Middlefield Banc (MBCN) 10-Q 9 May 18 2018 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2018	May 09, 2018
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	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		3,224,499
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Amendment Flag	false

Consolidated Balance Sheet (Cur

Consolidated Balance Sheet (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 33,258	$ 39,886
Equity securities, at fair value	643
Investment securities available for sale, at fair value	91,262	95,283
Loans held for sale	937	463
Loans	932,374	923,213
Less allowance for loan and lease losses	7,551	7,190
Net loans	924,823	916,023
Premises and equipment, net	12,225	11,853
Goodwill	15,071	15,071
Core deposit intangibles	2,658	2,749
Bank-owned life insurance	15,764	15,652
Other real estate owned	212	212
Accrued interest receivable and other assets	9,911	9,144
TOTAL ASSETS	1,106,764	1,106,336
LIABILITIES
Noninterest-bearing demand	194,203	192,438
Interest-bearing demand	96,659	83,990
Money market	149,359	150,277
Savings	221,851	208,502
Time	282,501	242,987
Total deposits	944,573	878,194
Short-term borrowings	18,671	74,707
Other borrowings	19,028	29,065
Accrued interest payable and other liabilities	4,340	4,507
TOTAL LIABILITIES	986,612	986,473
STOCKHOLDERS' EQUITY
Common stock, no par value; 10,000,000 shares authorized, 3,609,149 and 3,603,881 shares issued; 3,222,984 and 3,217,716 shares outstanding	85,116	84,859
Retained earnings	48,927	47,431
Accumulated other comprehensive (loss) income	(373)	1,091
Treasury stock, at cost; 386,165 shares	(13,518)	(13,518)
TOTAL STOCKHOLDERS' EQUITY	120,152	119,863
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 1,106,764	$ 1,106,336

Consolidated Balance Sheet (Cu3

Consolidated Balance Sheet (Current Period Unaudited) (Parentheticals) - $ / shares $ / shares in Thousands	Mar. 31, 2018	Dec. 31, 2017
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)	3,609,149	3,603,881
Common stock, shares outstanding (in shares)	3,222,984	3,217,716
Treasury stock, shares (in shares)	386,165	386,165

Consolidated Statement of Incom

Consolidated Statement of Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
INTEREST AND DIVIDEND INCOME
Interest and fees on loans		$ 11,054	$ 9,180
Interest-bearing deposits in other institutions		119	49
Federal funds sold		14	3
Investment securities:
Taxable interest		169	218
Tax-exempt interest		525	637
Dividends on stock		59	112
Total interest and dividend income		11,940	10,199
INTEREST EXPENSE
Deposits		1,640	1,125
Short-term borrowings		276	177
Other borrowings		122	140
Total interest expense		2,038	1,442
NET INTEREST INCOME		9,902	8,757
Provision for loan losses		210	165
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES		9,692	8,592
NONINTEREST INCOME
Investment securities gains on sale, net	[1]		488
Gain on equity securities	[1]	18
Earnings on bank-owned life insurance	[1]	112	109
Gain on sale of loans	[1]	4	234
Total noninterest income		786	1,511
NONINTEREST EXPENSE
Salaries and employee benefits		3,979	3,696
Occupancy expense		536	488
Equipment expense		233	281
Data processing costs		477	320
Ohio state franchise tax		115	186
Federal deposit insurance expense		150	68
Professional fees		445	373
Advertising expense		228	248
Core deposit intangible amortization		91	72
Merger expense			387
Other expense		1,091	1,148
Total noninterest expense		7,345	7,267
Income before income taxes		3,133	2,836
Income taxes		528	736
NET INCOME		$ 2,605	$ 2,100
EARNINGS PER SHARE
Basic (in dollars per share)		$ 0.81	$ 0.78
Diluted (in dollars per share)		0.80	0.78
DIVIDENDS DECLARED PER SHARE (in dollars per share)		$ 0.33	$ 0.27
Deposit Account [Member]
NONINTEREST INCOME
Noninterest income revenue		$ 453	$ 469
Financial Service, Other [Member]
NONINTEREST INCOME
Noninterest income revenue		$ 199	$ 211
[1]	Not within scope of ASC 606.

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net income	$ 2,605	$ 2,100
Other comprehensive loss:
Net unrealized holding (loss) gain on available-for-sale investment securities	(1,912)	231
Tax effect	402	(78)
Reclassification adjustment for investment securities gains included in net income		(488)
Tax effect		166
Total other comprehensive income (loss)	(1,510)	(169)
Comprehensive income	$ 1,095	$ 1,931

Consolidated Statement of Chang

Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Net income					$ 2,100
Other comprehensive loss					$ (169)
Balance (in shares) at Dec. 31, 2017	84,859				3,217,716
Balance at Dec. 31, 2017		$ 47,431	$ 1,091	$ (13,518)	$ 119,863
Change in accounting principle, ASC 2016-01		141	(141)
Change in accounting principle, ASC 2018-02		(187)	187
Net income		2,605			2,605
Other comprehensive loss			(1,510)		(1,510)
Dividend reinvestment and purchase plan, shares (in shares)	161	3,278
Dividend reinvestment and purchase plan (3,278 shares)					161
Stock-based compensation expense (1,990 shares) (in shares)	96	1,990
Stock-based compensation expense (1,990 shares)					96
Cash dividends ($0.33 per share)		(1,063)			$ (1,063)
Balance (in shares) at Mar. 31, 2018	85,116				3,222,984
Balance at Mar. 31, 2018		$ 48,927	$ (373)	$ (13,518)	$ 120,152

Consolidated Statement of Chan7

Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (Parentheticals)	3 Months Ended
	Mar. 31, 2018$ / sharesshares
Retained Earnings [Member]
Dividend reinvestment and purchase plan, shares (in shares) | shares	3,278
Stock-based compensation expense, shares (in shares) | shares	1,990
Cash dividends, per share (in dollars per share) | $ / shares	$ 0.33
Cash dividends, per share (in dollars per share) | $ / shares	$ 0.33

Consolidated Statement of Cash

Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
OPERATING ACTIVITIES
Net income		$ 2,605	$ 2,100
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for loan losses		210	165
Investment securities gains on sale, net	[1]		(488)
Gain on equity securities	[1]	(18)
Depreciation and amortization of premises and equipment, net		231	308
Amortization of premium and discount on investment securities, net		104	124
Accretion of deferred loan fees, net		(341)	(185)
Amortization of core deposit intangibles		91	72
Stock-based compensation expense		96
Origination of loans held for sale		(1,783)	(2,321)
Proceeds from sale of loans		1,313	1,921
Gain on sale of loans		(4)	(100)
Origination of student loans held for sale			(95,679)
Proceeds from sale of student loans			93,438
Gain on sale of student loans			(134)
Earnings on bank-owned life insurance	[1]	(112)	(109)
Deferred income tax		131	(1,116)
Net gain loss on other real estate owned			(56)
Decrease (increase) in accrued interest receivable		19	(199)
Decrease in accrued interest payable		(5)	(14)
Other, net		(587)	547
Net cash provided by (used in) operating activities		1,950	(1,726)
INVESTING ACTIVITIES
Proceeds from repayments and maturities		1,380	3,544
Increase in loans, net		(8,669)	(34,533)
Proceeds from the sale of other real estate owned			333
Purchase of bank-owned life insurance			(4)
Purchase of premises and equipment		(603)	(179)
Purchase of restricted stock		(90)	(899)
Redemption of restricted stock			795
Acquisition, net of cash paid			5,431
Net cash used in investing activities		(7,982)	(25,512)
FINANCING ACTIVITIES
Net increase in deposits		66,379	19,873
(Decrease) increase in short-term borrowings, net		(56,036)	7,854
Repayment of other borrowings		(10,037)	(49)
Proceeds from other borrowings			30,000
Proceeds from common stock issued			53
Proceeds from dividend reinvestment and purchase plan		161	132
Cash dividends		(1,063)	(756)
Net cash (used in) provided by financing activities		(596)	57,107
(Decrease) increase in cash and cash equivalents		(6,628)	29,869
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD		39,886	32,495
CASH AND CASH EQUIVALENTS AT END OF PERIOD		33,258	62,364
Cash paid during the year for:
Interest on deposits and borrowings		2,043	1,456
Noncash investing transactions:
Transfers from loans to other real estate owned			977
Common stock issued in business acquisition			20,995
Transfer of equity securities from investment securities available for sale, at fair value		(625)
Liabilities assumed
Cash and cash equivalents acquired, net			5,431
Merger of Liberty Bank, N.A. into The Middlefield Banking Company [Member]
INVESTING ACTIVITIES
Acquisition, net of cash paid			5,431
Noncash assets acquired
Loans			195,388
Loans held for sale			5,953
Premises and equipment, net			325
Accrued interest receivable			440
Bank-owned life insurance			1,681
Core deposit intangible			3,087
Other assets			997
Goodwill			10,740
Total noncash assets acquired			218,611
Liabilities assumed
Time deposits			(30,744)
Deposits other than time deposits			(167,300)
Accrued interest payable			(47)
Deferred taxes			(1,134)
Other liabilities			(2,754)
Total liabilities assumed			(201,979)
Liberty stock acquired in business combination			(1,068)
Net noncash assets acquired			15,564
Cash and cash equivalents acquired, net			$ 5,431
[1]	Not within scope of ASC 606.

