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Note 4 - Loans Receivable and Allowance for Loan and Lease Losses - Non-accrual Loans (Details) - Business Activities Loans [Member] - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Non-accruing loans	$ 21,593	$ 18,049
Performing Financial Instruments [Member]
Performing (accruing) loans, past due	3,787	4,441
Performing (accruing) loans, current	767,120	789,674
Commercial Real Estate Portfolio Segment [Member]
Non-accruing loans	15,019	11,961
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	1,718
Performing (accruing) loans, current	285,413	302,453
Residential Portfolio Segment [Member]
Non-accruing loans	3,347	3,228
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	1,186	658
Performing (accruing) loans, current	163,949	171,603
Commercial Portfolio Segment [Member]
Non-accruing loans	1,725	2,094
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	865	956
Performing (accruing) loans, current	161,013	170,825
Consumer Portfolio Segment [Member]
Non-accruing loans	1,502	766
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	18	2,827
Performing (accruing) loans, current	86,805	82,341
Non-Accrual Loans [Member]
Performing (accruing) loans, past due	11,262	5,381
Performing (accruing) loans, current	10,331	12,668
Substandard [Member]
Non-accruing loans	21,593
Substandard [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	764
Performing (accruing) loans, current	18,498
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Non-accruing loans	15,019	11,961
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Performing (accruing) loans, current	4,649	6,086
Substandard [Member] | Residential Portfolio Segment [Member]
Non-accruing loans	3,347	3,228
Substandard [Member] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Performing (accruing) loans, current	252	1,700
Substandard [Member] | Commercial Portfolio Segment [Member]
Non-accruing loans	1,725	2,094
Substandard [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	764
Performing (accruing) loans, current	13,476	7,942
Substandard [Member] | Consumer Portfolio Segment [Member]
Non-accruing loans	1,502	766
Substandard [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Performing (accruing) loans, current	121
Substandard [Member] | Non-Accrual Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Performing (accruing) loans, past due	6,208	1,636
Performing (accruing) loans, current	8,811	10,325
Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due	2,755	1,872
Performing (accruing) loans, current	592	1,356
Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member]
Performing (accruing) loans, past due	1,725	1,724
Performing (accruing) loans, current		370
Non-accruing loans		2,094
Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Substandard [Member] | Non-Accrual Loans [Member] | Consumer Portfolio Segment [Member]
Performing (accruing) loans, past due	574	149
Performing (accruing) loans, current	928	617
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	2,367	4,069
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	860
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	632	658
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	865	606
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	10	2,805
Financial Asset, 30 to 59 Days Past Due [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	778
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	764
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
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	764
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
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due	778
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member]
Performing (accruing) loans, past due	0
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Consumer Portfolio Segment [Member]
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	557	353
Financial Asset, 60 to 89 Days Past Due [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] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	554
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		350
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	3	3
Financial Asset, 60 to 89 Days Past Due [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	520
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
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
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
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due	25
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member]
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Consumer Portfolio Segment [Member]
Performing (accruing) loans, past due	495
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	863	19
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	858
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	5	19
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	9,964	5,381
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [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 Real Estate 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] | 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	6,208	1,636
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	1,952	1,872
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	1,725	1,724
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	$ 79	$ 149

X

- Definition

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