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Earnings Per Share ("EPS") Sheet http://investor.everettbank.com/20251231/role/statement-note-18-earnings-per-share-eps Note 18 - Earnings Per Share ("EPS") Notes 30 false false R31.htm 995570 - Disclosure - Note 19 - Derivative and Hedging Activities Sheet http://investor.everettbank.com/20251231/role/statement-note-19-derivative-and-hedging-activities Note 19 - Derivative and Hedging Activities Notes 31 false false R32.htm 995574 - Disclosure - Significant Accounting Policies (Policies) Sheet http://investor.everettbank.com/20251231/role/statement-significant-accounting-policies-policies Significant Accounting Policies (Policies) Policies http://investor.everettbank.com/20251231/role/statement-note-2-summary-of-significant-accounting-policies- 32 false false R33.htm 995575 - Disclosure - Note 3 - Investments in Securities (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-3-investments-in-securities-tables Note 3 - Investments in Securities (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-3-investments-in-securities 33 false false R34.htm 995576 - Disclosure - Note 4 - Loans, Allowance for Credit Losses and Credit Quality (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-4-loans-allowance-for-credit-losses-and-credit-quality-tables Note 4 - Loans, Allowance for Credit Losses and Credit Quality (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-4-loans-allowance-for-credit-losses-and-credit-quality 34 false false R35.htm 995577 - Disclosure - Note 5 - Premises and Equipment (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-5-premises-and-equipment-tables Note 5 - Premises and Equipment (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-5-premises-and-equipment- 35 false false R36.htm 995578 - Disclosure - Note 6 - Leases (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-6-leases-tables Note 6 - Leases (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-6-leases 36 false false R37.htm 995579 - Disclosure - Note 7 - Deposits (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-7-deposits-tables Note 7 - Deposits (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-7-deposits- 37 false false R38.htm 995580 - Disclosure - Note 8 - Borrowings (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-8-borrowings-tables Note 8 - Borrowings (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-8-borrowings- 38 false false R39.htm 995581 - Disclosure - Note 9 - Employee Benefit Plans (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-9-employee-benefit-plans-tables Note 9 - Employee Benefit Plans (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-9-employee-benefit-plans 39 false false R40.htm 995582 - Disclosure - Note 10 - Stock-based Compensation (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-10-stockbased-compensation-tables Note 10 - Stock-based Compensation (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-10-stockbased-compensation 40 false false R41.htm 995583 - Disclosure - Note 11 - Income Taxes (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-11-income-taxes-tables Note 11 - Income Taxes (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-11-income-taxes 41 false false R42.htm 995584 - Disclosure - Note 13 - Fair Value Measurements (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-13-fair-value-measurements-tables Note 13 - Fair Value Measurements (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-13-fair-value-measurements 42 false false R43.htm 995585 - Disclosure - Note 14 - Commitments and Contingencies (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-14-commitments-and-contingencies-tables Note 14 - Commitments and Contingencies (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-14-commitments-and-contingencies 43 false false R44.htm 995586 - Disclosure - Note 15 - Other Comprehensive (Loss) Income (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-15-other-comprehensive-loss-income-tables Note 15 - Other Comprehensive (Loss) Income (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-15-other-comprehensive-loss-income 44 false false R45.htm 995587 - Disclosure - Note 16 - Regulatory Matters (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-16-regulatory-matters-tables Note 16 - Regulatory Matters (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-16-regulatory-matters 45 false false R46.htm 995588 - Disclosure - Note 17 - Parent Company Financial Statements (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-17-parent-company-financial-statements-tables Note 17 - Parent Company Financial Statements (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-17-parent-company-financial-statements 46 false false R47.htm 995589 - Disclosure - Note 18 - Earnings Per Share ("EPS") (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-18-earnings-per-share-eps-tables Note 18 - Earnings Per Share ("EPS") (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-18-earnings-per-share-eps 47 false false R48.htm 995590 - Disclosure - Note 19 - Derivative and Hedging Activities (Tables) Sheet http://investor.everettbank.com/20251231/role/statement-note-19-derivative-and-hedging-activities-tables Note 19 - Derivative and Hedging Activities (Tables) Tables http://investor.everettbank.com/20251231/role/statement-note-19-derivative-and-hedging-activities 48 false false R49.htm 995591 - Disclosure - Note 1 - Nature of Operations (Details Textual) Sheet http://investor.everettbank.com/20251231/role/statement-note-1-nature-of-operations-details-textual Note 1 - Nature of Operations (Details Textual) Details http://investor.everettbank.com/20251231/role/statement-note-1-nature-of-operations- 49 false false R50.htm 995592 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Details Textual) Sheet http://investor.everettbank.com/20251231/role/statement-note-2-summary-of-significant-accounting-policies-details-textual Note 2 - Summary of Significant Accounting Policies (Details Textual) Details 50 false false R51.htm 995593 - Disclosure - Note 3 - Investments in Securities (Details Textual) Sheet http://investor.everettbank.com/20251231/role/statement-note-3-investments-in-securities-details-textual Note 3 - Investments in Securities (Details Textual) Details http://investor.everettbank.com/20251231/role/statement-note-3-investments-in-securities-tables 51 false false R52.htm 995594 - Disclosure - Note 3 - Investments in Securities - Schedule of Available-for-Sale Securities (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-3-investments-in-securities-schedule-of-availableforsale-securities-details Note 3 - Investments in Securities - Schedule of Available-for-Sale Securities (Details) Details 52 false false R53.htm 995595 - Disclosure - Note 3 - Investments in Securities - Schedule of Available-for-Sale Securities in Unrealized Loss Position (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-3-investments-in-securities-schedule-of-availableforsale-securities-in-unrealized-loss-position-details Note 3 - Investments in Securities - Schedule of Available-for-Sale Securities in Unrealized Loss Position (Details) Details 53 false false R54.htm 995596 - Disclosure - Note 3 - Investments in Securities - Schedule of Held-to-Maturity Securities (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-3-investments-in-securities-schedule-of-heldtomaturity-securities-details Note 3 - Investments in Securities - Schedule of Held-to-Maturity Securities (Details) Details 54 false false R55.htm 995597 - Disclosure - Note 3 - Investments in Securities - Schedule of Investments Classified by Contractual Maturity Date (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-3-investments-in-securities-schedule-of-investments-classified-by-contractual-maturity-date-details Note 3 - Investments in Securities - Schedule of Investments Classified by Contractual Maturity Date (Details) Details 55 false false R56.htm 995598 - Disclosure - Note 4 - Loans, Allowance for Credit Losses and Credit Quality (Details Textual) Sheet http://investor.everettbank.com/20251231/role/statement-note-4-loans-allowance-for-credit-losses-and-credit-quality-details-textual Note 4 - Loans, Allowance for Credit Losses and Credit Quality (Details Textual) Details http://investor.everettbank.com/20251231/role/statement-note-4-loans-allowance-for-credit-losses-and-credit-quality-tables 56 false false R57.htm 995599 - Disclosure - Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Loans (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-4-loans-allowance-for-credit-losses-and-credit-quality-schedule-of-loans-details Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Loans (Details) Details 57 false false R58.htm 995600 - Disclosure - Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Allowance for Credit Losses (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-4-loans-allowance-for-credit-losses-and-credit-quality-schedule-of-allowance-for-credit-losses-details Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Allowance