Note 23 - Fair Value of Financial Instruments - Estimated Fair Value and Related Carrying or Notional Amounts of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Assets:
Investment securities available-for-sale	$ 132,487	$ 153,871
Investment securities held-to-maturity	20,852	25,949
Reported Value Measurement [Member]
Assets:
Cash and cash equivalents	49,599	27,124
Investment securities available-for-sale	132,487	153,871
Investment securities held-to-maturity	21,462	26,279
Federal funds sold	8,354	15,000
Federal Home Loan Bank stock	703	1,609
Loans, net of allowance for loan losses	514,867	346,121
Other assets – derivatives		443
Liabilities:
Deposits	704,725	517,079
Short-term borrowings	527	15,594
Long-term debt		10,000
Estimate of Fair Value Measurement [Member]
Assets:
Cash and cash equivalents	49,599	27,124
Investment securities available-for-sale	132,487	153,871
Investment securities held-to-maturity	20,852	25,949
Federal funds sold	8,354	15,000
Federal Home Loan Bank stock	703	1,609
Loans, net of allowance for loan losses	516,420	342,248
Other assets – derivatives		443
Liabilities:
Deposits	702,832	515,645
Short-term borrowings	527	15,594
Long-term debt		9,998
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets:
Cash and cash equivalents	49,599	27,124
Investment securities available-for-sale
Investment securities held-to-maturity
Federal funds sold
Federal Home Loan Bank stock
Loans, net of allowance for loan losses
Other assets – derivatives
Liabilities:
Deposits
Short-term borrowings
Long-term debt
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets:
Cash and cash equivalents
Investment securities available-for-sale	132,487	153,871
Investment securities held-to-maturity	20,852	25,949
Federal funds sold	8,354	15,000
Federal Home Loan Bank stock
Loans, net of allowance for loan losses
Other assets – derivatives		443
Liabilities:
Deposits	702,832	515,645
Short-term borrowings	527	15,594
Long-term debt		9,998
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets:
Cash and cash equivalents
Investment securities available-for-sale
Investment securities held-to-maturity
Federal funds sold
Federal Home Loan Bank stock	703	1,609
Loans, net of allowance for loan losses	516,420	342,248
Other assets – derivatives
Liabilities:
Deposits
Short-term borrowings
Long-term debt

Fair value portion of federal funds sold.

No definition available.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
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-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

No definition available.

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- Definition

Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

+ References

No definition available.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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- References

No definition available.

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- References

No definition available.

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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

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- Definition

Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock.

+ References

No definition available.

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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2196772

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

+ References

No definition available.

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