Note 4 - Loans/Leases Receivable - Loans Leases Nonperforming Loans Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accruing Past Due 90 Days or More		$ 1
Nonaccrual Loans/Leases	$ 8,765	2,759
Financing Receivable, before Allowance for Credit Loss	$ 6,138,871	$ 4,680,132
Percentage of Total NPLs	100.00%	100.00%
C&I - revolving
Financing Receivable, before Allowance for Credit Loss	$ 296,869
Nonperforming Financial Instruments [Member]
Accruing Past Due 90 Days or More	5	$ 1
Nonaccrual Loans/Leases	6,787	1,757
Nonaccrual Loans/Leases without an Allowance for Credit Losses	1,978
Accruing TDRs		1,002
Financing Receivable, before Allowance for Credit Loss	$ 8,770	$ 2,760
Percentage of Total NPLs	100.00%	100.00%
Nonperforming Financial Instruments [Member] \| C&I - other
Accruing Past Due 90 Days or More	$ 5	$ 1
Nonaccrual Loans/Leases	2,775	1,130
Nonaccrual Loans/Leases without an Allowance for Credit Losses	360
Accruing TDRs		270
Financing Receivable, before Allowance for Credit Loss	$ 3,140	$ 1,401
Percentage of Total NPLs	35.80%	50.77%
Commercial Portfolio Segment [Member]
Financing Receivable, before Allowance for Credit Loss	$ 1,748,562	$ 1,595,085
Commercial Portfolio Segment [Member] \| C&I - other
Accruing Past Due 90 Days or More		1
Nonaccrual Loans/Leases	3,135	1,400
Financing Receivable, before Allowance for Credit Loss	1,451,693	1,346,602
Commercial Portfolio Segment [Member] \| C&I - revolving
Financing Receivable, before Allowance for Credit Loss	296,869	248,483
Commercial Portfolio Segment [Member] \| Construction Loans [Member]
Financing Receivable, before Allowance for Credit Loss	1,192,061	918,571
Commercial Portfolio Segment [Member] \| Nonperforming Financial Instruments [Member] \| C&I - other
Financing Receivable, before Allowance for Credit Loss	2,680	1,340
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Commercial Real Estate Loans [Member]
Nonaccrual Loans/Leases	2,590
Financing Receivable, before Allowance for Credit Loss	629,367	421,701
Commercial Real Estate Portfolio Segment [Member] \| CRE - non owner occupied
Nonaccrual Loans/Leases	374
Financing Receivable, before Allowance for Credit Loss	963,239	646,500
Commercial Real Estate Portfolio Segment [Member] \| Nonperforming Financial Instruments [Member] \| Owner Occupied Commercial Real Estate Loans [Member]
Nonaccrual Loans/Leases	1,738
Nonaccrual Loans/Leases without an Allowance for Credit Losses	852
Financing Receivable, before Allowance for Credit Loss	$ 2,590
Percentage of Total NPLs	29.53%
Commercial Real Estate Portfolio Segment [Member] \| Nonperforming Financial Instruments [Member] \| CRE - non owner occupied
Nonaccrual Loans/Leases	$ 68
Nonaccrual Loans/Leases without an Allowance for Credit Losses	306
Financing Receivable, before Allowance for Credit Loss	$ 374
Percentage of Total NPLs	4.26%
Construction and Land Development [Member]
Financing Receivable, before Allowance for Credit Loss	$ 1,192,061
Construction and Land Development [Member] \| Construction Loans [Member]
Nonaccrual Loans/Leases	132	73
Financing Receivable, before Allowance for Credit Loss	1,192,061	918,571
Construction and Land Development [Member] \| Nonperforming Financial Instruments [Member] \| Construction Loans [Member]
Nonaccrual Loans/Leases	132	73
Financing Receivable, before Allowance for Credit Loss	$ 132	$ 73
Percentage of Total NPLs	1.51%	2.64%
Multi-family
Financing Receivable, before Allowance for Credit Loss	$ 963,803	$ 600,412
Direct financing leases
Nonaccrual Loans/Leases	135	847
Financing Receivable, before Allowance for Credit Loss	31,889	45,191
Direct financing leases \| Nonperforming Financial Instruments [Member]
Nonaccrual Loans/Leases	80	115
Nonaccrual Loans/Leases without an Allowance for Credit Losses	55
Accruing TDRs		732
Financing Receivable, before Allowance for Credit Loss	$ 135	$ 847
Percentage of Total NPLs	1.54%	30.69%
1-4 family real estate
Nonaccrual Loans/Leases	$ 2,046	$ 408
Financing Receivable, before Allowance for Credit Loss	499,529	377,361
1-4 family real estate \| Nonperforming Financial Instruments [Member]
Nonaccrual Loans/Leases	1,641
Nonaccrual Loans/Leases without an Allowance for Credit Losses	405
Financing Receivable, before Allowance for Credit Loss	$ 2,046
Percentage of Total NPLs	23.33%
Residential real estate \| Nonperforming Financial Instruments [Member]
Nonaccrual Loans/Leases		408
Financing Receivable, before Allowance for Credit Loss		$ 408
Percentage of Total NPLs		14.78%
Consumer
Nonaccrual Loans/Leases	$ 353	$ 31
Financing Receivable, before Allowance for Credit Loss	110,421	75,311
Consumer \| Nonperforming Financial Instruments [Member]
Nonaccrual Loans/Leases	353
Financing Receivable, before Allowance for Credit Loss	$ 353	31
Percentage of Total NPLs	4.03%
Installment and other consumer loans \| Nonperforming Financial Instruments [Member]
Nonaccrual Loans/Leases		31
Financing Receivable, before Allowance for Credit Loss		$ 31
Percentage of Total NPLs		1.12%

Amount of financing receivable modified as troubled debt restructuring.

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Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

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Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

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Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

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Reflects the percentage derived from dividing impaired loans on which interest has ceased to be accrued by total loans.

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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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