for Credit Losses (Details) Details 58 false false R59.htm 995601 - Disclosure - Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Loans Age Analysis (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-4-loans-allowance-for-credit-losses-and-credit-quality-schedule-of-loans-age-analysis-details Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Loans Age Analysis (Details) Details 59 false false R60.htm 995602 - Disclosure - Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Nonaccrual Loans (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-4-loans-allowance-for-credit-losses-and-credit-quality-schedule-of-nonaccrual-loans-details Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Nonaccrual Loans (Details) Details 60 false false R61.htm 995603 - Disclosure - Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Credit Quality Indicators (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-4-loans-allowance-for-credit-losses-and-credit-quality-schedule-of-credit-quality-indicators-details Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Schedule of Credit Quality Indicators (Details) Details 61 false false R62.htm 995604 - Disclosure - Note 5 - Premises and Equipment (Details Textual) Sheet http://investor.everettbank.com/20251231/role/statement-note-5-premises-and-equipment-details-textual Note 5 - Premises and Equipment (Details Textual) Details http://investor.everettbank.com/20251231/role/statement-note-5-premises-and-equipment-tables 62 false false R63.htm 995605 - Disclosure - Note 5 - Premises and Equipment - Schedule of Premises and Equipment (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-5-premises-and-equipment-schedule-of-premises-and-equipment-details Note 5 - Premises and Equipment - Schedule of Premises and Equipment (Details) Details 63 false false R64.htm 995606 - Disclosure - Note 6 - Leases (Details Textual) Sheet http://investor.everettbank.com/20251231/role/statement-note-6-leases-details-textual Note 6 - Leases (Details Textual) Details http://investor.everettbank.com/20251231/role/statement-note-6-leases-tables 64 false false R65.htm 995607 - Disclosure - Note 6 - Leases - Operating Leases (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-6-leases-operating-leases-details Note 6 - Leases - Operating Leases (Details) Details 65 false false R66.htm 995608 - Disclosure - Note 6 - Leases - Operating Leases (Details) (Parentheticals) Sheet http://investor.everettbank.com/20251231/role/statement-note-6-leases-operating-leases-details-parentheticals Note 6 - Leases - Operating Leases (Details) (Parentheticals) Details 66 false false R67.htm 995609 - Disclosure - Note 6 - Leases - Operating Lease Payments (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-6-leases-operating-lease-payments-details Note 6 - Leases - Operating Lease Payments (Details) Details 67 false false R68.htm 995610 - Disclosure - Note 7 - Deposits (Details Textual) Sheet http://investor.everettbank.com/20251231/role/statement-note-7-deposits-details-textual Note 7 - Deposits (Details Textual) Details http://investor.everettbank.com/20251231/role/statement-note-7-deposits-tables 68 false false R69.htm 995611 - Disclosure - Note 7 - Deposits - Schedule of Deposits (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-7-deposits-schedule-of-deposits-details Note 7 - Deposits - Schedule of Deposits (Details) Details 69 false false R70.htm 995612 - Disclosure - Note 8 - Borrowings (Details Textual) Sheet http://investor.everettbank.com/20251231/role/statement-note-8-borrowings-details-textual Note 8 - Borrowings (Details Textual) Details http://investor.everettbank.com/20251231/role/statement-note-8-borrowings-tables 70 false false R71.htm 995613 - Disclosure - Note 8 - Borrowings - Maturity of Borrowings (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-8-borrowings-maturity-of-borrowings-details Note 8 - Borrowings - Maturity of Borrowings (Details) Details 71 false false R72.htm 995614 - Disclosure - Note 9 - Employee Benefit Plans (Details Textual) Sheet http://investor.everettbank.com/20251231/role/statement-note-9-employee-benefit-plans-details-textual Note 9 - Employee Benefit Plans (Details Textual) Details http://investor.everettbank.com/20251231/role/statement-note-9-employee-benefit-plans-tables 72 false false R73.htm 995615 - Disclosure - Note 9 - Employee Benefit Plans - Retirement Plan Expenses (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-9-employee-benefit-plans-retirement-plan-expenses-details Note 9 - Employee Benefit Plans - Retirement Plan Expenses (Details) Details 73 false false R74.htm 995616 - Disclosure - Note 9 - Employee Benefit Plans - Schedule Of Amounts Recognized In Accumulated Other Comprehensive Income Loss (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-9-employee-benefit-plans-schedule-of-amounts-recognized-in-accumulated-other-comprehensive-income-loss-details Note 9 - Employee Benefit Plans - Schedule Of Amounts Recognized In Accumulated Other Comprehensive Income Loss (Details) Details 74 false false R75.htm 995617 - Disclosure - Note 9 - Employee Benefit Plans - Weighted-average Assumptions Used (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-9-employee-benefit-plans-weightedaverage-assumptions-used-details Note 9 - Employee Benefit Plans - Weighted-average Assumptions Used (Details) Details 75 false false R76.htm 995618 - Disclosure - Note 9 - Employee Benefit Plans - Components of Benefits Plan Recognized in Other Comprehensive Income (Loss) (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-9-employee-benefit-plans-components-of-benefits-plan-recognized-in-other-comprehensive-income-loss-details Note 9 - Employee Benefit Plans - Components of Benefits Plan Recognized in Other Comprehensive Income (Loss) (Details) Details 76 false false R77.htm 995619 - Disclosure - Note 9 - Employee Benefit Plans - Future Benefit Payments (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-9-employee-benefit-plans-future-benefit-payments-details Note 9 - Employee Benefit Plans - Future Benefit Payments (Details) Details 77 false false R78.htm 995620 - Disclosure - Note 9 - Employee Benefit Plans - Schedule of Expenses for Employee Stock Ownership Plan (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-9-employee-benefit-plans-schedule-of-expenses-for-employee-stock-ownership-plan-details Note 9 - Employee Benefit Plans - Schedule of Expenses for Employee Stock Ownership Plan (Details) Details 78 false false R79.htm 995621 - Disclosure - Note 10 - Stock-based Compensation (Details Textual) Sheet http://investor.everettbank.com/20251231/role/statement-note-10-stockbased-compensation-details-textual Note 10 - Stock-based Compensation (Details Textual) Details http://investor.everettbank.com/20251231/role/statement-note-10-stockbased-compensation-tables 79 false false R80.htm 995622 - Disclosure - Note 10 - Stock-based Compensation - Schedule of Stock Options (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-10-stockbased-compensation-schedule-of-stock-options-details Note 10 - Stock-based Compensation - Schedule of Stock Options (Details) Details 80 false false R81.htm 995623 - Disclosure - Note 10 - Stock-based Compensation - Schedule of Restricted Stock Awards (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-10-stockbased-compensation-schedule-of-restricted-stock-awards-details Note 10 - Stock-based Compensation - Schedule of Restricted Stock Awards (Details) Details 81 false false R82.htm 995624 - Disclosure - Note 10 - Stock-based Compensation - Schedule of Compensation Expense and Income Tax Benefits (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-10-stockbased-compensation-schedule-of-compensation-expense-and-income-tax-benefits-details Note 10 - Stock-based Compensation - Schedule of Compensation Expense and Income Tax Benefits (Details) Details 82 false false R83.htm 995625 - Disclosure - Note 10 - Stock-based Compensation - Schedule of Compensation Cost Related to Non-vested Awards (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-10-stockbased-compensation-schedule-of-compensation-cost-related-to-nonvested-awards-details Note 10 - Stock-based Compensation - Schedule of Compensation Cost Related to Non-vested Awards (Details) Details 83 false false R84.htm 995626 - Disclosure - Note 11 - Income Taxes (Details Textual) Sheet http://investor.everettbank.com/20251231/role/statement-note-11-income-taxes-details-textual Note 11 - Income Taxes (Details Textual) Details http://investor.everettbank.com/20251231/role/statement-note-11-income-taxes-tables 84 false false R85.htm 995627 - Disclosure - Note 11 - Income Taxes - Income Tax Expense (Details) Sheet http://investor.everettbank.com/20251231/role/statement-note-11-income-taxes-income-tax-expense-details Note 11 - Income Taxes - Income Tax Expense (Details) Details 85 false false R86.htm 995628 - 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