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Borrowed Funds - Senior term loan (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
	Oct. 31, 2022	Mar. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Secured Borrowings
Senior term loan		$ 9,647	$ 9,765
Senior Loans
Secured Borrowings
Senior term loan			9,647	$ 9,765
Average balance during the year		9,765	2,328
Maximum month-end balance		$ 9,768	$ 9,886
Weighted-average rate during the period		8.06%	7.00%
Weighted-average rate at end of period		8.27%	7.44%
Senior Loans | Raymond James Senior Term Loan
Secured Borrowings
Face amount of debt issued	$ 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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