3.25.1 html 257 380 1 false 98 0 false 8 false false R1.htm 00090 - Document - Document and Entity Information Sheet http://sachemcapital.com/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 00100 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS Sheet http://sachemcapital.com/role/StatementCondensedConsolidatedBalanceSheets CONDENSED CONSOLIDATED BALANCE SHEETS Statements 2 false false R3.htm 00105 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) Sheet http://sachemcapital.com/role/StatementCondensedConsolidatedBalanceSheetsParenthetical CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) Statements 3 false false R4.htm 00200 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS Sheet http://sachemcapital.com/role/StatementCondensedConsolidatedStatementsOfOperations CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS Statements 4 false false R5.htm 00300 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME Sheet http://sachemcapital.com/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossIncome CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME Statements 5 false false R6.htm 00400 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY Sheet http://sachemcapital.com/role/StatementCondensedConsolidatedStatementsOfChangesInShareholdersEquity CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY Statements 6 false false R7.htm 00500 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://sachemcapital.com/role/StatementCondensedConsolidatedStatementsOfCashFlows CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Statements 7 false false R8.htm 10101 - Disclosure - The Company Sheet http://sachemcapital.com/role/DisclosureCompany The Company Notes 8 false false R9.htm 10201 - Disclosure - Significant Accounting Policies Sheet http://sachemcapital.com/role/DisclosureSignificantAccountingPolicies Significant Accounting Policies Notes 9 false false R10.htm 10301 - Disclosure - Fair Value Measurement Sheet http://sachemcapital.com/role/DisclosureFairValueMeasurement Fair Value Measurement Notes 10 false false R11.htm 10401 - Disclosure - Loans and Allowance for Credit Losses Sheet http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLosses Loans and Allowance for Credit Losses Notes 11 false false R12.htm 10501 - Disclosure - Investment in Developmental Real Estate, net Sheet http://sachemcapital.com/role/DisclosureInvestmentInDevelopmentalRealEstateNet Investment in Developmental Real Estate, net Notes 12 false false R13.htm 10601 - Disclosure - Real Estate Owned ("REO") Sheet http://sachemcapital.com/role/DisclosureRealEstateOwnedreo Real Estate Owned ("REO") Notes 13 false false R14.htm 10701 - Disclosure - Property and Equipment, net Sheet http://sachemcapital.com/role/DisclosurePropertyAndEquipmentNet Property and Equipment, net Notes 14 false false R15.htm 10801 - Disclosure - Other Assets Sheet http://sachemcapital.com/role/DisclosureOtherAssets Other Assets Notes 15 false false R16.htm 10901 - Disclosure - Lines of Credit, Mortgage Payable and Churchill Facility Sheet http://sachemcapital.com/role/DisclosureLinesOfCreditMortgagePayableAndChurchillFacility Lines of Credit, Mortgage Payable and Churchill Facility Notes 16 false false R17.htm 11001 - Disclosure - Unsecured Notes Payable Notes http://sachemcapital.com/role/DisclosureUnsecuredNotesPayable Unsecured Notes Payable Notes 17 false false R18.htm 11101 - Disclosure - Accounts Payable and Accrued Liabilities Sheet http://sachemcapital.com/role/DisclosureAccountsPayableAndAccruedLiabilities Accounts Payable and Accrued Liabilities Notes 18 false false R19.htm 11201 - Disclosure - Fee Income from Loans Sheet http://sachemcapital.com/role/DisclosureFeeIncomeFromLoans Fee Income from Loans Notes 19 false false R20.htm 11301 - Disclosure - Commitments and Contingencies Sheet http://sachemcapital.com/role/DisclosureCommitmentsAndContingencies Commitments and Contingencies Notes 20 false false R21.htm 11401 - Disclosure - Related Party Transactions Sheet http://sachemcapital.com/role/DisclosureRelatedPartyTransactions Related Party Transactions Notes 21 false false R22.htm 11501 - Disclosure - Stock-Based Compensation and Employee Benefits Sheet http://sachemcapital.com/role/DisclosureStockBasedCompensationAndEmployeeBenefits Stock-Based Compensation and Employee Benefits Notes 22 false false R23.htm 11601 - Disclosure - Equity Sheet