64%
2022, amount	$ 4,216
2022, weighted-average rate	0.68%
2023, amount	$ 272
2023, weighted-average rate	2.64%
2024, amount	$ 279
2024, weighted-average rate	2.64%
2025, amount	$ 286
2025, weighted-average rate	2.64%
Beyond 2025, amount	$ 11,728
Beyond 2025, weighted-average rate	2.01%
Total, amount	$ 17,038	$ 12,750
Total, weighted-average rate	1.62%

Note 12 - Accrued Interest Pa_3

Note 12 - Accrued Interest Payable and Other Liabilities - Components of Accrued Interest Payable and Other Liabilities (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Accrued interest payable	$ 580,000	$ 917,000
Accrued directors' benefits	1,587,000	1,470,000
Accrued salary and benefits expense	1,410,000	1,451,000
Other	1,608,000	1,288,000
Total	5,931,000	6,032,000
Accrued Interest Payable and Other Liabilities [Member]
Operating lease liabilities	$ 746,000	$ 906,000

Note 13 - Income Taxes (Details

Note 13 - Income Taxes (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred Tax Assets, Valuation Allowance, Total	$ 0	$ 0

Note 13 - Income Taxes - The Pr

Note 13 - Income Taxes - The Provision (Benefit) for Federal Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Current payable									$ 2,749	$ 2,265
Deferred income tax									(1,348)	327
Total provision	$ 467	$ 295	$ 565	$ 74	$ 634	$ 661	$ 686	$ 611	$ 1,401	$ 2,592

Note 13 - Income Taxes - Deferr

Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Allowance for loan and lease losses	$ 2,826	$ 1,288
Supplemental retirement plan	482	469
Investment security basis adjustment	18	18
Nonaccrual interest income	355	297
Accrued compensation	244	244
Deferred origination fees, net	0	30
Lease liability	1,173	1,051
Gross deferred tax assets	5,098	3,397
Deferred tax liabilities:
Premises and equipment	709	583
Net unrealized gain on AFS securities	1,139	490
Net unrealized gain on equity securities	41	62
FHLB stock dividends	139	139
Intangibles	414	378
Mortgage servicing rights	100	82
Deferred origination fees, net	50	0
Acquisition fair value adjustments	278	253
Right of use assets	1,151	1,032
Other	4	4
Gross deferred tax liabilities	4,025	3,023
Net deferred tax assets	$ 1,073	$ 374

Note 13 - Income Taxes - Tax Ra

Note 13 - Income Taxes - Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Provision at statutory rate, amount									$ 2,047	$ 3,214
Provision at statutory rate, percent									21.00%	21.00%
Tax-exempt income, amount									$ (669)	$ (647)
Tax-exempt income, percent									(6.90%)	(4.20%)
Nondeductible interest expense, amount									$ 16	$ 32
Nondeductible interest expense, percent									0.20%	0.20%
Stock-based compensation, amount									$ (4)	$ 0
Stock-based compensation, percent									0.00%	0.00%
Other, amount									$ 11	$ (7)
Other, percent									0.10%	(0.10%)
Total provision	$ 467	$ 295	$ 565	$ 74	$ 634	$ 661	$ 686	$ 611	$ 1,401	$ 2,592
Actual tax expense and effective rate, percent									14.40%	16.90%

