Middlefield Banc (MBCN) 10-Q 15 May 17 2017 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2017	May 15, 2017
Document Information [Line Items]
Entity Registrant Name	Middlefield Banc Corp.
Entity Central Index Key	836,147
Trading Symbol	mbcn
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		3,204,858
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Amendment Flag	false

Consolidated Balance Sheet (Cur

Consolidated Balance Sheet (Current Period Unaudited) - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks		$ 61,364	$ 31,395
Federal funds sold		1,000	1,100
Cash and cash equivalents		62,364	32,495
Investment securities available for sale, at fair value		110,452	114,376
Loans held for sale		9,462	634
Loans		837,158	609,140
Less allowance for loan and lease losses		6,720	6,598
Net loans		830,438	602,542
Premises and equipment, net		11,481	11,203
Goodwill		15,646	4,559
Core deposit intangibles		3,051	36
Bank-owned life insurance		15,334	13,540
Other real estate owned		1,634	934
Accrued interest and other assets		9,605	7,502
TOTAL ASSETS		1,069,467	787,821
LIABILITIES
Noninterest-bearing demand		162,614	133,630
Interest-bearing demand		94,605	59,560
Money market		162,843	74,940
Savings		183,845	172,370
Time		243,944	189,434
Total deposits		847,851	629,934
Short-term borrowings		76,213	68,359
Other borrowings		39,388	9,437
Accrued interest and other liabilities		6,700	3,131
TOTAL LIABILITIES		970,152	710,861
STOCKHOLDERS' EQUITY
Common stock, no par value; 10,000,000 shares authorized, 3,189,722 and 2,640,418 shares issued; 2,803,557 2,254,253 shares outstanding		69,123	47,943
Retained earnings		42,678	41,334
Accumulated other comprehensive income	[1]	1,032	1,201
Treasury stock, at cost; 386,165 shares		(13,518)	(13,518)
TOTAL STOCKHOLDERS' EQUITY		99,315	76,960
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY		$ 1,069,467	$ 787,821
[1]	All amounts are net of tax. Amounts in parentheses indicate debits.

Consolidated Balance Sheet (Cu3

Consolidated Balance Sheet (Current Period Unaudited) (Parentheticals) - $ / shares $ / shares in Thousands	Mar. 31, 2017	Dec. 31, 2016
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)	3,189,722	2,640,418
Common stock, shares outstanding (in shares)	2,803,557	2,253,403
Treasury stock, shares (in shares)	386,165	386,165

Consolidated Statement of Incom

Consolidated Statement of Income (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
INTEREST AND DIVIDEND INCOME
Interest and fees on loans	$ 9,180,000	$ 6,173,000
Interest-bearing deposits in other institutions	49,000	12,000
Federal funds sold	3,000	4,000
Investment securities:
Taxable interest	218,000	340,000
Tax-exempt interest	637,000	790,000
Dividends on stock	112,000	29,000
Total interest and dividend income	10,199,000	7,348,000
INTEREST EXPENSE
Deposits	1,125,000	855,000
Short-term borrowings	177,000	120,000
Other borrowings	83,000	17,000
Trust preferred securities	57,000	33,000
Total interest expense	1,442,000	1,025,000
NET INTEREST INCOME	8,757,000	6,323,000
Provision for loan losses	165,000	105,000
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	8,592,000	6,218,000
NONINTEREST INCOME
Service charges on deposit accounts	469,000	447,000
Investment securities gains, net	488,000	51,000
Earnings on bank-owned life insurance	109,000	99,000
Gain on sale of loans	234,000	87,000
Other income	211,000	225,000
Total noninterest income	1,511,000	909,000
NONINTEREST EXPENSE
Salaries and employee benefits	3,696,000	2,780,000
Occupancy expense	488,000	335,000
Equipment expense	281,000	269,000
Data processing costs	484,000	272,000
Ohio state franchise tax	186,000	100,000
Federal deposit insurance expense	68,000	132,000
Professional fees	596,000	292,000
(Gain) loss on other real estate owned	(78,000)	12,000
Advertising expense	248,000	195,000
Other real estate expense	133,000	46,000
Directors fees	112,000	107,000
Core deposit intangible amortization	72,000	40,000
Appraiser fees	102,000	101,000
ATM fees	76,000	96,000
Other expense	803,000	591,000
Total noninterest expense	7,267,000	5,338,000
Income before income taxes	2,836,000	1,789,000
Income taxes	736,000	302,000
NET INCOME	$ 2,100,000	$ 1,487,000
EARNINGS PER SHARE
Basic (in dollars per share)	$ 0.78	$ 0.79
Diluted (in dollars per share)	0.78	0.79
DIVIDENDS DECLARED PER SHARE (in dollars per share)	$ 0.27	$ 0.27
Core Deposits [Member]
NONINTEREST EXPENSE
Core deposit intangible amortization	$ 72,000	$ 10,000

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Net income		$ (2,100)	$ (1,487)
Other comprehensive income:
Net unrealized holding gain on available-for-sale securities		231	547
Tax effect		(78)	(187)
Reclassification adjustment for investment securities gains included in net income		(488)	(51)
Tax effect		166	17
Period change	[1]	(169)	326
Comprehensive income		$ 1,931	$ 1,813
[1]	All amounts are net of tax. Amounts in parentheses indicate debits.

Consolidated Statement of Chang

Consolidated Statement of Changes in Stockholders Equity (Unaudited) - 3 months ended Mar. 31, 2017 - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2016	$ 47,943	$ 41,334	$ 1,201	$ (13,518)	$ 76,960
Net income		2,100			2,100
Other comprehensive income			(169)		(169)
Common stock issuance (546,107 shares)	21,048				21,048
Dividend reinvestment and purchase plan (3,197 shares)	132				132
Cash dividends ($0.27 per share)		(756)			(756)
Balance at Mar. 31, 2017	$ 69,123	$ 42,678	$ 1,032	$ (13,518)	$ 99,315

Consolidated Statement of Chan7

Consolidated Statement of Changes in Stockholders Equity (Unaudited) (Parentheticals)	3 Months Ended
	Mar. 31, 2017$ / sharesshares
Common Stock [Member]
Common stock Issued (in shares) | shares	546,107
Dividend reinvestment and purchase plan shares (in shares) | shares	3,197
Retained Earnings [Member]
Cash dividend per share (in dollars per share) | $ / shares	$ 0.27
Cash dividend per share (in dollars per share) | $ / shares	$ 0.27

Consolidated Statement of Cash

Consolidated Statement of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net income	$ 2,100,000	$ 1,487,000
Provision for loan losses	165,000	105,000
Investment securities gain, net	(488,000)	(51,000)
Depreciation and amortization	308,000	231,000
Amortization of premium and discount on investment securities	124,000	107,000
Accretion of deferred loan fees, net	(185,000)	(71,000)
Origination of loans held for sale	(4,562,000)	(3,356,000)
Proceeds from sale of loans	1,921,000	4,374,000
Gain on sale of loans	(234,000)	(87,000)
Earnings on bank-owned life insurance	(109,000)	(99,000)
Deferred income tax	(1,116,000)	(218,000)
(Gain) loss on other real estate owned	(78,000)	12,000
Other real estate owned writedowns	22,000	24,000
Increase in accrued interest receivable	(199,000)	(263,000)
Decrease in accrued interest payable	(14,000)	(6,000)
Core deposit intangible amortization	72,000	40,000
Other, net	547,000	(203,000)
Net cash (used in) provided by operating activities	(1,726,000)	2,026,000
Proceeds from repayments and maturities	3,544,000	4,822,000
Proceeds from sale of securities		1,322,000
Purchases		(1,744,000)
(Increase) decrease in loans, net	(34,533,000)	3,215,000
Proceeds from the sale of other real estate owned	333,000	6,000
Purchase of bank-owned life insurance	(4,000)
Purchase of premises and equipment	(179,000)	(18,000)
Purchase of restricted stock	(899,000)
Redemption of restricted stock	795,000
Acquisition, net of cash paid	5,431,000
Net cash (used in) provided by investing activities	(25,512,000)	7,603,000
Net increase in deposits	19,873,000	6,959,000
Increase (decrease) in short-term borrowings, net	7,854,000	(9,701,000)
Repayment of other borrowings	(49,000)	(64,000)
Proceeds from other borrowings	30,000,000
Common stock issued	53,000	29,000
Proceeds from dividend reinvestment and purchase plan	132,000	125,000
Cash dividends	(756,000)	(507,000)
Net cash provided by (used in) financing activities	57,107,000	(3,159,000)
Increase in cash and cash equivalents	29,869,000	6,470,000
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	32,495,000	23,750,000
CASH AND CASH EQUIVALENTS AT END OF PERIOD	62,364,000	30,220,000
Interest on deposits and borrowings	1,456,000	1,031,000
Income taxes		375,000
Transfers from loans to other real estate owned	977,000	77,000
Common stock issued in business acquisition	20,995
Liabilities assumed
Acquisition, net of cash paid	5,431,000
Merger of Liberty Bank, N.A. into The Middlefield Banking Company [Member]
Acquisition, net of cash paid	5,431,000
Non-cash assets acquired
Loans	194,320,000
Loans held for sale	5,953,000
Premises and equipment, net	325,000
Accrued interest receivable	440,000
Bank-owned life insurance	1,681,000
Core deposit intangible	3,087,000
Deferred tax asset	(1,104,000)
Other assets	997,000
Goodwill	11,087,000
	216,786,000
Liabilities assumed
Time deposits	(30,744,000)
Deposits other than time deposits	(167,300,000)
Accrued interest payable	(47,000)
Other liabilities	(3,131,000)
	(201,222,000)
Net non-cash assets acquired	15,564,000
Acquisition, net of cash paid	$ 5,431,000

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	3 Months Ended
	Mar. 31, 2017
Notes to Financial Statements
Basis of Presentation and Significant Accounting Policies [Text Block]	NOTE 1 The consolidated financial statements of Middlefield Banc Corp. ("Company") include its bank subsidiary, The Middlefield Banking Company (“MBC”), and a nonbank asset resolution subsidiary, EMORECO, Inc. All significant inter-company items have been eliminated. On January 12, 2017, $37.96 1.1934 544,610 $42.2 three February. The accompanying unaudited financial statements have been prepared in accordance with U.S. generally accepted accounting principles and the instructions for Form 10 10 December 31, 2016, 10 December 31, 2016. Recent Accounting Pronouncements – In May 2014, 2014 09, December 15, 2016, 606. In August 2015, 2015 14, 606). 2014 09 one 2014 09 December 15, 2017, 2014 09 December 15, 2018, December 15, 2019. In January 2016, 2016 01, 825 10): December 15, 2017, 960 965 December 15, 2018, December 15, 2019. may December 15, 2017, In February 2016, 2016 02, 842). one 12 may December 15, 2018, December 15, 2019, December 15, 2020. may 1 In March 2016, 2016 04, 405 20). 405 20 606. December 15, 2017, December 15, 2018, December 15, 2019. In March 2016, 2016 05, 815). 815. Topic 815 December 15, 2016, December 15, 2017, December 15, 2018. In March 2016, 2016 06, 815). four December 15, 2016, December 15, 2017, December 15, 2018. In March 2016, 2016 07, 323). December 15, 2016. In March 2016, 2016 08, 606). 606, 606; 2014 09, 606), 2014 09. 2015 14, 606): 2014 09 one In March 2016, 2016 09, 718). 718 123 2004), December 15, 2016, December 15, 2017, December 15, 2018. In April 2016, 2016 10, 606). 606, 606. (1) (2) 606, 2014 09, 606), 606 2014 09). 2015 14, 606): 2014 09 one In May 2016, 2016 12, 606), 606, 606. 2014 09, 606), 606 2014 09). 2015 14, 606): 2014 09 one In June 2016, 2016 13, 2016 13 December 15, 2019, December 15, 2018. first one first one In August 2016, 2016 15, 230): eight may December 15, 2017, December 15, 2018, December 15, 2019. In October 2016, 2016 17, 810), In October 2016, 2016 18, 230), December 15, 2017, December 15, 2018, December 15, 2019. In December 2016, 2016 19, In December 2016, 2016 20, 606, 460, 606. 2016 20 January 1, 2018. December 31, 2019, 2020. In January 2017, 2017 01, 805), December 15, 2017, December 15, 2018, December 15, 2019. In January 2017, 2017 03, 250) 323), September 22, 2016 November 17, 2016 11.M. 2014 09, 606); 2016 02, 842); 2016 13, 326): In January 2017, 2017 04, 2 2, December 15, 2019. December 15, 2020. December 15, 2021. In February 2017, 2017 06, 960), 962), 965). one December 15, 2018. In March 2017, 2017 08, 310 20). December 15, 2018. December 15, 2019, December 15, 2020.

