Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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The calculated weighted average interest rate for Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

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Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Note 11 - Borrowing Arrangements (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Loans and Leases Receivable, Gross	$ 3,045,946,000		$ 3,045,946,000		$ 2,931,350,000
Long-Term Federal Home Loan Bank Advances, Total	$ 150,000,000.0		$ 150,000,000.0
Federal Home Loan Bank, Advances, Activity for Year, Average Interest Rate at Period End	1.37%		1.37%
Advances from Federal Home Loan Banks, Total	$ 250,000,000		$ 250,000,000		150,000,000
Federal Home Loan Bank Advances [Member]
Debt Instrument, Term (Year)			5 years
Interest Paid, Including Capitalized Interest, Operating and Investing Activities, Total	518,000	$ 440,000	$ 954,000	$ 875,000
Federal Reserve Bank of San Francisco Secured Line of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity	12,400,000		12,400,000
Federal Reserve Bank of San Francisco Secured Line of Credit [Member] \| Asset Pledged as Collateral [Member]
Loans and Leases Receivable, Gross	16,800,000		16,800,000
Federal Home Loan Bank Secured Line of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity	913,500,000		913,500,000
Federal Home Loan Bank Secured Line of Credit [Member] \| Asset Pledged as Collateral [Member]
Loans and Leases Receivable, Gross	1,200,000,000		1,200,000,000
Federal Home Loan Bank Overnight Advances [Member]
Long-Term Federal Home Loan Bank Advances, Total	100,000,000.0		100,000,000.0
Advances from Federal Home Loan Banks, Total	0		0		$ 0
Zions Bank [Member]
Line of Credit Facility, Maximum Borrowing Capacity	20,000,000.0		20,000,000.0
Wells Fargo Bank [Member]
Line of Credit Facility, Maximum Borrowing Capacity	10,000,000.0		10,000,000.0
Wells Fargo Bank [Member] \| Line of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity	2,000,000.0		2,000,000.0
First Horizon National Bank [Member]
Line of Credit Facility, Maximum Borrowing Capacity	12,000,000.0		12,000,000.0
Pacific Coast Bankers' Bank [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 50,000,000.0		$ 50,000,000.0