Note 14 - Employee Benefits (De

Note 14 - Employee Benefits (Details Textual) - USD ($)	May 10, 2017	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2007
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value		$ 166,759	$ 251,068
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount		$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares)		2,350	200
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent		$ 581,000	$ 694,000
Share-based Payment Arrangement, Option [Member]
Payments For Stock Options Exercised		$ 18,000	$ 0
Restricted Stock [Member]
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total (in shares)		23,648	29,130
Share-based Payment Arrangement, Expense		$ 271,000	$ 184,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Average Total Shareholder Annual Return, Percentage		10.00%	10.00%
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount		$ 272,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		1 year 5 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value		$ 208,000	$ 265,000
Retirement Plan [Member]
Defined Contribution Plan Employer Voluntary Matching Bank Contribution		50.00%	50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay		6.00%	6.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		6 years
Defined Benefit Plan, Plan Assets, Contributions by Employer		$ 350,000	$ 319,000
Retirement Plan [Member] | Middlefield Banking Company [Member]
Defined Contribution Plan Annual Vesting Percentage		20.00%
Retirement Plan [Member] | Liberty Bank, N.A. [Member]
Deferred Compensation Arrangement with Individual, Requisite Service Period (Year)		3 years
Executive Deferred Compensation Plan [Member] | Middlefield Banking Company [Member]
Deferred Compensation Arrangement with Individual, Recorded Liability		$ 1,700,000	1,500,000
Defined Contribution Plan, Employer Discretionary Contribution Amount		$ 240,000	$ 260,000
Stock Option and Restricted Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)				320,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)				10 years
Shares, Outstanding, Ending Balance (in shares)		12,150
The 2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)	448,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)		386,188
Omnibus Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)		0	0
Share-based Payment Arrangement, Expensed and Capitalized, Amount, Total		$ 0	$ 265,000

Note 14 - Employee Benefits - S

Note 14 - Employee Benefits - Stock Option Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Outstanding (in shares)	14,500
Outstanding, weighted average exercise price (in dollars per share)	$ 8.78	$ 8.78
Exercised (in shares)	(2,350)
Exercised, weighted average exercise price (in dollars per share)		$ 8.78
Outstanding (in shares)	12,150	14,500
Outstanding, weighted average exercise price (in dollars per share)	$ 8.78	$ 8.78
Exercisable (in shares)	12,150
Exercisable, weighted average exercise price (in dollars per share)		$ 8.78

Note 14 - Employee Benefits - A

Note 14 - Employee Benefits - Activity Related to Restricted Stock Units Awarded (Details) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Nonvested (in shares)	56,066
Nonvested, weighted average grant date fair value per share (in dollars per share)	$ 23.51	$ 21.67
Granted (in shares)	22,574
Granted, weighted average grant date fair value per share (in dollars per share)		26.09
Vested (in shares)	(11,006)
Vested, weighted average grant date fair value per share (in dollars per share)		$ 19.35
Nonvested (in shares)	67,634	56,066
Nonvested, weighted average grant date fair value per share (in dollars per share)		$ 23.51
Expected to vest at December 31, 2020 (in shares)	18,622
Expected to vest at December 31, 2020 (in dollars per share)		$ 24.02

Note 15 - Commitments (Details

Note 15 - Commitments (Details Textual)	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Number of Branch Locations by Utilized Leases	7
Number of Production Offices by Utilized Leases	1
Lease, Right-of-Use Asset, Net	$ 5,500,000
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total	4,737,000	$ 4,012,000
Operating Lease, Right-of-Use Asset	742,000	903,000
Finance Lease, Liability, Total	4,839,000
Premises and Equipment, Net [Member]
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total	4,700,000
Accrued Interest Receivable and Other Assets [Member]
Operating Lease, Right-of-Use Asset	742,000
Other Borrowings [Member]
Finance Lease, Liability, Total	4,800,000
Accrued Interest Payable and Other Liabilities [Member]
Operating Lease, Liability, Total	$ 746,000	$ 906,000
Minimum [Member]
Lessee, Operating Lease, Remaining Term (Year)	1 year
Maximum [Member]
Lessee, Operating Lease, Remaining Term (Year)	20 years

Note 15 - Commitments - Outstan

Note 15 - Commitments - Outstanding Commitments and Contingent Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Commitments	$ 256,010	$ 262,195
Commitments to Extend Credit [Member]
Commitments	255,429	260,579
Financial Standby Letter of Credit [Member]
Commitments	$ 581	$ 1,616

