Number of financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

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Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

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Note 4 - Loans and Allowance for Loan Losses - TDRs Pre-modification and Post-modification (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017 USD ($)	Sep. 30, 2018	Sep. 30, 2017 USD ($)
Number of Loans	0	1	0	4
Performing Financial Instruments [Member]
Pre-modification recorded investment		$ 412		$ 1,413
Post-modification recorded investment		412		1,413
Nonperforming Financial Instruments [Member]
Pre-modification recorded investment
Post-modification recorded investment
Residential Portfolio Segment [Member] \| Maturity Extension at Lower Stated Rate Than Market Rate [Member]
Number of Loans				1
Residential Portfolio Segment [Member] \| Maturity Extension at Lower Stated Rate Than Market Rate [Member] \| Performing Financial Instruments [Member]
Pre-modification recorded investment				$ 231
Post-modification recorded investment				231
Residential Portfolio Segment [Member] \| Maturity Extension at Lower Stated Rate Than Market Rate [Member] \| Nonperforming Financial Instruments [Member]
Pre-modification recorded investment
Post-modification recorded investment
Commercial Real Estate Portfolio Segment [Member] \| Interest Rate Below Market Reduction [Member] \| Commercial Real Estate Owner Occupied [Member]
Number of Loans		1		1
Commercial Real Estate Portfolio Segment [Member] \| Interest Rate Below Market Reduction [Member] \| Commercial Real Estate Owner Occupied [Member] \| Performing Financial Instruments [Member]
Pre-modification recorded investment		$ 412		$ 412
Post-modification recorded investment		412		412
Commercial Real Estate Portfolio Segment [Member] \| Interest Rate Below Market Reduction [Member] \| Commercial Real Estate Owner Occupied [Member] \| Nonperforming Financial Instruments [Member]
Pre-modification recorded investment
Post-modification recorded investment
Commercial and Industrial Portfolio Segment [Member] \| Maturity Extension at Lower Stated Rate Than Market Rate [Member]
Number of Loans				2
Commercial and Industrial Portfolio Segment [Member] \| Maturity Extension at Lower Stated Rate Than Market Rate [Member] \| Performing Financial Instruments [Member]
Pre-modification recorded investment				$ 770
Post-modification recorded investment				770
Commercial and Industrial Portfolio Segment [Member] \| Maturity Extension at Lower Stated Rate Than Market Rate [Member] \| Nonperforming Financial Instruments [Member]
Pre-modification recorded investment
Post-modification recorded investment