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INVESTMENT IN DEBT SECURITIES HELD TO MATURITY - Margin Credit Line (Details)
12 Months Ended
Dec. 31, 2025
USD ($)
INVESTMENT IN DEBT SECURITIES HELD TO MATURITY  
Line of credit maximum borrowing capacity $ 19,000,000
Basis spread on variable rate (as a percent) 1.00%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] us-gaap:BaseRateMember
Outstanding borrowings $ 0