Advances from Federal Home Loan Banks excluding fair value related to acquisition.

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Advances from Federal Home Loan Banks fair value related to acquisition.

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Bank loan maturity year.

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Business combination recognized bank amount.

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Federal Home Loan Bank advances general debt obligations disclosures amount of available unused funds based on current pledging.

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Number of loans secured.

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Percentage of interest on loan accrues rate.

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Percentage of line of credit accrues rate.

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Percentage of notes prices on principal amount.

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Unpledged securities.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Description of the frequency of periodic payments (monthly, quarterly, annual).

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Percentage of principal amount of debt redeemed.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maturity date of long-term debt, in YYYY-MM-DD format.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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Description of the short-term debt arrangement, and disclosures pertaining to the underlying arrangements, including repayment terms, interest rates, restrictions on assets and activities, debt covenants, and other matters important to users of the financial statements.

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Borrowings and Subordinated Notes - Additional Information (Detail) $ in Thousands		12 Months Ended
	Jul. 30, 2021 USD ($)	Dec. 31, 2022 USD ($) Loan	Dec. 31, 2021 USD ($)	Sep. 29, 2022 USD ($)
Debt Instrument [Line Items]
Number of loans secured \| Loan		2
Term note		$ 30,000
Line of credit		$ 10,000		$ 10,000
Percentage of interest on loan accrues rate		2.50%
Percentage of line of credit accrues rate				5.50%
Maturity date		Sep. 30, 2023
Total borrowings excluding for fair value related to acquisition		$ 127,438	$ 23,900
Total borrowings, fair value related to acquisition		47	197
Advances, secured by mortgage loans		659	1,449
Unsecured borrowings through correspondent banks		73,000	69,000
Unpledged securities which could be sold or used as collateral		249,600	313,600
Additional borrowings available from the Federal Home Loan Bank based on current pledging		2,000	$ 91,200
Debt instrument basis points	2.63%
Debt instrument, frequency of periodic payment	semi-annually
Term of loan	5 years		3 years
Redemption price of principal amount of notes redeemed	100.00%
Private Placement
Debt Instrument [Line Items]
Subordinated notes	$ 35,000
Fixed-to-floating interest rate	3.25%
Subordinated notes, due date	Jul. 30, 2031
Percentage of notes prices on principal amount	100.00%
Peoples Federal Savings And Loan Bank [Member]
Debt Instrument [Line Items]
Bank undertook amount		$ 965
Peoples Federal Savings And Loan Bank [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Bank loan maturity year		2022
Peoples Federal Savings And Loan Bank [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Bank loan maturity year		2028
Perpetual Federal Savings Bank {Member]
Debt Instrument [Line Items]
Bank undertook amount		$ 6,000
Mortgage Loans at Cost [Member] \| Asset Pledged as Collateral without Right [Member] \| Federal Home Loan Bank Advances [Member]
Debt Instrument [Line Items]
Advances, secured by mortgage loans		232,900	$ 193,200
Cash Management Advance
Debt Instrument [Line Items]
Unsecured borrowings through correspondent banks		$ 130,400	$ 94,200
Term Note [Member]
Debt Instrument [Line Items]
Short term debt, term		12-month
Line of Credit [Member]
Debt Instrument [Line Items]
Short term debt, term		12-month