Note 5 - Loans and Leases - Non-accrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Nonaccrual with no allowance	$ 2,529	$ 1,813
Nonaccrual with allowance	813	722
Nonaccrual loans	3,342	2,535
Loans Past Due and Still Accruing	17	33
Commercial Portfolio Segment [Member] \| Commercial [Member]
Nonaccrual with no allowance	620	580
Nonaccrual with allowance	119	139
Nonaccrual loans	739	719
Loans Past Due and Still Accruing	0	0
Commercial Portfolio Segment [Member] \| Municipal [Member]
Nonaccrual with no allowance	0	0
Nonaccrual with allowance	0	0
Nonaccrual loans	0	0
Loans Past Due and Still Accruing	0	0
Commercial Real Estate Portfolio Segment [Member] \| Non-owner Occupied [Member]
Nonaccrual with no allowance	143	168
Nonaccrual with allowance	168	215
Nonaccrual loans	311	383
Loans Past Due and Still Accruing	0	0
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member]
Nonaccrual with no allowance	1,472	716
Nonaccrual with allowance	476	350
Nonaccrual loans	1,948	1,066
Loans Past Due and Still Accruing	0	0
Consumer Portfolio Segment [Member] \| Home Equity Loan [Member]
Nonaccrual with no allowance	0	0
Nonaccrual with allowance	0	0
Nonaccrual loans	0	0
Loans Past Due and Still Accruing	0	0
Consumer Portfolio Segment [Member] \| Home Equity Line of Credit [Member]
Nonaccrual with no allowance	75	211
Nonaccrual with allowance	0	0
Nonaccrual loans	75	211
Loans Past Due and Still Accruing	0	0
Consumer Portfolio Segment [Member] \| Automobile Loan [Member] \| Recourse [Member]
Nonaccrual with no allowance	11	135
Nonaccrual with allowance	0	18
Nonaccrual loans	11	153
Loans Past Due and Still Accruing	0	0
Consumer Portfolio Segment [Member] \| Automobile Loan [Member] \| Nonrecourse [Member]
Nonaccrual with no allowance	120	0
Nonaccrual with allowance	50	0
Nonaccrual loans	170	0
Loans Past Due and Still Accruing	0	16
Consumer Portfolio Segment [Member] \| Direct Financing Lease [Member]
Nonaccrual with no allowance	0	0
Nonaccrual with allowance	0	0
Nonaccrual loans	0	0
Loans Past Due and Still Accruing	17	17
Consumer Portfolio Segment [Member] \| Other Loan [Member]
Nonaccrual with no allowance	2	0
Nonaccrual with allowance	0	0
Nonaccrual loans	2	0
Loans Past Due and Still Accruing	0	0
Residential Portfolio Segment [Member] \| Real Estate Loan [Member]
Nonaccrual with no allowance	86	3
Nonaccrual with allowance	0	0
Nonaccrual loans	86	3
Loans Past Due and Still Accruing	$ 0	$ 0

Amortized cost of financing receivable on nonaccrual status with allowance for credit loss. Excludes net investment in lease.

No definition available.

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- Definition

Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (d)
-Publisher FASB
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- Definition

Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 80
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-80

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-Publisher FASB
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- Definition

Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-16

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-Name Regulation S-K (SK)
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