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Significant Accounting Policies [Text Block]	NOTE 1 The consolidated financial statements of Middlefield Banc Corp. ("Company") include its bank subsidiary, The Middlefield Banking Company (“MBC” or “Middlefield Bank”), and a nonbank asset resolution subsidiary EMORECO, Inc. All significant inter-company items have been eliminated. The accompanying unaudited financial statements have been prepared in accordance with U.S. generally accepted accounting principles and the instructions for Form 10 10 X. December 31, 2017, not 10 December 31, 2017. not Recent Accounting Pronouncements – In February 2016, 2016 02, Leases (Topic 842 one 12 not may December 15, 2018, December 15, 2019, December 15, 2020. may not 1 In June 2016, 2016 13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments ( “ CECL ” ) 2016 13 December 15, 2019, December 15, 2018. first 12 January 1, 2020. In February 2018, 2018 03, 825 10 2016 01. 1 may 820, 820. 2 3 4 825 10 45 5 815 15, 825 10, 5 first 6 2016 01 944, December 15, 2017, June 15, 2018. December 15, 2017, June 15, 2018, not June 15, 2018, June 15, 2018, December 15, 2018, not 2016 01. 2016 01. may December 15, 2017, 2016 01. ASU 2018 04, 320 980 No. 117 No. 33 9273, 2018 04 No. 117.

Note 2 - Revenue Recognition

Note 2 - Revenue Recognition	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	NOTE 2 – REVENUE RECOGNITION Effective January 1, 2017, 2014 09 Revenue from Contracts with Customers-Topic 606 606. no not Management determined that the primary sources of revenue, which emanate from interest income on loans and investments, along with noninterest revenue resulting from investment security gains, gains on the sale of loans, and BOLI income, are not 606. no 93.4% The main types of noninterest income within the scope of the standard are as follows: Servic e charges on deposit accounts Gains (losses) on sale of other real estate owned not The following table depicts the disaggregation of revenue derived from contracts with customers to depict the nature, amount, timing, and uncertainty of revenue and cash flows for the three March 31: Noninterest Income 2018 2017 (Dollar amounts in thousands) Service charges on deposit accounts: Overdraft fees $ 193 $ 192 ATM banking fees 201 114 Service charges and other fees 59 163 Investment securities gains on sale, net (a) - 488 Equity securities, unrealized gains (a) 18 - Earnings on bank-owned life insurance (a) 112 109 Gain on sale of loans (a) 4 234 Other income 199 211 Total noninterest income $ 786 $ 1,511 (a) Not 606.

Note 3 - Stock-based Compensati

Note 3 - Stock-based Compensation	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Compensation and Employee Benefit Plans [Text Block]	NOTE 3 - STOCK-BASED COMPENSATION The Company had no March 31, 2018 2017. Stock option activity during the three March 31 Weighted- average Exercise Price Shares Per Share Outstanding, January 1, 2018 19,750 $ 20.94 Exercised (1,500 ) 23.00 Outstanding, March 31, 2018 18,250 $ 20.78 Exercisable, March 31, 2018 18,250 $ 20.78 The following table presents the activity during the three March 31, 2018 Weighted- average Grant Date Fair Shares Value Per Share Nonvested at January 1, 2018 14,601 $ 35.14 Granted - - Forfeited - - Nonvested at March 31, 2018 14,601 $ 35.14 Expected to vest at March 31, 2018 14,601 $ 35.14 Share-based compensation expense of $55,000 $48,000 three March 31, 2018 2017, The expected remaining compensation expense that will be recognized on restricted stock totals $199,000, $127,000 2018 $72,000 2019.

Note 4 - Earnings Per Share

Note 4 - Earnings Per Share	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Earnings Per Share [Text Block]	NOTE 4 - EARNINGS PER SHARE The Company provides dual presentation of basic and diluted earnings per share. Basic earnings per share is calculated by dividing net income by the average shares outstanding. Diluted earnings per share adds the dilutive effects of stock options 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, 2018 2017 Weighted-average common shares outstanding 3,606,427 3,065,981 Average treasury stock shares (386,165 ) (386,165 ) Weighted-average common shares and common stock equivalents used to calculate basic earnings per share 3,220,262 2,679,816 Additional common stock equivalents (stock options and restricted stock) used to calculate diluted earnings per share 17,807 12,199 Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share 3,238,069 2,692,015 Options to purchase 18,250 $17.55 $23.00, three March 31, 2018. 14,601 None Options to purchase 27,762 $17.55 $37.48, three March 31, 2017. 15,800 None

Note 5 - Fair Value Measurement

Note 5 - Fair Value Measurements	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Fair Value Disclosures [Text Block]	NOTE 5 - FAIR VALUE MEASUREMENTS 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 not 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, 2018 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: U.S. government agency securities $ - $ 8,305 $ - $ 8,305 Obligations of states and political subdivisions - 65,579 - 65,579 Mortgage-backed securities in government-sponsored entities - 17,378 - 17,378 Total debt securities - 91,262 - 91,262 Equity securities in financial institutions 393 250 - 643 Total $ 393 $ 91,512 $ - $ 91,905 December 31, 2017 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: U.S. government agency securities $ - $ 8,719 $ - $ 8,719 Obligations of states and political subdivisions - 67,429 - 67,429 Mortgage-backed securities in government-sponsored entities - 18,510 - 18,510 Total debt securities - 94,658 - 94,658 Equity securities in financial institutions - 625 - 625 Total $ - $ 95,283 $ - $ 95,283 I nvestment Securities Available for S ale Equity Securities no not March 31, 2018. Impaired Loans third may not not $573,000 March 31, 2018. Other Real Estate Owned (OREO) no not not may 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. Collateral-dependent impaired loans are carried at fair value if they have been charged down to fair value or if a specific valuation allowance has been established. A new cost basis is established at the time a property is initially recorded in OREO. OREO properties are carried at fair value if a devaluation has been taken to the property’s value subsequent to the initial measurement. March 31, 2018 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ - $ - $ 1,734 $ 1,734 December 31, 2017 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ - $ - $ 3,072 $ 3,072 Other real estate owned - - 32 32 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, 2018 Impaired loans $ 1,734 Appraisal of collateral (1) Appraisal adjustments (2) 0% to 100.0% (40.58%) Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Fair Value Estimate Valuation Techniques Unobservable Input Range (Weighted Average) December 31, 2017 Impaired loans $ 3,072 Appraisal of collateral (1) Appraisal adjustments (2) 0% to 86.1% (13.8%) Other real estate owned $ 32 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 III inputs which are not ( 2 Appraisals may The estimated fair value of the Company’s financial instruments not March 31, 2018 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Cash and cash equivalents (1) $ 33,258 $ 33,258 $ - $ - $ 33,258 Loans held for sale 937 - 937 - 937 Net loans 924,823 - - 916,073 916,073 Bank-owned life insurance (1) 15,764 15,764 - - 15,764 Federal Home Loan Bank stock (1) 3,679 3,679 - - 3,679 Accrued interest receivable (1) 3,269 3,269 - - 3,269 Financial liabilities: Deposits $ 944,573 $ 662,072 $ - $ 279,850 $ 941,922 Short-term borrowings (1) 18,671 18,671 - - 18,671 Other borrowings 19,028 - - 19,030 19,030 Accrued interest payable (1) 573 573 - - 573 ( 1 March 31, 2018, December 31, 2017 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Cash and cash equivalents $ 39,886 $ 39,886 $ - $ - $ 39,886 Loans held for sale 463 - 463 - 463 Net loans 916,023 - - 913,323 913,323 Bank-owned life insurance 15,652 15,652 - - 15,652 Federal Home Loan Bank stock 3,589 3,589 - - 3,589 Accrued interest receivable 3,288 3,288 - - 3,288 Financial liabilities: Deposits $ 878,194 $ 635,207 $ - $ 242,020 $ 877,227 Short-term borrowings 74,707 74,707 - - 74,707 Other borrowings 29,065 - - 29,069 29,069 Accrued interest payable 578 578 - - 578

Note 6 - Accumulated Other Comp

Note 6 - Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Comprehensive Income (Loss) Note [Text Block]	NOTE 6 – ACCUMULATED OTHER COMPREHENSIVE INCOME The following tables present the changes in accumulated other comprehensive income by component net of tax for the three March 31, 2018 2017, (Dollars in thousands) Unrealized gains on available-for-sale securities (a) Balance as of December 31, 2017 $ 1,091 Other comprehensive (loss) before reclassification (1,510 ) Change in accounting principle, ASC 2016-01 (b) (141 ) Change in accounting principle, ASC 2018-02 (b) 187 Period change (1,464 ) Balance at March 31, 2018 $ (373 ) (Dollars in thousands) Unrealized gains on available-for-sale 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 (a) All amounts are net of tax. Amounts in parentheses indicate debits to accumulated other comprehensive income. (b) Reclassifications are the result of the adoption of ASUs 2016 01 2018 02 January 1, 2018. The following tables present significant amounts reclassified from or to each component of accumulated other comprehensive income: Amounts Reclassified from Accumulated Other Comprehensive Affected Line Item in Income the Statement Where (Dollars in thousands) For the Three Months Ended Net Income is Details about other comprehensive income March 31, 2018 March 31, 2017 Presented Unrealized gains on available-for-sale securities (a) $ - $ 488 Investment securities gains on sale, net - (166 ) Income taxes $ - $ 322 (a) For unrealized gains on available-for-sale securities, amounts in parentheses indicate expenses and other amounts indicate income.

