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v3.23.1

Note 4 - Loans and Allowance for Credit Losses on Loans (Details Textual) Pure in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 USD ($) | Mar. 31, 2022 USD ($) | Dec. 31, 2022 USD ($)
Financing Receivable, Accrued Interest, after Allowance for Credit Loss |  | $ 16,000,000 |  | $ 17,000,000
Financing Receivable, before Allowance for Credit Loss | [1] | 5,243,104,000 |  | 5,205,918,000
Loans and Leases Receivable, Related Parties |  | 71,000,000 |  | 79,000,000
Financing Receivable, after Allowance for Credit Loss |  | 5,167,431,000 |  | 5,132,387,000
Financing Receivable, Purchased with Credit Deterioration, Interest Income |  | 1,100,000 | $ 459,000 |
Financing Receivable, Nonaccrual, Interest Income |  | 0 | 0 |
Mortgage Loans in Process of Foreclosure, Amount |  | $ 290,000 | $ 317,000 |
Financing Receivable, Modifications, Number of Contracts |  | 0 | 0 |
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts |  | 0 | 0 |
Commonwealth [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |  |  |
Financing Receivable, after Allowance for Credit Loss |  | $ 59,000,000 |  |
Asset Pledged as Collateral [Member] | Federal Home Loan Bank Advances [Member] |  |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 2,850,000,000 |  | $ 2,770,000,000
[1] | Total loans are presented inclusive of premiums, discounts and net loan origination fees and costs.

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- Definition Amount, after allowance for credit loss, of accrued interest on financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3A -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3A + Details
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