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NOTES RECEIVABLE AND ADVANCES, NET - Advances to Sierra Springs Opportunity Fund, Inc. (Details) - USD ($)
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Proceeds from SSOF advance settlement $ 0 $ 1,300,000
Sierra Springs Opportunity Fund, Inc., at cost    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Payments for advance to affiliate 935,000 1,300,000
Proceeds from SSOF advance settlement $ 935,000 $ 1,300,000