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Note 14 - Disclosure of Financial Instruments Not Reported at Fair Value - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands		Mar. 31, 2024	Dec. 31, 2023
Cash and cash equivalents		$ 160,223	$ 265,959
Accrued interest receivable		26,074	26,830
Non-interest bearing		1,481,217	1,548,624
Time deposits	[1]	1,035,422	983,277
Accrued interest payable		2,194	2,094
Reported Value Measurement [Member]
Cash and cash equivalents		160,223	265,959
HTM debt securities		385,404	439,837
Federal Home Loan Bank stock		24,675	16,236
Loans, net		5,768,818	5,691,664
Accrued interest receivable		26,074	26,830
Non-interest bearing		1,481,217	1,548,624
Transaction deposits		4,092,441	4,138,847
Time deposits		1,035,422	983,277
Securities sold under agreement to repurchase		162,528	152,991
Federal funds purchased		9,961	12,852
Subordinated debentures		26,806	26,740
FHLB advances		200,000	200,000
Accrued interest payable		2,194	2,094
Estimate of Fair Value Measurement [Member]
Cash and cash equivalents		160,223	265,959
HTM debt securities		351,869	408,519
Federal Home Loan Bank stock		24,675	16,236
Loans, net		5,594,312	5,520,059
Accrued interest receivable		26,074	26,830
Non-interest bearing		1,481,217	1,548,624
Transaction deposits		4,092,441	4,138,847
Time deposits		1,029,116	976,841
Securities sold under agreement to repurchase		162,528	152,991
Federal funds purchased		9,961	12,852
Subordinated debentures		25,896	26,746
FHLB advances		193,213	200,047
Accrued interest payable		2,194	2,094
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents		160,223	265,959
HTM debt securities		149,193	198,327
Federal Home Loan Bank stock		0	0
Loans, net		0	0
Accrued interest receivable		26,074	26,830
Non-interest bearing		1,481,217	1,548,624
Transaction deposits		0	0
Time deposits		0	0
Securities sold under agreement to repurchase		0	0
Federal funds purchased		0	0
Subordinated debentures		0	0
FHLB advances		0	0
Accrued interest payable		2,194	2,094
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and cash equivalents		0	0
HTM debt securities		202,676	210,192
Federal Home Loan Bank stock		24,675	16,236
Loans, net		0	0
Accrued interest receivable		0	0
Non-interest bearing		0	0
Transaction deposits		4,092,441	4,138,847
Time deposits		1,029,116	976,841
Securities sold under agreement to repurchase		162,528	152,991
Federal funds purchased		9,961	12,852
Subordinated debentures		25,896	26,746
FHLB advances		193,213	200,047
Accrued interest payable		0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and cash equivalents		0	0
HTM debt securities		0	0
Federal Home Loan Bank stock		0	0
Loans, net		5,594,312	5,520,059
Accrued interest receivable		0	0
Non-interest bearing		0	0
Transaction deposits		0	0
Time deposits		0	0
Securities sold under agreement to repurchase		0	0
Federal funds purchased		0	0
Subordinated debentures		0	0
FHLB advances		0	0
Accrued interest payable		$ 0	$ 0
[1] Includes $364,000 and $597,000 in brokered deposits as of March 31, 2024 and December 31, 2023, respectively.

X

- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity)..

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No definition available.

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Represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount shown on the entity's books for investments made in Federal Home Loan Bank stock and other securities.

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The sum of cash and cash equivalents plus Federal Funds Sold. Cash and cash equivalents consist of short term, highly liquid investments that are readily convertible to known amounts of cash and are so near their maturity that they present negligible risk of changes in value due to changes in interest rates -- usually with an original maturity less than 90 days.

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Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

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Fair value portion of short term borrowing where a bank borrows, at the federal funds rate, from another bank.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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