http://sachemcapital.com/role/DisclosureEquity Equity Notes 23 false false R24.htm 11701 - Disclosure - Earnings (Losses) Per Share Sheet http://sachemcapital.com/role/DisclosureEarningsLossesPerShare Earnings (Losses) Per Share Notes 24 false false R25.htm 11801 - Disclosure - Limited Liability Company ("LLC") Investments Sheet http://sachemcapital.com/role/DisclosureLimitedLiabilityCompanyllcInvestments Limited Liability Company ("LLC") Investments Notes 25 false false R26.htm 11901 - Disclosure - Income Taxes Sheet http://sachemcapital.com/role/DisclosureIncomeTaxes Income Taxes Notes 26 false false R27.htm 12001 - Disclosure - Subsequent Events Sheet http://sachemcapital.com/role/DisclosureSubsequentEvents Subsequent Events Notes 27 false false R28.htm 20202 - Disclosure - Significant Accounting Policies (Policies) Sheet http://sachemcapital.com/role/DisclosureSignificantAccountingPoliciesPolicies Significant Accounting Policies (Policies) Policies http://sachemcapital.com/role/DisclosureSignificantAccountingPolicies 28 false false R29.htm 30303 - Disclosure - Fair Value Measurement (Tables) Sheet http://sachemcapital.com/role/DisclosureFairValueMeasurementTables Fair Value Measurement (Tables) Tables http://sachemcapital.com/role/DisclosureFairValueMeasurement 29 false false R30.htm 30403 - Disclosure - Loans and Allowance for Credit Losses (Tables) Sheet http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLossesTables Loans and Allowance for Credit Losses (Tables) Tables http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLosses 30 false false R31.htm 30503 - Disclosure - Investment in Developmental Real Estate, net (Tables) Sheet http://sachemcapital.com/role/DisclosureInvestmentInDevelopmentalRealEstateNetTables Investment in Developmental Real Estate, net (Tables) Tables http://sachemcapital.com/role/DisclosureInvestmentInDevelopmentalRealEstateNet 31 false false R32.htm 30603 - Disclosure - Real Estate Owned ("REO") (Tables) Sheet http://sachemcapital.com/role/DisclosureRealEstateOwnedreoTables Real Estate Owned ("REO") (Tables) Tables http://sachemcapital.com/role/DisclosureRealEstateOwnedreo 32 false false R33.htm 30703 - Disclosure - Property and Equipment, net (Tables) Sheet http://sachemcapital.com/role/DisclosurePropertyAndEquipmentNetTables Property and Equipment, net (Tables) Tables http://sachemcapital.com/role/DisclosurePropertyAndEquipmentNet 33 false false R34.htm 30803 - Disclosure - Other Assets (Tables) Sheet http://sachemcapital.com/role/DisclosureOtherAssetsTables Other Assets (Tables) Tables http://sachemcapital.com/role/DisclosureOtherAssets 34 false false R35.htm 30903 - Disclosure - Line of Credit, Mortgage Payable, and Churchill Facility (Tables) Sheet http://sachemcapital.com/role/DisclosureLineOfCreditMortgagePayableAndChurchillFacilityTables Line of Credit, Mortgage Payable, and Churchill Facility (Tables) Tables 35 false false R36.htm 31003 - Disclosure - Unsecured Notes Payable (Tables) Notes http://sachemcapital.com/role/DisclosureUnsecuredNotesPayableTables Unsecured Notes Payable (Tables) Tables http://sachemcapital.com/role/DisclosureUnsecuredNotesPayable 36 false false R37.htm 31103 - Disclosure - Accounts Payable and Accrued Liabilities (Tables) Sheet http://sachemcapital.com/role/DisclosureAccountsPayableAndAccruedLiabilitiesTables Accounts Payable and Accrued Liabilities (Tables) Tables http://sachemcapital.com/role/DisclosureAccountsPayableAndAccruedLiabilities 37 false false R38.htm 31203 - Disclosure - Fee Income from Loans (Tables) Sheet http://sachemcapital.com/role/DisclosureFeeIncomeFromLoansTables Fee Income from Loans (Tables) Tables http://sachemcapital.com/role/DisclosureFeeIncomeFromLoans 38 false false R39.htm 31803 - Disclosure - Limited Liability Company ("LLC") Investments (Tables) Sheet http://sachemcapital.com/role/DisclosureLimitedLiabilityCompanyllcInvestmentsTables Limited Liability Company ("LLC") Investments (Tables) Tables http://sachemcapital.com/role/DisclosureLimitedLiabilityCompanyllcInvestments 39 false false R40.htm 40101 - Disclosure - The Company (Details) Sheet http://sachemcapital.com/role/DisclosureCompanyDetails The Company (Details) Details http://sachemcapital.com/role/DisclosureCompany 40 false false R41.htm 40201 - Disclosure - Significant Accounting Policies - Variable Interest Entity (Details) Sheet http://sachemcapital.com/role/DisclosureSignificantAccountingPoliciesVariableInterestEntityDetails