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Borrowed Funds - Senior term loan (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended	12 Months Ended
	Oct. 31, 2022	Oct. 31, 2022	Mar. 31, 2024	Dec. 31, 2023
Secured Borrowings
Balance at end of period			$ 6,549	$ 6,786
Senior Loans
Secured Borrowings
Balance at end of period			6,549	6,786
Average balance during the period			6,736	9,007
Maximum month-end balance			$ 6,794	$ 9,768
Weighted-average rate during the period			8.18%	8.50%
Weighted-average rate at end of period			7.63%	8.76%
Senior Loans | Raymond James Senior Term Loan
Secured Borrowings
Face amount of debt issued	$ 10,000	$ 10,000
Upfront fee (as a percent)		1.00%
Senior Loans | Raymond James Senior Term Loan | First year
Secured Borrowings
Periodic principal payment	125
Senior Loans | Raymond James Senior Term Loan | Thereafter
Secured Borrowings
Periodic principal payment	$ 250
Senior Loans | Raymond James Senior Term Loan | SOFR
Secured Borrowings
Base rate		2.75%

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