Note 4 - Loans Leases Receivable - Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan
Number of Loans / Leases	3	4
Pre-Modification Recorded Investment	$ 2,599	$ 1,022
Post-Modification Recorded Investment	2,599	$ 1,022
Specific Allowance	$ 189
Payment Deferral [Member]
Number of Loans / Leases \| loan		3
Pre-Modification Recorded Investment		$ 187
Post-Modification Recorded Investment		$ 187
Interest Rate Adjusted Below Market
Number of Loans / Leases \| loan	2
Pre-Modification Recorded Investment	$ 67
Post-Modification Recorded Investment	67
Specific Allowance	$ 7
Direct financing leases \| Payment Deferral [Member]
Number of Loans / Leases \| loan		2
Pre-Modification Recorded Investment		$ 112
Post-Modification Recorded Investment		$ 112
Commercial Portfolio Segment [Member] \| Payment Deferral [Member]
Number of Loans / Leases \| loan		1
Pre-Modification Recorded Investment		$ 75
Post-Modification Recorded Investment		$ 75
1-4 family real estate \| Extended Maturity [Member]
Number of Loans / Leases \| loan	1
Pre-Modification Recorded Investment	$ 2,532
Post-Modification Recorded Investment	2,532
Specific Allowance	$ 182
1-4 family real estate \| Interest Rate Adjusted Below Market
Number of Loans / Leases \| loan	1
Pre-Modification Recorded Investment	$ 54
Post-Modification Recorded Investment	54
Specific Allowance	$ 6
Commercial Real Estate Portfolio Segment [Member] \| Extended Maturity [Member]
Number of Loans / Leases \| loan		1
Pre-Modification Recorded Investment		$ 835
Post-Modification Recorded Investment		$ 835
Consumer \| Interest Rate Adjusted Below Market
Number of Loans / Leases \| loan	1
Pre-Modification Recorded Investment	$ 13
Post-Modification Recorded Investment	13
Specific Allowance	$ 1

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ 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=123577603&loc=SL6953676-111524

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- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

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- Definition

Amount, before troubled debt restructuring, of financing receivable to be modified.

+ References

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