Note 7 - Investment and Equity

Note 7 - Investment and Equity Securities	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	NOTE 7 – INVESTMENT AND EQUITY SECURITIES The amortized cost and fair values of investment securities are as follows: March 31, 2018 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value U.S. government agency securities $ 8,342 $ 70 $ (107 ) $ 8,305 Obligations of states and political subdivisions: Taxable 504 14 - 518 Tax-exempt 64,986 829 (754 ) 65,061 Mortgage-backed securities in government-sponsored entities 17,900 66 (588 ) 17,378 Total $ 91,732 $ 979 $ (1,449 ) $ 91,262 December 31, 2017 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value U.S. government agency securities $ 8,664 $ 126 $ (71 ) $ 8,719 Obligations of states and political subdivisions: Taxable 504 8 - 512 Tax-exempt 65,408 1,547 (38 ) 66,917 Mortgage-backed securities in government-sponsored entities 18,640 157 (287 ) 18,510 Total debt securities 93,216 1,838 (396 ) 94,658 Equity securities in financial institutions 415 210 - 625 Total $ 93,631 $ 2,048 $ (396 ) $ 95,283 The following table presents the carrying amount of the Company’s equity investments without readily determinable fair values the annual and cumulative amount of impairment, and the annual and cumulative amount of observable price changes for orderly transactions for the identical or a similar investment of the same issuer: 2018 Year-to-Date Life-to-Date Amortized cost $ 232 $ 232 Impairment - - Observable price changes 18 18 Carrying value $ 250 $ 250 The following table presents the net gains and losses on the Company’s equity investments recognized in earnings during the three March 31, 2018, March 31, 2018. 2018 (Dollar amounts in thousands) Net gains recognized in equity securities during the period $ 18 Less: Net gains realized on the sale of equity securities during the period - Unrealized gains recognized in equity securities held at reporting date $ 18 The amortized cost and fair value of debt securities at March 31, 2018, may Amortized Fair (Dollar amounts in thousands) Cost Value Due in one year or less $ 4,252 $ 4,303 Due after one year through five years 7,607 7,713 Due after five years through ten years 12,489 12,420 Due after ten years 67,384 66,826 Total $ 91,732 $ 91,262 Proceeds from the sales of investment securities and the gross realized gains and losses are as follows: For the Three Months (Dollar amounts in thousands) Ended March 31, 2018 2017 Proceeds from sales $ - $ - Gross realized gains - 488 (1) Gross realized losses - - ( 1 $488,000, three March 31, 2017. Investment securities with an approximate carrying value of $61.7 $57.9 March 31, 2018 December 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, 2018 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 $ 548 $ (12 ) $ 3,899 $ (95 ) $ 4,447 $ (107 ) Obligations of states and political subdivisions: Tax-exempt 25,087 (660 ) 2,721 (94 ) 27,808 (754 ) Mortgage-backed securities in government-sponsored entities 5,941 (203 ) 8,136 (385 ) 14,077 (588 ) Total $ 31,576 $ (875 ) $ 14,756 $ (574 ) $ 46,332 $ (1,449 ) December 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 $ 557 $ (4 ) $ 4,036 $ (67 ) $ 4,593 $ (71 ) Obligations of states and political subdivisions: Tax-exempt 1,009 (6 ) 2,784 (32 ) 3,793 (38 ) Mortgage-backed securities in government-sponsored entities 5,698 (71 ) 8,734 (216 ) 14,432 (287 ) Total $ 7,264 $ (81 ) $ 15,554 $ (315 ) $ 22,818 $ (396 ) There were 82 March 31, 2018. 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 not 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 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 not” not Debt securities issued by U.S. government agencies, U.S. government-sponsored enterprises, and state and political subdivisions accounted for 100% March 31, 2018 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, 2018 2017, no not March 31, 2018 December 31, 2017 not

Note 8 - Loans and Related Allo

Note 8 - Loans and Related Allowance for Loan and Lease Losses	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	NOTE 8 - LOANS AND RELATED ALLOWANCE FOR LOAN AND LEASE LOSSES Major classifications of loans are summarized as follows (in thousands): March 31, December 31, 2018 2017 Commercial and industrial $ 99,809 $ 101,346 Real estate - construction 48,687 47,017 Real estate - mortgage: Residential 316,856 318,157 Commercial 448,766 437,947 Consumer installment 18,256 18,746 932,374 923,213 Less: Allowance for loan and lease losses (7,551 ) (7,190 ) Net loans $ 924,823 $ 916,023 The amounts above include deferred loan origination costs of $1.5 March 31, 2018 December 31, 2017. 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. 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 on the accrual method. The accrual of interest is discontinued on a loan when management believes, after considering economic and business conditions, the borrower’s financial condition is such that collection of interest is doubtful. Interest received on nonaccrual loans is recorded as income or applied against principal according to management’s judgment as to the collectability of such principal. Loan origination fees and certain direct loan origination costs are deferred with the net amount amortized over the contractual life of the loan as an adjustment of the related loan’s yield. The following tables summarize the primary segments of the loan portfolio and allowance for loan and lease losses (in thousands): Real Estate- Mortgage March 31, 2018 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Loans: Individually evaluated for impairment $ 8,884 $ - $ 2,716 $ 6,617 $ 3 $ 18,220 Collectively evaluated for impairment 90,925 48,687 314,140 442,149 18,253 914,154 Total loans $ 99,809 $ 48,687 $ 316,856 $ 448,766 $ 18,256 $ 932,374 Real estate- Mortgage December 31, 2017 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Loans: Individually evaluated for impairment $ 3,627 $ 44 $ 2,824 $ 5,610 $ 4 $ 12,109 Collectively evaluated for impairment 97,719 46,973 315,333 432,337 18,742 911,104 Total loans $ 101,346 $ 47,017 $ 318,157 $ 437,947 $ 18,746 $ 923,213 Real Estate- Mortgage March 31, 2018 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 $ 997 $ - $ 124 $ 756 $ - $ 1,877 Collectively evaluated for impairment 259 92 1,658 3,567 98 5,674 Total ending allowance balance $ 1,256 $ 92 $ 1,782 $ 4,323 $ 98 $ 7,551 Real Estate- Mortgage December 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 $ 694 $ - $ 140 $ 733 $ - $ 1,567 Collectively evaluated for impairment 305 313 1,620 3,303 82 5,623 Total ending allowance balance $ 999 $ 313 $ 1,760 $ 4,036 $ 82 $ 7,190 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 increases in the allowance for loan loss for C&I, Residential, CRE, and Consumer Installment loan portfolios were partially offset by a decrease in the allowance for the Real Estate Construction portfolio. Management evaluates individual loans in all of the commercial segments for possible impairment based on guidance established by the Board of Directors. Loans are considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in evaluating impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. The Company does not Once the determination has been made that a loan is impaired, the determination of whether a specific allocation of the allowance is necessary is measured by comparing the recorded investment in the loan to the fair value of the loan using one not The following tables present impaired loans by class, segregated by those for which a specific allowance was required and those for which a specific allowance was not March 31, 2018 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial and industrial $ 976 $ 1,173 $ - Real estate - mortgage: Residential 1,597 1,822 - Commercial 1,629 1,767 - Total $ 4,202 $ 4,762 $ - With an allowance recorded: Commercial and industrial $ 7,908 $ 8,611 $ 997 Real estate - mortgage: Residential 1,119 1,165 124 Commercial 4,988 5,169 756 Consumer installment 3 3 - Total $ 14,018 $ 14,948 $ 1,877 Total: Commercial and industrial $ 8,884 $ 9,784 $ 997 Real estate - mortgage: Residential 2,716 2,987 124 Commercial 6,617 6,936 756 Consumer installment 3 3 - Total $ 18,220 $ 19,710 $ 1,877 December 31, 2017 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial and industrial $ 450 $ 1,006 $ - Real estate - construction 44 44 - Real estate - mortgage: Residential 1,685 1,904 - Commercial 1,870 1,984 - Consumer installment 4 4 - Total $ 4,053 $ 4,942 $ - With an allowance recorded: Commercial and industrial $ 3,177 $ 3,888 $ 694 Real estate - mortgage: Residential 1,139 1,179 140 Commercial 3,740 3,913 733 Total $ 8,056 $ 8,980 $ 1,567 Total: Commercial and industrial $ 3,627 $ 4,894 $ 694 Real estate - construction 44 44 - Real estate - mortgage: Residential 2,824 3,083 140 Commercial 5,610 5,897 733 Consumer installment 4 4 - Total $ 12,109 $ 13,922 $ 1,567 The tables above include troubled debt restructuring totaling $9.1 March 31, 2018 $5.4 December 31, 2017. 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, 2018 For the Three Months Ended March 31, 2017 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Commercial and industrial $ 5,631 $ 187 $ 1,372 $ 84 Real estate - construction 283 - 810 - Real estate - mortgage: Residential 2,892 21 3,092 22 Commercial 6,719 136 7,077 88 Consumer installment 4 - 5 - Total $ 15,529 $ 344 $ 12,356 $ 194 Management uses a nine first five not not not 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 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): March 31, 2018 Special Total Pass Mention Substandard Doubtful Loans Commercial and industrial $ 87,415 $ 8,955 $ 3,439 $ - $ 99,809 Real estate - construction 48,687 - - - 48,687 Real estate - mortgage: Residential 310,965 715 5,176 - 316,856 Commercial 434,991 8,206 5,569 - 448,766 Consumer installment 18,082 - 174 - 18,256 Total $ 900,140 $ 17,876 $ 14,358 $ - $ 932,374 December 31, 2017 Special Total Pass Mention Substandard Doubtful Loans Commercial and industrial $ 95,621 $ 1,942 $ 3,783 $ - $ 101,346 Real estate - construction 46,995 - 22 - 47,017 Real estate - mortgage: Residential 312,176 723 5,258 - 318,157 Commercial 424,225 9,164 4,558 - 437,947 Consumer installment 18,742 - 4 - 18,746 Total $ 897,759 $ 11,829 $ 13,625 $ - $ 923,213 The increase in the amount classified as special mention for commercial and industrial loans for the three March 31, 2018 $5.8 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, TDRs, loans 90 The following tables present the classes of the loan portfolio summarized by the aging categories of performing loans (in thousands): March 31, 2018 30-59 Days 60-89 Days 90 Days+ Total Total Current Past Due Past Due Past Due Past Due Loans Commercial and industrial $ 99,201 $ 175 $ 366 $ 67 $ 608 $ 99,809 Real estate - construction 48,647 40 - - 40 48,687 Real estate - mortgage: Residential 313,459 1,943 538 916 3,397 316,856 Commercial 445,861 1,652 260 993 2,905 448,766 Consumer installment 18,243 11 2 - 13 18,256 Total $ 925,411 $ 3,821 $ 1,166 $ 1,976 $ 6,963 $ 932,374 December 31, 2017 30-59 Days 60-89 Days 90 Days+ Total Total Current Past Due Past Due Past Due Past Due Loans Commercial and industrial $ 99,633 $ 1,607 $ 29 $ 77 $ 1,713 $ 101,346 Real estate - construction 47,017 - - - - 47,017 Real estate - mortgage: Residential 314,866 1,977 227 1,087 3,291 318,157 Commercial 434,879 1,907 1 1,160 3,068 437,947 Consumer installment 18,736 10 - - 10 18,746 Total $ 915,131 $ 5,501 $ 257 $ 2,324 $ 8,082 $ 923,213 The following tables present the classes of the loan portfolio summarized by nonaccrual loans (in thousands): March 31, 2018 90+ Days Past Nonaccrual Due and Accruing Commercial and industrial $ 1,351 $ - Real estate - construction - - Real estate - mortgage: Residential 3,934 - Commercial 3,462 - Consumer installment - - Total $ 8,747 $ - December 31, 2017 90+ Days Past Nonaccrual Due and Accruing Commercial and industrial $ 1,120 $ - Real estate - construction - - Real estate - mortgage: Residential 4,002 - Commercial 3,311 - Consumer installment - - Total $ 8,433 $ - Interest income that would have been recorded had these loans not $369,000 three March 31, 2018 $437,000 December 31, 2017. 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, 2017 $ 999 $ 313 $ 1,760 $ 4,036 $ 82 $ 7,190 Charge-offs (9 ) - - - (4 ) (13 ) Recoveries 109 17 20 - 18 164 Provision 157 (238 ) 2 287 2 210 ALLL balance at March 31, 2018 $ 1,256 $ 92 $ 1,782 $ 4,323 $ 98 $ 7,551 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 The negative provision allocated to real estate construction loans in the amount of $238,000 three March 31, 2018 0.127% 0.775% The negative provision allocated to residential real estate loans in the amount of $234,000 three March 31, 2017 The following tables summarize troubled debt restructurings (in thousands): For the Three Months Ended March 31, 2018 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 $ 6,977 $ 6,977 Residential real estate 2 - 2 63 63 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 There were no three March 31, 2018. $33,000 three March 31, 2017.

