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Note 4 - Loan Receivables and Allowance for Loan and Lease Losses - Non-accrual Loans (Details) - Business Activities Loans [Member] - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Non-accruing loans	$ 24,587	$ 20,005
Performing Financial Instruments [Member]
Performing (accruing) loans, past due	9,023	8,486
Performing (accruing) loans, current	643,066	701,689
Commercial Real Estate Portfolio Segment [Member]
Non-accruing loans	17,034	14,534
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	1,618	363
Performing (accruing) loans, current	242,809	267,481
Residential Portfolio Segment [Member]
Non-accruing loans	4,464	3,854
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	592	839
Performing (accruing) loans, current	142,891	149,158
Commercial Portfolio Segment [Member]
Non-accruing loans	2,532	700
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	5,216	4,925
Performing (accruing) loans, current	131,218	138,672
Consumer Portfolio Segment [Member]
Non-accruing loans	557	917
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	7	8
Performing (accruing) loans, current	55,921	66,710
Non-Accrual Loans [Member]
Performing (accruing) loans, past due	9,365	9,420
Performing (accruing) loans, current	15,222	10,585
Substandard [Member]
Non-accruing loans	24,587	20,005
Substandard [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	2,428	1,079
Performing (accruing) loans, current	35,662	38,780
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Non-accruing loans	17,034	14,534
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	351	363
Performing (accruing) loans, current	7,017	10,999
Substandard [Member] | Residential Portfolio Segment [Member]
Non-accruing loans	4,464	3,854
Substandard [Member] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Performing (accruing) loans, current
Substandard [Member] | Commercial Portfolio Segment [Member]
Non-accruing loans	2,532	700
Substandard [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	2,077	716
Performing (accruing) loans, current	28,525	27,660
Substandard [Member] | Consumer Portfolio Segment [Member]
Non-accruing loans	557	917
Substandard [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Performing (accruing) loans, current	120	121
Substandard [Member] | Non-Accrual Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Performing (accruing) loans, past due	4,658	5,723
Performing (accruing) loans, current	12,376	8,811
Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due	2,145	2,884
Performing (accruing) loans, current	2,319	970
Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member]
Performing (accruing) loans, past due	2,532	700
Performing (accruing) loans, current	0
Non-accruing loans		700
Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		0
Substandard [Member] | Non-Accrual Loans [Member] | Consumer Portfolio Segment [Member]
Performing (accruing) loans, past due	30	113
Performing (accruing) loans, current	527	804
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	4,544	1,436
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	868	354
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	592	478
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	2,216	603
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	2	1
Financial Asset, 30 to 59 Days Past Due [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	1,786	22
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	2,428	957
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	351	354
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	2,077	603
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Performing (accruing) loans, past due	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member]
Performing (accruing) loans, past due	1,786
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Consumer Portfolio Segment [Member]
Performing (accruing) loans, past due		22
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	4,479	7,034
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	750
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		361
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	3,000	4,322
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	5
Financial Asset, 60 to 89 Days Past Due [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	86	0
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		113
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		113
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Performing (accruing) loans, past due	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due	23	0
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member]
Performing (accruing) loans, past due	63	0
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Consumer Portfolio Segment [Member]
Performing (accruing) loans, past due	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		16
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		9
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		7
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	7,493	9,398
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		9
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		9
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Performing (accruing) loans, past due	4,658	5,723
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due	2,122	2,884
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member]
Performing (accruing) loans, past due	683	700
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Consumer Portfolio Segment [Member]
Performing (accruing) loans, past due	$ 30	$ 91

X

- Definition

Amount of financing receivable not past due.

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