Note 3 - Loans Receivable - Components of Provision for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Provision (credit) for credit losses - loans			$ 360	$ (700)	$ 700	$ (2,520)
Investment securities, provision for credit losses			0	0	0	0
Total, provision for credit losses	$ 332	$ (700)	332	(700)	304	(2,520)
Unfunded Loan Commitment [Member]
Provision (credit) for credit losses - loans			$ (28)	$ 0	$ (396)	$ 0

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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- Definition

Amount of credit loss expense (reversal of expense) for financing receivable.

+ References

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Amount of expense related to credit loss from transactions other than loan and lease transactions.

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