Investment Securities - Summary of Amortized Cost, Gross Unrealized Gains and Losses, and Fair Value of Investment Securities Available for Sale (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Securities Available For Sale Reconciliation Of Fair Value To Amortized Cost [Line Items]
Amortized Cost	$ 91,942	$ 101,453	$ 121,408
Gross Unrealized Gains	53	2,787	4,161
Gross Unrealized Losses	(6,239)	(457)	(122)
Fair Value	85,756	103,783	125,447
Held-to-Maturity, Amortized Cost	28,816
Gross Unrecognized Gain	0
Gross Unrecognized Losses	(526)
Held-to-maturity, Fair Value	28,290	0
Small Business Administration Loan Pools [Member]
Debt Securities Available For Sale Reconciliation Of Fair Value To Amortized Cost [Line Items]
Amortized Cost	706	1,099	7,835
Gross Unrealized Gains	0	0	198
Gross Unrealized Losses	(13)	(15)	(39)
Fair Value	693	1,084	7,994
Obligations of state and political subdivisions [Member]
Debt Securities Available For Sale Reconciliation Of Fair Value To Amortized Cost [Line Items]
Amortized Cost	44,389	46,115	49,167
Gross Unrealized Gains	50	2,405	2,895
Gross Unrealized Losses	(3,446)	(38)	(3)
Fair Value	40,993	48,482	52,059
Mortgage-backed securities in government-sponsored entities [Member]
Debt Securities Available For Sale Reconciliation Of Fair Value To Amortized Cost [Line Items]
Amortized Cost	46,847	54,239	64,406
Gross Unrealized Gains	3	382	1,068
Gross Unrealized Losses	(2,780)	(404)	(80)
Fair Value	44,070	$ 54,217	$ 65,394
Corporate Debt Securities [Member]
Debt Securities Available For Sale Reconciliation Of Fair Value To Amortized Cost [Line Items]
Held-to-Maturity, Amortized Cost	9,993
Gross Unrecognized Gain	0
Gross Unrecognized Losses	(241)
Held-to-maturity, Fair Value	9,752
Structured mortgage-backed securities
Debt Securities Available For Sale Reconciliation Of Fair Value To Amortized Cost [Line Items]
Held-to-Maturity, Amortized Cost	18,823
Gross Unrecognized Gain	0
Gross Unrecognized Losses	(285)
Held-to-maturity, Fair Value	$ 18,538

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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