Note 2 - Stock-based Compensati

Note 2 - Stock-based Compensation	3 Months Ended
	Mar. 31, 2017
Notes to Financial Statements
Compensation and Employee Benefit Plans [Text Block]	NOTE 2 The Company had no March 31, 2017 2016. Stock option activity during the three March 31 as follows: Weighted- Weighted- average average Exercise Exercise 2017 Price 2016 Price Outstanding, January 1 29,324 $ 19.50 31,949 $ 25.03 Exercised (1,562 ) 34.34 - - Outstanding, March 31 27,762 $ 23.07 31,949 $ 25.03 Exercisable, March 31 27,762 $ 23.07 31,949 $ 25.03

Note 3 - Earnings Per Share

Note 3 - Earnings Per Share	3 Months Ended
	Mar. 31, 2017
Notes to Financial Statements
Earnings Per Share [Text Block]	NOTE 3 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 to average shares outstanding. The following table sets forth the composition of the weighted-average common shares (denominator) used in the basic and diluted earnings per share computation. For the Three Months Ended March 31, 2017 2016 Weighted-average common shares outstanding 3,065,981 2,264,342 Average treasury stock shares (386,165 ) (386,165 ) Weighted-average common shares and common stock equivalents used to calculate basic earnings per share 2,679,816 1,878,177 Additional common stock equivalents (stock options) used to calculate diluted earnings per share 12,199 8,766 Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share 2,692,015 1,886,943 Options to purchase 27,762 $17.55 $37.48, three March 31, 2017. 27,762 three Options to purchase 31,949 $17.55 $40.24, three March 31, 2016. 7,249

Note 4 - Fair Value Disclosure

Note 4 - Fair Value Disclosure Measurements	3 Months Ended
	Mar. 31, 2017
Notes to Financial Statements
Fair Value Disclosures [Text Block]	NOTE 4 Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for an asset or liability in an orderly transaction between market participants at the measurement date. GAAP established a fair value hierarchy that prioritizes the use of inputs used in valuation methodologies into the following levels: Level I: Quoted prices are available in active markets for identical assets or liabilities as of the reported date. Level II: Pricing inputs are other than the quoted prices in active markets, which are either directly or indirectly observable as of the reported date. The nature of these assets and liabilities includes items for which quoted prices are available but traded less frequently and items that are fair valued using other financial instruments, the parameters of which can be directly observed. Level III: Assets and liabilities that have little to no pricing observability as of the reported date. These items do not have two The following tables present the assets measured on a recurring basis on the Consolidated Balance Sheet at their fair value by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. March 31, 2017 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: U.S. government agency securities $ - $ 9,827 $ - $ 9,827 Obligations of states and political subdivisions - 79,697 - 79,697 Mortgage-backed securities in government-sponsored entities - 19,036 - 19,036 Private-label mortgage-backed securities - 1,602 - 1,602 Total debt securities - 110,162 - 110,162 Equity securities in financial institutions - 290 - 290 Total $ - $ 110,452 $ - $ 110,452 December 31, 2016 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: U.S. government agency securities $ - $ 10,236 $ - $ 10,236 Obligations of states and political subdivisions - 81,223 - 81,223 Mortgage-backed securities in government-sponsored entities - 20,069 - 20,069 Private-label mortgage-backed securities - 1,709 - 1,709 Total debt securities - 113,237 - 113,237 Equity securities in financial institutions - 1,139 - 1,139 Total $ - $ 114,376 $ - $ 114,376 The Company obtains fair values from an independent pricing service which represent either quoted market prices for the identical securities (Level I inputs) or fair values determined by pricing models using a market approach that considers observable market data, such as interest rate volatilities, LIBOR yield curve, credit spreads and prices from market makers and live trading systems (Level II). The Company uses prices compiled by third The following tables present the assets measured on a nonrecurring basis on the Consolidated Balance Sheet at their fair value by level within the fair value hierarchy. Impaired Loans third may $280,600 March 31, 2017. Other Real Estate Owned (OREO) may March 31, 2017 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a nonrecurring basis: Impaired loans $ - $ - $ 585 $ 585 Other real estate owned - - 27 27 December 31, 2016 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a nonrecurring basis: Impaired loans $ - $ - $ 6,498 $ 6,498 Other real estate owned - - 511 511 The following tables present additional quantitative information about assets measured at fair value on a nonrecurring 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) March 31, 2017 Impaired loans $ 585 Appraisal of collateral (1) Appraisal adjustments (2) 3.5% to 8.3% (5.6%) Other real estate owned $ 27 Appraisal of collateral (1) Appraisal adjustments (2) 0.0% to 10.0% Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Fair Value Estimate Valuation Techniques Unobservable Input Range (Weighted Average) December 31, 2016 Impaired loans $ 4,928 Discounted cash flow Discount rate 3.1% to 7.0% (5.1%) 1,570 Appraisal of collateral (1) Appraisal adjustments (2) 0.0% to 59.7% (28.2%) Other real estate owned $ 511 Appraisal of collateral (1) Appraisal adjustments (2) 0% to 10.0 (1) Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 (2) Appraisals may The estimated fair value of the Company’s financial instruments is as follows: March 31, 2017 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Cash and cash equivalents $ 62,364 $ 62,364 $ - $ - $ 62,364 Investment securities Available for sale 110,452 - 110,452 - 110,452 Loans held for sale 9,462 8,328 1,134 - 9,462 Net loans 830,438 - - 834,096 834,096 Bank-owned life insurance 15,334 15,334 - - 15,334 Federal Home Loan Bank stock 3,589 3,589 - - 3,589 Accrued interest receivable 3,068 3,068 - - 3,068 Financial liabilities: Deposits $ 847,851 $ 603,907 $ - $ 205,035 $ 808,942 Short-term borrowings 76,213 76,213 - - 76,213 Other borrowings 39,388 - - 16,565 16,565 Accrued interest payable 427 427 - - 427 December 31, 2016 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Cash and cash equivalents $ 32,495 $ 32,495 $ - $ - $ 32,495 Investment securities Available for sale 114,376 - 114,376 - 114,376 Loans held for sale 634 - 634 - 634 Net loans 602,542 - - 604,447 604,447 Bank-owned life insurance 13,540 13,540 - - 13,540 Restricted stock 2,204 2,204 - - 2,204 Accrued interest receivable 2,426 2,426 - - 2,426 Financial liabilities: Deposits $ 629,934 $ 440,500 $ - $ 189,871 $ 630,371 Short-term borrowings 68,359 68,359 - - 68,359 Other borrowings 9,437 - 9,512 9,512 Accrued interest payable 395 395 - - 395 Financial instruments are defined as cash, evidence of ownership interest in an entity, or a contract which creates an obligation or right to receive or deliver cash or another financial instrument from/to a second Fair value is defined as the amount at which a financial instrument could be exchanged in a current transaction between willing parties other than in a forced liquidation sale. If a quoted market price is available for a financial instrument, the estimated fair value would be calculated based upon the market price per trading unit of the instrument. If no readily available market exists, the fair value estimates for financial instruments should be based upon management’s judgment regarding current economic conditions, interest rate risk, expected cash flows, future estimated losses, and other factors as determined through various option pricing formulas or simulation modeling. Since many of these assumptions result from judgments made by management based upon estimates which are inherently uncertain, the resulting estimated fair values may may As certain assets such as deferred tax assets and premises and equipment are not considered financial instruments, the estimated fair value of financial instruments would not represent the full value of the Company. The Company employed simulation modeling in determining the estimated fair value of financial instruments for which quoted market prices were not available based upon the following assumptions: Cash and Cash Equivalents, Federal Home Loan Bank Stock, Accrued Interest Receivable, Accrued Interest Payable, and Short-Term Borrowings The fair value is equal to the current carrying value. Bank-Owned Life Insurance The fair value is equal to the cash surrender value of the life insurance policies. Investment Securities Available for Sale The fair value of investment securities is equal to the available quoted market price. If no quoted market price is available, fair value is estimated using the quoted market price for similar securities. Loans Held for Sale Loans held for sale are carried at lower of cost or fair value. The fair value of loans held for sale is based on secondary Net Loans The fair value is estimated by discounting future cash flows using current market inputs at which loans with similar terms and qualities would be made to borrowers of similar credit quality. Where quoted market prices were available, primarily for certain residential mortgage loans, such market rates were used as estimates for fair value. Deposits and Other Borrowings The fair values of certificates of deposit and other borrowings are based on the discounted value of contractual cash flows. The discount rates are estimated using rates currently offered for similar instruments with similar remaining maturities. Demand, savings, and money market deposits are valued at the amount payable on demand as of period end. Commitments to Extend Credit These financial instruments are generally not subject to sale, and estimated fair values are not readily available. The carrying value, represented by the net deferred fee arising from the unrecognized commitment or letter of credit, and the fair value, determined by discounting the remaining contractual fee over the term of the commitment using fees currently charged to enter into similar agreements with similar credit risk, are not considered material for disclosure.

Note 5 - Accumulated Other Comp

Note 5 - Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2017
Notes to Financial Statements
Comprehensive Income (Loss) Note [Text Block]	NOTE 5 The following tables present the changes in accumulated other comprehensive income by component net of tax for the three March 31, 2017 2016, Unrealized gains on available-for-sale (Dollars in thousands) securities (a) Balance as of December 31, 2016 $ 1,201 Other comprehensive income before reclassification 153 Amount reclassified from accumulated other comprehensive income (322 ) Period change (169 ) Balance at March 31, 2017 $ 1,032 Unrealized gains on available-for-sale (Dollars in thousands) securities Balance as of December 31, 2015 $ 2,395 Other comprehensive income before reclassification 360 Amount reclassified from accumulated other comprehensive income (34 ) Period change 326 Balance at March 31, 2016 $ 2,721 (a) All amounts are net of tax. Amounts in parentheses indicate debits to net income The following tables present significant amounts reclassified out of each component of accumulated other comprehensive income for the three March 31, 2017 2016, Amount Reclassified from Accumulated Other Comprehensive Income (a) Affected Line Item in the Statement Where (Dollars in thousands) For the Three Months Ended Net Income is Details about other comprehensive income March 31, 2017 March 31, 2016 Presented Unrealized gains on available-for-sale securities $ 488 $ 51 Investment securities gains, net (166 ) (17 ) Income taxes $ 322 $ 34 Net of tax (a) Amounts in parentheses indicate debits to net income

Note 6 - Investment Securities

Note 6 - Investment Securities Available for Sale	3 Months Ended
	Mar. 31, 2017
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	NOTE 6 The amortized cost and fair values of securities available for sale are as follows: March 31, 2017 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value U.S. government agency securities $ 9,732 $ 167 $ (72 ) $ 9,827 Obligations of states and political subdivisions: Taxable 1,614 129 (3 ) 1,740 Tax-exempt 76,804 1,658 (505 ) 77,957 Mortgage-backed securities in government-sponsored entities 19,091 172 (227 ) 19,036 Private-label mortgage-backed securities 1,479 123 - 1,602 Total debt securities 108,720 2,249 (807 ) 110,162 Equity securities in financial institutions 170 120 - 290 Total $ 108,890 $ 2,369 $ (807 ) $ 110,452 December 31, 2016 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value U.S. government agency securities $ 10,158 $ 174 $ (96 ) $ 10,236 Obligations of states and political subdivisions: Taxable 1,615 129 (4 ) 1,740 Tax-exempt 78,327 1,678 (522 ) 79,483 Mortgage-backed securities in - government-sponsored entities 20,128 202 (261 ) 20,069 Private-label mortgage-backed securities 1,579 130 - 1,709 Total debt securities 111,807 2,313 (883 ) 113,237 Equity securities in financial institutions 750 389 - 1,139 Total $ 112,557 $ 2,702 $ (883 ) $ 114,376 The amortized cost and fair value of debt securities at March 31, 2017, may (Dollar amounts in thousands) Amortized Cost Fair Value Due in one year or less $ 3,922 $ 3,975 Due after one year through five years 9,224 9,527 Due after five years through ten years 11,400 11,793 Due after ten years 84,174 84,867 Total $ 108,720 $ 110,162 Proceeds from the sales of securities available for sale and the gross realized gains and losses for the three March 31 For the Three Months (Dollar amounts in thousands) Ended March 31, 2017 2016 Proceeds from sales $ - $ 1,322 Gross realized gains 488 51 Gross realized losses - - Investment securities with an approximate carrying value of $58.4 $60.3 March 31, 2017 December 31, 2016, $4.5 March 31, 2017 Prior to the acquisition of Liberty Bank, N.A., the Company had a previously held equity interest in Liberty which was re-measured at fair value on the acquisition date and resulted in a gain of $488,000, three March 31, 2017. 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. March 31, 2017 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 U.S. government agency securities $ 3,723 $ (35 ) $ 1,364 $ (37 ) $ 5,087 $ (72 ) Obligations of states and political subdivisions Taxable 506 (3 ) - - 506 (3 ) Tax-exempt 22,979 (505 ) - - 22,979 (505 ) Mortgage-backed securities in government-sponsored entities 9,432 (114 ) 4,401 (113 ) 13,833 (227 ) Total $ 36,640 $ (657 ) $ 5,765 $ (150 ) $ 42,405 $ (807 ) December 31, 2016 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 U.S. government agency securities $ 3,803 $ (47 ) $ 1,316 $ (49 ) $ 5,119 $ (96 ) Obligations of states and politcal subdivisions Taxable 502 (4 ) - - 502 (4 ) Tax-exempt 23,554 (522 ) - - 23,554 (522 ) Mortgage-backed securities in government-sponsored entities 9,066 (126 ) 4,438 (135 ) 13,504 (261 ) Total $ 36,925 $ (699 ) $ 5,754 $ (184 ) $ 42,679 $ (883 ) There were 67 March 31, 2017. 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 Company assesses whether the unrealized loss is other than temporary. OTTI losses are recognized in earnings when the Company has the intent to sell the debt security or it is more likely than not that it will be required to sell the debt security before recovery of its amortized cost basis. However, even if the Company does not expect to sell a debt security, it must evaluate expected cash flows to be received and determine if a credit loss has occurred. An unrealized loss is generally deemed to be other than temporary and a credit loss is deemed to exist if the present value of the expected future cash flows is less than the amortized cost basis of the debt security. As a result the credit loss component of an OTTI is recorded as a component of investment securities gains (losses) in the accompanying Consolidated Statement of Income, while the remaining portion of the impairment loss is recognized in other comprehensive income, provided the Company does not intend to sell the underlying debt security and it is “more likely than not” that the Company will not have to sell the debt security prior to recovery. Debt securities issued by U.S. government agencies, U.S. government-sponsored enterprises, and state and political subdivisions accounted for more than 98.3% March 31, 2017 no • 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; and • 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. For the three March 31, 2017 2016, March 31, 2017 December 31, 2016

