Cover [Abstract] Document Information [Table] Document Information [Line Items] Document Type Document Type Document Quarterly Report Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Transition Report Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Current Fiscal Year End Date Current Fiscal Year End Date Entity Central Index Key Entity Central Index Key Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Statement of Financial Position [Abstract] Statement [Table] Statement [Line Items] Assets [Abstract] Property, Plant and Equipment, Net [Abstract] Real Estate: Land Land, at Cost Buildings and Improvements, Gross Building and Improvements, at Cost Property, Plant and Equipment, Gross Total Real Estate, at Cost Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less, Accumulated Depreciation Property, Plant and Equipment, Net Real Estate-Net Disposal Group, Including Discontinued Operation, Assets Assets Held for Sale Total Assets Held for Sale Mortgage Loans on Real Estate, Commercial and Consumer, Net Commercial Loans and Investments Total Commercial Loans and Investments Cash and Cash Equivalents, at Carrying Value Cash and Cash Equivalents Restricted Cash Restricted Cash Finite-Lived Intangible Assets, Net Intangible Lease Assets-Net Sub-total Intangible Lease Assets-Net Amount of Straight-Line Rent Adjustment. Straight-Line Rent Adjustment Straight-Line Rent Adjustment Prepaid Expense and Other Assets Other Assets Total Other Assets Assets Total Assets Liabilities and Equity [Abstract] Liabilities [Abstract] Liabilities: Amount of Accounts Payable, Accrued Expenses and Other Liabilities. Accounts Payable, Accrued Expenses and Other Liabilities Accounts Payable, Accrued Expenses, and Other Liabilities Total Accounts Payable, Accrued Expenses, and Other Liabilities Amount of Prepaid Rent and Deferred Revenue. Prepaid Rent and Deferred Revenue Prepaid Rent and Deferred Revenue Below Market Lease, Net Sub-total Intangible Lease Liabilities -Net Intangible Lease Liabilities-Net Long-term Debt. Long-Term Debt Total Long-Term Debt Long-term debt Liabilities Total Liabilities Commitments and Contingencies. Commitments and Contingencies-See Note 19 Equity, Attributable to Parent [Abstract] Equity: Preferred Stock, Value, Issued Preferred Stock, $0.01 par value per share, 100 million shares authorized, no shares issued and outstanding as of March 31, 2024 and December 31, 2023 Common Stock, Value, Issued Common Stock, $0.01 par value per share, 500 million shares authorized, 13,618,108 shares issued and outstanding as of March 31, 2024 and 13,659,207 shares issued and outstanding as of December 31, 2023 Additional Paid in Capital, Common Stock Additional Paid-in Capital Retained Earnings (Accumulated Deficit) Dividends in Excess of Net Income Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated Other Comprehensive Income Stockholders' Equity Attributable to Parent Stockholders' Equity Stockholders' Equity Attributable to Noncontrolling Interest Noncontrolling Interest Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balance Balance Total Equity Liabilities and Equity Total Liabilities and Equity Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Preferred Stock Preferred Stock, Par or Stated Value Per Share Preferred Stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred Stock, shares authorized Preferred Stock, Shares Issued Preferred Stock, shares issued Preferred Stock, Shares Outstanding Preferred Stock, shares outstanding Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Common Stock Common Stock, Par or Stated Value Per Share Common Stock, par value (in dollars per share) Common Stock, Shares Authorized Common Stock, shares authorized Common Stock, Shares, Issued Common Stock, shares issued Common Stock, Shares, Outstanding Common Stock, shares outstanding Income Statement [Abstract] Segments [Axis] Segments [Domain] Represents the income properties business segment of the entity. Income Properties Income Properties Revenues [Abstract] Revenues: Operating Lease, Lease Income Lease Income Total Lease Income Interest and Fee Income, Loans, Commercial, Real Estate Interest Income from Commercial Loans and Investments Revenue Not from Contract with Customer, Other Other Revenue