Note 9 - Short-term Borrowings - Overnight Repurchase Agreement Collateralized Investment Securities (Details) - Securities Sold under Agreements to Repurchase [Member] - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Securities sold under repurchase agreements	$ 517	$ 3,420
Less: overcollateralized position	517	1,227
Assets sold		2,193
U.S. govt. sponsored agency securities
Securities sold under repurchase agreements		1,964
Residential mortgage-backed and related securities
Securities sold under repurchase agreements	$ 517	$ 1,456

Amount of overcapitalized position that is intend to cover any minor interest rate movement.

No definition available.

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- Definition

Carrying amount of assets sold under agreements to repurchase when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under repurchase agreements exceeds 10 percent of total assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(m)(1)(i)(A)(i))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

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Period Type:	instant

- Definition

Amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(m)(1)(i)(A)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

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- Details

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- Details

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- Details

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