Note 7 - Loans and Related Allo

Note 7 - Loans and Related Allowance for Loan Losses	3 Months Ended
	Mar. 31, 2017
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	NOTE 7 LOANS AND RELATED ALLOWANCE FOR LOAN AND LEASE LOSSES Major classifications of loans are summarized as follows (in thousands): March 31, December 31, 2017 2016 Commercial and industrial $ 91,777 $ 60,630 Real estate - construction 29,238 23,709 Real estate - mortgage: Residential 300,508 270,830 Commercial 395,102 249,490 Consumer installment 20,533 4,481 837,158 609,140 Less: Allowance for loan and lease losses 6,720 6,598 Net loans $ 830,438 $ 602,542 The amounts above include deferred loan origination costs of $3.2 $1.7 March 31, 2017 December 31, 2016, The Company’s primary business activity is with 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 and Westerville, Ohio. The Northeastern Ohio trade area includes the newly acquired Liberty locations in Beachwood, Twinsburg, and Solon, Ohio. Commercial, residential, consumer, and agricultural loans are granted. Although the Company has a diversified loan portfolio, loans outstanding to individuals and businesses are dependent upon the local economic conditions in the Company’s immediate trade area. Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff generally are reported at their outstanding unpaid principal balances net of the allowance for loan and lease losses. Interest income is recognized as income 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 being deferred and the net amount amortized as an adjustment of the related loan’s yield. Management is amortizing these amounts over the contractual life of the related loans. The following tables summarize the primary segments of the loan portfolio and allowance for loan and lease losses (in thousands): Real Estate- Mortgage March 31, 2017 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Loans: Individually evaluated for impairment $ 1,553 $ 706 $ 3,049 $ 6,967 $ 4 $ 12,279 Collectively evaluated for impairment 90,224 28,532 297,459 388,135 20,529 824,879 Total loans $ 91,777 $ 29,238 $ 300,508 $ 395,102 $ 20,533 $ 837,158 Real estate- Mortgage December 31, 2016 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Loans: Individually evaluated for impairment $ 1,190 $ 913 $ 3,135 $ 7,187 $ 5 $ 12,430 Collectively evaluated for impairment 59,440 22,796 267,695 242,303 4,476 596,710 Total loans $ 60,630 $ 23,709 $ 270,830 $ 249,490 $ 4,481 $ 609,140 Real Estate- Mortgage March 31, 2017 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Allowance for loan and lease losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 237 $ - $ 104 $ 188 $ - $ 529 Collectively evaluated for impairment 379 186 2,419 3,190 17 6,191 Total ending allowance balance $ 616 $ 186 $ 2,523 $ 3,378 $ 17 $ 6,720 Real Estate- Mortgage December 31, 2016 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Allowance for loan and lease losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 90 $ - $ 251 $ 186 $ - $ 527 Collectively evaluated for impairment 358 172 2,567 2,949 25 6,071 Total ending allowance balance $ 448 $ 172 $ 2,818 $ 3,135 $ 25 $ 6,598 The Company’s loan portfolio is segmented to a level that allows management to monitor risk and performance. The portfolio is segmented into Commercial and Industrial (“C&I”), Real Estate Construction, Real Estate - Mortgage which is further segmented into Residential and Commercial real estate (“CRE”), and Consumer Installment Loans. The C&I loan segment consists of loans made for the purpose of financing the activities of commercial customers. The residential mortgage loan segment consists of loans made for the purpose of financing the activities of residential homeowners. The commercial mortgage loan segment consists of loans made for the purpose of financing the activities of commercial real estate owners and operators. The consumer loan segment consists primarily of installment loans and overdraft lines of credit connected with customer deposit accounts. The increase in the allowance for loan loss for C&I, Real Estate Construction, and CRE loan portfolios were partially offset by decreases in the allowance for the Residential and Consumer Installment loan portfolios. 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 separately evaluate individual consumer and residential mortgage loans for impairment, unless such loans are part of a larger relationship that is impaired. 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 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 necessary (in thousands): March 31, 2017 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial and industrial $ 488 485 - Real estate - construction 706 675 - Real estate - mortgage: Residential 2,296 2,286 - Commercial 1,616 1,610 - Consumer installment 4 4 - Total $ 5,110 $ 5,060 $ - With an allowance recorded: Commercial and industrial $ 1,065 1,060 237 Real estate - construction - - - Real estate - mortgage: Residential 753 749 104 Commercial 5,351 5,319 188 Total $ 7,169 $ 7,128 $ 529 Total: Commercial and industrial $ 1,553 $ 1,545 $ 237 Real estate - construction 706 675 - Real estate - mortgage: Residential 3,049 3,035 104 Commercial 6,967 6,929 188 Consumer installment 4 4 - Total $ 12,279 $ 12,188 $ 529 December 31, 2016 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial and industrial $ 319 $ 318 $ - Real estate - construction 913 909 - Real estate - mortgage: Residential 2,142 2,140 - Commercial 2,031 2,027 - Total $ 5,405 $ 5,394 $ - With an allowance recorded: Commercial and industrial $ 871 $ 868 $ 90 Real estate - construction - - - Real estate - mortgage: Residential 993 991 251 Commercial 5,156 5,147 186 Consumer installment 5 5 - Total $ 7,025 $ 7,011 $ 527 Total: Commercial and industrial $ 1,190 $ 1,186 $ 90 Real estate - construction 913 909 - Real estate - mortgage: Residential 3,135 3,131 251 Commercial 7,187 7,174 186 Consumer installment 5 5 - Total $ 12,430 $ 12,405 $ 527 The tables above include troubled debt restructuring totaling $1.7 March 31, 2017 $6.7 December 31, 2016. The following tables present the average balance and interest income by class, recognized on impaired loans (in thousands): For the Three Months Ended March 31, 2017 Average Recorded Interest Income Investment Recognized Total: Commercial and industrial $ 1,372 $ 84 Real estate - construction 810 - Real estate - mortgage: Residential 3,092 22 Commercial 7,077 88 Consumer installment 5 - $ 12,356 $ 194 For the Three Months Ended March 31, 2016 Average Recorded Interest Income Investment Recognized Total: Commercial and industrial $ 1,337 $ 13 Real estate - construction 1,620 25 Real estate - mortgage: Residential 3,983 36 Commercial 7,719 123 Consumer installment 6 - $ 14,665 $ 197 Management uses a nine first five 90 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 with the Chief Credit Officer ultimately responsible for accurate and timely risk ratings. The Credit Department performs an annual review of all commercial relationships with loan balances of $1,000,000 $250,000 $125,000. The primary risk of commercial and industrial loans is the current economic uncertainties. C&I loans are, by nature, secured by less substantial collateral than real estate-secured loans. The primary risk of real estate construction loans is potential delays and /or disputes during the completion process. The primary risk of residential real estate loans is current economic uncertainties along with the slow recovery in the housing market. The primary risk of commercial real estate loans is loss of income of the owner or occupier of the property and the inability of the market to sustain rent levels. Consumer installment loans historically have experienced higher delinquency rates. Consumer installments are typically secured by less substantial collateral than other types of credits. The following tables present the classes of the loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk-rating system (in thousands): Special Total Pass Mention Substandard Doubtful Loans March 31, 2017 Commercial and industrial $ 85,248 $ 2,051 $ 4,478 $ - $ 91,777 Real estate - construction 29,215 - 23 - 29,238 Real estate - mortgage: Residential 294,284 568 5,656 - 300,508 Commercial 386,346 3,844 4,912 - 395,102 Consumer installment 20,526 - 7 - 20,533 Total $ 815,619 $ 6,463 $ 15,076 $ - $ 837,158 Special Total Pass Mention Substandard Doubtful Loans December 31, 2016 Commercial and industrial $ 58,539 $ 663 $ 1,428 $ - $ 60,630 Real estate - construction 23,541 144 24 - 23,709 Real estate - mortgage: Residential 264,481 428 5,921 - 270,830 Commercial 240,678 4,422 4,390 - 249,490 Consumer installment 4,467 - 14 - 4,481 Total $ 591,706 $ 5,657 $ 11,777 $ - $ 609,140 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. Nonperforming assets include nonaccrual loans, troubled debt restructurings (TDRs), loans 90 The following tables present the classes of the loan portfolio summarized by the aging categories of performing loans (in thousands): 30-59 Days 60-89 Days 90 Days+ Total Total Current Past Due Past Due Past Due Past Due Loans March 31, 2017 Commercial and industrial $ 90,236 $ 1,325 $ 9 $ 207 $ 1,541 $ 91,777 Real estate - construction 29,238 - - - - 29,238 Real estate - mortgage: Residential 296,786 2,767 454 501 3,722 300,508 Commercial 394,255 361 30 456 847 395,102 Consumer installment 20,503 17 13 - 30 20,533 Total $ 831,018 $ 4,470 $ 506 $ 1,164 $ 6,140 $ 837,158 30-59 Days 60-89 Days 90 Days+ Total Total Current Past Due Past Due Past Due Past Due Loans December 31, 2016 Commercial and industrial $ 60,407 $ 17 $ 2 $ 204 $ 223 $ 60,630 Real estate - construction 23,709 - - - - 23,709 Real estate - mortgage: Residential 268,041 1,909 207 673 2,789 270,830 Commercial 249,081 92 - 317 409 249,490 Consumer installment 4,465 - 10 6 16 4,481 Total $ 605,703 $ 2,018 $ 219 $ 1,200 $ 3,437 $ 609,140 The following tables present the classes of the loan portfolio summarized by nonaccrual loans (in thousands): March 31, 2017 90+ Days Past Nonaccrual Due and Accruing Commercial and industrial $ 410 $ - Real estate - construction - - Real estate - mortgage: Residential 4,145 35 Commercial 1,990 - Consumer installment - - Total $ 6,545 $ 35 December 31, 2016 90+ Days Past Nonaccrual Due and Accruing Commercial and industrial $ 454 $ - Real estate - construction - - Real estate - mortgage: Residential 4,034 - Commercial 1,409 - Consumer installment 6 - Total $ 5,903 $ - Interest income that would have been recorded had these loans not been placed on nonaccrual status was $462,000 three March 31, 217 $309,000 December 31, 2016. 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. The historical charge-off factor was calculated using 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 primary segments of the loan portfolio (in thousands): Commercial and industrial Real estate- construction Real estate- residential mortgage Real estate- commercial mortgage Consumer installment Total ALLL balance at December 31, 2016 $ 448 $ 172 $ 2,818 $ 3,135 $ 25 $ 6,598 Charge-offs (20 ) - (68 ) (19 ) (101 ) (208 ) Recoveries 78 17 7 - 63 165 Provision 110 (3 ) (234 ) 262 30 165 ALLL balance at March 31, 2017 $ 616 $ 186 $ 2,523 $ 3,378 $ 17 $ 6,720 Commercial and industrial Real estate- construction Real estate- residential mortgage Real estate- commercial mortgage Consumer installment Total ALLL balance at December 31, 2015 $ 867 $ 276 $ 3,139 $ 2,078 $ 25 $ 6,385 Charge-offs (120 ) - (42 ) - (15 ) (177 ) Recoveries 37 - 4 - 3 44 Provision (201 ) (29 ) (385 ) 705 15 105 ALLL balance at March 31, 2016 $ 583 $ 247 $ 2,716 $ 2,783 $ 28 $ 6,357 The following tables summarize troubled debt restructurings (in thousands): For the Three Months Ended March 31, 2017 Number of Contracts Pre-Modification Post-Modification Term Outstanding Recorded Outstanding Recorded Troubled Debt Restructurings Modification Other Total Investment Investment Commercial and industrial 1 - 1 $ 50 $ 50 Residential real estate 2 - 2 36 36 For the Three Months Ended March 31, 2016 Number of Contracts Pre-Modification Post-Modification Term Outstanding Recorded Outstanding Recorded Troubled Debt Restructurings Modification Other Total Investment Investment Commercial and industrial 2 - 2 $ 33 $ 33 Residential real estate 2 - 2 74 74 Commercial real estate 2 - 2 581 581 The following tables summarizes subsequent defaults of troubled debt restructurings (in thousands): For the Three Months Ended March 31, 2017 Troubled Debt Restructurings Number of Recorded subsequently defaulted Contracts Investment Residential real estate 1 $ 33 There were no three March 31, 2016.

