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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	Mar. 31, 2020	Dec. 31, 2019
Non-accruing loans	$ 16,450	$ 18,049
Performing Financial Instruments [Member]
Performing (accruing) loans, past due	6,975	4,441
Performing (accruing) loans, current	795,416	789,674
Commercial Real Estate Portfolio Segment [Member]
Non-accruing loans	10,444	11,961
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	5,112
Performing (accruing) loans, current	288,936	302,453
Residential Portfolio Segment [Member]
Non-accruing loans	3,200	3,228
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	201	658
Performing (accruing) loans, current	168,394	171,603
Commercial Portfolio Segment [Member]
Non-accruing loans	2,086	2,094
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	1,359	956
Performing (accruing) loans, current	176,012	170,825
Consumer Portfolio Segment [Member]
Non-accruing loans	720	766
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	303	2,827
Performing (accruing) loans, current	95,597	82,341
Non-Accrual Loans [Member]
Performing (accruing) loans, past due	15,377	5,381
Performing (accruing) loans, current	1,073	12,668
Substandard [Member]
Non-accruing loans	16,450
Substandard [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	397
Performing (accruing) loans, current	20,316
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Non-accruing loans	10,444	11,961
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Performing (accruing) loans, current	5,241	6,086
Substandard [Member] | Residential Portfolio Segment [Member]
Non-accruing loans	3,200	3,228
Substandard [Member] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Performing (accruing) loans, current	977	1,700
Substandard [Member] | Commercial Portfolio Segment [Member]
Non-accruing loans	2,086	2,094
Substandard [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	397
Performing (accruing) loans, current	14,098	7,942
Substandard [Member] | Consumer Portfolio Segment [Member]
Non-accruing loans	720	766
Substandard [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due
Performing (accruing) loans, current
Substandard [Member] | Non-Accrual Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Performing (accruing) loans, past due	10,444	1,636
Performing (accruing) loans, current		10,325
Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due	2,656	1,872
Performing (accruing) loans, current	544	1,356
Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member]
Performing (accruing) loans, past due	2,086	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	191	149
Performing (accruing) loans, current	529	617
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	6,975	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	5,112
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	201	658
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	1,359	606
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	303	2,805
Financial Asset, 30 to 59 Days Past Due [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	9,733
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due	397
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	397
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	8,811
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due	843
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	79
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		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
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
Financial Asset, 60 to 89 Days Past Due [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	370
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	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	370
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Consumer Portfolio Segment [Member]
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member]
Performing (accruing) loans, past due		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
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		19
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	5,274	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	1,633	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	1,813	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	1,716	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	$ 112	$ 149

X

- Definition

Amount of financing receivable not past due.

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