Significant Accounting Policies

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements – In February 2016, 2016 02, Leases (Topic 842 one 12 not may December 15, 2018, December 15, 2019, December 15, 2020. may not 1 In June 2016, 2016 13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments ( “ CECL ” ) 2016 13 December 15, 2019, December 15, 2018. first 12 January 1, 2020. In February 2018, 2018 03, 825 10 2016 01. 1 may 820, 820. 2 3 4 825 10 45 5 815 15, 825 10, 5 first 6 2016 01 944, December 15, 2017, June 15, 2018. December 15, 2017, June 15, 2018, not June 15, 2018, June 15, 2018, December 15, 2018, not 2016 01. 2016 01. may December 15, 2017, 2016 01. ASU 2018 04, 320 980 No. 117 No. 33 9273, 2018 04 No. 117.

Note 2 - Revenue Recognition (T

Note 2 - Revenue Recognition (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Disaggregation of Revenue [Table Text Block]	Noninterest Income 2018 2017 (Dollar amounts in thousands) Service charges on deposit accounts: Overdraft fees $ 193 $ 192 ATM banking fees 201 114 Service charges and other fees 59 163 Investment securities gains on sale, net (a) - 488 Equity securities, unrealized gains (a) 18 - Earnings on bank-owned life insurance (a) 112 109 Gain on sale of loans (a) 4 234 Other income 199 211 Total noninterest income $ 786 $ 1,511

Note 3 - Stock-based Compensa19

Note 3 - Stock-based Compensation (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Share-based Compensation, Stock Options, Activity [Table Text Block]	Weighted- average Exercise Price Shares Per Share Outstanding, January 1, 2018 19,750 $ 20.94 Exercised (1,500 ) 23.00 Outstanding, March 31, 2018 18,250 $ 20.78 Exercisable, March 31, 2018 18,250 $ 20.78
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]	Weighted- average Grant Date Fair Shares Value Per Share Nonvested at January 1, 2018 14,601 $ 35.14 Granted - - Forfeited - - Nonvested at March 31, 2018 14,601 $ 35.14 Expected to vest at March 31, 2018 14,601 $ 35.14

Note 4 - Earnings Per Share (Ta

Note 4 - Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Schedule of Weighted Average Number of Shares [Table Text Block]	For the Three Months Ended March 31, 2018 2017 Weighted-average common shares outstanding 3,606,427 3,065,981 Average treasury stock shares (386,165 ) (386,165 ) Weighted-average common shares and common stock equivalents used to calculate basic earnings per share 3,220,262 2,679,816 Additional common stock equivalents (stock options and restricted stock) used to calculate diluted earnings per share 17,807 12,199 Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share 3,238,069 2,692,015

Note 5 - Fair Value Measureme21

Note 5 - Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	March 31, 2018 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: U.S. government agency securities $ - $ 8,305 $ - $ 8,305 Obligations of states and political subdivisions - 65,579 - 65,579 Mortgage-backed securities in government-sponsored entities - 17,378 - 17,378 Total debt securities - 91,262 - 91,262 Equity securities in financial institutions 393 250 - 643 Total $ 393 $ 91,512 $ - $ 91,905 December 31, 2017 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a recurring basis: U.S. government agency securities $ - $ 8,719 $ - $ 8,719 Obligations of states and political subdivisions - 67,429 - 67,429 Mortgage-backed securities in government-sponsored entities - 18,510 - 18,510 Total debt securities - 94,658 - 94,658 Equity securities in financial institutions - 625 - 625 Total $ - $ 95,283 $ - $ 95,283
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	March 31, 2018 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ - $ - $ 1,734 $ 1,734 December 31, 2017 (Dollar amounts in thousands) Level I Level II Level III Total Assets measured on a non-recurring basis: Impaired loans $ - $ - $ 3,072 $ 3,072 Other real estate owned - - 32 32
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]	Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Fair Value Estimate Valuation Techniques Unobservable Input Range (Weighted Average) March 31, 2018 Impaired loans $ 1,734 Appraisal of collateral (1) Appraisal adjustments (2) 0% to 100.0% (40.58%) Quantitative Information about Level III Fair Value Measurements (Dollar amounts in thousands) Fair Value Estimate Valuation Techniques Unobservable Input Range (Weighted Average) December 31, 2017 Impaired loans $ 3,072 Appraisal of collateral (1) Appraisal adjustments (2) 0% to 86.1% (13.8%) Other real estate owned $ 32 Appraisal of collateral (1) Appraisal adjustments (2) 0% to 10.0%
Fair Value, by Balance Sheet Grouping [Table Text Block]	March 31, 2018 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Cash and cash equivalents (1) $ 33,258 $ 33,258 $ - $ - $ 33,258 Loans held for sale 937 - 937 - 937 Net loans 924,823 - - 916,073 916,073 Bank-owned life insurance (1) 15,764 15,764 - - 15,764 Federal Home Loan Bank stock (1) 3,679 3,679 - - 3,679 Accrued interest receivable (1) 3,269 3,269 - - 3,269 Financial liabilities: Deposits $ 944,573 $ 662,072 $ - $ 279,850 $ 941,922 Short-term borrowings (1) 18,671 18,671 - - 18,671 Other borrowings 19,028 - - 19,030 19,030 Accrued interest payable (1) 573 573 - - 573 December 31, 2017 Carrying Total Value Level I Level II Level III Fair Value (Dollar amounts in thousands) Financial assets: Cash and cash equivalents $ 39,886 $ 39,886 $ - $ - $ 39,886 Loans held for sale 463 - 463 - 463 Net loans 916,023 - - 913,323 913,323 Bank-owned life insurance 15,652 15,652 - - 15,652 Federal Home Loan Bank stock 3,589 3,589 - - 3,589 Accrued interest receivable 3,288 3,288 - - 3,288 Financial liabilities: Deposits $ 878,194 $ 635,207 $ - $ 242,020 $ 877,227 Short-term borrowings 74,707 74,707 - - 74,707 Other borrowings 29,065 - - 29,069 29,069 Accrued interest payable 578 578 - - 578

Note 6 - Accumulated Other Co22

Note 6 - Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	(Dollars in thousands) Unrealized gains on available-for-sale securities (a) Balance as of December 31, 2017 $ 1,091 Other comprehensive (loss) before reclassification (1,510 ) Change in accounting principle, ASC 2016-01 (b) (141 ) Change in accounting principle, ASC 2018-02 (b) 187 Period change (1,464 ) Balance at March 31, 2018 $ (373 ) (Dollars in thousands) Unrealized gains on available-for-sale 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
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]	Amounts Reclassified from Accumulated Other Comprehensive Affected Line Item in Income the Statement Where (Dollars in thousands) For the Three Months Ended Net Income is Details about other comprehensive income March 31, 2018 March 31, 2017 Presented Unrealized gains on available-for-sale securities (a) $ - $ 488 Investment securities gains on sale, net - (166 ) Income taxes $ - $ 322