Note 15 - Commitments - Leases

Note 15 - Commitments - Leases Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Finance lease cost, Amortization of right-of-use asset	$ 286	$ 360
Finance lease cost, Interest Expense	131	132
Finance lease cost, Other	27	57
Operating lease cost	213	245
Total lease cost	$ 657	$ 794

Note 15 - Commitments - Weighte

Note 15 - Commitments - Weighted Average Remaining Lease Term and Discount Rate Information (Details)	Dec. 31, 2020
Weighted-average term (years), Operating Lease (Year)	5 years 10 months 24 days
Weighted-average term (years), Fiance Lease (Year)	15 years 8 months 12 days
Weighted-average discount rate), Operating Lease	2.90%
Weighted-average discount rate, Fiance Lease	2.60%

Note 15 - Commitments - Maturit

Note 15 - Commitments - Maturities of Lease Liabilities (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
2021, operating	$ 169,000
2021, finance	383,000
2022, operating	169,000
2022, finance	385,000
2023, operating	169,000
2023, finance	385,000
2024, operating	133,000
2024, finance	385,000
2025, operating	25,000
2025, finance	385,000
2026 and thereafter, operating	149,000
2026 and thereafter, finance	4,100,000
Total undiscounted cash flows, operating	814,000
Total undiscounted cash flows, finance	6,023,000
Impact of present value discount, operating	(68,000)
Impact of present value discount, finance	(1,184,000)
Finance Lease, Liability, Total	4,839,000
Accrued Interest Payable and Other Liabilities [Member]
Operating Lease, Liability, Total	$ 746,000	$ 906,000

Note 16 - Regulatory Restrict_2

Note 16 - Regulatory Restrictions (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Reserves Required by Federal Reserve Bank	$ 0	$ 16,500
Percent of Common Stock	10.00%
Amount Available for Payment of Dividends	$ 16,500

Note 17 - Regulatory Capital -

Note 17 - Regulatory Capital - Capital Ratios (Details)	Dec. 31, 2020	Dec. 31, 2019
Leverage capital, adequately capitalized, ratio	0.0400	0.0400
Tier 1 risk based capital, adequately capitalized, ratio	0.0600	0.0600
Common equity tier 1 capital, adequately capitalized, ratio	4.50%	4.50%
Total risk based capital, adequately capitalized, ratio	0.0800	0.0800
Leverage capital, adequately capitalized plus capital conservation buffer, ratio	4.00%	4.00%
Tier 1 risk based capital, adequately capitalized plus capital conservation buffer, ratio	8.50%	8.50%
Common equity tier 1 capital, adequately capitalized plus capital conservation buffer, ratio	7.00%	7.00%
Total risk based capital, adequately capitalized plus capital conservation buffer, ratio	10.50%	10.50%
Middlefield Banking Company [Member]
Leverage capital, actual, ratio	0.0945	0.1035
Tier 1 risk based capital, actual, ratio	0.1147	0.1212
Common equity tier 1 capital, actual, ratio	11.47%	12.12%
Total risk based capital, actual, ratio	0.1268	0.1279
Leverage capital, well-capitalized, ratio (bank only)	0.0500	0.0500
Tier 1 risk based capital, well-capitalized, ratio (bank only)	0.0800	0.0800
Common equity tier 1 capital, well-capitalized, ratio (bank only)	6.50%	6.50%
Total risk based capital, well-capitalized, ratio (bank only)	0.1000	0.1000
Middlefield Banc Corp [Member]
Leverage capital, actual, ratio	0.1022	0.1023
Tier 1 risk based capital, actual, ratio	0.1168	0.1256
Common equity tier 1 capital, actual, ratio	10.96%	11.77%
Total risk based capital, actual, ratio	0.1288	0.1323

Note 18 - Fair Value Disclosu_3

Note 18 - Fair Value Disclosure Measurements (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Estimated Selling Costs of Impaired Loans	$ 838,000	$ 853,000

