Loans Held For Investment - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Schedule Of Investments [Line Items]    
Loan Rate   LIBOR plus 4.25%
Fair value of loans held for investment $ 29,697 $ 45,000
Revolving Credit Facility    
Schedule Of Investments [Line Items]    
Loan Rate LIBOR plus 3.75%  
Revolving credit facility, committed fund $ 30,000  
Revolving credit facility $ 130,000  
Revolving credit facility maturity date Jul. 07, 2024  
Unused commitment fee percentage 0.50%  
Revolving credit facility, unfunded commitment $ 30,000  
Minimum    
Schedule Of Investments [Line Items]    
Loan LIBOR floor rate   2.00%
Minimum | Revolving Credit Facility    
Schedule Of Investments [Line Items]    
Loan LIBOR floor rate 1.00%  
Commercial Real Estate Mortgage Loan    
Schedule Of Investments [Line Items]    
Outstanding principal balance $ 29,697 $ 45,000
Healthcare Facilities Mortgage Loan    
Schedule Of Investments [Line Items]    
Outstanding principal balance   $ 45,000
Healthcare Facilities Mortgage Loan | Loan Purchase    
Schedule Of Investments [Line Items]    
Outstanding principal balance $ 29,697  
Loan Rate LIBOR plus 5.50%.  
Loan maturity date Mar. 23, 2022  
Available period for extension 1 year