LOANS - Summary of impaired loans (Detail)	12 Months Ended
Dec. 31, 2022 USD ($)
Financing Receivable, Past Due [Line Items]
Loans with no related allowance recorded	$ 1,724,569
Loans with an allowance recorded	171,616
Amount of allowance for loan losses allocated	33,000
Average of individually impaired loans	1,815,109
Residential First Mortgage \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
Loans with no related allowance recorded	1,199,278
Loans with an allowance recorded	171,616
Amount of allowance for loan losses allocated	33,000
Average of individually impaired loans	1,300,615
Commercial and Multi-Family Real Estate \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
Loans with no related allowance recorded	488,222
Average of individually impaired loans	488,196
Home Equity and Other Consumer \| Consumer
Financing Receivable, Past Due [Line Items]
Loans with no related allowance recorded	37,069
Average of individually impaired loans	$ 26,298

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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