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FAIR VALUE - Schedule of Additional Qualitative Information (Detail) - Fair Value, Measurements, Nonrecurring $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Impaired loans | Appraisal of collateral
Fair Value Inputs and Valuation Techniques [Line Items]
Fair Value Estimate	$ 1,392	$ 1,621
Impaired loans | Appraisal of collateral | Minimum
Fair Value Inputs and Valuation Techniques [Line Items]
Asset, measurement input (percent)		0.0602
Impaired loans | Appraisal of collateral | Maximum
Fair Value Inputs and Valuation Techniques [Line Items]
Asset, measurement input (percent)		0.1932
Mortgage servicing rights | Discounted cash flows
Fair Value Inputs and Valuation Techniques [Line Items]
Fair Value Estimate	$ 322	$ 2,732
Measurement Input, Discount Rate | Impaired loans | Minimum
Fair Value Inputs and Valuation Techniques [Line Items]
Asset, measurement input (percent)	0.0608
Measurement Input, Discount Rate | Impaired loans | Maximum
Fair Value Inputs and Valuation Techniques [Line Items]
Asset, measurement input (percent)	0.1793
Measurement Input, Discount Rate | Impaired loans | Appraisal of collateral | Minimum
Fair Value Inputs and Valuation Techniques [Line Items]
Asset, measurement input (percent)	0.10	0.05
Measurement Input, Discount Rate | Impaired loans | Appraisal of collateral | Maximum
Fair Value Inputs and Valuation Techniques [Line Items]
Asset, measurement input (percent)	0.25	0.25
Measurement Input, Discount Rate | Mortgage servicing rights | Discounted cash flows
Fair Value Inputs and Valuation Techniques [Line Items]
Asset, measurement input (percent)	0.0903	0.0956
Measurement Input, Constant Prepayment Rate | Mortgage servicing rights | Discounted cash flows
Fair Value Inputs and Valuation Techniques [Line Items]
Asset, measurement input (percent)	0.1260	0.1802

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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- Definition

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.

+ References

No definition available.

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- Definition

Value of input used to measure servicing asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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