Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE OF FINANCIAL INSTRUMENTS (Change in Fair Value of Level 3 Investments) (Details)

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Change in Fair Value of Level 3 Investments) (Details) - Level 3 Market Quotations (Unobservable) - Measured on a Recurring Basis - ABS - Non-Agency RMBS
9 Months Ended
Sep. 30, 2021
USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation  
Beginning balance $ 3,223,000
Total gains (losses)  
Included in other comprehensive income (loss) (214,000)
Amortization included in interest income 425,000
Purchases, sales and repayments  
Proceeds (20,000)
Ending balance 3,414,000
Purchases 0
Sales $ 0