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Other Borrowed Funds - Summary of federal home loan bank, advances, by branch of FHLB bank (Detail) - Federal Home Loan Bank of Atlanta [Member] - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 129,600 | $ 73,100
Federal Home Loan Bank Advance Fixed Rate One [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 15,000 | $ 5,000
Interest rate | 2.31% | 2.42%
Maturity date | Oct. 01, 2019 | Jan. 03, 2019
Federal Home Loan Bank Advance Fixed Rate Two [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 5,000 | $ 2,800
Interest rate | 2.58% | 2.40%
Maturity date | Oct. 04, 2019 | Jan. 07, 2019
Federal Home Loan Bank Advance Fixed Rate Three [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 5,000 | $ 4,500
Interest rate | 2.15% | 2.38%
Maturity date | Oct. 16, 2019 | Jan. 09, 2019
Federal Home Loan Bank Advance Fixed Rate Four [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 4,000 | $ 5,000
Interest rate | 2.59% | 2.46%
Maturity date | Oct. 23, 2019 | Jan. 16, 2019
Federal Home Loan Bank Advance Fixed Rate Five [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 3,500 | $ 1,200
Interest rate | 2.58% | 2.49%
Maturity date | Oct. 30, 2019 | Jan. 18, 2019
Federal Home Loan Bank Advance Fixed Rate Six [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 25,000 | $ 8,000
Interest rate | 2.24% | 2.47%
Maturity date | Nov. 04, 2019 | Jan. 31, 2019
Federal Home Loan Bank Advance Fixed Rate Seven [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 10,000 | $ 3,000
Interest rate | 2.13% | 2.51%
Maturity date | Nov. 29, 2019 | Mar. 08, 2019
Federal Home Loan Bank Advance Fixed Rate Eight [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 7,000 | $ 2,000
Interest rate | 2.51% | 2.54%
Maturity date | Nov. 29, 2019 | Mar. 19, 2019
Federal Home Loan Bank Advance Fixed Rate Nine [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 10,000 | $ 5,000
Interest rate | 2.46% | 2.55%
Maturity date | Dec. 04, 2019 | Apr. 01, 2019
Federal Home Loan Bank Advance Daily Rate Ten [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 10,000 |
Interest rate | 2.07% |
Maturity date | Dec. 30, 2019 |
Federal Home Loan Bank Advance Fixed Rate Ten [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance |  | $ 3,500
Interest rate |  | 2.62%
Maturity date |  | Apr. 30, 2019
Federal Home Loan Bank Advance Fixed Rate Eleven [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 26,100 | $ 4,000
Interest rate | 2.49% | 1.34%
Maturity date | May 04, 2020 | May 31, 2019
Federal Home Loan Bank Advance Fixed Rate Twelve [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 5,000 | $ 2,000
Interest rate | 1.99% | 2.66%
Maturity date | May 06, 2020 | Jun. 19, 2019
Federal Home Loan Bank Advance Fixed Rate Thirteen [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance | $ 4,000 | $ 1,000
Interest rate | 2.15% | 3.95%
Maturity date | Sep. 09, 2020 | Aug. 27, 2019
Federal Home Loan Bank Advance Daily Rate Fourteen [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance |  | $ 22,100
Interest rate |  | 2.65%
Maturity date |  | Aug. 30, 2019
Federal Home Loan Bank Advance Fixed Rate Fifteen [Member] |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Balance |  | $ 4,000
Interest rate |  | 2.13%
Maturity date |  | Sep. 30, 2019

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- Definition Federal home loan bank advance branch of FHLB bank maturity date. + References No definition available. + Details
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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + 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 + Details
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- Definition Discloses the single interest rate [if] applicable to the advances from the Federal Home Loan Bank, by branch, 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 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 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 + Details
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