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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	Sep. 30, 2019	Dec. 31, 2018
Non-accruing loans	$ 19,183	$ 19,186
Commercial Real Estate Portfolio Segment [Member]
Non-accruing loans	12,916	3,525
Residential Portfolio Segment [Member]
Non-accruing loans	3,243	2,006
Commercial Portfolio Segment [Member]
Non-accruing loans	2,259	4,681
Consumer Portfolio Segment [Member]
Non-accruing loans	765	174
Construction Portfolio Segment [Member]
Non-accruing loans		8,800
Substandard [Member]
Non-accruing loans	19,183	19,186
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Non-accruing loans	12,916	3,525
Substandard [Member] | Residential Portfolio Segment [Member]
Non-accruing loans	3,243	2,006
Substandard [Member] | Commercial Portfolio Segment [Member]
Non-accruing loans	2,259	4,681
Substandard [Member] | Consumer Portfolio Segment [Member]
Non-accruing loans	765	174
Substandard [Member] | Construction Portfolio Segment [Member]
Non-accruing loans		8,800
Substandard [Member] | Commercial and Industrial Portfolio Segment [Member]
Non-accruing loans		4,681
Substandard [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	8,403	18,384
Performing (accruing) loans, current	10,780	802
Substandard [Member] | Non-Accrual Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Performing (accruing) loans, past due	4,116	3,525
Performing (accruing) loans, current	8,800
Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due	1,878	2,006
Performing (accruing) loans, current	1,365
Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member]
Performing (accruing) loans, past due	2,259
Performing (accruing) loans, current
Substandard [Member] | Non-Accrual Loans [Member] | Consumer Portfolio Segment [Member]
Performing (accruing) loans, past due	150	97
Performing (accruing) loans, current	615	77
Substandard [Member] | Non-Accrual Loans [Member] | Construction Portfolio Segment [Member]
Performing (accruing) loans, past due		8,800
Performing (accruing) loans, current
Substandard [Member] | Non-Accrual Loans [Member] | Commercial and Industrial Portfolio Segment [Member]
Performing (accruing) loans, past due		3,956
Performing (accruing) loans, current		725
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	1,581	1,580
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	1,548	1,580
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due
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	33
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Construction Portfolio Segment [Member]
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial and Industrial Portfolio Segment [Member]
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	628	101
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	537
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Residential Portfolio Segment [Member]
Performing (accruing) loans, past due	60
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial Portfolio Segment [Member]
Performing (accruing) loans, past due	31
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Consumer Portfolio Segment [Member]
Performing (accruing) loans, past due		86
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Construction Portfolio Segment [Member]
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial and Industrial Portfolio Segment [Member]
Performing (accruing) loans, past due		15
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member]
Performing (accruing) loans, past due	6,194	16,703
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	2,031	1,945
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	1,818	2,006
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	2,228
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	117	11
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Construction Portfolio Segment [Member]
Performing (accruing) loans, past due		8,800
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Substandard [Member] | Non-Accrual Loans [Member] | Commercial and Industrial Portfolio Segment [Member]
Performing (accruing) loans, past due		$ 3,941

X

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