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Note 4 - Credit Quality (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)		Jun. 30, 2020 USD ($)
Loans and Leases Receivable, Gross, Carrying Amount, Covered	$ 9,041		$ 9,680	[1]
Financing Receivable, Collectively Evaluated for Impairment			2,138,921
Financing Receivable, Nonaccrual	26,106		22,003
Financing Receivable, Nonaccrual, Interest Income	$ 9
Performing Status Returned Period (Month)	6 months
Financing Receivable, Number of Loans Modified During Period	3,812
Financing Receivable, Loans Modified During Period	$ 466,590
Financing Receivable, Deferred Payments	17,480				$ 436,110
Financing Receivable, Troubled Debt Restructuring, Subsequent Default	0	$ 209
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts		1
Impaired Loans [Member]
Financing Receivable, Collectively Evaluated for Impairment			31,180
Covered Loans [Member]
Financing Receivable, Nonaccrual	359		297
Non-covered Loans [Member]
Financing Receivable, 90 Days or More Past Due, Still Accruing	$ 171		$ 295
[1] Derived from audited financial statements

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- Definition

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+ References

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+ References

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Amount of interest income on financing receivable on nonaccrual status.

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