Note 7 - Investment and Equit23

Note 7 - Investment and Equity Securities (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	March 31, 2018 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value U.S. government agency securities $ 8,342 $ 70 $ (107 ) $ 8,305 Obligations of states and political subdivisions: Taxable 504 14 - 518 Tax-exempt 64,986 829 (754 ) 65,061 Mortgage-backed securities in government-sponsored entities 17,900 66 (588 ) 17,378 Total $ 91,732 $ 979 $ (1,449 ) $ 91,262 December 31, 2017 Gross Gross Amortized Unrealized Unrealized Fair (Dollar amounts in thousands) Cost Gains Losses Value U.S. government agency securities $ 8,664 $ 126 $ (71 ) $ 8,719 Obligations of states and political subdivisions: Taxable 504 8 - 512 Tax-exempt 65,408 1,547 (38 ) 66,917 Mortgage-backed securities in government-sponsored entities 18,640 157 (287 ) 18,510 Total debt securities 93,216 1,838 (396 ) 94,658 Equity securities in financial institutions 415 210 - 625 Total $ 93,631 $ 2,048 $ (396 ) $ 95,283
Equity Securities without Readily Determinable Fair Value [Table Text Block]	2018 Year-to-Date Life-to-Date Amortized cost $ 232 $ 232 Impairment - - Observable price changes 18 18 Carrying value $ 250 $ 250
Gain (Loss) on Securities [Table Text Block]	2018 (Dollar amounts in thousands) Net gains recognized in equity securities during the period $ 18 Less: Net gains realized on the sale of equity securities during the period - Unrealized gains recognized in equity securities held at reporting date $ 18
Investments Classified by Contractual Maturity Date [Table Text Block]	Amortized Fair (Dollar amounts in thousands) Cost Value Due in one year or less $ 4,252 $ 4,303 Due after one year through five years 7,607 7,713 Due after five years through ten years 12,489 12,420 Due after ten years 67,384 66,826 Total $ 91,732 $ 91,262
Realized Gain (Loss) on Investments [Table Text Block]	For the Three Months (Dollar amounts in thousands) Ended March 31, 2018 2017 Proceeds from sales $ - $ - Gross realized gains - 488 (1) Gross realized losses - -
Schedule of Unrealized Loss on Investments [Table Text Block]	March 31, 2018 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 $ 548 $ (12 ) $ 3,899 $ (95 ) $ 4,447 $ (107 ) Obligations of states and political subdivisions: Tax-exempt 25,087 (660 ) 2,721 (94 ) 27,808 (754 ) Mortgage-backed securities in government-sponsored entities 5,941 (203 ) 8,136 (385 ) 14,077 (588 ) Total $ 31,576 $ (875 ) $ 14,756 $ (574 ) $ 46,332 $ (1,449 ) December 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 $ 557 $ (4 ) $ 4,036 $ (67 ) $ 4,593 $ (71 ) Obligations of states and political subdivisions: Tax-exempt 1,009 (6 ) 2,784 (32 ) 3,793 (38 ) Mortgage-backed securities in government-sponsored entities 5,698 (71 ) 8,734 (216 ) 14,432 (287 ) Total $ 7,264 $ (81 ) $ 15,554 $ (315 ) $ 22,818 $ (396 )

Note 8 - Loans and Related Al24

Note 8 - Loans and Related Allowance for Loan and Lease Losses (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	March 31, December 31, 2018 2017 Commercial and industrial $ 99,809 $ 101,346 Real estate - construction 48,687 47,017 Real estate - mortgage: Residential 316,856 318,157 Commercial 448,766 437,947 Consumer installment 18,256 18,746 932,374 923,213 Less: Allowance for loan and lease losses (7,551 ) (7,190 ) Net loans $ 924,823 $ 916,023
Schedule Of Financing Receivable By Segment [Table Text Block]	Real Estate- Mortgage March 31, 2018 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Loans: Individually evaluated for impairment $ 8,884 $ - $ 2,716 $ 6,617 $ 3 $ 18,220 Collectively evaluated for impairment 90,925 48,687 314,140 442,149 18,253 914,154 Total loans $ 99,809 $ 48,687 $ 316,856 $ 448,766 $ 18,256 $ 932,374 Real estate- Mortgage December 31, 2017 Commercial and industrial Real estate- construction Residential Commercial Consumer installment Total Loans: Individually evaluated for impairment $ 3,627 $ 44 $ 2,824 $ 5,610 $ 4 $ 12,109 Collectively evaluated for impairment 97,719 46,973 315,333 432,337 18,742 911,104 Total loans $ 101,346 $ 47,017 $ 318,157 $ 437,947 $ 18,746 $ 923,213
Schedule of Credit Losses for Financing Receivables, Current [Table Text Block]	Real Estate- Mortgage March 31, 2018 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 $ 997 $ - $ 124 $ 756 $ - $ 1,877 Collectively evaluated for impairment 259 92 1,658 3,567 98 5,674 Total ending allowance balance $ 1,256 $ 92 $ 1,782 $ 4,323 $ 98 $ 7,551 Real Estate- Mortgage December 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 $ 694 $ - $ 140 $ 733 $ - $ 1,567 Collectively evaluated for impairment 305 313 1,620 3,303 82 5,623 Total ending allowance balance $ 999 $ 313 $ 1,760 $ 4,036 $ 82 $ 7,190 Commercial and industrial Real estate- construction Real estate- residential mortgage Real estate- commercial mortgage Consumer installment Total ALLL balance at December 31, 2017 $ 999 $ 313 $ 1,760 $ 4,036 $ 82 $ 7,190 Charge-offs (9 ) - - - (4 ) (13 ) Recoveries 109 17 20 - 18 164 Provision 157 (238 ) 2 287 2 210 ALLL balance at March 31, 2018 $ 1,256 $ 92 $ 1,782 $ 4,323 $ 98 $ 7,551 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
Impaired Financing Receivables [Table Text Block]	March 31, 2018 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial and industrial $ 976 $ 1,173 $ - Real estate - mortgage: Residential 1,597 1,822 - Commercial 1,629 1,767 - Total $ 4,202 $ 4,762 $ - With an allowance recorded: Commercial and industrial $ 7,908 $ 8,611 $ 997 Real estate - mortgage: Residential 1,119 1,165 124 Commercial 4,988 5,169 756 Consumer installment 3 3 - Total $ 14,018 $ 14,948 $ 1,877 Total: Commercial and industrial $ 8,884 $ 9,784 $ 997 Real estate - mortgage: Residential 2,716 2,987 124 Commercial 6,617 6,936 756 Consumer installment 3 3 - Total $ 18,220 $ 19,710 $ 1,877 December 31, 2017 Impaired Loans Unpaid Recorded Principal Related Investment Balance Allowance With no related allowance recorded: Commercial and industrial $ 450 $ 1,006 $ - Real estate - construction 44 44 - Real estate - mortgage: Residential 1,685 1,904 - Commercial 1,870 1,984 - Consumer installment 4 4 - Total $ 4,053 $ 4,942 $ - With an allowance recorded: Commercial and industrial $ 3,177 $ 3,888 $ 694 Real estate - mortgage: Residential 1,139 1,179 140 Commercial 3,740 3,913 733 Total $ 8,056 $ 8,980 $ 1,567 Total: Commercial and industrial $ 3,627 $ 4,894 $ 694 Real estate - construction 44 44 - Real estate - mortgage: Residential 2,824 3,083 140 Commercial 5,610 5,897 733 Consumer installment 4 4 - Total $ 12,109 $ 13,922 $ 1,567
Schedule of Additional Information Related to Impaired Loans [Table Text Block]	For the Three Months Ended March 31, 2018 For the Three Months Ended March 31, 2017 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Commercial and industrial $ 5,631 $ 187 $ 1,372 $ 84 Real estate - construction 283 - 810 - Real estate - mortgage: Residential 2,892 21 3,092 22 Commercial 6,719 136 7,077 88 Consumer installment 4 - 5 - Total $ 15,529 $ 344 $ 12,356 $ 194
Financing Receivable Credit Quality Indicators [Table Text Block]	March 31, 2018 Special Total Pass Mention Substandard Doubtful Loans Commercial and industrial $ 87,415 $ 8,955 $ 3,439 $ - $ 99,809 Real estate - construction 48,687 - - - 48,687 Real estate - mortgage: Residential 310,965 715 5,176 - 316,856 Commercial 434,991 8,206 5,569 - 448,766 Consumer installment 18,082 - 174 - 18,256 Total $ 900,140 $ 17,876 $ 14,358 $ - $ 932,374 December 31, 2017 Special Total Pass Mention Substandard Doubtful Loans Commercial and industrial $ 95,621 $ 1,942 $ 3,783 $ - $ 101,346 Real estate - construction 46,995 - 22 - 47,017 Real estate - mortgage: Residential 312,176 723 5,258 - 318,157 Commercial 424,225 9,164 4,558 - 437,947 Consumer installment 18,742 - 4 - 18,746 Total $ 897,759 $ 11,829 $ 13,625 $ - $ 923,213
Past Due Financing Receivables [Table Text Block]	March 31, 2018 30-59 Days 60-89 Days 90 Days+ Total Total Current Past Due Past Due Past Due Past Due Loans Commercial and industrial $ 99,201 $ 175 $ 366 $ 67 $ 608 $ 99,809 Real estate - construction 48,647 40 - - 40 48,687 Real estate - mortgage: Residential 313,459 1,943 538 916 3,397 316,856 Commercial 445,861 1,652 260 993 2,905 448,766 Consumer installment 18,243 11 2 - 13 18,256 Total $ 925,411 $ 3,821 $ 1,166 $ 1,976 $ 6,963 $ 932,374 December 31, 2017 30-59 Days 60-89 Days 90 Days+ Total Total Current Past Due Past Due Past Due Past Due Loans Commercial and industrial $ 99,633 $ 1,607 $ 29 $ 77 $ 1,713 $ 101,346 Real estate - construction 47,017 - - - - 47,017 Real estate - mortgage: Residential 314,866 1,977 227 1,087 3,291 318,157 Commercial 434,879 1,907 1 1,160 3,068 437,947 Consumer installment 18,736 10 - - 10 18,746 Total $ 915,131 $ 5,501 $ 257 $ 2,324 $ 8,082 $ 923,213
Schedule of Financing Receivables, Non Accrual Status [Table Text Block]	March 31, 2018 90+ Days Past Nonaccrual Due and Accruing Commercial and industrial $ 1,351 $ - Real estate - construction - - Real estate - mortgage: Residential 3,934 - Commercial 3,462 - Consumer installment - - Total $ 8,747 $ - December 31, 2017 90+ Days Past Nonaccrual Due and Accruing Commercial and industrial $ 1,120 $ - Real estate - construction - - Real estate - mortgage: Residential 4,002 - Commercial 3,311 - Consumer installment - - Total $ 8,433 $ -
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	For the Three Months Ended March 31, 2018 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 $ 6,977 $ 6,977 Residential real estate 2 - 2 63 63 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

Note 2 - Revenue Recognition (D

Note 2 - Revenue Recognition (Details Textual)	3 Months Ended
	Mar. 31, 2018
Revenue from Interest Income and Noninterest Income, Percent	93.40%

Note 2 - Revenue Recognition -

Note 2 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Investment securities gains on sale, net	[1]		$ 488
Equity securities, unrealized gains	[1]	18
Earnings on bank-owned life insurance	[1]	112	109
Gain on sale of loans	[1]	4	234
Total noninterest income		786	1,511
Overdraft Fees [Member]
Noninterest income revenue		193	192
ATM Banking Fees [Member]
Noninterest income revenue		201	114
Service Charge and Other Fees [Member]
Noninterest income revenue		59	163
Financial Service, Other [Member]
Noninterest income revenue		$ 199	$ 211
[1]	Not within scope of ASC 606.

