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Fair Value - Summary of Financial Assets Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | $ 109,475 | $ 108,571
Mortgage derivative asset | 5,293 | 591
Mortgage derivative liability | 1,600 | 2
Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 109,475 | 108,571
Fair Value, Recurring [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 109,475 | 108,571
Mortgage derivative asset | 5,293 | 591
Mortgage derivative liability | 1,569 | 2
Fair Value, Recurring [Member] | State and Municipal [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 14,259 |
Fair Value, Recurring [Member] | Interest Rate Swap Agreement [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Interest rate swap asset | 1,716 | 185
Interest rate swap liability | 2,735 | 430
Fair Value, Recurring [Member] | U.S. Treasury and Agencies [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 2,409 | 2,449
Fair Value, Recurring [Member] | Mortgage Backed Securities [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 72,635 | 95,485
Fair Value, Recurring [Member] | Corporate Bonds [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 20,172 | 10,637
Fair Value, Recurring [Member] | Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 109,475 | 108,571
Mortgage derivative asset | 5,293 | 591
Mortgage derivative liability | 1,569 | 2
Fair Value, Recurring [Member] | Level 2 [Member] | State and Municipal [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 14,259 |
Fair Value, Recurring [Member] | Level 2 [Member] | Interest Rate Swap Agreement [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Interest rate swap asset | 1,716 | 185
Interest rate swap liability | 2,735 | 430
Fair Value, Recurring [Member] | Level 2 [Member] | U.S. Treasury and Agencies [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 2,409 | 2,449
Fair Value, Recurring [Member] | Level 2 [Member] | Mortgage Backed Securities [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 72,635 | 95,485
Fair Value, Recurring [Member] | Level 2 [Member] | Corporate Bonds [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | $ 20,172 | $ 10,637

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- 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=117815213&loc=d3e19207-110258 + Details
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- Definition Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities. + References No definition available. + Details
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