Note 8 - Other Real Estate Owne

Note 8 - Other Real Estate Owned ("OREO")	3 Months Ended
	Mar. 31, 2017
Notes to Financial Statements
Other Real Estate Owned (OREO) [Text Block]	NOTE 8 OTHER REAL ESTATE OWNED (“OREO”) OREO comprises foreclosed assets acquired in settlement of loans and is carried at fair value less estimated cost to sell and is included in other assets on the Consolidated Balance Sheet. At March 31, 2017 December 31, 2016, $1.6 $934,000 March 31, 2017,

Note 9 - Business Acquisition

Note 9 - Business Acquisition	3 Months Ended
	Mar. 31, 2017
Notes to Financial Statements
Business Combination Disclosure [Text Block]	NOTE 9 – BUSINESS ACQUISITION In the second 2016, 100% The transaction closed on January 12, 2017, Under the terms of the merger agreement, the Company acquired all of the outstanding shares of Liberty for a total purchase price of $42.2 544,610 $21.2 $38.55 January 12, 2017. $488,000, three March 31, 2017. The acquired assets and assumed liabilities were measured at estimated fair values. The Company relied on the income approach to estimate the value of the loans. The loans’ underlying characteristics (account types, remaining terms (in months), annual interest rates or coupons, interest types, past delinquencies, timing of principal and interest payments, current market rates, loan-to-value ratios, loss exposures and remaining balance) were considered. Various assumptions were applied regarding credit, interest, and prepayment risks for the loans based on loan types, payment types and fixed or variable classifications. The Company also recorded an identifiable intangible asset representing the core deposit base of Liberty Bank. The discounted cash flow method was used in valuing this intangible. This method is based upon the principle of future benefits; economic value is based on anticipated future benefits as measured by cash flows expected to occur in the future. The estimated future cash flows are converted to a value indicator by determining the present value of the cash flows using a discount rate. The discount rate is based upon the nature of the business, the level of risk, and the expected stability of the estimated future cash flows. The higher the risk, the higher the discount rate, and the lower the value indicator. Time deposit fair values were estimated using an income approach. The methodology entailed discounting the contractual cash flows of the instruments over their remaining contractual lives at prevailing market rates. Interest and principal payments were projected for each category of CDs over the period from the valuation date to the maturity dates. These payments represent future cash flows to be paid to depositors until maturity. Using appropriate market interest rates for each category of CDs the future cash flows were discounted to their present value equivalents. The market interest rates were selected based on peer rates in Ohio from Bankrate as of the valuation date. The following table summarizes the purchase of Liberty Bank as of January 12, 2017: (In Thousands, Except Per Share Data) Purchase Price Consideration in Common Stock Middlefield Banc Corp shares issued 544,610 Value assigned to Middlefield Banc Corp common share $ 38.55 Purchase price assigned to Liberty Bank common shares exchanged for Middlefield Banc Corp shares 20,995 Purchase Price Consideration in Cash Purchase price assigned to Liberty Bank common shares exchanged for cash 21,173 Total Purchase Price 42,168 Previously held equity interest in Liberty Bank (1,068 ) Net Assets Acquired: Liberty Bank shareholders equity $ 30,097 Adjustments to reflect assets acquired at fair value: Loans Allowance for loan loss 3,257 Core deposit intangible 3,087 Loans - interest rate 578 Loans - general credit (2,161 ) Deferred tax asset (1,104 ) Other 254 Adjustments to reflect liabilities acquired at fair value: Time deposits (141 ) Change in control (1,718 ) 32,149 Goodwill resulting from merger $ 11,087 The following condensed statement reflects the amounts recognized as of the acquisition date for each major class of asset acquired and liability assumed, at fair value: (In Thousands) Total purchase price $ 42,168 Assets (liabilities) acquired: Net assets acquired: Cash 26,604 Loans 200,273 Premises and equipment, net 325 Accrued interest receivable 440 Bank-owned life insurance 1,681 Core deposit intangible 3,087 Deferred tax asset (1,104 ) Other assets 997 Time deposits (30,744 ) Non-time deposits (167,300 ) Accrued interest payable (47 ) Other liabilities (3,131 ) 31,081 Goodwill resulting from the Liberty Bank merger $ 11,087 Middlefield recorded goodwill and intangibles associated with the purchase of Liberty Bank totaling $11,087,000. not three March 31, 2017. Identifiable intangibles are amortized to their estimated residual values over the expected useful lives. Such lives are also periodically reassessed to determine if any amortization period adjustments are required. During the three March 31, 2017, no March 31, 2017 $3,025,000 $62,000 As of March 31, 2017, Remaining 2017 280 2018 348 2019 341 2020 332 2021 321 2022 309 2023 296 2024 281 2025 264 2026 253 3,025 Results of operations for Liberty prior to the acquisition date are not included in the Consolidated Statement of Income for the three March 31, 2017. March 31, 2017 Actual From Acquisition Date Through March 31, 2017 (in thousands) Net interest income $ 2,735 Noninterest income 291 Net income $ 98 The table below presents unaudited pro forma information as if the acquisition of Liberty Bank had occurred on January 1, 2016 January 1, 2017. Pro Formas Three-month period ended March 31, 2017 2016 (in thousands, except per share data) Net interest income $ 9,055 $ 8,330 Noninterest income 1,572 1,157 Net income $ 1,083 $ 1,822 Pro forma earnings per share: Basic $ 0.40 $ 0.97 Diluted $ 0.40 $ 0.97 Included in the above net income amount for March 31, 2017 $467,000

Note 10 - Subsequent Event

Note 10 - Subsequent Event	3 Months Ended
	Mar. 31, 2017
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 10 – SUBSEQUENT EVENT Pursuant to its private placement, on May 9, 2017, 400,000 no $40.00 $16,000,000 $760,000 1933, 4(a)(2) 506

Significant Accounting Policies

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements – In May 2014, 2014 09, December 15, 2016, 606. In August 2015, 2015 14, 606). 2014 09 one 2014 09 December 15, 2017, 2014 09 December 15, 2018, December 15, 2019. In January 2016, 2016 01, 825 10): December 15, 2017, 960 965 December 15, 2018, December 15, 2019. may December 15, 2017, In February 2016, 2016 02, 842). one 12 may December 15, 2018, December 15, 2019, December 15, 2020. may 1 In March 2016, 2016 04, 405 20). 405 20 606. December 15, 2017, December 15, 2018, December 15, 2019. In March 2016, 2016 05, 815). 815. Topic 815 December 15, 2016, December 15, 2017, December 15, 2018. In March 2016, 2016 06, 815). four December 15, 2016, December 15, 2017, December 15, 2018. In March 2016, 2016 07, 323). December 15, 2016. In March 2016, 2016 08, 606). 606, 606; 2014 09, 606), 2014 09. 2015 14, 606): 2014 09 one In March 2016, 2016 09, 718). 718 123 2004), December 15, 2016, December 15, 2017, December 15, 2018. In April 2016, 2016 10, 606). 606, 606. (1) (2) 606, 2014 09, 606), 606 2014 09). 2015 14, 606): 2014 09 one In May 2016, 2016 12, 606), 606, 606. 2014 09, 606), 606 2014 09). 2015 14, 606): 2014 09 one In June 2016, 2016 13, 2016 13 December 15, 2019, December 15, 2018. first one first one In August 2016, 2016 15, 230): eight may December 15, 2017, December 15, 2018, December 15, 2019. In October 2016, 2016 17, 810), In October 2016, 2016 18, 230), December 15, 2017, December 15, 2018, December 15, 2019. In December 2016, 2016 19, In December 2016, 2016 20, 606, 460, 606. 2016 20 January 1, 2018. December 31, 2019, 2020. In January 2017, 2017 01, 805), December 15, 2017, December 15, 2018, December 15, 2019. In January 2017, 2017 03, 250) 323), September 22, 2016 November 17, 2016 11.M. 2014 09, 606); 2016 02, 842); 2016 13, 326): In January 2017, 2017 04, 2 2, December 15, 2019. December 15, 2020. December 15, 2021. In February 2017, 2017 06, 960), 962), 965). one December 15, 2018. In March 2017, 2017 08, 310 20). December 15, 2018. December 15, 2019, December 15, 2020.

Note 2 - Stock-based Compensa20

Note 2 - Stock-based Compensation (Tables)	3 Months Ended
	Mar. 31, 2017
Notes Tables
Share-based Compensation, Stock Options, Activity [Table Text Block]	Weighted- Weighted- average average Exercise Exercise 2017 Price 2016 Price Outstanding, January 1 29,324 $ 19.50 31,949 $ 25.03 Exercised (1,562 ) 34.34 - - Outstanding, March 31 27,762 $ 23.07 31,949 $ 25.03 Exercisable, March 31 27,762 $ 23.07 31,949 $ 25.03

Note 3 - Earnings Per Share (Ta

Note 3 - Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2017
Notes Tables
Schedule of Weighted Average Number of Shares [Table Text Block]	For the Three Months Ended March 31, 2017 2016 Weighted-average common shares outstanding 3,065,981 2,264,342 Average treasury stock shares (386,165 ) (386,165 ) Weighted-average common shares and common stock equivalents used to calculate basic earnings per share 2,679,816 1,878,177 Additional common stock equivalents (stock options) used to calculate diluted earnings per share 12,199 8,766 Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share 2,692,015 1,886,943

