Modifications to Borrowers Experiencing Financial Difficulty - Additional Information (Detail)	3 Months Ended	12 Months Ended
Mar. 31, 2023 USD ($) Loan	Mar. 31, 2022 Contract	Dec. 31, 2022 USD ($) Contract
Receivables [Abstract]
TDR borrowers experiencing subsequently defaulted	$ 0
Number of loans issued to borrowers \| Loan	0
TDR is defined as being past due	90 days
Current outstanding loans modified			$ 2,800,000
Number of contracts on non accrual basis \| Contract			2
Outstanding balance of TDRs non accrual basis			$ 52,000
Number of Contracts \| Contract		0

Number of financing receivables that have been modified by troubled debt restructurings.

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- Definition

Amount of financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

+ Details

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- Definition

Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

+ Details

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- References

No definition available.

+ Details

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- Definition

Financing receivable modification nonaccrual status.

+ References

No definition available.

+ Details

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- Definition

Financing receivable modifications number of contracts on nonaccrual basis.

+ References

No definition available.

+ Details

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- Definition

Financing receivable number of loans issued to borrowers.

+ References

No definition available.

+ Details

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- Definition

Troubled debt restructuring default past due period.

+ References

No definition available.

+ Details

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