Note 18 - Fair Value Disclosu_4

Note 18 - Fair Value Disclosure Measurements - Assets Measured on a Recurring Basis (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Total debt securities	$ 114,360,000	$ 105,733,000
Equity securities in financial institutions	609,000	710,000
Investment securities available for sale, at fair value	114,360,000	105,733,000
Subordinated Debt Securities [Member]
Total debt securities	21,297,000	4,126,000
Investment securities available for sale, at fair value	21,297,000	4,126,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Total debt securities	14,761,000	18,630,000
Investment securities available for sale, at fair value	14,761,000	18,630,000
Fair Value, Recurring [Member]
Total debt securities	114,360,000	105,733,000
Equity securities in financial institutions	609,000	710,000
Total	114,969,000	106,443,000
Investment securities available for sale, at fair value	114,360,000	105,733,000
Fair Value, Recurring [Member] | Subordinated Debt Securities [Member]
Total debt securities	21,297,000	4,126,000
Investment securities available for sale, at fair value	21,297,000	4,126,000
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Total debt securities	78,302,000	82,977,000
Investment securities available for sale, at fair value	78,302,000	82,977,000
Fair Value, Recurring [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Total debt securities	14,761,000	18,630,000
Investment securities available for sale, at fair value	14,761,000	18,630,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Total debt securities	0	0
Equity securities in financial institutions	609,000	710,000
Total	609,000	710,000
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	114,360,000	105,733,000
Equity securities in financial institutions	0	0
Total	114,360,000	105,733,000
Investment securities available for sale, at fair value	114,360,000	105,733,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Subordinated Debt Securities [Member]
Total debt securities	21,297,000	4,126,000
Investment securities available for sale, at fair value	21,297,000	4,126,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member]
Total debt securities	78,302,000	82,977,000
Investment securities available for sale, at fair value	78,302,000	82,977,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Total debt securities	14,761,000	18,630,000
Investment securities available for sale, at fair value	14,761,000	18,630,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Total debt securities	0	0
Equity securities in financial institutions	0	0
Total	0	0
Investment securities available for sale, at fair value	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [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 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 18 - Fair Value Disclosu_5

Note 18 - Fair Value Disclosure Measurements - Assets Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Impaired loans	$ 8,087	$ 13,070
Fair Value, Nonrecurring [Member]
Impaired loans	4,111	5,166
Other real estate owned	6,992
Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]
Impaired loans	0	0
Other real estate owned	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]
Impaired loans	0	0
Other real estate owned	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Impaired loans	4,111	$ 5,166
Other real estate owned	$ 6,992

Note 18 - Fair Value Disclosu_6

Note 18 - Fair Value Disclosure Measurements - Additional Quantitative Information About Assets Measured at Fair Value on Non-recurring Basis (Details) - Fair Value, Nonrecurring [Member] $ in Thousands		Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Other real estate owned		$ 6,992
Fair Value, Inputs, Level 3 [Member]
Other real estate owned		6,992
Fair Value, Inputs, Level 3 [Member] | Appraisal of Collateral [Member]
Impaired loans, fair value estimate	[1]	4,111	$ 5,166
Other real estate owned	[1]	$ 6,992
Fair Value, Inputs, Level 3 [Member] | Appraisal of Collateral [Member] | Measurement Input, Appraised Value [Member]
Other real estate owned	[2]	0.199
Fair Value, Inputs, Level 3 [Member] | Appraisal of Collateral [Member] | Minimum [Member] | Measurement Input, Appraised Value [Member]
Impaired loans	[2]	0.176	0.403
Impaired loans	[2]	(0.176)	(0.403)
Fair Value, Inputs, Level 3 [Member] | Appraisal of Collateral [Member] | Maximum [Member] | Measurement Input, Appraised Value [Member]
Impaired loans	[2]	0.485	0.474
Impaired loans	[2]	(0.485)	(0.474)
Fair Value, Inputs, Level 3 [Member] | Appraisal of Collateral [Member] | Weighted Average [Member] | Measurement Input, Appraised Value [Member]
Impaired loans	[2]	0.227	0.418
Impaired loans	[2]	(0.227)	(0.418)
[1]	Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level III inputs which are not identifiable, less any associated allowance.
[2]	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 18 - Fair Value Disclosu_7