Note 4 - Fair Value Disclosur22

Note 4 - Fair Value Disclosure Measurements (Tables)	3 Months Ended
	Mar. 31, 2017
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	March 31, 2017 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: U.S. government agency securities $ - $ 9,827 $ - $ 9,827 Obligations of states and political subdivisions - 79,697 - 79,697 Mortgage-backed securities in government-sponsored entities - 19,036 - 19,036 Private-label mortgage-backed securities - 1,602 - 1,602 Total debt securities - 110,162 - 110,162 Equity securities in financial institutions - 290 - 290 Total $ - $ 110,452 $ - $ 110,452 December 31, 2016 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: U.S. government agency securities $ - $ 10,236 $ - $ 10,236 Obligations of states and political subdivisions - 81,223 - 81,223 Mortgage-backed securities in government-sponsored entities - 20,069 - 20,069 Private-label mortgage-backed securities - 1,709 - 1,709 Total debt securities - 113,237 - 113,237 Equity securities in financial institutions - 1,139 - 1,139 Total $ - $ 114,376 $ - $ 114,376
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	March 31, 2017 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a nonrecurring basis: Impaired loans $ - $ - $ 585 $ 585 Other real estate owned - - 27 27 December 31, 2016 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a nonrecurring basis: Impaired loans $ - $ - $ 6,498 $ 6,498 Other real estate owned - - 511 511
Fair Value Inputs, Assets, Quantitative Information [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) March 31, 2017 Impaired loans $ 585 Appraisal of collateral (1) Appraisal adjustments (2) 3.5% to 8.3% (5.6%) Other real estate owned $ 27 Appraisal of collateral (1) Appraisal adjustments (2) 0.0% to 10.0% Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Fair Value Estimate Valuation Techniques Unobservable Input Range (Weighted Average) December 31, 2016 Impaired loans $ 4,928 Discounted cash flow Discount rate 3.1% to 7.0% (5.1%) 1,570 Appraisal of collateral (1) Appraisal adjustments (2) 0.0% to 59.7% (28.2%) Other real estate owned $ 511 Appraisal of collateral (1) Appraisal adjustments (2) 0% to 10.0
Fair Value, by Balance Sheet Grouping [Table Text Block]	March 31, 2017 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Cash and cash equivalents $ 62,364 $ 62,364 $ - $ - $ 62,364 Investment securities Available for sale 110,452 - 110,452 - 110,452 Loans held for sale 9,462 8,328 1,134 - 9,462 Net loans 830,438 - - 834,096 834,096 Bank-owned life insurance 15,334 15,334 - - 15,334 Federal Home Loan Bank stock 3,589 3,589 - - 3,589 Accrued interest receivable 3,068 3,068 - - 3,068 Financial liabilities: Deposits $ 847,851 $ 603,907 $ - $ 205,035 $ 808,942 Short-term borrowings 76,213 76,213 - - 76,213 Other borrowings 39,388 - - 16,565 16,565 Accrued interest payable 427 427 - - 427 December 31, 2016 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Cash and cash equivalents $ 32,495 $ 32,495 $ - $ - $ 32,495 Investment securities Available for sale 114,376 - 114,376 - 114,376 Loans held for sale 634 - 634 - 634 Net loans 602,542 - - 604,447 604,447 Bank-owned life insurance 13,540 13,540 - - 13,540 Restricted stock 2,204 2,204 - - 2,204 Accrued interest receivable 2,426 2,426 - - 2,426 Financial liabilities: Deposits $ 629,934 $ 440,500 $ - $ 189,871 $ 630,371 Short-term borrowings 68,359 68,359 - - 68,359 Other borrowings 9,437 - 9,512 9,512 Accrued interest payable 395 395 - - 395

Note 5 - Accumulated Other Co23

Note 5 - Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2017
Notes Tables
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Unrealized gains on available-for-sale (Dollars in thousands) securities (a) Balance as of December 31, 2016 $ 1,201 Other comprehensive income before reclassification 153 Amount reclassified from accumulated other comprehensive income (322 ) Period change (169 ) Balance at March 31, 2017 $ 1,032 Unrealized gains on available-for-sale (Dollars in thousands) securities Balance as of December 31, 2015 $ 2,395 Other comprehensive income before reclassification 360 Amount reclassified from accumulated other comprehensive income (34 ) Period change 326 Balance at March 31, 2016 $ 2,721
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]	Amount Reclassified from Accumulated Other Comprehensive Income (a) Affected Line Item in the Statement Where (Dollars in thousands) For the Three Months Ended Net Income is Details about other comprehensive income March 31, 2017 March 31, 2016 Presented Unrealized gains on available-for-sale securities $ 488 $ 51 Investment securities gains, net (166 ) (17 ) Income taxes $ 322 $ 34 Net of tax

Note 6 - Investment Securitie24

Note 6 - Investment Securities Available for Sale (Tables)	3 Months Ended
	Mar. 31, 2017
Notes Tables
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	March 31, 2017 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value U.S. government agency securities $ 9,732 $ 167 $ (72 ) $ 9,827 Obligations of states and political subdivisions: Taxable 1,614 129 (3 ) 1,740 Tax-exempt 76,804 1,658 (505 ) 77,957 Mortgage-backed securities in government-sponsored entities 19,091 172 (227 ) 19,036 Private-label mortgage-backed securities 1,479 123 - 1,602 Total debt securities 108,720 2,249 (807 ) 110,162 Equity securities in financial institutions 170 120 - 290 Total $ 108,890 $ 2,369 $ (807 ) $ 110,452 December 31, 2016 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value U.S. government agency securities $ 10,158 $ 174 $ (96 ) $ 10,236 Obligations of states and political subdivisions: Taxable 1,615 129 (4 ) 1,740 Tax-exempt 78,327 1,678 (522 ) 79,483 Mortgage-backed securities in - government-sponsored entities 20,128 202 (261 ) 20,069 Private-label mortgage-backed securities 1,579 130 - 1,709 Total debt securities 111,807 2,313 (883 ) 113,237 Equity securities in financial institutions 750 389 - 1,139 Total $ 112,557 $ 2,702 $ (883 ) $ 114,376
Investments Classified by Contractual Maturity Date [Table Text Block]	(Dollar amounts in thousands) Amortized Cost Fair Value Due in one year or less $ 3,922 $ 3,975 Due after one year through five years 9,224 9,527 Due after five years through ten years 11,400 11,793 Due after ten years 84,174 84,867 Total $ 108,720 $ 110,162 For the Three Months (Dollar amounts in thousands) Ended March 31, 2017 2016 Proceeds from sales $ - $ 1,322 Gross realized gains 488 51 Gross realized losses - -
Schedule of Unrealized Loss on Investments [Table Text Block]	March 31, 2017 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 U.S. government agency securities $ 3,723 $ (35 ) $ 1,364 $ (37 ) $ 5,087 $ (72 ) Obligations of states and political subdivisions Taxable 506 (3 ) - - 506 (3 ) Tax-exempt 22,979 (505 ) - - 22,979 (505 ) Mortgage-backed securities in government-sponsored entities 9,432 (114 ) 4,401 (113 ) 13,833 (227 ) Total $ 36,640 $ (657 ) $ 5,765 $ (150 ) $ 42,405 $ (807 ) December 31, 2016 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 U.S. government agency securities $ 3,803 $ (47 ) $ 1,316 $ (49 ) $ 5,119 $ (96 ) Obligations of states and politcal subdivisions Taxable 502 (4 ) - - 502 (4 ) Tax-exempt 23,554 (522 ) - - 23,554 (522 ) Mortgage-backed securities in government-sponsored entities 9,066 (126 ) 4,438 (135 ) 13,504 (261 ) Total $ 36,925 $ (699 ) $ 5,754 $ (184 ) $ 42,679 $ (883 )

Note 7 - Loans and Related Al25

Note 7 - Loans and Related Allowance for Loan Losses (Tables)	3 Months Ended
	Mar. 31, 2017
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	March 31, December 31, 2017 2016 Commercial and industrial $ 91,777 $ 60,630 Real estate - construction 29,238 23,709 Real estate - mortgage: Residential 300,508 270,830 Commercial 395,102 249,490 Consumer installment 20,533 4,481 837,158 609,140 Less: Allowance for loan and lease losses 6,720 6,598 Net loans $ 830,438 $ 602,542
Schedule Of Financing Receivable By Segment [Table Text Block]	Real Estate- Mortgage March 31, 2017 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Loans: Individually evaluated for impairment $ 1,553 $ 706 $ 3,049 $ 6,967 $ 4 $ 12,279 Collectively evaluated for impairment 90,224 28,532 297,459 388,135 20,529 824,879 Total loans $ 91,777 $ 29,238 $ 300,508 $ 395,102 $ 20,533 $ 837,158 Real estate- Mortgage December 31, 2016 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Loans: Individually evaluated for impairment $ 1,190 $ 913 $ 3,135 $ 7,187 $ 5 $ 12,430 Collectively evaluated for impairment 59,440 22,796 267,695 242,303 4,476 596,710 Total loans $ 60,630 $ 23,709 $ 270,830 $ 249,490 $ 4,481 $ 609,140 Real Estate- Mortgage March 31, 2017 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Allowance for loan and lease losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 237 $ - $ 104 $ 188 $ - $ 529 Collectively evaluated for impairment 379 186 2,419 3,190 17 6,191 Total ending allowance balance $ 616 $ 186 $ 2,523 $ 3,378 $ 17 $ 6,720 Real Estate- Mortgage December 31, 2016 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Allowance for loan and lease losses: Ending allowance balance attributable to loans: Individually evaluated for impairment $ 90 $ - $ 251 $ 186 $ - $ 527 Collectively evaluated for impairment 358 172 2,567 2,949 25 6,071 Total ending allowance balance $ 448 $ 172 $ 2,818 $ 3,135 $ 25 $ 6,598
Impaired Financing Receivables [Table Text Block]	March 31, 2017 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial and industrial $ 488 485 - Real estate - construction 706 675 - Real estate - mortgage: Residential 2,296 2,286 - Commercial 1,616 1,610 - Consumer installment 4 4 - Total $ 5,110 $ 5,060 $ - With an allowance recorded: Commercial and industrial $ 1,065 1,060 237 Real estate - construction - - - Real estate - mortgage: Residential 753 749 104 Commercial 5,351 5,319 188 Total $ 7,169 $ 7,128 $ 529 Total: Commercial and industrial $ 1,553 $ 1,545 $ 237 Real estate - construction 706 675 - Real estate - mortgage: Residential 3,049 3,035 104 Commercial 6,967 6,929 188 Consumer installment 4 4 - Total $ 12,279 $ 12,188 $ 529 December 31, 2016 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial and industrial $ 319 $ 318 $ - Real estate - construction 913 909 - Real estate - mortgage: Residential 2,142 2,140 - Commercial 2,031 2,027 - Total $ 5,405 $ 5,394 $ - With an allowance recorded: Commercial and industrial $ 871 $ 868 $ 90 Real estate - construction - - - Real estate - mortgage: Residential 993 991 251 Commercial 5,156 5,147 186 Consumer installment 5 5 - Total $ 7,025 $ 7,011 $ 527 Total: Commercial and industrial $ 1,190 $ 1,186 $ 90 Real estate - construction 913 909 - Real estate - mortgage: Residential 3,135 3,131 251 Commercial 7,187 7,174 186 Consumer installment 5 5 - Total $ 12,430 $ 12,405 $ 527
Schedule of Additional Information Related to Impaired Loans [Table Text Block]	For the Three Months Ended March 31, 2017 Average Recorded Interest Income Investment Recognized Total: Commercial and industrial $ 1,372 $ 84 Real estate - construction 810 - Real estate - mortgage: Residential 3,092 22 Commercial 7,077 88 Consumer installment 5 - $ 12,356 $ 194 For the Three Months Ended March 31, 2016 Average Recorded Interest Income Investment Recognized Total: Commercial and industrial $ 1,337 $ 13 Real estate - construction 1,620 25 Real estate - mortgage: Residential 3,983 36 Commercial 7,719 123 Consumer installment 6 - $ 14,665 $ 197
Financing Receivable Credit Quality Indicators [Table Text Block]	Special Total Pass Mention Substandard Doubtful Loans March 31, 2017 Commercial and industrial $ 85,248 $ 2,051 $ 4,478 $ - $ 91,777 Real estate - construction 29,215 - 23 - 29,238 Real estate - mortgage: Residential 294,284 568 5,656 - 300,508 Commercial 386,346 3,844 4,912 - 395,102 Consumer installment 20,526 - 7 - 20,533 Total $ 815,619 $ 6,463 $ 15,076 $ - $ 837,158 Special Total Pass Mention Substandard Doubtful Loans December 31, 2016 Commercial and industrial $ 58,539 $ 663 $ 1,428 $ - $ 60,630 Real estate - construction 23,541 144 24 - 23,709 Real estate - mortgage: Residential 264,481 428 5,921 - 270,830 Commercial 240,678 4,422 4,390 - 249,490 Consumer installment 4,467 - 14 - 4,481 Total $ 591,706 $ 5,657 $ 11,777 $ - $ 609,140
Past Due Financing Receivables [Table Text Block]	30-59 Days 60-89 Days 90 Days+ Total Total Current Past Due Past Due Past Due Past Due Loans March 31, 2017 Commercial and industrial $ 90,236 $ 1,325 $ 9 $ 207 $ 1,541 $ 91,777 Real estate - construction 29,238 - - - - 29,238 Real estate - mortgage: Residential 296,786 2,767 454 501 3,722 300,508 Commercial 394,255 361 30 456 847 395,102 Consumer installment 20,503 17 13 - 30 20,533 Total $ 831,018 $ 4,470 $ 506 $ 1,164 $ 6,140 $ 837,158 30-59 Days 60-89 Days 90 Days+ Total Total Current Past Due Past Due Past Due Past Due Loans December 31, 2016 Commercial and industrial $ 60,407 $ 17 $ 2 $ 204 $ 223 $ 60,630 Real estate - construction 23,709 - - - - 23,709 Real estate - mortgage: Residential 268,041 1,909 207 673 2,789 270,830 Commercial 249,081 92 - 317 409 249,490 Consumer installment 4,465 - 10 6 16 4,481 Total $ 605,703 $ 2,018 $ 219 $ 1,200 $ 3,437 $ 609,140
Schedule of Financing Receivables, Non Accrual Status [Table Text Block]	March 31, 2017 90+ Days Past Nonaccrual Due and Accruing Commercial and industrial $ 410 $ - Real estate - construction - - Real estate - mortgage: Residential 4,145 35 Commercial 1,990 - Consumer installment - - Total $ 6,545 $ 35 December 31, 2016 90+ Days Past Nonaccrual Due and Accruing Commercial and industrial $ 454 $ - Real estate - construction - - Real estate - mortgage: Residential 4,034 - Commercial 1,409 - Consumer installment 6 - Total $ 5,903 $ -
Schedule of Credit Losses for Financing Receivables, Current [Table Text Block]	Commercial and industrial Real estate- construction Real estate- residential mortgage Real estate- commercial mortgage Consumer installment Total ALLL balance at December 31, 2016 $ 448 $ 172 $ 2,818 $ 3,135 $ 25 $ 6,598 Charge-offs (20 ) - (68 ) (19 ) (101 ) (208 ) Recoveries 78 17 7 - 63 165 Provision 110 (3 ) (234 ) 262 30 165 ALLL balance at March 31, 2017 $ 616 $ 186 $ 2,523 $ 3,378 $ 17 $ 6,720 Commercial and industrial Real estate- construction Real estate- residential mortgage Real estate- commercial mortgage Consumer installment Total ALLL balance at December 31, 2015 $ 867 $ 276 $ 3,139 $ 2,078 $ 25 $ 6,385 Charge-offs (120 ) - (42 ) - (15 ) (177 ) Recoveries 37 - 4 - 3 44 Provision (201 ) (29 ) (385 ) 705 15 105 ALLL balance at March 31, 2016 $ 583 $ 247 $ 2,716 $ 2,783 $ 28 $ 6,357
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	For the Three Months Ended March 31, 2017 Number of Contracts Pre-Modification Post-Modification Term Outstanding Recorded Outstanding Recorded Troubled Debt Restructurings Modification Other Total Investment Investment Commercial and industrial 1 - 1 $ 50 $ 50 Residential real estate 2 - 2 36 36 For the Three Months Ended March 31, 2016 Number of Contracts Pre-Modification Post-Modification Term Outstanding Recorded Outstanding Recorded Troubled Debt Restructurings Modification Other Total Investment Investment Commercial and industrial 2 - 2 $ 33 $ 33 Residential real estate 2 - 2 74 74 Commercial real estate 2 - 2 581 581
Subsequently Defaulted [Member]
Notes Tables
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	For the Three Months Ended March 31, 2017 Troubled Debt Restructurings Number of Recorded subsequently defaulted Contracts Investment Residential real estate 1 $ 33