Significant Accounting Policies - Variable Interest Entity (Details) Details 41 false false R42.htm 40301 - Disclosure - Fair Value Measurement (Details) Sheet http://sachemcapital.com/role/DisclosureFairValueMeasurementDetails Fair Value Measurement (Details) Details http://sachemcapital.com/role/DisclosureFairValueMeasurementTables 42 false false R43.htm 40302 - Disclosure - Fair Value Measurement - Company's available-for-sale (AFS) securities and other comprehensive income (OCI) (Details) Sheet http://sachemcapital.com/role/DisclosureFairValueMeasurementCompanySAvailableForSaleAfsSecuritiesAndOtherComprehensiveIncomeOciDetails Fair Value Measurement - Company's available-for-sale (AFS) securities and other comprehensive income (OCI) (Details) Details 43 false false R44.htm 40401 - Disclosure - Loans and Allowance for Credit Losses - Company's loan portfolio by the past due (Details) Sheet http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLossesCompanySLoanPortfolioByPastDueDetails Loans and Allowance for Credit Losses - Company's loan portfolio by the past due (Details) Details 44 false false R45.htm 40402 - Disclosure - Loans and Allowance for Credit Losses - CECL allowance (Details) Sheet http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLossesCeclAllowanceDetails Loans and Allowance for Credit Losses - CECL allowance (Details) Details 45 false false R46.htm 40403 - Disclosure - Loans and Allowance for Credit Losses - CECL Allowance by Geographical Location (Details) Sheet http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLossesCeclAllowanceByGeographicalLocationDetails Loans and Allowance for Credit Losses - CECL Allowance by Geographical Location (Details) Details 46 false false R47.htm 40404 - Disclosure - Loans and Allowance for Credit Losses - CECL Allowance by charge-offs (Details) Sheet http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLossesCeclAllowanceByChargeOffsDetails Loans and Allowance for Credit Losses - CECL Allowance by charge-offs (Details) Details 47 false false R48.htm 40405 - Disclosure - Loans and Allowance for Credit Losses - CECL Allowance by CECL Allowances by loan portfolio geographical location (Details) Sheet http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLossesCeclAllowanceByCeclAllowancesByLoanPortfolioGeographicalLocationDetails Loans and Allowance for Credit Losses - CECL Allowance by CECL Allowances by loan portfolio geographical location (Details) Details 48 false false R49.htm 40406 - Disclosure - Loans and Allowance for Credit Losses - Internal credit quality indicators (Details) Sheet http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLossesInternalCreditQualityIndicatorsDetails Loans and Allowance for Credit Losses - Internal credit quality indicators (Details) Details 49 false false R50.htm 40407 - Disclosure - Loans and Allowance for Credit Losses - Loan modifications made to borrowers experiencing financial difficulty (Details) Sheet http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLossesLoanModificationsMadeToBorrowersExperiencingFinancialDifficultyDetails Loans and Allowance for Credit Losses - Loan modifications made to borrowers experiencing financial difficulty (Details) Details 50 false false R51.htm 40408 - Disclosure - Loans and Allowance for Credit Losses - Performance of loans that have been modified in the last 12 months to borrowers experiencing financial difficulty (Details) Sheet http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLossesPerformanceOfLoansThatHaveBeenModifiedInLast12MonthsToBorrowersExperiencingFinancialDifficultyDetails Loans and Allowance for Credit Losses - Performance of loans that have been modified in the last 12 months to borrowers experiencing financial difficulty (Details) Details 51 false false R52.htm 40409 - Disclosure - Loans and Allowance for Credit Losses - Additional Information (Details) Sheet http://sachemcapital.com/role/DisclosureLoansAndAllowanceForCreditLossesAdditionalInformationDetails Loans and Allowance for Credit Losses - Additional Information (Details) Details 52 false false R53.htm 40501 - Disclosure - Investment in Developmental Real Estate, net (Details) Sheet http://sachemcapital.com/role/DisclosureInvestmentInDevelopmentalRealEstateNetDetails Investment in Developmental Real Estate, net (Details) Details