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Schedule IV - Mortgage Loans on Real Estate Schedule IV - Mortgage Loans on Real Estate (Details) - USD ($) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Carrying amount | $ 175,830,000 | $ 162,433,000 | $ 164,576,000 | $ 230,927,000
Amount of delinquent loans | 0 |  |  |
Federal income tax basis | 188,700,000 |  |  |
Origination fee, and premium (discount) | $ 651,200 |  |  |
Second Mortgages | Winter Park, FL |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest | 12.00% |  |  |
Maturity | Oct. 31, 2025 |  |  |
Payment | Interest Only |  |  |
Face Amount | $ 725,000 |  |  |
Carrying amount | $ 725,000 |  |  |
Construction Loans | Canton, MI |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest | 9.00% |  |  |
Maturity | Jul. 31, 2025 |  |  |
Payment | Interest Only |  |  |
Face Amount | $ 14,700,000 |  |  |
Carrying amount | $ 14,700,000 |  |  |
Construction Loans | Fitchburg, WI |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest | 8.50% |  |  |
Maturity | Jan. 28, 2026 |  |  |
Payment | Interest Only |  |  |
Face Amount | $ 28,386,000 |  |  |
Carrying amount | $ 28,386,000 |  |  |
Construction Loans | Lake City, FL |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest | 9.00% |  |  |
Maturity | Aug. 31, 2028 |  |  |
Payment | Interest Only |  |  |
Face Amount | $ 7,172,000 |  |  |
Carrying amount | $ 7,172,000 |  |  |
Skilled Nursing Facilities | First Mortgages | Austin/San Antonio, TX |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest | 7.25% |  |  |
Maturity | Nov. 30, 2027 |  |  |
Payment | Interest Only |  |  |
Face Amount | $ 42,500,000 |  |  |
Carrying amount | $ 42,465,000 |  |  |
Skilled Nursing Facilities | First Mortgages | Maitland, FL |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest | 8.50% |  |  |
Maturity | Dec. 31, 2027 |  |  |
Payment | Interest Only |  |  |
Face Amount | $ 9,000,000 |  |  |
Carrying amount | $ 9,000,000 |  |  |
Assisted Living Facilities | First Mortgages | Oviedo, FL |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest | 8.25% |  |  |
Maturity | Jul. 31, 2025 |  |  |
Payment | Interest Only |  |  |
Face Amount | $ 10,000,000 |  |  |
Carrying amount | $ 10,000,000 |  |  |
Assisted Living Facilities | First Mortgages | Indianapolis, IN |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest | 7.00% |  |  |
Maturity | Jun. 30, 2025 |  |  |
Payment | Interest Only |  |  |
Face Amount | $ 6,423,000 |  |  |
Carrying amount | $ 6,423,000 |  |  |
Assisted Living Facilities | First Mortgages | Tulsa, OK |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest | 8.50% |  |  |
Maturity | Jun. 30, 2029 |  |  |
Payment | Interest Only |  |  |
Face Amount | $ 9,500,000 |  |  |
Carrying amount | $ 9,416,000 |  |  |
Assisted Living Facilities | First Mortgages | Bloomington, IL |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest | 8.75% |  |  |
Maturity | Feb. 28, 2029 |  |  |
Payment | Interest Only |  |  |
Face Amount | $ 15,000,000 |  |  |
Carrying amount | $ 14,877,000 |  |  |
Entrance-Fee Communities | First Mortgages | Columbia, SC |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest | 7.25% |  |  |
Maturity | Jun. 30, 2025 |  |  |
Payment | Interest Only |  |  |
Face Amount | $ 32,700,000 |  |  |
Carrying amount | $ 32,666,000 |  |  |

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- Definition Maturity date of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate, in YYYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Paragraph Column C -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column C)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1 + Details
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- Definition Description of contractual payment terms of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. Includes, but is not limited to, whether mortgage loan is payable at level or varying amount to maturity, balloon payment requirement at maturity, and prepayment penalty. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Paragraph Column D -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column D)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1 + Details
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