Note 9 - Business Acquisition (

Note 9 - Business Acquisition (Tables)	3 Months Ended
	Mar. 31, 2017
Notes Tables
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	(In Thousands, Except Per Share Data) Purchase Price Consideration in Common Stock Middlefield Banc Corp shares issued 544,610 Value assigned to Middlefield Banc Corp common share $ 38.55 Purchase price assigned to Liberty Bank common shares exchanged for Middlefield Banc Corp shares 20,995 Purchase Price Consideration in Cash Purchase price assigned to Liberty Bank common shares exchanged for cash 21,173 Total Purchase Price 42,168 Previously held equity interest in Liberty Bank (1,068 ) Net Assets Acquired: Liberty Bank shareholders equity $ 30,097 Adjustments to reflect assets acquired at fair value: Loans Allowance for loan loss 3,257 Core deposit intangible 3,087 Loans - interest rate 578 Loans - general credit (2,161 ) Deferred tax asset (1,104 ) Other 254 Adjustments to reflect liabilities acquired at fair value: Time deposits (141 ) Change in control (1,718 ) 32,149 Goodwill resulting from merger $ 11,087
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	(In Thousands) Total purchase price $ 42,168 Assets (liabilities) acquired: Net assets acquired: Cash 26,604 Loans 200,273 Premises and equipment, net 325 Accrued interest receivable 440 Bank-owned life insurance 1,681 Core deposit intangible 3,087 Deferred tax asset (1,104 ) Other assets 997 Time deposits (30,744 ) Non-time deposits (167,300 ) Accrued interest payable (47 ) Other liabilities (3,131 ) 31,081 Goodwill resulting from the Liberty Bank merger $ 11,087
Business Acquisition, Pro Forma Information [Table Text Block]	Actual From Acquisition Date Through March 31, 2017 (in thousands) Net interest income $ 2,735 Noninterest income 291 Net income $ 98 Pro Formas Three-month period ended March 31, 2017 2016 (in thousands, except per share data) Net interest income $ 9,055 $ 8,330 Noninterest income 1,572 1,157 Net income $ 1,083 $ 1,822 Pro forma earnings per share: Basic $ 0.40 $ 0.97 Diluted $ 0.40 $ 0.97
Merger of Liberty Bank, N.A. into The Middlefield Banking Company [Member]
Notes Tables
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Remaining 2017 280 2018 348 2019 341 2020 332 2021 321 2022 309 2023 296 2024 281 2025 264 2026 253 3,025

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation (Details Textual) - Merger of Liberty Bank, N.A. into The Middlefield Banking Company [Member]	Jan. 12, 2017USD ($)$ / sharesshares
Business Combination, Merger Agreement, Cash Per Share of Reporting Entity Common Stock | $ / shares	$ 37.96
Business Combination, Merger Agreement, Ratio of Shares of Reporting Entity's Common Stock for Each Share of Acquired Entity's Common Stock	1.1934
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	544,610
Business Combination, Consideration Transferred | $	$ 42,168,000

Note 2 - Stock-based Compensa28

Note 2 - Stock-based Compensation (Details Textual) - USD ($) shares in Thousands, $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares	0	0

Note 2 - Stock-based Compensa29

Note 2 - Stock-based Compensation - Stock Option Activity (Details) - $ / shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Outstanding stock options, January 1 (in shares)	29,324	31,949
Outstanding stock options weighted-average exercise price, January 1 (in dollars per share)	$ 19.50	$ 25.03
Exercised stock options (in shares)	(1,562)
Exercised stock options weighted-average exercise price (in dollars per share)	$ 34.34
Outstanding stock options, March 31 (in shares)	27,762	31,949
Outstanding stock options weighted-average exercise price, March 31 (in dollars per share)	$ 23.07	$ 25.03
Exercisable stock options, March 31 (in shares)	27,762	31,949
Exercisable stock options weighted-average exercise price, March 31 (in dollars per share)	$ 23.07	$ 25.03

Note 3 - Earnings Per Share (De

Note 3 - Earnings Per Share (Details Textual) - $ / shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	27,762	31,949	29,324	31,949
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 17.55	$ 17.55
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 37.48	$ 40.24
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	12,199	8,766
Employee Stock Option [Member]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	27,762	7,249

Note 3 - Earnings Per Share - S

Note 3 - Earnings Per Share - Shares Used in Calculation of Earnings Per Share (Details) - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Weighted-average common shares outstanding (in shares)	3,065,981	2,264,342
Average treasury stock shares (in shares)	(386,165)	(386,165)
Weighted-average common shares and common stock equivalents used to calculate basic earnings per share (in shares)	2,679,816	1,878,177
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	12,199	8,766
Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share (in shares)	2,692,015	1,886,943

Note 4 - Fair Value Disclosur32

Note 4 - Fair Value Disclosure Measurements (Details Textual)	3 Months Ended
	Mar. 31, 2017USD ($)
Estimated Selling Costs of Impaired Loans	$ 280,600

Note 4 - Fair Value Disclosur33

Note 4 - Fair Value Disclosure Measurments - Assets Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Investment securities available for sale, at fair value	$ 110,452	$ 114,376
US Government Agencies Debt Securities [Member]
Investment securities available for sale, at fair value	9,827	10,236
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale, at fair value	79,697	81,223
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Investment securities available for sale, at fair value	19,036	20,069
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Investment securities available for sale, at fair value	1,602	1,709
Debt Securities [Member]
Investment securities available for sale, at fair value	110,162	113,237
Equity Securities In Financial Institutions [Member]
Investment securities available for sale, at fair value	290	1,139
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	110,452	114,376
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member]
Investment securities available for sale, at fair value	9,827	10,236
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale, at fair value	79,697	81,223
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Investment securities available for sale, at fair value	19,036	20,069
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-backed Securities, Issued by Private Enterprises [Member]
Investment securities available for sale, at fair value	1,602	1,709
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
Investment securities available for sale, at fair value	110,162	113,237
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities In Financial Institutions [Member]
Investment securities available for sale, at fair value	$ 290	$ 1,139

Note 4 - Fair Value Disclosur34

Note 4 - Fair Value Disclosure Measurements - Assets Measured on a Nonrecurring Basis (Details) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Impaired loans	$ 12,279,000	$ 12,430,000
Other real estate owned	1,600,000	934,000
Estimate of Fair Value Measurement [Member]
Impaired loans	585,000	6,498,000
Other real estate owned	27,000	511,000
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Impaired loans	585,000	6,498,000
Other real estate owned	$ 27,000	$ 511,000

Note 4 - Fair Value Disclosur35

Note 4 - Fair Value Disclosure Measurements - Additional Quantitative Information about Assets Measured at Fair Value on Non-recurring Basis (Details) - Fair Value, Measurements, Nonrecurring [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2017	Dec. 31, 2016
Impaired Loans [Member] | Appraisal Adjustments [Member]
Fair value estimate		$ 585	$ 1,570
Valuation Techniques / Unobservable Input	[1],[2]	Appraisal of collateral / Appraisal adjustments	Appraisal of collateral / appraisal adjustments
Impaired Loans [Member] | Appraisal Adjustments [Member] | Minimum [Member]
Discount rate		3.50%	0.00%
Impaired Loans [Member] | Appraisal Adjustments [Member] | Maximum [Member]
Discount rate		8.30%	59.70%
Impaired Loans [Member] | Appraisal Adjustments [Member] | Weighted Average [Member]
Discount rate		5.60%	28.20%
Impaired Loans [Member] | Income Approach Valuation Technique [Member]
Fair value estimate			$ 4,928
Valuation Techniques / Unobservable Input			Discounted cash flow / discount rate
Impaired Loans [Member] | Income Approach Valuation Technique [Member] | Minimum [Member]
Discount rate			3.10%
Impaired Loans [Member] | Income Approach Valuation Technique [Member] | Maximum [Member]
Discount rate			7.00%
Impaired Loans [Member] | Income Approach Valuation Technique [Member] | Weighted Average [Member]
Discount rate			5.10%
Other Real Estate Owned [Member] | Appraisal Adjustments [Member]
Fair value estimate		$ 27	$ 511
Valuation Techniques / Unobservable Input	[1],[2]	Appraisal of collateral / Appraisal adjustments	Appraisal of collateral / appraisal adjustments
Other Real Estate Owned [Member] | Appraisal Adjustments [Member] | Minimum [Member]
Discount rate		0.00%	0.00%
Other Real Estate Owned [Member] | Appraisal Adjustments [Member] | Maximum [Member]
Discount rate		10.00%	10.00%
[1]	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.
[2]	Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 inputs which are not identifiable, less any associated allowance.

Note 4 - Fair Value Disclosur36

Note 4 - Fair Value Disclosure Measurements - Estimated Fair Value of the Company's Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financial assets:
Investment securities available for sale, at fair value	$ 110,452	$ 114,376
Reported Value Measurement [Member]
Financial assets:
Cash and cash equivalents	62,364	32,495
Investment securities available for sale, at fair value	110,452	114,376
Loans held for sale	9,462	634
Net loans	830,438	602,542
Bank-owned life insurance	15,334	13,540
Federal Home Loan Bank stock	3,589	2,204
Accrued interest receivable	3,068	2,426
Financial liabilities:
Deposits	847,851	629,934
Short-term borrowings	76,213	68,359
Other borrowings	39,388	9,437
Accrued interest payable	427	395
Estimate of Fair Value Measurement [Member]
Financial assets:
Cash and cash equivalents	62,364	32,495
Investment securities available for sale, at fair value	110,452	114,376
Loans held for sale	9,462	634
Net loans	834,096	604,447
Bank-owned life insurance	15,334	13,540
Federal Home Loan Bank stock	3,589	2,204
Accrued interest receivable	3,068	2,426
Financial liabilities:
Deposits	808,942	630,371
Short-term borrowings	76,213	68,359
Other borrowings	16,565	9,512
Accrued interest payable	427	395
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Financial assets:
Cash and cash equivalents	62,364	32,495
Investment securities available for sale, at fair value
Loans held for sale	8,328
Net loans
Bank-owned life insurance	15,334	13,540
Federal Home Loan Bank stock	3,589	2,204
Accrued interest receivable	3,068	2,426
Financial liabilities:
Deposits	603,907	440,500
Short-term borrowings	76,213	68,359
Other borrowings
Accrued interest payable	427	395
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Financial assets:
Cash and cash equivalents
Investment securities available for sale, at fair value	110,452	114,376
Loans held for sale	1,134	634
Net loans
Bank-owned life insurance
Federal Home Loan Bank stock
Accrued interest receivable
Financial liabilities:
Deposits
Short-term borrowings
Other borrowings
Accrued interest payable
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Financial assets:
Cash and cash equivalents
Investment securities available for sale, at fair value
Loans held for sale
Net loans	834,096	604,447
Bank-owned life insurance
Federal Home Loan Bank stock
Accrued interest receivable
Financial liabilities:
Deposits	205,035	189,871
Short-term borrowings
Other borrowings	16,565	9,512
Accrued interest payable

Note 5 - Accumulate Other Compr

Note 5 - Accumulate Other Comprehensive Income - Changes in Accumulated Other Comprehensive Income (Loss) by Component, Net of Tax (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Beginning balance	[1]	$ 1,201	$ 2,395
Other comprehensive income before reclassification	[1]	153	360
Amount reclassified from accumulated other comprehensive income	[1]	(322)	(34)
Period change	[1]	(169)	326
Ending balance	[1]	$ 1,032	$ 2,721
[1]	All amounts are net of tax. Amounts in parentheses indicate debits.