Revenue Revenues Total Revenues Total Revenues Cost of Revenue [Abstract] Operating Expenses: Operating Income (Loss): Amount of Real Estate Expenses. Real Estate Expenses Real Estate Expenses General and Administrative Expense General and Administrative Expenses Impairment of Real Estate Provision for Impairment Impairment charge Depreciation, Depletion and Amortization Depreciation and Amortization Operating Expenses Total Operating Expenses Gain (Loss) on Disposition of Assets Gain on Disposition of Assets Gain on Disposition of Assets Gain (Loss) on Extinguishment of Debt, Cash and Noncash Gain (Loss) on Extinguishment of Debt, Cash and Noncash Gain (Loss) on Extinguishment of Debt Gain on Extinguishment of Debt Operating Income (Loss) Total Operating Income Net Income From Operations Investment and Other Income Investment and Other Income Investment and Other Income Interest Income (Expense), Nonoperating, Net Interest Expense Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net Income (Loss) Net Income (Loss) Net Income (Loss) Net Income (Loss) Attributable to Noncontrolling Interest Less: Net (Income) Loss Attributable to Noncontrolling Interest Net (Income) Loss Attributable to Noncontrolling Interest Net Income (Loss) Attributable to Alpine Income Property Trust, Inc. Earnings Per Share, Diluted [Abstract] Per Common Share Data: Earnings Per Share, Basic Basic (in dollars per share) Earnings Per Share, Diluted Diluted (in dollars per share) Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted Average Number of Common Shares: Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Common Shares Outstanding (in shares) Basic (in shares) Weighted Average Number of Shares Outstanding, Diluted Total Shares Applicable to Diluted Earnings Per Share (in shares) Diluted (in shares) CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Other Comprehensive Income (Loss), Net of Tax [Abstract] Other Comprehensive Income (Loss) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent Cash Flow Hedging Derivative - Interest Rate Swaps Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total Other Comprehensive Income (Loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Total Comprehensive Income Net Income (Loss) Attributable to Noncontrolling Interest [Abstract] Less: Comprehensive Income Attributable to Noncontrolling Interest Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Other Comprehensive Income Attributable to Noncontrolling Interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive Income Attributable to Noncontrolling Interest Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Income Attributable to Alpine Income Property Trust, Inc. Statement of Stockholders' Equity [Abstract] Equity Components [Axis] Equity Component [Domain] Stockholders' Equity Common Stock at Par Additional Paid-in Capital Dividends in Excess of Net Income Accumulated Other Comprehensive Income Noncontrolling Interest Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (decrease) in shareholders' equity Treasury Stock, Value, Acquired, Cost Method Stock Repurchase Stock Repurchase Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Stock Issuance to Directors Stock Issued During Period, Value, New Issues Proceeds from Issuance of Stock Stock Issuance, Net of Equity Issuance Costs Dividends, Common Stock, Cash Cash Dividend Other Comprehensive Income (Loss), Net of Tax Other Comprehensive Income ( Loss) Common Stock, Dividends, Per Share, Cash Paid Cash Dividends (in dollars per share) Statement of Cash Flows [Abstract] Net Cash Provided by (Used in) Operating Activities [Abstract] Cash Flow From Operating Activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to Reconcile Net Income (Loss) to Net Cash Provided by Operating Activities: Depreciation, Depletion and Amortization, Including Discontinued Operations Depreciation, Depletion and Amortization, Including Discontinued Operations Depreciation and Amortization Amortization of Below Market Lease Amortization of Intangible Lease Assets and Liabilities to Lease Income Accretion to Properties Revenue Amortization of Debt Issuance Costs Amortization of Deferred Financing Costs to Interest Expense Amortization of Deferred Financing Costs to Interest Expense