Loans - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Loans [Line Items]
Loans modification, modified terms allowance period minimum	12 months
Loans modification, modified terms allowance period maximum	24 months
Provision for loan loss expense	$ 22	$ 31
Partial charge offs for troubled debt restructured	$ 21	8
Percentage of troubled debt restructured current pursuant to modified terms	61.00%
Non performing TDRs	$ 4,648
Percentage of troubled debt restructured not performing pursuant to their modified terms	39.00%
Loans modified as TDRs	$ 482	713
Loan loss provision modified as TDRs	14	0
Provision for loan loss expense within twelve months	1	0
Partial charge offs for troubled debt restructured	1	0
Reclassification from non-accretable difference		$ 7,199
Real Estate Loan [Member]
Loans [Line Items]
Loans Pledged as Collateral	$ 19,611

Loans.

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- Definition

Loans modified as troubled debt restructurings during the period.

+ References

No definition available.

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- Definition

Loans receivable modification of terms period allowed maximum.

+ References

No definition available.

+ Details

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- Definition

Loans receivable modification of terms period allowed minimum.

+ References

No definition available.

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- Definition

Non performing troubled debt restructured loans.

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- Definition

Partial charge offs for troubled debt restructured.

+ References

No definition available.

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- Definition

Partial charge offs for troubled debt restructured.

+ References

No definition available.

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- Definition

Percentage of troubled debt restructured current pursuant to modified terms.

+ References

No definition available.

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- Definition

Percentage of troubled debt restructured not performing pursuant to their modified terms.

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No definition available.

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- Definition

Provision for loan loss expense.

+ References

No definition available.

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- Definition

Provision for loan loss expense within twelve months.

+ References

No definition available.

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- Definition

Provision for loan losses recorded for loans modified as troubled debt restructurings during the period.

+ References

No definition available.

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- Definition

Amount of increase of reclassification from nonaccretable difference to the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
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- Definition

Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728

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