Note 3 - Stock-based Compensa27

Note 3 - Stock-based Compensation (Details Textual) - USD ($) shares in Thousands	3 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares, Ending Balance	0	0
Allocated Share-based Compensation Expense, Total	$ 55,000	$ 48,000
Restricted Stock [Member]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options	$ 199,000
Restricted Stock [Member] | Scenario, Forecast [Member]
Allocated Share-based Compensation Expense, Total			$ 127,000	$ 72,000

Note 3 - Stock-based Compensa28

Note 3 - Stock-based Compensation - Stock Option Activity (Details)	3 Months Ended
	Mar. 31, 2018$ / sharesshares
Outstanding (in shares) | shares	19,750
Outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 20.94
Exercised (in shares) | shares	(1,500)
Exercised, weighted average exercise price (in dollars per share) | $ / shares	$ 23
Outstanding (in shares) | shares	18,250
Outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 20.78
Exercisable (in shares) | shares	18,250
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 20.78

Note 3 - Stock-based Compensa29

Note 3 - Stock-based Compensation - Activity Related to Restricted Stock Units Awarded (Details) - Restricted Stock [Member]	3 Months Ended
	Mar. 31, 2018$ / sharesshares
Nonvested, shares (in shares) | shares	14,601
Nonvested, weighted average grant date fair value per share (in dollars per share) | $ / shares	$ 35.14
Granted, shares (in shares) | shares
Granted, weighted average grant date fair value per share (in dollars per share) | $ / shares
Forfeited, shares (in shares) | shares
Forfeited, weighted average grant date fair value per share (in dollars per share) | $ / shares
Nonvested, shares (in shares) | shares	14,601
Nonvested, weighted average grant date fair value per share (in dollars per share) | $ / shares	$ 35.14
Expected to vest, shares (in shares) | shares	14,601
Expected to vest, weighted average grant date fair value per share (in dollars per share) | $ / shares	$ 35.14

Note 4 - Earnings Per Share (De

Note 4 - Earnings Per Share (Details Textual) - $ / shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance	18,250	27,762	19,750
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	$ 23	$ 37.48
Employee Stock Option and Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	14,601	15,800	14,601

Note 4 - Earnings Per Share - S

Note 4 - Earnings Per Share - Shares Used in Calculation of Earnings Per Share (Details) - shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Weighted-average common shares outstanding (in shares)	3,606,427	3,065,981
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)	3,220,262	2,679,816
Additional common stock equivalents (stock options and restricted stock) used to calculate diluted earnings per share (in shares)	17,807	12,199
Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share (in shares)	3,238,069	2,692,015

Note 5 - Fair Value Measureme32

Note 5 - Fair Value Measurements (Details Textual)	3 Months Ended
	Mar. 31, 2018USD ($)
Estimated Selling Costs of Impaired Loans	$ 573,000

Note 5 - Fair Value Measureme33

Note 5 - Fair Value Measurements - Assets Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Investment securities available for sale, at fair value	$ 91,262	$ 95,283
US Government Agencies Debt Securities [Member]
Investment securities available for sale, at fair value	8,305	8,719
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Investment securities available for sale, at fair value	17,378	18,510
Debt Securities [Member]
Investment securities available for sale, at fair value		94,658
Equity Securities [Member]
Investment securities available for sale, at fair value		625
Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	91,905	95,283
Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member]
Investment securities available for sale, at fair value	8,305	8,719
Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale, at fair value	65,579	67,429
Fair Value, Measurements, Recurring [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Investment securities available for sale, at fair value	17,378	18,510
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
Investment securities available for sale, at fair value	91,262	94,658
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Investment securities available for sale, at fair value	643	625
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	393
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Investment securities available for sale, at fair value	393
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	91,512	95,283
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	8,305	8,719
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	65,579	67,429
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	17,378	18,510
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
Investment securities available for sale, at fair value	91,262	94,658
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Investment securities available for sale, at fair value	250	625
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Investment securities available for sale, at fair value

Note 5 - Fair Value Measureme34

Note 5 - Fair Value Measurements - Assets Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Impaired loans	$ 18,220	$ 12,109
Fair Value, Measurements, Nonrecurring [Member]
Impaired loans	1,734	3,072
Other real estate owned		32
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Impaired loans
Other real estate owned
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Impaired loans
Other real estate owned
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Impaired loans	$ 1,734	3,072
Other real estate owned		$ 32

Note 5 - Fair Value Measureme35

Note 5 - Fair Value 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] - Appraisal of Collateral [Member] $ in Thousands		Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Impaired loans, fair value estimate	[1]	$ 1,734	$ 3,072
Other real estate owned, fair value estimate	[1]		$ 32
Minimum [Member] | Measurement Input, Discount Rate [Member]
Impaired loans, discount rate	[2]	0	0
Other real estate owned, discount rate	[2]		0
Maximum [Member] | Measurement Input, Discount Rate [Member]
Impaired loans, discount rate	[2]	100	86.1
Other real estate owned, discount rate	[2]		10
Weighted Average [Member] | Measurement Input, Discount Rate [Member]
Impaired loans, discount rate	[2]	40.58	13.8
[1]	Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level III inputs which are not identifiable, less any associated allowance.
[2]	Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range and weighted average of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal.

Note 5 - Fair Value Measureme36

Note 5 - Fair Value Measurements - Estimated Fair Value of the Company's Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2018		Dec. 31, 2017
Reported Value Measurement [Member]
Financial assets:
Cash and cash equivalents	$ 33,258	[1]	$ 39,886
Loans held for sale	937		463
Net loans	924,823		916,023
Bank-owned life insurance	15,764	[1]	15,652
Federal Home Loan Bank stock	3,679	[1]	3,589
Accrued interest receivable	3,269	[1]	3,288
Financial liabilities:
Deposits	944,573		878,194
Short-term borrowings	18,671	[1]	74,707
Other borrowings	19,028		29,065
Accrued interest payable	573	[1]	578
Estimate of Fair Value Measurement [Member]
Financial assets:
Cash and cash equivalents	33,258	[1]	39,886
Loans held for sale	937		463
Net loans	916,073		913,323
Bank-owned life insurance	15,764	[1]	15,652
Federal Home Loan Bank stock	3,679	[1]	3,589
Accrued interest receivable	3,269	[1]	3,288
Financial liabilities:
Deposits	941,922		877,227
Short-term borrowings	18,671	[1]	74,707
Other borrowings	19,030		29,069
Accrued interest payable	573	[1]	578
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Financial assets:
Cash and cash equivalents	33,258	[1]	39,886
Loans held for sale
Net loans
Bank-owned life insurance	15,764	[1]	15,652
Federal Home Loan Bank stock	3,679	[1]	3,589
Accrued interest receivable	3,269	[1]	3,288
Financial liabilities:
Deposits	662,072		635,207
Short-term borrowings	18,671	[1]	74,707
Other borrowings
Accrued interest payable	573	[1]	578
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Financial assets:
Cash and cash equivalents		[1]
Loans held for sale	937		463
Net loans
Bank-owned life insurance		[1]
Federal Home Loan Bank stock		[1]
Accrued interest receivable		[1]
Financial liabilities:
Deposits
Short-term borrowings		[1]
Other borrowings
Accrued interest payable		[1]
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Financial assets:
Cash and cash equivalents		[1]
Loans held for sale
Net loans	916,073		913,323
Bank-owned life insurance		[1]
Federal Home Loan Bank stock		[1]
Accrued interest receivable		[1]
Financial liabilities:
Deposits	279,850		242,020
Short-term borrowings		[1]
Other borrowings	19,030		29,069
Accrued interest payable		[1]
[1]	This financial instrument is carried at cost at March 31, 2018, which approximates the fair value of the instrument.

Note 6 - Accumulated Other Co37

Note 6 - Accumulated Other Comprehensive Income - Changes in Accumulated Other Comprehensive Income (Loss) by Component, Net of Tax (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Balance		$ 119,863
Change in accounting principle, ASC 2016-01
Change in accounting principle, ASC 2018-02
Total other comprehensive income (loss)		(1,510)	$ (169)
Balance		120,152
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Balance	[1]	1,091	1,201
Other comprehensive income (loss) before reclassification	[1]	(1,510)	153
Change in accounting principle, ASC 2016-01	[1],[2]	(141)
Change in accounting principle, ASC 2018-02	[1],[2]	187
Total other comprehensive income (loss)	[1]	(1,464)	(169)
Balance	[1]	$ (373)	1,032
Amount reclassified from accumulated other comprehensive income	[1]		$ (322)
[1]	All amounts are net of tax. Amounts in parentheses indicate debits to accumulated other comprehensive income.
[2]	Reclassifications are the result of the adoption of ASUs 2016-01 and 2018-02 effective for the Company beginning January 1, 2018. The reclassifications are presented within the Consolidated Statement of Changes in Stockholders' Equity for the affected transitional periods.

Note 6 - Accumulated Other Co38

Note 6 - 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, 2018		Mar. 31, 2017
Investment securities gains on sale, net	[1]			$ 488
Income taxes			[1]	(166)
Net of tax			[1]	$ 322
[1]	For unrealized gains on available-for-sale securities, amounts in parentheses indicate expenses and other amounts indicate income.