Note 18 - Fair Value Disclosure Measurements - Estimated Fair Value of the Company's Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Reported Value Measurement [Member]
Financial assets:
Cash and cash equivalents	$ 112,417	$ 35,113
Loans held for sale	878	1,220
Net loans	1,090,626	977,490
Bank-owned life insurance	16,938	16,511
Federal Home Loan Bank stock	5,057	3,848
Accrued interest receivable	5,210	3,471
Financial liabilities:
Deposits	1,225,200	1,020,843
Other borrowings	17,038	12,750
Accrued interest payable	580	917
Short-term borrowings		5,075
Estimate of Fair Value Measurement [Member]
Financial assets:
Cash and cash equivalents	112,417	35,113
Loans held for sale	878	1,220
Net loans	1,089,573	974,213
Bank-owned life insurance	16,938	16,511
Federal Home Loan Bank stock	5,057	3,848
Accrued interest receivable	5,210	3,471
Financial liabilities:
Deposits	1,229,101	1,023,236
Other borrowings	15,250	12,783
Accrued interest payable	580	917
Short-term borrowings		5,075
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Financial assets:
Cash and cash equivalents	112,417	35,113
Loans held for sale	0	0
Net loans	0	0
Bank-owned life insurance	16,938	16,511
Federal Home Loan Bank stock	5,057	3,848
Accrued interest receivable	5,210	3,471
Financial liabilities:
Deposits	929,450	652,043
Other borrowings	0	0
Accrued interest payable	580	917
Short-term borrowings		5,075
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Financial assets:
Cash and cash equivalents	0	0
Loans held for sale	878	1,220
Net loans	0	0
Bank-owned life insurance	0	0
Federal Home Loan Bank stock	0	0
Accrued interest receivable	0	0
Financial liabilities:
Deposits	0	0
Other borrowings	0	0
Accrued interest payable	0	0
Short-term borrowings		0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Financial assets:
Cash and cash equivalents	0	0
Loans held for sale	0	0
Net loans	1,089,573	974,213
Bank-owned life insurance	0	0
Federal Home Loan Bank stock	0	0
Accrued interest receivable	0	0
Financial liabilities:
Deposits	299,651	371,193
Other borrowings	15,250	12,783
Accrued interest payable	$ 0	0
Short-term borrowings		$ 0

Note 19 - Accumulated Other C_3

Note 19 - Accumulated Other Comprehensive Income (Loss) (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax, Total	$ 0

Note 19 - Accumulated Other C_4

Note 19 - Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income (Loss) by Component, Net of Tax (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Balance		$ 137,775	$ 128,290
Amount reclassified from accumulated other comprehensive income		0
Total other comprehensive income		2,442	1,996
Total other comprehensive income		2,442	1,996
Balance		143,810	137,775
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Balance	[1]	1,842	(154)
Other comprehensive income, before reclassification	[1]		2,149
Amount reclassified from accumulated other comprehensive income	[1]		(153)
Total other comprehensive income	[1]	2,442	1,996
Total other comprehensive income	[1]	2,442	1,996
Balance	[1]	$ 4,284	$ 1,842
[1]	All amounts are net of tax. Amounts in parentheses indicate debits to accumulated other comprehensive income.

Note 19 - Accumulated Other C_5

Note 19 - Accumulated Other Comprehensive Income (Loss) - Significant Amounts Reclassified Out of Each Component of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Investment securities gains on sale, net	[1]									$ 0	$ 194
Income taxes		$ (467)	$ (295)	$ (565)	$ (74)	$ (634)	$ (661)	$ (686)	$ (611)	(1,401)	(2,592)
Net income		$ 2,489	$ 1,853	$ 2,966	$ 1,041	$ 3,141	$ 3,269	$ 3,290	$ 3,011	$ 8,349	12,711
Reclassification out of Accumulated Other Comprehensive Income [Member] | AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Investment securities gains on sale, net	[2]										194
Income taxes	[2]										(41)
Net income	[2]										$ 153
[1]	Not within scope of ASC 606
[2]	Amounts in parentheses indicate expenses and other amounts indicate income.

