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Note 4 - Loans and Allowance for Loan Losses (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Increase (Decrease) in Other Loans			$ (7,007)
Change In Troubled Debt Restructurings			41.40%
Impaired Financing Receivable, Related Allowance	$ 499		$ 499		$ 94
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 73		$ 73		846
Financing Receivable, Modifications, Number of Contracts	0	1	0	4
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down		$ 0		$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Minimum Loan Balance For Loans Evaluated by Risk Categories	$ 500		$ 500
Percentage of Loan Portfolio	4.84%		4.84%
Troubled Debt Restructurings [Member]
Impaired Financing Receivable, Related Allowance	$ 90		$ 90		$ 94
Unsecured [Member]
Percentage of Loan Portfolio					4.86%
Residential Portfolio Segment [Member]
Real Estate Acquired Through Foreclosure	379		379		$ 262
Mortgage Loans in Process of Foreclosure, Amount	2,399		2,399		$ 2,410
Impaired Financing Receivable, Related Allowance	$ 409		$ 409

X

- Definition

The change during the period in loans modified as troubled debt restructurings.

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Minimum loan balance for impaired loans on nonaccrual status or nonperforming in nature.

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

+ References

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-SubTopic 10
-Section 50
-Paragraph 33
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Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

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Amount of allowance for credit losses related to recorded investment.

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Amount of increase (decrease) in loans classified as other.

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Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

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