Securities - Summary of Gross Unrealized Losses and Fair Value of Available for Sale Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Gross Unrealized Losses, Less Than 12 Months	$ (518)	$ (6)
Available-for-sale, Fair Value, Less Than 12 Months	45,261	8,231
Available-for-sale, Gross Unrealized Losses, 12 Months or More	(5,496)	(5,461)
Available-for-sale, Fair Value, 12 Months or More	56,918	62,546
Available-for-sale, Gross Unrealized Losses, Total	(6,014)	(5,467)
Available-for-sale, Fair Value, Total	102,179	70,777
U.S. Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Gross Unrealized Losses, Less Than 12 Months	(26)
Available-for-sale, Fair Value, Less Than 12 Months	3,982
Available-for-sale, Gross Unrealized Losses, Total	(26)
Available-for-sale, Fair Value, Total	3,982
U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Gross Unrealized Losses, 12 Months or More	(55)	(92)
Available-for-sale, Fair Value, 12 Months or More	2,945	2,908
Available-for-sale, Gross Unrealized Losses, Total	(55)	(92)
Available-for-sale, Fair Value, Total	2,945	2,908
Mortgage-Backed Securities of Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Gross Unrealized Losses, Less Than 12 Months	(491)	(4)
Available-for-sale, Fair Value, Less Than 12 Months	39,760	6,713
Available-for-sale, Gross Unrealized Losses, 12 Months or More	(4,720)	(4,575)
Available-for-sale, Fair Value, 12 Months or More	35,514	38,734
Available-for-sale, Gross Unrealized Losses, Total	(5,211)	(4,579)
Available-for-sale, Fair Value, Total	75,274	45,447
Asset-Backed Securities of Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Gross Unrealized Losses, 12 Months or More	(7)	(8)
Available-for-sale, Fair Value, 12 Months or More	324	347
Available-for-sale, Gross Unrealized Losses, Total	(7)	(8)
Available-for-sale, Fair Value, Total	324	347
State and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Gross Unrealized Losses, Less Than 12 Months	(1)	(2)
Available-for-sale, Fair Value, Less Than 12 Months	1,519	1,518
Available-for-sale, Gross Unrealized Losses, 12 Months or More	(430)	(431)
Available-for-sale, Fair Value, 12 Months or More	8,488	8,508
Available-for-sale, Gross Unrealized Losses, Total	(431)	(433)
Available-for-sale, Fair Value, Total	10,007	10,026
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Gross Unrealized Losses, 12 Months or More	(284)	(355)
Available-for-sale, Fair Value, 12 Months or More	9,647	12,049
Available-for-sale, Gross Unrealized Losses, Total	(284)	(355)
Available-for-sale, Fair Value, Total	$ 9,647	$ 12,049

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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