FHLB Advances and Other Borrowings - Summary of Federal Home Loan Bank Advances (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Federal Home Loan Bank, Advances [Line Items]
FHLB Advances, total	$ 71,007	$ 71,464
Open line of credit [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	5.72%
FHLB Advances, total	$ 8,000
Fixed rate, fixed term advance, maturing February 2023 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate		1.62%
FHLB Advances, total		$ 6,500
Fixed rate, fixed term advance, maturing July 2027 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	2.90%	2.90%
FHLB Advances, total	$ 5,000	$ 5,000
Putable advance, maturing July 2029 first option date January 2023 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate		1.68%
FHLB Advances, total		$ 5,000
Putable advance, maturing February 2030 first option date February 2023 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate		0.98%
FHLB Advances, total		$ 5,000
Putable advance, maturing October 2029 first option date July 2023 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate		2.96%
FHLB Advances, total		$ 5,000
Putable advance, maturing January 2028 first option date January 2024 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	3.44%
FHLB Advances, total	$ 5,000
Putable advance, maturing February 2028 first option date February 2024 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	3.63%
FHLB Advances, total	$ 5,000
Putable advance, maturing March 2028 first option date March 2024 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	3.47%
FHLB Advances, total	$ 5,000
Putable advance, maturing May 2026 first option date May 2024 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	3.92%
FHLB Advances, total	$ 2,500
Putable advance, maturing May 2028 first option date May 2024 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	3.51%
FHLB Advances, total	$ 2,500
Putable advance, maturing March 2030 first option date March 2025 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	0.89%	0.89%
FHLB Advances, total	$ 10,000	$ 10,000
Putable Advance, Maturing March 2032 First Option Date March 2027 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	1.74%	1.74%
FHLB Advances, total	$ 10,000	$ 10,000
Advanced structured note, payments due monthly, maturing April 2030 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	1.05%	1.05%
FHLB Advances, total	$ 6,454	$ 7,435
Advanced structured note, payments due monthly, maturing May 2030 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	1.19%	1.19%
FHLB Advances, total	$ 6,553	$ 7,529
SOFR Floater advance, maturing October 2023 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate		4.54%
FHLB Advances, total		$ 5,000
SOFR Floater advance, maturing October 2024 [Member]
Federal Home Loan Bank, Advances [Line Items]
FHLB advances, interest rate	5.68%	4.59%
FHLB Advances, total	$ 5,000	$ 5,000