Note 20 - Risks and Uncertain_2

Note 20 - Risks and Uncertainties (Details Textual) $ in Millions	Dec. 31, 2020USD ($)	Jun. 30, 2020USD ($)
Payroll Protection Plan, Number of Loan Applications Approved	1,414
Payment Protection Plan, Amount to be Funded	$ 143.8
Payment Protection Plan, Loan Forgiveness	$ 28.9
Financing Receivable, Number of Principal and Interest Payments and Extension of Maturity Date Payment Deferrals	11	362
Financing Receivable, Principal and Interest Payments and Extension of Maturity Date Payment Deferrals	$ 24.5	$ 214.8

Note 21 - Parent Company - Cond

Note 21 - Parent Company - Condensed Balance Sheet (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash and due from banks	$ 92,874,000	$ 35,113,000
Equity Securities, FV-NI	609,000	710,000
Other assets	13,636,000	10,542,000
TOTAL ASSETS	1,391,979,000	1,182,475,000
Trust preferred debt	8,248,000	8,248,000
TOTAL LIABILITIES	1,248,169,000	1,044,700,000
STOCKHOLDERS' EQUITY	143,810,000	137,775,000	$ 128,290,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,391,979,000	1,182,475,000
Parent Company [Member]
Cash and due from banks	1,222,000	2,577,000
Equity Securities, FV-NI	609,000	710,000
Other assets	1,561,000	977,000
TOTAL ASSETS	152,665,000	146,768,000
Other liabilities	607,000	745,000
TOTAL LIABILITIES	8,855,000	8,993,000
STOCKHOLDERS' EQUITY	143,810,000	137,775,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	152,665,000	146,768,000
Parent Company [Member] | Non Bank Subsidiary [Member]
Equity method investments	1,000	1,400,000
Parent Company [Member] | Subsidiary Banks [Member]
Equity method investments	$ 149,272,000	$ 141,104,000

Note 21 - Parent Company - Co_2

Note 21 - Parent Company - Condensed Statement of Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Total interest and dividend income	$ 12,967	$ 13,507	$ 13,155	$ 13,009	$ 13,436	$ 13,885	$ 13,720	$ 13,484	$ 52,638	$ 54,525
Total interest expense	1,696	2,148	2,430	2,976	3,128	3,307	3,451	3,254	9,250	13,140
Salaries and employee benefits									15,835	16,783
Ohio state franchise tax									1,082	1,044
Income before income taxes	2,956	2,148	3,531	1,115	3,775	3,930	3,976	3,622	9,750	15,303
Income taxes	467	295	565	74	634	661	686	611	1,401	2,592
Net income	$ 2,489	$ 1,853	$ 2,966	$ 1,041	$ 3,141	$ 3,269	$ 3,290	$ 3,011	8,349	12,711
Comprehensive income									10,791	14,707
Parent Company [Member]
(Loss) gain on equity securities									(101)	94
Other									7	12
Total interest and dividend income									6,005	5,556
Total interest expense									192	343
Salaries and employee benefits									465	909
Ohio state franchise tax									1,082	1,044
Other									796	996
Total expenses									2,535	3,292
Income before income taxes									3,470	2,264
Income taxes									(552)	(669)
Income before equity in undistributed net income of subsidiaries									4,022	2,933
Equity in undistributed net income of subsidiaries									4,327	9,778
Net income									8,349	12,711
Comprehensive income									10,791	14,707
Parent Company [Member] | Subsidiary Banks [Member]
Dividends from subsidiary									4,700	4,450
Parent Company [Member] | Non Bank Subsidiary [Member]
Dividends from subsidiary									$ 1,399	$ 1,000