http://sachemcapital.com/role/DisclosureInvestmentInDevelopmentalRealEstateNetTables 53 false false R54.htm 40502 - Disclosure - Investment in Developmental Real Estate, net - Future minimum rents under non-cancelable operating leases (Details) Sheet http://sachemcapital.com/role/DisclosureInvestmentInDevelopmentalRealEstateNetFutureMinimumRentsUnderNonCancelableOperatingLeasesDetails Investment in Developmental Real Estate, net - Future minimum rents under non-cancelable operating leases (Details) Details 54 false false R55.htm 40503 - Disclosure - Investment in Developmental Real Estate, net - Estimated annual amortization of acquired below market lease intangible (Details) Sheet http://sachemcapital.com/role/DisclosureInvestmentInDevelopmentalRealEstateNetEstimatedAnnualAmortizationOfAcquiredBelowMarketLeaseIntangibleDetails Investment in Developmental Real Estate, net - Estimated annual amortization of acquired below market lease intangible (Details) Details 55 false false R56.htm 40504 - Disclosure - Investment in Developmental Real Estate, net - Estimated annual amortization of acquired in-place lease intangible (Details) Sheet http://sachemcapital.com/role/DisclosureInvestmentInDevelopmentalRealEstateNetEstimatedAnnualAmortizationOfAcquiredInPlaceLeaseIntangibleDetails Investment in Developmental Real Estate, net - Estimated annual amortization of acquired in-place lease intangible (Details) Details 56 false false R57.htm 40505 - Disclosure - Investment in Developmental Real Estate, net - Estimated annual amortization of deferred leasing costs (Details) Sheet http://sachemcapital.com/role/DisclosureInvestmentInDevelopmentalRealEstateNetEstimatedAnnualAmortizationOfDeferredLeasingCostsDetails Investment in Developmental Real Estate, net - Estimated annual amortization of deferred leasing costs (Details) Details 57 false false R58.htm 40601 - Disclosure - Real Estate Owned ("REO") (Details) Sheet http://sachemcapital.com/role/DisclosureRealEstateOwnedreoDetails Real Estate Owned ("REO") (Details) Details http://sachemcapital.com/role/DisclosureRealEstateOwnedreoTables 58 false false R59.htm 40602 - Disclosure - Real Estate Owned ("REO") - Activity of the Company's real estate owned (Details) Sheet http://sachemcapital.com/role/DisclosureRealEstateOwnedreoActivityOfCompanySRealEstateOwnedDetails Real Estate Owned ("REO") - Activity of the Company's real estate owned (Details) Details http://sachemcapital.com/role/DisclosureRealEstateOwnedreoTables 59 false false R60.htm 40603 - Disclosure - Real Estate Owned ("REO") - Rental payments due from real estate (Details) Sheet http://sachemcapital.com/role/DisclosureRealEstateOwnedreoRentalPaymentsDueFromRealEstateDetails Real Estate Owned ("REO") - Rental payments due from real estate (Details) Details http://sachemcapital.com/role/DisclosureRealEstateOwnedreoTables 60 false false R61.htm 40701 - Disclosure - Property and Equipment (Details) Sheet http://sachemcapital.com/role/DisclosurePropertyAndEquipmentDetails Property and Equipment (Details) Details http://sachemcapital.com/role/DisclosurePropertyAndEquipmentNetTables 61 false false R62.htm 40801 - Disclosure - Other Assets (Details) Sheet http://sachemcapital.com/role/DisclosureOtherAssetsDetails Other Assets (Details) Details http://sachemcapital.com/role/DisclosureOtherAssetsTables 62 false false R63.htm 40901 - Disclosure - Lines of Credit, Mortgage Payable and Churchill Facility (Details) Sheet http://sachemcapital.com/role/DisclosureLinesOfCreditMortgagePayableAndChurchillFacilityDetails Lines of Credit, Mortgage Payable and Churchill Facility (Details) Details http://sachemcapital.com/role/DisclosureLinesOfCreditMortgagePayableAndChurchillFacility 63 false false R64.htm 40902 - Disclosure - Lines of Credit, Mortgage Payable and Churchill Facility - Schedule of proceeds received and loans held for investment pledged as collateral under the Churchill Facility agreement (Details) Sheet http://sachemcapital.com/role/DisclosureLinesOfCreditMortgagePayableAndChurchillFacilityScheduleOfProceedsReceivedAndLoansHeldForInvestmentPledgedAsCollateralUnderChurchillFacilityAgreementDetails Lines of Credit, Mortgage Payable and Churchill Facility - Schedule of proceeds received and loans held for investment pledged as collateral under the Churchill Facility agreement (Details) Details 64 false false R65.htm 40903 - Disclosure - Lines of Credit, Mortgage Payable