0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONSOLIDATED STATEMENTS OF CONDITION link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONSOLIDATED STATEMENTS OF CONDITION (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Investment Securities link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Loans and Allowance for Credit Losses on Loans link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Bank Premises and Equipment link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Bank Owned Life Insurance link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Deposits link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Borrowings and Other Obligations link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Stockholders' Equity and Stock Plans link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Fair Value of Assets and Liabilities link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Benefit Plans link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Subordinated Notes link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Concentrations of Credit Risk link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Derivative Financial Instruments and Hedging Activities link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Regulatory Matters link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Financial Instruments with Off-Balance Sheet Risk link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Condensed Bank of Marin Bancorp Parent Only Financial Statements link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Restatement of Prior Period Financial Statements (Quarterly Information Unaudited) link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Investment Securities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Loans and Allowance for Credit Losses on Loans (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Bank Premises and Equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Deposits (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Borrowings and Other Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Stockholders' Equity and Stock Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Fair Value of Assets and Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Commitments and Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Derivative Financial Instruments and Hedging Activities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Regulatory Matters (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Financial Instruments with Off-Balance Sheet Risk (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Condensed Bank of Marin Bancorp Parent Only Financial Statements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Restatement of Prior Period Financial Statements (Quarterly Information Unaudited) (Tables) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Summary of Significant Accounting Policies - Nature of Operations and Segment Reporting (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Summary of Significant Accounting Policies - Schedule of Segment Revenue, Profit or Loss, Significant Segment Expenses and Other Segment Items (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Summary of Significant Accounting Policies - Financing Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Summary of Significant Accounting Policies - Transfer of Financial Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Summary of Significant Accounting Policies - Premises and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Summary of Significant Accounting Policies - Goodwill and Other Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Summary of Significant Accounting Policies - Future Amortization Expense of Core Deposits (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Summary of Significant Accounting Policies - Other Real Estate Owned (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Summary of Significant Accounting Policies - Investments in Low Income Housing Tax Credit Funds (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Summary of Significant Accounting Policies - Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Summary of Significant Accounting Policies - Advertising Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Investment Securities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Investment Securities - Schedule of Held-to-Maturity Amortized Cost and Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Investment Securities - Schedule of Bond Ratings For Held-to-Maturity Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Investment Securities - Schedule of Available-for-Sale Securities Amortized Cost and Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Investment Securities - Schedule of Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Investment Securities - Schedule of Sale of Investment Securities and Gross Gains and Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Investment Securities - Schedule of Pledged and Transferred Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Investment Securities - Schedule of Unrealized Loss Positions (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Investment Securities - Non-Marketable Securities Included in Other Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Loans and Allowance for Credit Losses on Loans - Schedule of Loans by Class (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Loans and Allowance for Credit Losses on Loans - Concentrations of Credit Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Loans and Allowance for Credit Losses on Loans - Schedule of Loans by Risk Grade and Origination Year (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Loans and Allowance for Credit Losses on Loans - Loans Outstanding and Aging Analysis (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Loans and Allowance for Credit Losses on Loans - Schedule of Collateral-Dependent Non-Accrual Loans (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Loans and Allowance for Credit Losses on Loans - Schedule of Amortized Cost of Loans Modified (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Loans and Allowance for Credit Losses on Loans - Schedule of Financial Effect of Loan Modifications (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Loans and Allowance for Credit Losses on Loans - Schedule of Amortized Cost and Payment Status of Loans (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Loans and Allowance for Credit Losses on Loans - Schedule of Allocation of the Allowance for Credit Losses on Loans (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Loans and Allowance for Credit Losses on Loans - Allocation of the Allowance for Credit Losses on Loans (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Loans and Allowance for Credit Losses on Loans - Schedule of Allowance for Credit Losses on Loans (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Loans and Allowance for Credit Losses on Loans - Pledged Loans Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Loans and Allowance for Credit Losses on Loans - Schedule of Related Party Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Loans and Allowance for Credit Losses on Loans - Related