Note 21 - Parent Company - Co_3

Note 21 - Parent Company - Condensed Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Net income	$ 2,489	$ 1,853	$ 2,966	$ 1,041	$ 3,141	$ 3,269	$ 3,290	$ 3,011	$ 8,349	$ 12,711
Other, net									551	(1,867)
Net cash provided by operating activities									15,082	13,459
Stock options exercised									12	4
Repurchase of treasury shares									(1,191)	(2,229)
Cash dividends									3,834	3,685
Net cash used in financing activities									197,547	(86,555)
Parent Company [Member]
Net income									8,349	12,711
Equity method investments, income (loss)									(4,327)	(9,778)
Stock-based compensation									144	548
Loss (gain) on equity securities									101	(94)
Other, net									(609)	3,095
Net cash provided by operating activities									3,658	6,482
Proceeds from issuance of common stock									0	95
Restricted stock cash portion									0	(44)
Stock options exercised									12	4
Proceeds from dividend reinvestment plan									0	372
Repurchase of treasury shares									(1,191)	(2,229)
Cash dividends									(3,834)	(3,685)
Net cash used in financing activities									(5,013)	(5,487)
(Decrease) increase in cash									(1,355)	995
CASH AT BEGINNING OF YEAR				$ 2,577				$ 1,582	2,577	1,582
CASH AT END OF YEAR	$ 1,222				$ 2,577				1,222	2,577
Increase in common stock through increase in other, net									0	265
Parent Company [Member] | Middlefield Banking Company [Member]
Equity method investments, income (loss)									(5,726)	(10,742)
Parent Company [Member] | EMORECO [Member]
Equity method investments, income (loss)									$ 1,399	$ 964

Note 22 - Selected Quarterly _3

Note 22 - Selected Quarterly Financial Data (Unaudited) - Selected Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Total interest and dividend income	$ 12,967	$ 13,507	$ 13,155	$ 13,009	$ 13,436	$ 13,885	$ 13,720	$ 13,484	$ 52,638	$ 54,525
Total interest expense	1,696	2,148	2,430	2,976	3,128	3,307	3,451	3,254	9,250	13,140
Net interest income	11,271	11,359	10,725	10,033	10,308	10,578	10,269	10,230	43,388	41,385
Provision for Loan and Lease Losses, Total	2,100	4,000	1,000	2,740	460	80	110	240	9,840	890
Net interest income after provision for loan losses	9,171	7,359	9,725	7,293	9,848	10,498	10,159	9,990	33,548	40,495
Total noninterest income	1,610	1,811	1,495	1,074	1,305	1,105	1,299	1,132	5,990	4,841
Total noninterest expense	7,825	7,022	7,689	7,252	7,378	7,673	7,482	7,500	29,788	30,033
Income before income taxes	2,956	2,148	3,531	1,115	3,775	3,930	3,976	3,622	9,750	15,303
Income taxes	467	295	565	74	634	661	686	611	1,401	2,592
Net income	$ 2,489	$ 1,853	$ 2,966	$ 1,041	$ 3,141	$ 3,269	$ 3,290	$ 3,011	$ 8,349	$ 12,711
Net income, basic (in dollars per share)	$ 0.39	$ 0.29	$ 0.47	$ 0.16	$ 0.48	$ 0.51	$ 0.51	$ 0.46	$ 1.31	$ 1.96
Net income, diluted (in dollars per share)	$ 0.39	$ 0.29	$ 0.46	$ 0.16	$ 0.48	$ 0.51	$ 0.50	$ 0.46	$ 1.30	$ 1.95
Weighted-average common shares and common stock equivalents used to calculate basic earnings per share (in shares)	6,378,706	6,376,291	6,369,467	6,417,109	6,423,543	6,458,258	6,502,508	6,498,278	6,385,350	6,470,408
Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share (in shares)	6,397,681	6,385,765	6,388,118	6,429,443	6,455,387	6,479,066	6,514,946	6,510,568	6,404,524	6,502,806