and Churchill Facility - Loans held for investment sold under the repurchase agreement (Details) Sheet http://sachemcapital.com/role/DisclosureLinesOfCreditMortgagePayableAndChurchillFacilityLoansHeldForInvestmentSoldUnderRepurchaseAgreementDetails Lines of Credit, Mortgage Payable and Churchill Facility - Loans held for investment sold under the repurchase agreement (Details) Details 65 false false R66.htm 41001 - Disclosure - Unsecured Notes Payable (Details) Notes http://sachemcapital.com/role/DisclosureUnsecuredNotesPayableDetails Unsecured Notes Payable (Details) Details http://sachemcapital.com/role/DisclosureUnsecuredNotesPayableTables 66 false false R67.htm 41002 - Disclosure - Unsecured Notes Payable - Future principal payments (Details) Notes http://sachemcapital.com/role/DisclosureUnsecuredNotesPayableFuturePrincipalPaymentsDetails Unsecured Notes Payable - Future principal payments (Details) Details 67 false false R68.htm 41003 - Disclosure - Unsecured Notes Payable - Estimated amortization of the deferred financing costs (Details) Notes http://sachemcapital.com/role/DisclosureUnsecuredNotesPayableEstimatedAmortizationOfDeferredFinancingCostsDetails Unsecured Notes Payable - Estimated amortization of the deferred financing costs (Details) Details 68 false false R69.htm 41101 - Disclosure - Accounts Payable and Accrued Liabilities (Details) Sheet http://sachemcapital.com/role/DisclosureAccountsPayableAndAccruedLiabilitiesDetails Accounts Payable and Accrued Liabilities (Details) Details http://sachemcapital.com/role/DisclosureAccountsPayableAndAccruedLiabilitiesTables 69 false false R70.htm 41201 - Disclosure - Fee Income from Loans (Details) Sheet http://sachemcapital.com/role/DisclosureFeeIncomeFromLoansDetails Fee Income from Loans (Details) Details http://sachemcapital.com/role/DisclosureFeeIncomeFromLoansTables 70 false false R71.htm 41301 - Disclosure - Commitments and Contingencies (Details) Sheet http://sachemcapital.com/role/DisclosureCommitmentsAndContingenciesDetails Commitments and Contingencies (Details) Details http://sachemcapital.com/role/DisclosureCommitmentsAndContingencies 71 false false R72.htm 41401 - Disclosure - Related Party Transactions (Details) Sheet http://sachemcapital.com/role/DisclosureRelatedPartyTransactionsDetails Related Party Transactions (Details) Details http://sachemcapital.com/role/DisclosureRelatedPartyTransactions 72 false false R73.htm 41501 - Disclosure - Stock-Based Compensation and Employee Benefits (Details) Sheet http://sachemcapital.com/role/DisclosureStockBasedCompensationAndEmployeeBenefitsDetails Stock-Based Compensation and Employee Benefits (Details) Details http://sachemcapital.com/role/DisclosureStockBasedCompensationAndEmployeeBenefits 73 false false R74.htm 41601 - Disclosure - Equity (Details) Sheet http://sachemcapital.com/role/DisclosureEquityDetails Equity (Details) Details http://sachemcapital.com/role/DisclosureEquity 74 false false R75.htm 41701 - Disclosure - Earnings (Losses) Per Share (Details) Sheet http://sachemcapital.com/role/DisclosureEarningsLossesPerShareDetails Earnings (Losses) Per Share (Details) Details http://sachemcapital.com/role/DisclosureEarningsLossesPerShare 75 false false R76.htm 41801 - Disclosure - Limited Liability Company ("LLC") Investments - Carrying value (Details) Sheet http://sachemcapital.com/role/DisclosureLimitedLiabilityCompanyllcInvestmentsCarryingValueDetails Limited Liability Company ("LLC") Investments - Carrying value (Details) Details http://sachemcapital.com/role/DisclosureLimitedLiabilityCompanyllcInvestmentsTables 76 false false R77.htm 41802 - Disclosure - Limited Liability Company ("LLC") Investments (Details) Sheet http://sachemcapital.com/role/DisclosureLimitedLiabilityCompanyllcInvestmentsDetails Limited Liability Company ("LLC") Investments (Details) Details http://sachemcapital.com/role/DisclosureLimitedLiabilityCompanyllcInvestmentsTables 77 false false R78.htm 41901 - Disclosure - Income Taxes (Details) Sheet http://sachemcapital.com/role/DisclosureIncomeTaxesDetails Income Taxes (Details) Details http://sachemcapital.com/role/DisclosureIncomeTaxes 78 false false All Reports Book All Reports sach-20250331.xsd sach-20250331_cal.xml sach-20250331_def.xml sach-20250331_lab.xml sach-20250331_pre.xml sach-20250331x10q.htm http://fasb.org/srt/2024 http://fasb.org/us-gaap/2024 http://xbrl.sec.gov/dei/2024 true true