Note 5 - Accumulated Other Co38

Note 5 - Accumulated Other Comprehensive Income - Significant Amounts Reclassified out of Each Component of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Unrealized gains on available-for-sale securities	$ 488	$ 51
Income taxes	(166)	(17)
Net of tax	$ 322	$ 34

Note 6 - Investment Securitie39

Note 6 - Investment Securities Available for Sale (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Available-for-sale Securities Pledged as Collateral	$ 58,400,000	$ 60,300,000
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	67
Available-for-sale Securities, Percentage of Portfolio	98.30%
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held	$ 0
Merger of Liberty Bank, N.A. into The Middlefield Banking Company [Member]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	488,000
Pledged to Secure Deposits and Other Purposes Required by Law [Member]
Restricted Cash	$ 4,500,000

Note 6 - Investment Securitie40

Note 6 - Investment Securities Available for Sale - Amortized Cost and Fair Values of Securities Available for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Amortized cost	$ 108,890	$ 112,557
Gross unrealized gains	2,369	2,702
Gross unrealized losses	(807)	(883)
Investment securities available for sale, at fair value	110,452	114,376
US Government Agencies Debt Securities [Member]
Amortized cost	9,732	10,158
Gross unrealized gains	167	174
Gross unrealized losses	(72)	(96)
Investment securities available for sale, at fair value	9,827	10,236
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale, at fair value	79,697	81,223
US States and Political Subdivisions Debt Securities [Member] | Taxable [Member]
Amortized cost	1,614	1,615
Gross unrealized gains	129	129
Gross unrealized losses	(3)	(4)
Investment securities available for sale, at fair value	1,740	1,740
US States and Political Subdivisions Debt Securities [Member] | Tax Exempt [Member]
Amortized cost	76,804	78,327
Gross unrealized gains	1,658	1,678
Gross unrealized losses	(505)	(522)
Investment securities available for sale, at fair value	77,957	79,483
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Amortized cost	19,091	20,128
Gross unrealized gains	172	202
Gross unrealized losses	(227)	(261)
Investment securities available for sale, at fair value	19,036	20,069
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Amortized cost	1,479	1,579
Gross unrealized gains	123	130
Gross unrealized losses
Investment securities available for sale, at fair value	1,602	1,709
Debt Securities [Member]
Amortized cost	108,720	111,807
Gross unrealized gains	2,249	2,313
Gross unrealized losses	(807)	(883)
Investment securities available for sale, at fair value	110,162	113,237
Equity Securities In Financial Institutions [Member]
Amortized cost	170	750
Gross unrealized gains	120	389
Gross unrealized losses
Investment securities available for sale, at fair value	$ 290	$ 1,139

Note 6 - Investment Securitie41

Note 6 - Investment Securities Available for Sale - Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Due in one year or less, amortized costs	$ 3,922
Due in one year or less, fair value	3,975
Due after one year through five years, amortized costs	9,224
Due after one year through five years, fair value	9,527
Due after five years through ten years, amortized costs	11,400
Due after five years through ten years, fair value	11,793
Due after ten years, amortized costs	84,174
Due after ten years, fair value	84,867
Amortized costs	108,720
Fair Value	110,162
Proceeds from sales		$ 1,322
Gross realized gains	488	51
Gross realized losses

Note 6 - Investment Securitie42

Note 6 - Investment Securities Available for Sale - Gross Unrealized Losses and Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Less than Twelve Months, Fair Value	$ 36,640	$ 36,925
Less than Twelve Months, Gross Unrealized Losses	(657)	(699)
Twelve Months or Greater, Fair Value	5,765	5,754
Twelve Months or Greater, Gross Unrealized Losses	(150)	(184)
Total, Fair Value	42,405	42,679
Total, Gross Unrealized Losses	(807)	(883)
US Government Agencies Debt Securities [Member]
Less than Twelve Months, Fair Value	3,723	3,803
Less than Twelve Months, Gross Unrealized Losses	(35)	(47)
Twelve Months or Greater, Fair Value	1,364	1,316
Twelve Months or Greater, Gross Unrealized Losses	(37)	(49)
Total, Fair Value	5,087	5,119
Total, Gross Unrealized Losses	(72)	(96)
US States and Political Subdivisions Debt Securities [Member] | Taxable [Member]
Less than Twelve Months, Fair Value	506	502
Less than Twelve Months, Gross Unrealized Losses	(3)	(4)
Twelve Months or Greater, Fair Value
Twelve Months or Greater, Gross Unrealized Losses
Total, Fair Value	506	502
Total, Gross Unrealized Losses	(3)	(4)
US States and Political Subdivisions Debt Securities [Member] | Tax Exempt [Member]
Less than Twelve Months, Fair Value	22,979	23,554
Less than Twelve Months, Gross Unrealized Losses	(505)	(522)
Twelve Months or Greater, Fair Value	0	0
Twelve Months or Greater, Gross Unrealized Losses
Total, Fair Value	22,979	23,554
Total, Gross Unrealized Losses	(505)	(522)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Less than Twelve Months, Fair Value	9,432	9,066
Less than Twelve Months, Gross Unrealized Losses	(114)	(126)
Twelve Months or Greater, Fair Value	4,401	4,438
Twelve Months or Greater, Gross Unrealized Losses	(113)	(135)
Total, Fair Value	13,833	13,504
Total, Gross Unrealized Losses	$ (227)	$ (261)

Note 7 - Loans and Related Al43

Note 7 - Loans and Related Allowance for Loan Losses (Details Textual) xbrli-pure in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Loans and Leases Receivable, Deferred Income	$ 3,200,000	$ 1,700,000
Financing Receivable, Modifications, Recorded Investment	1,700,000	6,700,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	$ 462,000	$ 309,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0
Threshold For Loans Evaluated For Impairment [Member]
Loans and Leases Receivable, before Fees, Gross	$ 1,000,000
Threshold For Loans Evaluated For Impairment [Member] | Outside Consultant [Member]
Loans and Leases Receivable, before Fees, Gross	250,000
Threshold For Loans Evaluated For Impairment [Member] | Criticized Relationships [Member]
Financing Receivable, Gross	$ 125,000

Note 7 - Loans and Related Al44

Note 7 - Loans and Related Allowance for Loan Losses - Major Classifications of Net Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable Gross	$ 837,158	$ 609,140
Less: Allowance for loan and lease losses	6,720	6,598	$ 6,357	$ 6,385
Net loans	830,438	602,542
Commercial And Industrial [Member]
Financing Receivable Gross	91,777	60,630
Less: Allowance for loan and lease losses	616	448	583	867
Real Estate Construction Porfolio Segment [Member]
Financing Receivable Gross	29,238	23,709
Less: Allowance for loan and lease losses	186	172	247	276
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Financing Receivable Gross	300,508	270,830
Less: Allowance for loan and lease losses	2,523	2,818	2,716	3,139
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Financing Receivable Gross	395,102	249,490
Less: Allowance for loan and lease losses	3,378	3,135	2,783	2,078
Consumer Portfolio Segment [Member]
Financing Receivable Gross	20,533	4,481
Less: Allowance for loan and lease losses	$ 17	$ 25	$ 28	$ 25

Note 7 - Loans and Related Al45

Note 7 - Loans and Related Allowance for Loan Losses - Primary Segments of the Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Individually evaluated for impairment	$ 12,279	$ 12,430
Collectively evaluated for impairment	824,879	596,710
Total loans	837,158	609,140
Individually evaluated for impairment	529	527
Collectively evaluated for impairment	6,191	6,071
Total ending allowance balance	6,720	6,598	$ 6,357	$ 6,385
Commercial And Industrial [Member]
Individually evaluated for impairment	1,553	1,190
Collectively evaluated for impairment	90,224	59,440
Total loans	91,777	60,630
Individually evaluated for impairment	237	90
Collectively evaluated for impairment	379	358
Total ending allowance balance	616	448	583	867
Real Estate Construction Porfolio Segment [Member]
Individually evaluated for impairment	706	913
Collectively evaluated for impairment	28,532	22,796
Total loans	29,238	23,709
Individually evaluated for impairment
Collectively evaluated for impairment	186	172
Total ending allowance balance	186	172	247	276
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Individually evaluated for impairment	3,049	3,135
Collectively evaluated for impairment	297,459	267,695
Total loans	300,508	270,830
Individually evaluated for impairment	104	251
Collectively evaluated for impairment	2,419	2,567
Total ending allowance balance	2,523	2,818	2,716	3,139
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Individually evaluated for impairment	6,967	7,187
Collectively evaluated for impairment	388,135	242,303
Total loans	395,102	249,490
Individually evaluated for impairment	188	186
Collectively evaluated for impairment	3,190	2,949
Total ending allowance balance	3,378	3,135	2,783	2,078
Consumer Portfolio Segment [Member]
Individually evaluated for impairment	4	5
Collectively evaluated for impairment	20,529	4,476
Total loans	20,533	4,481
Individually evaluated for impairment
Collectively evaluated for impairment	17	25
Total ending allowance balance	$ 17	$ 25	$ 28	$ 25

Note 7 - Loans and Related Al46

Note 7 - Loans and Related Allowance for Loan Losses - Impaired Loans by Class (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Recorded investment, with no related allowance	$ 5,110	$ 5,405
Unpaid principal balance, with no related allowance	5,060	5,394
Recorded investment, with related allowance	7,169	7,025
Unpaid principal balance, with related allowance	7,128	7,011
Related allowance	529	527
Recorded investment	12,279	12,430
Unpaid principal balance	12,188	12,405
Commercial Loans [Member]
Recorded investment, with related allowance	5,351
Unpaid principal balance, with related allowance	5,319
Related allowance	188
Commercial And Industrial [Member]
Recorded investment, with no related allowance	488	319
Unpaid principal balance, with no related allowance	485	318
Recorded investment, with related allowance	1,065	871
Unpaid principal balance, with related allowance	1,060	868
Related allowance	237	90
Recorded investment	1,553	1,190
Unpaid principal balance	1,545	1,186
Real Estate Construction Porfolio Segment [Member]
Recorded investment, with no related allowance	706	913
Unpaid principal balance, with no related allowance	675	909
Recorded investment, with related allowance
Unpaid principal balance, with related allowance
Related allowance
Recorded investment	706	913
Unpaid principal balance	675	909
Real Estate Construction Porfolio Segment [Member] | Residential Loan [Member]
Recorded investment, with related allowance	753
Unpaid principal balance, with related allowance	749
Related allowance	104
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Recorded investment, with no related allowance	2,296	2,142
Unpaid principal balance, with no related allowance	2,286	2,140
Recorded investment, with related allowance		993
Unpaid principal balance, with related allowance		991
Related allowance	104	251
Recorded investment	3,049	3,135
Unpaid principal balance	3,035	3,131
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Recorded investment, with no related allowance	1,616	2,031
Unpaid principal balance, with no related allowance	1,610	2,027
Recorded investment, with related allowance		5,156
Unpaid principal balance, with related allowance		5,147
Related allowance	188	186
Recorded investment	6,967	7,187
Unpaid principal balance	6,929	7,174
Consumer Portfolio Segment [Member]
Recorded investment, with no related allowance		5
Unpaid principal balance, with no related allowance		5
Recorded investment, with related allowance	4	5
Unpaid principal balance, with related allowance	4	$ 5
Related allowance
Recorded investment	4
Unpaid principal balance	$ 4

