Note 2 - Securities - Cost of Restricted Stock (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Total restricted stock	$ 8,046	$ 8,715
FRB Stock [Member]
Total restricted stock	6,490	6,458
FHLB Stock [Member]
Total restricted stock	$ 1,556	$ 2,257

The cost of the restricted investment.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
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-Section 45
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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