Party Loans (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Bank Premises and Equipment - Schedule of Bank Premises and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Bank Premises and Equipment - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Bank Owned Life Insurance (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Deposits - Schedule of Stratification of Time Deposits (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Deposits - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - Deposits - Schedule of Time Deposit Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - Borrowings and Other Obligations - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - Borrowings and Other Obligations - Other Obligations Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - Borrowings and Other Obligations - Schedule of Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - Stockholders' Equity and Stock Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - Stockholders' Equity and Stock Plans - Schedule of Cashless Exercise Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - Stockholders' Equity and Stock Plans - Schedule of Options Outstanding Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - Stockholders' Equity and Stock Plans - Schedule of Options Outstanding by Price Range (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - Stockholders' Equity and Stock Plans - Schedule of Non-vested Awards Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955575 - Disclosure - Stockholders' Equity and Stock Plans - Schedule of Valuation Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955576 - Disclosure - Stockholders' Equity and Stock Plans - Schedule of Dividends (Details) link:presentationLink link:calculationLink link:definitionLink 9955577 - Disclosure - Stockholders' Equity and Stock Plans - Dividends (Details) link:presentationLink link:calculationLink link:definitionLink 9955578 - Disclosure - Stockholders' Equity and Stock Plans - Share Repurchase Program Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955579 - Disclosure - Fair Value of Assets and Liabilities - Schedule of Recorded on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955580 - Disclosure - Fair Value of Assets and Liabilities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955581 - Disclosure - Fair Value of Assets and Liabilities - Schedule of Fair Value of Financial Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955582 - Disclosure - Benefit Plans - Deferred Compensation Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955583 - Disclosure - Benefit Plans - Defined Contribution Plan and Employee Stock Ownership Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955584 - Disclosure - Benefit Plans - Supplemental Executive Retirement Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955585 - Disclosure - Income Taxes - Schedule of Pretax Income from Continuing Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955586 - Disclosure - Income Taxes - Schedule of Components of Income Tax Provision (Details) link:presentationLink link:calculationLink link:definitionLink 9955587 - Disclosure - Income Taxes - Schedule of Effective Income Tax Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 9955588 - Disclosure - Income Taxes - Schedule of Deferred Tax Asset and Liability (Details) link:presentationLink link:calculationLink link:definitionLink 9955589 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955590 - Disclosure - Income Taxes - Schedule of Income Taxes Paid (Net of Refunds) (Details) link:presentationLink link:calculationLink link:definitionLink 9955591 - Disclosure - Income Taxes - Schedule of Income Taxes Paid (Net of Refunds) Exceeding Five Percent (Details) link:presentationLink link:calculationLink link:definitionLink 9955592 - Disclosure - Commitments and Contingencies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955593 - Disclosure - Commitments and Contingencies - Schedule of Operating and Finance Lease Right-of-Use Assets and Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955594 - Disclosure - Commitments and Contingencies - Schedule of Noncash Investing and Financing Activities (Details) link:presentationLink link:calculationLink link:definitionLink 9955595 - Disclosure - Commitments and Contingencies - Schedule of Lease Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955596 - Disclosure - Commitments and Contingencies - Schedule of Lease Liability Maturity Schedule (Details) link:presentationLink link:calculationLink link:definitionLink 9955596 - Disclosure - Commitments and Contingencies - Schedule of Lease Liability Maturity Schedule (Details) link:presentationLink link:calculationLink link:definitionLink 9955597 - Disclosure - Subordinated Notes (Details) link:presentationLink link:calculationLink link:definitionLink 9955598 - Disclosure - Concentrations of Credit Risk (Details) link:presentationLink link:calculationLink link:definitionLink 9955599 - Disclosure - Derivative Financial Instruments and Hedging Activities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955600 - Disclosure - Derivative Financial Instruments and Hedging Activities - Schedule of Information on Derivatives (Details) link:presentationLink link:calculationLink link:definitionLink 9955601 - Disclosure - Derivative Financial Instruments and Hedging Activities - Schedule of Interest Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955602 - Disclosure - Derivative Financial Instruments and Hedging Activities - Schedule of Offsetting of Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955603 - Disclosure - Derivative Financial Instruments and Hedging Activities - Schedule of Offsetting of Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955604 - Disclosure - Regulatory Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955605 - Disclosure - Financial Instruments with Off-Balance Sheet Risk - Schedule of Contractual Amount, Off-Balance Sheet Risks (Details) link:presentationLink link:calculationLink link:definitionLink 9955606 - Disclosure - Financial Instruments with Off-Balance Sheet Risk - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955607 - Disclosure - Condensed Bank of Marin Bancorp Parent Only Financial Statements - Condensed Uncosolidanted Statements of Condition (Details) link:presentationLink link:calculationLink link:definitionLink 9955608 - Disclosure - Condensed Bank of Marin Bancorp Parent Only Financial Statements - Condensed Unconsolidated Statements of (Loss) Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955609 - Disclosure - Condensed Bank of Marin Bancorp Parent Only Financial Statements - Condensed Unconsolidated Statements of Cash Flows (Details) link:presentationLink link:calculationLink link:definitionLink 9955610 - Disclosure - Restatement of Prior Period Financial Statements (Quarterly Information Unaudited) - Corrected Consolidated Statement of Condition (Details) link:presentationLink link:calculationLink link:definitionLink 9955611 - Disclosure - Restatement of Prior Period Financial Statements (Quarterly Information Unaudited) - Corrected Consolidated Statement of Comprehensive (Loss) Income (Details) link:presentationLink link:calculationLink link:definitionLink