Note 4 - Loans - Impaired Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Recorded investment with no related allowance recorded	$ 7,206	$ 10,328
Unpaid principal balance with no related allowance recorded	9,047	12,494
Recorded investment with related allowance recorded	523	775
Unpaid principal balance with related allowance recorded	523	775
Related allowance	159	192
Recorded investment	7,729	11,103
Unpaid principle balance	9,570	13,269
Commercial Portfolio Segment [Member]
Recorded investment with no related allowance recorded	1,541	1,577
Unpaid principal balance with no related allowance recorded	1,899	1,932
Recorded investment with related allowance recorded	395	456
Unpaid principal balance with related allowance recorded	395	456
Related allowance	99	114
Recorded investment	1,936	2,033
Unpaid principle balance	2,294	2,388
Commercial Real Estate Portfolio Segment [Member]
Related allowance	0	0
Recorded investment	695	3,734
Unpaid principle balance	745	3,860
Commercial Real Estate Portfolio Segment [Member] \| Commercial Non-owner Occupied [Member]
Recorded investment with no related allowance recorded	606	640
Unpaid principal balance with no related allowance recorded	652	654
Commercial Real Estate Portfolio Segment [Member] \| Commercial Owner Occupied Loan [Member]
Recorded investment with no related allowance recorded	89	3,094
Unpaid principal balance with no related allowance recorded	93	3,206
Residential Portfolio Segment [Member]
Related allowance	56	74
Recorded investment	5,082	5,318
Unpaid principle balance	6,515	7,003
Residential Portfolio Segment [Member] \| Real Estate Loan [Member] \| Individual Tax Identification Number Loan [Member]
Recorded investment with no related allowance recorded	4,836	4,876
Unpaid principal balance with no related allowance recorded	6,206	6,500
Recorded investment with related allowance recorded		175
Unpaid principal balance with related allowance recorded		175
Related allowance		11
Residential Portfolio Segment [Member] \| Real Estate Loan [Member] \| Mortgage Receivable [Member]
Recorded investment with no related allowance recorded	134	141
Unpaid principal balance with no related allowance recorded	197	202
Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Recorded investment with related allowance recorded	112	126
Unpaid principal balance with related allowance recorded	112	126
Related allowance	56	63
Consumer Portfolio Segment [Member]
Recorded investment with related allowance recorded	16	18
Unpaid principal balance with related allowance recorded	16	18
Related allowance	4	4
Recorded investment	16	18
Unpaid principle balance	$ 16	$ 18

Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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-Name Accounting Standards Codification
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