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Subordinated Debt and Debentures (Tables)
 12 Months Ended
Dec. 31, 2023
Subordinated Borrowings [Abstract]  
Summary Information Regarding Subordinated Debentures
Summary information regarding subordinated debentures as of December 31 follows:
2023
Entity Name
Issue
Date
Subordinated
Debentures 		Trust
Preferred
Securities
Issued		Common
Stock
Issued
(In thousands)
IBC Capital Finance IIIMay 2007$12,372 $12,000 $372 
IBC Capital Finance IVSeptember 200715,465 15,000 465 
Midwest Guaranty Trust INovember 20027,732 7,500 232 
TCSB Statutory Trust IMarch 20055,155 5,000 155 
Discount on TCSB Statutory Trust I(996)(996)— 
$39,728 $38,504 $1,224 
2022
Entity NameIssue
Date
Subordinated
Debentures 		Trust
Preferred
Securities
Issued		Common
Stock
Issued
(In thousands)
IBC Capital Finance IIIMay 2007$12,372 $12,000 $372 
IBC Capital Finance IVSeptember 200715,465 15,000 465 
Midwest Guaranty Trust INovember 20027,732 7,500 232 
TCSB Statutory Trust IMarch 20055,155 5,000 155 
Discount on TCSB Statutory Trust I(1,064)(1,064)— 
$39,660 $38,436 $1,224 
Other Key Terms for Subordinated Debentures and Trust Preferred Securities
Other key terms for the subordinated debentures and trust preferred securities that were outstanding at December 31, 2023 and 2022 follow:
Entity NameMaturity
Date
Interest Rate at 12/31/2022
Interest Rate at 12/31/2023
First Permitted
Redemption Date
IBC Capital Finance IIIJuly 30, 2037
3 month LIBOR plus 1.60%
3 month SOFR plus 1.86%
July 30, 2012
IBC Capital Finance IVSeptember 15, 2037
3 month LIBOR plus 2.85%
3 month SOFR plus 3.11%
September 15, 2012
Midwest Guaranty Trust INovember 7, 2032
3 month LIBOR plus 3.45%
3 month SOFR plus 3.71%
November 7, 2007
TCSB Statutory Trust IMarch 17, 2035
3 month LIBOR plus 2.20%
3 month SOFR plus 2.46%
March 17, 2010