Note 7 - Loans and Related Al47

Note 7 - Loans and Related Allowance for Loan Losses - Additional Information on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Average recorded investment	$ 12,356	$ 14,665
Interest income recognized	194	197
Commercial And Industrial [Member]
Average recorded investment	1,372	1,337
Interest income recognized	84	13
Real Estate Construction Porfolio Segment [Member]
Average recorded investment	810	1,620
Interest income recognized		25
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Average recorded investment	3,092	3,983
Interest income recognized	22	36
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Average recorded investment	7,077	7,719
Interest income recognized	88	123
Consumer Portfolio Segment [Member]
Average recorded investment	5	6
Interest income recognized

Note 7 - Loans and Related Al48

Note 7 - Loans and Related Allowance for Loan Losses - Classes of the Loan Portfolio Summarized by Credit Quality (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Loans, total	$ 837,158	$ 609,140
Commercial And Industrial [Member]
Loans, total	91,777	60,630
Real Estate Construction Porfolio Segment [Member]
Loans, total	29,238	23,709
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	300,508	270,830
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	395,102	249,490
Consumer Portfolio Segment [Member]
Loans, total	20,533	4,481
Pass [Member]
Loans, total	815,619	591,706
Pass [Member] | Commercial And Industrial [Member]
Loans, total	85,248	58,539
Pass [Member] | Real Estate Construction Porfolio Segment [Member]
Loans, total	29,215	23,541
Pass [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	294,284	264,481
Pass [Member] | Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	386,346	240,678
Pass [Member] | Consumer Portfolio Segment [Member]
Loans, total	20,526	4,467
Special Mention [Member]
Loans, total	6,463	5,657
Special Mention [Member] | Commercial And Industrial [Member]
Loans, total	2,051	663
Special Mention [Member] | Real Estate Construction Porfolio Segment [Member]
Loans, total		144
Special Mention [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	568	428
Special Mention [Member] | Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	3,844	4,422
Substandard [Member]
Loans, total	15,076	11,777
Substandard [Member] | Commercial And Industrial [Member]
Loans, total	4,478	1,428
Substandard [Member] | Real Estate Construction Porfolio Segment [Member]
Loans, total	23	24
Substandard [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	5,656	5,921
Substandard [Member] | Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	4,912	4,390
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans, total	7	$ 14
Doubtful [Member]
Loans, total
Doubtful [Member] | Commercial And Industrial [Member]
Loans, total
Doubtful [Member] | Real Estate Construction Porfolio Segment [Member]
Loans, total
Doubtful [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total
Doubtful [Member] | Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total

Note 7 - Loans and Related Al49

Note 7 - Loans and Related Allowance for Loan Losses - Past Due Financing Receivables (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Loans, current balance	$ 831,018	$ 605,703
Loans, past due	6,140	3,437
Loans, total	837,158	609,140
Financing Receivables, 30 to 59 Days Past Due [Member]
Loans, past due	4,470	2,018
Financing Receivables, 60 to 89 Days Past Due [Member]
Loans, past due	506	219
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans, past due	1,164	1,200
Commercial And Industrial [Member]
Loans, current balance	90,236	60,407
Loans, past due	1,541	223
Loans, total	91,777	60,630
Commercial And Industrial [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans, past due	1,325	17
Commercial And Industrial [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans, past due	9	2
Commercial And Industrial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans, past due	207	204
Real Estate Construction Porfolio Segment [Member]
Loans, current balance	29,238	23,709
Loans, past due	0	0
Loans, total	29,238	23,709
Real Estate Construction Porfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans, past due	0	0
Real Estate Construction Porfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans, past due	0	0
Real Estate Construction Porfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans, past due	0	0
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, current balance	296,786	268,041
Loans, past due	3,722	2,789
Loans, total	300,508	270,830
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, current balance	394,255	249,081
Loans, past due	847	409
Loans, total	395,102	249,490
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Residential Loan [Member]
Loans, past due	2,767	1,909
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Loans [Member]
Loans, past due	361	92
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Residential Loan [Member]
Loans, past due	454	207
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Loans [Member]
Loans, past due	30
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Residential Loan [Member]
Loans, past due	501	673
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Loans [Member]
Loans, past due	456	317
Consumer Portfolio Segment [Member]
Loans, current balance	20,503	4,465
Loans, past due	30	16
Loans, total	20,533	4,481
Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans, past due	17
Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans, past due	13	10
Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans, past due		$ 6

Note 7 - Loans and Related Al50

Note 7 - Loans and Related Allowance for Loan Losses - Classes of the Loan Portfolio Summarized by Nonaccrual Loans and Still Accruing (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Loans, nonacrrual status	$ 6,545	$ 5,903
Loans, 90+ days past due and accruing	35
Commercial And Industrial [Member]
Loans, nonacrrual status	410	454
Loans, 90+ days past due and accruing	0	0
Real Estate Construction Porfolio Segment [Member]
Loans, nonacrrual status
Loans, 90+ days past due and accruing	0	0
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, nonacrrual status	4,145	4,034
Loans, 90+ days past due and accruing	35	0
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, nonacrrual status	1,990	1,409
Loans, 90+ days past due and accruing	0	0
Consumer Portfolio Segment [Member]
Loans, nonacrrual status		6
Loans, 90+ days past due and accruing	$ 0

Note 7 - Loans and Related Al51

Note 7 - Loans and Related Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
ALLL balance, period start	$ 6,598	$ 6,385
Charge-offs	(208)	(177)
Recoveries	165	44
Provision	165	105
ALLL balance, period end	6,720	6,357
Commercial And Industrial [Member]
ALLL balance, period start	448	867
Charge-offs	(20)	(120)
Recoveries	78	37
Provision	110	(201)
ALLL balance, period end	616	583
Real Estate Construction Porfolio Segment [Member]
ALLL balance, period start	172	276
Charge-offs
Recoveries	17
Provision	(3)	(29)
ALLL balance, period end	186	247
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
ALLL balance, period start	2,818	3,139
Charge-offs	(68)	(42)
Recoveries	7	4
Provision	(234)	(385)
ALLL balance, period end	2,523	2,716
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
ALLL balance, period start	3,135	2,078
Charge-offs	(19)
Recoveries
Provision	262	705
ALLL balance, period end	3,378	2,783
Consumer Portfolio Segment [Member]
ALLL balance, period start	25	25
Charge-offs	(101)	(15)
Recoveries	63	3
Provision	30	15
ALLL balance, period end	$ 17	$ 28

Note 7 - Loans and Related Al52

Note 7 - Loans and Related Allowance for Loan Losses - Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)	Mar. 31, 2016USD ($)
Commercial And Industrial [Member]
Number of contracts	1	2
Pre-modification outstanding recorded investment	$ 50	$ 33
Post-modification outstanding recorded investment	$ 50	$ 33
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Number of contracts	2	2
Pre-modification outstanding recorded investment	$ 36	$ 74
Post-modification outstanding recorded investment	$ 36	$ 74
Commercial Real Estate Portfolio Segment [Member]
Number of contracts		2
Pre-modification outstanding recorded investment		$ 581
Post-modification outstanding recorded investment		$ 581
Extended Maturity [Member] | Commercial And Industrial [Member]
Number of contracts	1	2
Extended Maturity [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Number of contracts	2	2
Extended Maturity [Member] | Commercial Real Estate Portfolio Segment [Member]
Number of contracts		2
Other Restructurings [Member] | Commercial And Industrial [Member]
Number of contracts
Other Restructurings [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Number of contracts
Other Restructurings [Member] | Commercial Real Estate Portfolio Segment [Member]
Number of contracts

Note 7 - Loans and Related Al53

Note 7 - Loans and Related Allowance for Loan Losses - Troubled Debt Restructurings Subsequently Defaulted (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)
Number of contracts subsequently defaulted	0
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Number of contracts subsequently defaulted	1
Recorded investment subsequently defaulted	$ 33

Note 8 - Other Real Estate Ow54

Note 8 - Other Real Estate Owned ("OREO") (Details Textual) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Real Estate Acquired Through Foreclosure	$ 1,600,000	$ 934,000

Note 9 - Business Acquisition55

Note 9 - Business Acquisition (Details Textual) - USD ($)	Jan. 12, 2017	Mar. 31, 2017	Dec. 31, 2016
Goodwill		$ 15,646,000	$ 4,559,000
Merger of Liberty Bank, N.A. into The Middlefield Banking Company [Member]
Business Acquisition, Percentage of Voting Interests Acquired		100.00%
Business Combination, Consideration Transferred	$ 42,168,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	544,610
Payments to Acquire Businesses, Gross	$ 21,173,000
Shares Issued, Price Per Share	$ 38.55
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain		$ 488,000
Goodwill	$ 11,087,000
Goodwill, Impairment Loss		0
Finite-Lived Core Deposits, Gross		3,025,000
Business Combination, Acquisition Related Costs		467,000
Merger of Liberty Bank, N.A. into The Middlefield Banking Company [Member] | Core Deposits [Member]
Finite-Lived Intangible Assets, Accumulated Amortization		$ 62,000

Note 9 - Business Acquisition -

Note 9 - Business Acquisition - Purchase Price and Adjustments (Details) - USD ($)	Jan. 12, 2017	Mar. 31, 2017	Dec. 31, 2016
Net assets acquired:
Goodwill		$ 15,646,000	$ 4,559,000
Merger of Liberty Bank, N.A. into The Middlefield Banking Company [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	544,610
Shares Issued, Price Per Share	$ 38.55
Purchase price assigned to Liberty Bank common shares exchanged for Middlefield Banc Corp shares	$ 20,995,000
us-gaap_BusinessCombinationConsiderationTransferredIncludingEquityInterestInAcquireeHeldPriorToCombinationAbstract
Payments to Acquire Businesses, Gross	21,173,000
Business Combination, Consideration Transferred	42,168,000
Previously held equity interest in Liberty Bank	(1,068,000)
Net assets acquired:
Liberty Bank shareholders equity	30,097,000
Allowance for loan loss	3,257,000
Core deposit intangible	3,087
Loans - interest rate	578,000
Loans - general credit	(2,161,000)
Deferred tax asset	(1,104,000)
Other	254,000
Time deposits	(141,000)
Change in control	(1,718,000)
	32,149,000
Goodwill	$ 11,087,000

Note 9 - Business Acquisition57

Note 9 - Business Acquisition - Assets Acquired and Liabilities Assumed (Details) - USD ($)	Mar. 31, 2017	Jan. 12, 2017	Dec. 31, 2016
Net assets acquired:
Goodwill	$ 15,646,000		$ 4,559,000
Merger of Liberty Bank, N.A. into The Middlefield Banking Company [Member]
Total purchase price		$ 42,168,000
Net assets acquired:
Cash		26,604,000
Loans		200,273,000
Premises and equipment, net		325,000
Accrued interest receivable		440,000
Bank-owned life insurance		1,681,000
Core deposit intangible		3,087,000
Deferred tax asset		(1,104,000)
Other assets		997,000
Time deposits		(30,744,000)
Non-time deposits		(167,300,000)
Accrued interest payable		(47,000)
Other liabilities		(3,131,000)
		31,081,000
Goodwill		$ 11,087,000

Note 9 - Business Acquisition58

Note 9 - Business Acquisition - Schedule of Future Amortization Expenses for Core Deposits Intangibles (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
	$ 3,051	$ 36
Merger of Liberty Bank, N.A. into The Middlefield Banking Company [Member] | Core Deposits [Member]
Remaining 2,017	280
2,018	348
2,019	341
2,020	332
2,021	321
2,022	309
2,023	296
2,024	281
2,025	264
2,026	253
	$ 3,025

Note 9 - Business Acquisition59

Note 9 - Business Acquisition - Pro Forma Information (Details) - Merger of Liberty Bank, N.A. into The Middlefield Banking Company [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2017	Mar. 31, 2016
Net interest income	$ 2,735
Noninterest income	291
Net income	$ 98
Net interest income		$ 9,055	$ 8,330
Noninterest income		1,572	1,157
Net income		$ 1,083	$ 1,822
Basic pro forma (in dollars per share)		$ 0.40	$ 0.97
Diluted pro forma (in dollars per share)		$ 0.40	$ 0.97

Note 10 - Subsequent Event (Det

Note 10 - Subsequent Event (Details Textual) - USD ($)	May 09, 2017	Mar. 31, 2017	Dec. 31, 2016
Common Stock, No Par Value		$ 0	$ 0
Subsequent Event [Member]
Common Stock, No Par Value	$ 0
Proceeds from Issuance of Private Placement	$ 16,000,000
Private Placement [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues	400,000
Shares Issued, Price Per Share	$ 40
Accrued Professional Fees	$ 760,000