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Borrowings - Terms of Current Debentures (Details) - Junior Subordinated Debt - USD ($)
$ in Thousands
12 Months Ended
Dec. 13, 2023
Dec. 04, 2023
Dec. 31, 2023
Debt Instrument [Line Items]      
Total assumed subordinated notes     $ 18,043
Unamortized original issue discount     (1,016)
Unamortized purchase accounting discount     (671)
Total     16,356
CTB Statutory Trust I      
Debt Instrument [Line Items]      
Total assumed subordinated notes     $ 6,702
Current Rate     8.94%
CTB Statutory Trust I | Secured Overnight Financing Rate (SOFR)      
Debt Instrument [Line Items]      
Interest Rate     3.30%
CTB Statutory Trust I | Maximum      
Debt Instrument [Line Items]      
Maximum Rate     12.50%
First Louisiana Statutory Trust I      
Debt Instrument [Line Items]      
Total assumed subordinated notes     $ 4,124
Current Rate     7.45%
First Louisiana Statutory Trust I | Secured Overnight Financing Rate (SOFR)      
Debt Instrument [Line Items]      
Interest Rate 0.26161%   1.80%
First Louisiana Statutory Trust I | Maximum      
Debt Instrument [Line Items]      
Maximum Rate     16.00%
BT Holdings Trust I      
Debt Instrument [Line Items]      
Total assumed subordinated notes     $ 7,217
Current Rate     7.26%
BT Holdings Trust I | Secured Overnight Financing Rate (SOFR)      
Debt Instrument [Line Items]      
Interest Rate   0.26161% 1.64%