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General Partners and Other Related Parties - Additional Information (Details)
1 Months Ended 12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Loan
Dec. 31, 2020
USD ($)
Loan
General Partners And Other Related Parties Details [Line Items]      
Management fee, description   The general partners are entitled to monthly fees for managing the partnership’s loan portfolio and operations of up to 1/32 of 1% of the “net asset value” (3/8 of 1% annually).  
Loan Brokerage Commissions, Maximum Percent of Assets   4.00%  
Limited partners’ capital   $ 69,555,000 $ 82,991,000
Scheduled withdrawals   22,472,000  
Payable to related party (Note 3)   47,000 0
Amount due from manager and related mortgage funds, net   $ 0 $ 2,000,000
Number of performing loans | Loan   4 2
Performing loans mortgaged, par value   $ 5,711,000 $ 3,374,000
RMC and Burwell [Member]      
General Partners And Other Related Parties Details [Line Items]      
Payable to related party (Note 3)   $ 47,000 3,000
Partial settlement of payable to related parties offset by receivable     $ 5,000
Number of performing loans | Loan   2 0
Performing loans mortgaged, par value   $ 1,371,000  
Limited Partner [Member]      
General Partners And Other Related Parties Details [Line Items]      
Scheduled withdrawals   22,472,000 $ 31,469,000
Partnership Agreement [Member] | Limited Partner [Member]      
General Partners And Other Related Parties Details [Line Items]      
Limited partners’ capital   516,000  
Formation Loan [Member]      
General Partners And Other Related Parties Details [Line Items]      
Formation loan, advances   22,567,000  
Receivable from affiliate (formation loan)   3,361,000  
RMC [Member]      
General Partners And Other Related Parties Details [Line Items]      
Brokerage commissions paid to RMC   $ 429,000 224,000
Quarterly payments of principal, without interest     $ 162,500
RMC [Member] | Scenario Forecast [Member]      
General Partners And Other Related Parties Details [Line Items]      
Formation loan advances to RMC $ 650,000    
Maximum [Member]      
General Partners And Other Related Parties Details [Line Items]      
Annual mortgage servicing fee, percentage   1.50%  
Percentage of offering proceeds   7.00%