Note 7 - Investment and Equit39

Note 7 - Investment and Equity Securities (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Security Owned and Pledged as Collateral, Fair Value, Total	$ 61,700,000		$ 57,900,000
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Total	82
Available-for-sale Securities, Percentage of Portfolio	100.00%
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Ending Balance	$ 0
Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale, Total	$ 0	$ 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

Note 7 - Investment and Equit40

Note 7 - Investment and Equity Securities - Amortized Cost and Fair Values of Securities Available for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Amortized cost	$ 91,732	$ 93,631
Gross unrealized gains	979	2,048
Gross unrealized losses	(1,449)	(396)
Investment securities available for sale, at fair value	91,262	95,283
US Government Agencies Debt Securities [Member]
Amortized cost	8,342	8,664
Gross unrealized gains	70	126
Gross unrealized losses	(107)	(71)
Investment securities available for sale, at fair value	8,305	8,719
Taxable Municipal Bonds [Member]
Amortized cost	504	504
Gross unrealized gains	14	8
Gross unrealized losses
Investment securities available for sale, at fair value	518	512
Nontaxable Municipal Bonds [Member]
Amortized cost	64,986	65,408
Gross unrealized gains	829	1,547
Gross unrealized losses	(754)	(38)
Investment securities available for sale, at fair value	65,061	66,917
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Amortized cost	17,900	18,640
Gross unrealized gains	66	157
Gross unrealized losses	(588)	(287)
Investment securities available for sale, at fair value	$ 17,378	18,510
Debt Securities [Member]
Amortized cost		93,216
Gross unrealized gains		1,838
Gross unrealized losses		(396)
Investment securities available for sale, at fair value		94,658
Equity Securities [Member]
Amortized cost		415
Gross unrealized gains		210
Gross unrealized losses
Investment securities available for sale, at fair value		$ 625

Note 7 - Investment and Equit41

Note 7 - Investment and Equity Securities - Equity Investments Without Readily Determinable Fair Values (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Amortized cost, annual	$ 232
Amortized cost, cumulative	232
Impairment, annual
Impairment, cumulative
Observable price changes, annual	18
Observable price changes, cumulative	18
Carrying value, annual	250
Carrying value, cumulative	$ 250

Note 7 - Investment and Equit42

Note 7 - Investment and Equity Securities - Gains and Losses Recognized in Net Income on Equity Securities (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Net gains recognized in equity securities during the period		$ 18
Less: Net gains realized on the sale of equity securities during the period
Unrealized gains recognized in equity securities held at reporting date	[1]	$ 18
[1]	Not within scope of ASC 606.

Note 7 - Investment and Equit43

Note 7 - Investment and Equity Securities - Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Details) $ in Thousands	Mar. 31, 2018USD ($)
Due in one year or less, amortized costs	$ 4,252
Due in one year or less, fair value	4,303
Due after one year through five years, amortized costs	7,607
Due after one year through five years, fair value	7,713
Due after five years through ten years, amortized costs	12,489
Due after five years through ten years, fair value	12,420
Due after ten years, amortized costs	67,384
Due after ten years, fair value	66,826
Amortized costs	91,732
Fair Value	$ 91,262

Note 7 - Investment and Equit44

Note 7 - Investment and Equity Securities - Sales of Available for Sale Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018		Mar. 31, 2017
Proceeds from sales
Gross realized gains		[1]	488
Gross realized losses
[1]	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, which was recorded in Equity Securities, Unrealized Gains on the consolidated Income Statement for the three months ended March 31, 2017.

Note 7 - Investment and Equit45

Note 7 - Investment and Equity Securities - Gross Unrealized Losses and Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Less than Twelve Months, Fair Value	$ 31,576	$ 7,264
Less than Twelve Months, Gross Unrealized Losses	(875)	(81)
Twelve Months or Greater, Fair Value	14,756	15,554
Twelve Months or Greater, Gross Unrealized Losses	(574)	(315)
Total, Fair Value	46,332	22,818
Total, Gross Unrealized Losses	(1,449)	(396)
US Government Agencies Debt Securities [Member]
Less than Twelve Months, Fair Value	548	557
Less than Twelve Months, Gross Unrealized Losses	(12)	(4)
Twelve Months or Greater, Fair Value	3,899	4,036
Twelve Months or Greater, Gross Unrealized Losses	(95)	(67)
Total, Fair Value	4,447	4,593
Total, Gross Unrealized Losses	(107)	(71)
Nontaxable Municipal Bonds [Member]
Less than Twelve Months, Fair Value	25,087	1,009
Less than Twelve Months, Gross Unrealized Losses	(660)	(6)
Twelve Months or Greater, Fair Value	2,721	2,784
Twelve Months or Greater, Gross Unrealized Losses	(94)	(32)
Total, Fair Value	27,808	3,793
Total, Gross Unrealized Losses	(754)	(38)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Less than Twelve Months, Fair Value	5,941	5,698
Less than Twelve Months, Gross Unrealized Losses	(203)	(71)
Twelve Months or Greater, Fair Value	8,136	8,734
Twelve Months or Greater, Gross Unrealized Losses	(385)	(216)
Total, Fair Value	14,077	14,432
Total, Gross Unrealized Losses	$ (588)	$ (287)

Note 8 - Loans and Related Al46

Note 8 - Loans and Related Allowance for Loan and Lease Losses (Details Textual) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Loans and Leases Receivable, Deferred Income, Total	$ 1,500,000		$ 1.50
Financing Receivable, Modifications, Recorded Investment	9,100,000		$ 5,400,000
Number of Days Past Due			90 days
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	369,000		$ 437,000
Provision for Loan, Lease, and Other Losses, Total	$ 210,000	$ 165,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0
Commercial And Industrial [Member]
Provision for Loan, Lease, and Other Losses, Total	$ 157,000	110,000
Commercial And Industrial [Member] | Special Mention [Member]
Financing Receivable, Modifications, Recorded Investment	5,800,000
Real Estate Construction Porfolio Segment [Member]
Provision for Loan, Lease, and Other Losses, Total	$ (238,000)	$ (3,000)
Loans and Leases Receivable, Historical Loss Rate	0.775%	(0.127%)
Residential Loan [Member] | Real Estate Mortgage Portfolio Segment [Member]
Provision for Loan, Lease, and Other Losses, Total	$ 2,000	$ (234,000)
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 33,000
Threshold For Loans Evaluated For Impairment [Member]
Loans and Leases Receivable, before Fees, Gross, Total	1,000,000
Outside Consultant [Member] | Threshold For Loans Evaluated For Impairment [Member]
Loans and Leases Receivable, before Fees, Gross, Total	250,000
Criticized Relationships [Member] | Threshold For Loans Evaluated For Impairment [Member]
Financing Receivable, Gross	$ 125,000

Note 8 - Loans and Related Al47

Note 8 - Loans and Related Allowance for Loan and Lease Losses - Major Classifications of Net Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable Gross	$ 932,374	$ 923,213
Less: Allowance for loan and lease losses	(7,551)	(7,190)	$ (6,720)	$ (6,598)
Net loans	924,823	916,023
Commercial And Industrial [Member]
Financing Receivable Gross	99,809	101,346
Less: Allowance for loan and lease losses	(1,256)	(999)	(616)	(448)
Real Estate Construction Porfolio Segment [Member]
Financing Receivable Gross	48,687	47,017
Less: Allowance for loan and lease losses	(92)	(313)	(186)	(172)
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Financing Receivable Gross	316,856	318,157
Less: Allowance for loan and lease losses	(1,782)	(1,760)	(2,523)	(2,818)
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Financing Receivable Gross	448,766	437,947
Less: Allowance for loan and lease losses	(4,323)	(4,036)	(3,378)	(3,135)
Consumer Portfolio Segment [Member]
Financing Receivable Gross	18,256	18,746
Less: Allowance for loan and lease losses	$ (98)	$ (82)	$ (17)	$ (25)

Note 8 - Loans and Related Al48

Note 8 - Loans and Related Allowance for Loan and Lease Losses - Primary Segments of the Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Individually evaluated for impairment	$ 18,220	$ 12,109
Collectively evaluated for impairment	914,154	911,104
Total loans	932,374	923,213
Commercial And Industrial [Member]
Individually evaluated for impairment	8,884	3,627
Collectively evaluated for impairment	90,925	97,719
Total loans	99,809	101,346
Real Estate Construction Porfolio Segment [Member]
Individually evaluated for impairment		44
Collectively evaluated for impairment	48,687	46,973
Total loans	48,687	47,017
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Individually evaluated for impairment	2,716	2,824
Collectively evaluated for impairment	314,140	315,333
Total loans	316,856	318,157
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Individually evaluated for impairment	6,617	5,610
Collectively evaluated for impairment	442,149	432,337
Total loans	448,766	437,947
Consumer Portfolio Segment [Member]
Individually evaluated for impairment	3	4
Collectively evaluated for impairment	18,253	18,742
Total loans	$ 18,256	$ 18,746

