Note 8 - Derivatives - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2020	Dec. 31, 2019
Interest rate swap receivable	$ 1,295	$ 694
Interest Rate Swap One [Member] \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Notional Amount	$ 4,919	$ 4,944
Derivative, Maturity (Year)	9 years 36 days	9 years 109 days
Derivative, Fixed Rate	5.25%	5.25%
Derivative, Variable Rate	1.96%	1.96%
Derivative Liability, Notional Amount	$ 4,919	$ 4,944
Interest Rate Swap One [Member] \| Not Designated as Hedging Instrument [Member] \| Other Assets [Member]
Interest rate swap receivable	1,082	617
Interest Rate Swap One [Member] \| Not Designated as Hedging Instrument [Member] \| Other Liabilities [Member]
Derivative Liability, Fair Value	(1,082)	(617)
Interest Rate Swap Two [Member] \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Notional Amount	$ 1,444	$ 1,444
Derivative, Maturity (Year)	9 years 109 days	9 years 182 days
Derivative, Fixed Rate	4.38%	4.38%
Derivative, Variable Rate	2.00%	2.00%
Derivative Liability, Notional Amount	$ 1,444	$ 1,444
Interest Rate Swap Two [Member] \| Not Designated as Hedging Instrument [Member] \| Other Assets [Member]
Interest rate swap receivable	213	77
Interest Rate Swap Two [Member] \| Not Designated as Hedging Instrument [Member] \| Other Liabilities [Member]
Derivative Liability, Fair Value	$ (213)	$ (77)

Nominal or face amount used to calculate payments on the derivative asset.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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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.

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- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or 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 liabilities not subject to a master netting arrangement and not elected to be offset.

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- Definition

Nominal or face amount used to calculate payments on the derivative liability.

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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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