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Note 4 - Loan Receivables and Allowance for Loan and Lease Losses - Recorded Investment in TDRs (Details) $ in Thousands	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Number of contracts	9	11
Recorded investment	$ 14,497	$ 15,886
TDRs included in non-accrual loans	$ (14,497)	$ (15,886)
Non-Accrual Loans [Member]
Number of contracts	4	6
Recorded investment	$ 10,120	$ 11,508
TDRs included in non-accrual loans	$ (10,120)	$ (11,508)
Accrual Loans [Member]
Number of contracts	5	5
Recorded investment	$ 4,377	$ 4,378
TDRs included in non-accrual loans	$ (4,377)	$ (4,378)
Commercial Real Estate Portfolio Segment [Member]
Number of contracts	1	2
Recorded investment	$ 8,811	$ 9,884
TDRs included in non-accrual loans	$ (8,811)	$ (9,884)
Residential Portfolio Segment [Member]
Number of contracts	3	3
Recorded investment	$ 912	$ 928
TDRs included in non-accrual loans	$ (912)	$ (928)
Commercial Portfolio Segment [Member]
Number of contracts	1	1
Recorded investment	$ 4,000	$ 4,000
TDRs included in non-accrual loans	$ (4,000)	$ (4,000)
Consumer Portfolio Segment [Member]
Number of contracts	4	5
Recorded investment	$ 774	$ 1,074
TDRs included in non-accrual loans	$ (774)	$ (1,074)

X

- Definition

Represents the number of financing receivables that have been modified as troubled debt restructuring as of a specified point in time.

+ References

No definition available.

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X

- Definition

Amount of financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

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