Note 8 - Loans and Related Al49

Note 8 - Loans and Related Allowance for Loan and Lease Losses - Allowance for Loan Losses (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Dec. 31, 2017
Individually evaluated for impairment			$ 1,877,000	$ 1,567,000
Collectively evaluated for impairment			5,674,000	5,623,000
Total ending allowance balance	$ 7,551,000	$ 6,598,000	7,551,000	7,190,000
ALLL balance, period start	7,190,000	6,598,000
Charge-offs	(13,000)	(208,000)
Recoveries	164,000	165,000
Provision for Loan, Lease, and Other Losses, Total	210,000	165,000
ALLL balance, period end	7,551,000	6,720,000
Commercial And Industrial [Member]
Individually evaluated for impairment			997,000	694,000
Collectively evaluated for impairment			259,000	305,000
Total ending allowance balance	1,256,000	448,000	1,256,000	999,000
ALLL balance, period start	999,000	448,000
Charge-offs	(9,000)	(20,000)
Recoveries	109,000	78,000
Provision for Loan, Lease, and Other Losses, Total	157,000	110,000
ALLL balance, period end	1,256,000	616,000
Real Estate Construction Porfolio Segment [Member]
Individually evaluated for impairment
Collectively evaluated for impairment			92,000	313,000
Total ending allowance balance	92,000	172,000	92,000	313,000
ALLL balance, period start	313,000	172,000
Charge-offs
Recoveries	17,000	17,000
Provision for Loan, Lease, and Other Losses, Total	(238,000)	(3,000)
ALLL balance, period end	92,000	186,000
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Individually evaluated for impairment			124,000	140,000
Collectively evaluated for impairment			1,658,000	1,620,000
Total ending allowance balance	1,782,000	2,818,000	1,782,000	1,760,000
ALLL balance, period start	1,760,000	2,818,000
Charge-offs		(68,000)
Recoveries	20,000	7,000
Provision for Loan, Lease, and Other Losses, Total	2,000	(234,000)
ALLL balance, period end	1,782,000	2,523,000
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Individually evaluated for impairment			756,000	733,000
Collectively evaluated for impairment			3,567,000	3,303,000
Total ending allowance balance	4,323,000	3,135,000	4,323,000	4,036,000
ALLL balance, period start	4,036,000	3,135,000
Charge-offs		(19,000)
Recoveries
Provision for Loan, Lease, and Other Losses, Total	287,000	262,000
ALLL balance, period end	4,323,000	3,378,000
Consumer Portfolio Segment [Member]
Individually evaluated for impairment
Collectively evaluated for impairment			98,000	82,000
Total ending allowance balance	98,000	25,000	$ 98,000	$ 82,000
ALLL balance, period start	82,000	25,000
Charge-offs	(4,000)	(101,000)
Recoveries	18,000	63,000
Provision for Loan, Lease, and Other Losses, Total	2,000	30,000
ALLL balance, period end	$ 98,000	$ 17,000

Note 8 - Loans and Related Al50

Note 8 - Loans and Related Allowance for Loan and Lease Losses - Impaired Loans by Class (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Recorded investment, with no related allowance	$ 4,202	$ 4,053
Unpaid principal balance, with no related allowance	4,762	4,942
Recorded investment, with related allowance	14,018	8,056
Unpaid principal balance, with related allowance	14,948	8,980
Related allowance	1,877	1,567
Recorded investment	18,220	12,109
Unpaid principal balance	19,710	13,922
Commercial Loans [Member]
Recorded investment, with related allowance	4,988
Unpaid principal balance, with related allowance	5,169
Related allowance	756
Commercial And Industrial [Member]
Recorded investment, with no related allowance	976	450
Unpaid principal balance, with no related allowance	1,173	1,006
Recorded investment, with related allowance	7,908	3,177
Unpaid principal balance, with related allowance	8,611	3,888
Related allowance	997	694
Recorded investment	8,884	3,627
Unpaid principal balance	9,784	4,894
Real Estate Construction Porfolio Segment [Member]
Recorded investment, with no related allowance		44
Unpaid principal balance, with no related allowance		44
Related allowance
Recorded investment		44
Unpaid principal balance		44
Real Estate Construction Porfolio Segment [Member] | Residential Loan [Member]
Recorded investment, with related allowance	1,119
Unpaid principal balance, with related allowance	1,165
Related allowance	124
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Recorded investment, with no related allowance	1,597	1,685
Unpaid principal balance, with no related allowance	1,822	1,904
Recorded investment, with related allowance		1,139
Unpaid principal balance, with related allowance		1,179
Related allowance	124	140
Recorded investment	2,716	2,824
Unpaid principal balance	2,987	3,083
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Recorded investment, with no related allowance	1,629	1,870
Unpaid principal balance, with no related allowance	1,767	1,984
Recorded investment, with related allowance		3,740
Unpaid principal balance, with related allowance		3,913
Related allowance	756	733
Recorded investment	6,617	5,610
Unpaid principal balance	6,936	5,897
Consumer Portfolio Segment [Member]
Recorded investment, with no related allowance		4
Unpaid principal balance, with no related allowance		4
Recorded investment, with related allowance	3
Unpaid principal balance, with related allowance	3
Related allowance
Recorded investment	3	4
Unpaid principal balance	$ 3	$ 4

Note 8 - Loans and Related Al51

Note 8 - Loans and Related Allowance for Loan and Lease Losses - Additional Information on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Average recorded investment	$ 15,529	$ 12,356
Interest income recognized	344	194
Commercial And Industrial [Member]
Average recorded investment	5,631	1,372
Interest income recognized	187	84
Real Estate Construction Porfolio Segment [Member]
Average recorded investment	283	810
Interest income recognized
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Average recorded investment	2,892	3,092
Interest income recognized	21	22
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Average recorded investment	6,719	7,077
Interest income recognized	136	88
Consumer Portfolio Segment [Member]
Average recorded investment	4	5
Interest income recognized

Note 8 - Loans and Related Al52

Note 8 - Loans and Related Allowance for Loan and Lease Losses - Classes of the Loan Portfolio Summarized by Credit Quality (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Loans, total	$ 932,374	$ 923,213
Commercial And Industrial [Member]
Loans, total	99,809	101,346
Real Estate Construction Porfolio Segment [Member]
Loans, total	48,687	47,017
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	316,856	318,157
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	448,766	437,947
Consumer Portfolio Segment [Member]
Loans, total	18,256	18,746
Pass [Member]
Loans, total	900,140	897,759
Pass [Member] | Commercial And Industrial [Member]
Loans, total	87,415	95,621
Pass [Member] | Real Estate Construction Porfolio Segment [Member]
Loans, total	48,687	46,995
Pass [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	310,965	312,176
Pass [Member] | Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	434,991	424,225
Pass [Member] | Consumer Portfolio Segment [Member]
Loans, total	18,082	18,742
Special Mention [Member]
Loans, total	17,876	11,829
Special Mention [Member] | Commercial And Industrial [Member]
Loans, total	8,955	1,942
Special Mention [Member] | Real Estate Construction Porfolio Segment [Member]
Loans, total
Special Mention [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	715	723
Special Mention [Member] | Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	8,206	9,164
Substandard [Member]
Loans, total	14,358	13,625
Substandard [Member] | Commercial And Industrial [Member]
Loans, total	3,439	3,783
Substandard [Member] | Real Estate Construction Porfolio Segment [Member]
Loans, total		22
Substandard [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	5,176	5,258
Substandard [Member] | Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	5,569	4,558
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans, total	174	$ 4
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 8 - Loans and Related Al53

Note 8 - Loans and Related Allowance for Loan and Lease Losses - Past Due Financing Receivables (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Loans, current balance	$ 925,411	$ 915,131
Loans, past due	6,963	8,082
Loans, total	932,374	923,213
Financing Receivables, 30 to 59 Days Past Due [Member]
Loans, past due	3,821	5,501
Financing Receivables, 60 to 89 Days Past Due [Member]
Loans, past due	1,166	257
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans, past due	1,976	2,324
Commercial And Industrial [Member]
Loans, current balance	99,201	99,633
Loans, past due	608	1,713
Loans, total	99,809	101,346
Commercial And Industrial [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans, past due	175	1,607
Commercial And Industrial [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans, past due	366	29
Commercial And Industrial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans, past due	67	77
Real Estate Construction Porfolio Segment [Member]
Loans, current balance	48,647	47,017
Loans, past due	40	0
Loans, total	48,687	47,017
Real Estate Construction Porfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans, past due	40	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	313,459	314,866
Loans, past due	3,397	3,291
Loans, total	316,856	318,157
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, current balance	445,861	434,879
Loans, past due	2,905	3,068
Loans, total	448,766	437,947
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Residential Loan [Member]
Loans, past due	1,943	1,977
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Loans [Member]
Loans, past due	1,652	1,907
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Residential Loan [Member]
Loans, past due	538	227
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Loans [Member]
Loans, past due	260	1
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Residential Loan [Member]
Loans, past due	916	1,087
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Loans [Member]
Loans, past due	993	1,160
Consumer Portfolio Segment [Member]
Loans, current balance	18,243	18,736
Loans, past due	13	10
Loans, total	18,256	18,746
Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans, past due	11	10
Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans, past due	2	0
Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans, past due	$ 0	$ 0

Note 8 - Loans and Related Al54

Note 8 - Loans and Related Allowance for Loan and Lease Losses - Classes of the Loan Portfolio Summarized by Nonaccrual Loans and Still Accruing (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Loans, nonacrrual status	$ 8,747	$ 8,433
Loans, 90+ days past due and accruing	0	0
Commercial And Industrial [Member]
Loans, nonacrrual status	1,351	1,120
Loans, 90+ days past due and accruing	0	0
Real Estate Construction Porfolio Segment [Member]
Loans, nonacrrual status		0
Loans, 90+ days past due and accruing	0	0
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, nonacrrual status	3,934	4,002
Loans, 90+ days past due and accruing	0	0
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, nonacrrual status	3,462	3,311
Loans, 90+ days past due and accruing	0	0
Consumer Portfolio Segment [Member]
Loans, nonacrrual status		0
Loans, 90+ days past due and accruing	$ 0	$ 0

Note 8 - Loans and Related Al55

Note 8 - Loans and Related Allowance for Loan and Lease Losses - Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)
Commercial And Industrial [Member]
Number of contracts	2	1
Pre-modification outstanding recorded investment	$ 6,977	$ 50
Post-modification outstanding recorded investment	$ 6,977	$ 50
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Number of contracts	2	2
Pre-modification outstanding recorded investment	$ 63	$ 36
Post-modification outstanding recorded investment	$ 63	$ 36
Extended Maturity [Member] | Commercial And Industrial [Member]
Number of contracts	2	1
Extended Maturity [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Number of contracts	2	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