Accretion of Commercial Loans and Investments Origination Fees Accretion of Commercial Loans and Investments Origination Fees Accretion of Commercial Loans and Investments Origination Fees Share-based Compensation Non-Cash Compensation Increase (Decrease) in Operating Assets [Abstract] Decrease (Increase) in Assets: Increase (Decrease) in Prepaid Rent Straight-Line Rent Adjustment Increase (Decrease) in Other Operating Assets Other Assets Increase (Decrease) in Operating Liabilities [Abstract] Increase (Decrease) in Liabilities: Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts Payable, Accrued Expenses, and Other Liabilities The amount of increase (decrease) in prepaid rent and deferred revenue. Increase (Decrease) in Prepaid Rent And Deferred Revenue Prepaid Rent and Deferred Revenue Net Cash Provided by (Used in) Operating Activities Net Cash Provided By Operating Activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash Flow From Investing Activities: Payments to Acquire Real Estate Acquisition of Real Estate, Including Capitalized Expenditures Proceeds from Sale of Productive Assets Proceeds from Disposition of Assets Payments to Acquire Loans Receivable Acquisition of Commercial Loans and Investments Borrowing Amount Proceeds from Collection of Loans Receivable Principal Payments Received on Commercial Loan Investments Net Cash Provided by (Used in) Investing Activities Net Cash Provided By (Used In) Investing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash Flow from Financing Activities: Proceeds from Issuance of Long-term Debt Proceeds from Long-Term Debt Repayments of Long-term Debt Payments on Long-Term Debt Payments of Loan Costs Cash Paid for Loan Fees Payments for Repurchase of Common Stock Repurchase of Common Stock Proceeds from Issuance of Common Stock, Net of Stock Issuance Costs Proceeds from Issuance of Common Stock, Net of Stock Issuance Costs Proceeds From Stock Issuance, Net Net proceeds Payments of Ordinary Dividends, Common Stock Dividends Paid Net Cash Provided by (Used in) Financing Activities Net Cash Used In Financing Activities Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Net Increase (Decrease) in Cash and Cash Equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and Cash Equivalents and Restricted Cash, End of Period Cash and Cash Equivalents and Restricted Cash, Beginning of Period Total Cash Supplemental Cash Flow Information [Abstract] Supplemental Disclosure of Cash Flow Information: Interest Paid, Net Cash Paid for Interest Total Interest Paid Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Supplemental Disclosure of Non-Cash Investing and Financing Activities: Unrealized Gain (Loss) on Cash Flow Hedging Instruments Unrealized Gain (Loss) on Cash Flow Hedge Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Derivative, Gain (Loss), Statement of Income or Comprehensive Income Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] Reconciliation of Cash to the Consolidated Balance Sheets: BUSINESS AND ORGANIZATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] BUSINESS AND ORGANIZATION SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES PROPERTY PORTFOLIO Real Estate Disclosure [Text Block] PROPERTY PORTFOLIO COMMERCIAL LOANS AND INVESTMENTS SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Text Block] COMMERCIAL LOANS AND INVESTMENTS FAIR VALUE OF FINANCIAL INSTRUMENTS Fair Value Disclosures [Text Block] FAIR VALUE OF FINANCIAL INSTRUMENTS INTANGIBLE ASSETS AND LIABILITIES Intangible Assets Disclosure [Text Block] INTANGIBLE ASSETS AND LIABILITIES No definition available. PROVISION FOR IMPAIRMENT The entire disclosure for provision for impairment. Provision for Impairment Disclosure [Text Block] PROVISION FOR IMPAIRMENT OTHER ASSETS Other Assets Disclosure [Text Block] OTHER ASSETS OPERATING LAND LEASES Lessee, Operating Leases [Text Block] OPERATING LAND LEASES ASSETS HELD FOR SALE Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] ASSETS HELD FOR SALE ACCOUNTS PAYABLE, ACCRUED EXPENSES, AND OTHER LIABILITIES Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Noncurrent [Text Block] ACCOUNTS PAYABLE, ACCRUED EXPENSES, AND OTHER LIABILITIES LONG-TERM DEBT Long-term Debt [Text Block] LONG-TERM DEBT INTEREST RATE SWAPS