Outstanding amount of borrowing includes amortizing balance of federal home loan bank advances.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of credit available as a percent of qualifying collateral in support of federal home loan bank advances.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Amount of short term borrowing where a bank borrows, at the federal funds rate, from another bank.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

States the interest rate applicable to Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13(3)(a))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22 (b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	credit
Period Type:	instant

- 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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Period Type:	duration

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- Details

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Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
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- Details

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Federal Home Loan Bank Advances and Other Borrowings - Additional Information (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Available federal funds lines of credit	$ 35,000,000
Residential One-to-four Unit Single Family [Member]
Line of Credit Facility [Line Items]
Credit available as a percent of qualifying collateral	100.00%
Commercial Real Estate [Member]
Line of Credit Facility [Line Items]
Credit available as a percent of qualifying collateral	70.00%
Minimum [Member] \| Home Equity Lines of Credit [Member]
Line of Credit Facility [Line Items]
Credit available as a percent of qualifying collateral	68.00%
Maximum [Member] \| Home Equity Lines of Credit [Member]
Line of Credit Facility [Line Items]
Credit available as a percent of qualifying collateral	84.00%
Federal Home Loan Bank Advances [Member]
Line of Credit Facility [Line Items]
FHLB outstanding includes amortizing balance	$ 16,700,000	$ 23,800,000
Maximum borrowing limit	$ 113,500,000
Federal Home Loan Bank Advances [Member] \| Minimum [Member]
Line of Credit Facility [Line Items]
Interest rate	2.06%
Federal Home Loan Bank Advances [Member] \| Maximum [Member]
Line of Credit Facility [Line Items]
Interest rate	2.70%
Federal Home Loan Bank Advances [Member] \| Weighted Average [Member]
Line of Credit Facility [Line Items]
Interest rate	2.21%	2.66%
Line of Credit with Commercial Banks [Member]
Line of Credit Facility [Line Items]
Available federal funds lines of credit	$ 96,000,000
Federal funds lines of credit in use	0
Federal Reserve Bank of Richmond [Member]
Line of Credit Facility [Line Items]
Available federal funds lines of credit	$ 23,200,000