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Fair Value Measurements - Schedule of Hierarchy and Fair Value for Each Major Category of Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Fair Value Measurements, Recurring Basis |  |
Assets measured at fair value: |  |
Assets measured at fair value | $ 126,069 | $ 73,762
Fair Value Measurements, Recurring Basis | Government Agency Securities |  |
Assets measured at fair value: |  |
Assets measured at fair value | 1,572 | 1,815
Fair Value Measurements, Recurring Basis | SBA Agency Securities |  |
Assets measured at fair value: |  |
Assets measured at fair value | 4,691 | 5,169
Fair Value Measurements, Recurring Basis | Mortgage-Backed Securities |  |
Assets measured at fair value: |  |
Assets measured at fair value | 19,171 | 22,541
Fair Value Measurements, Recurring Basis | Collateralized Mortgage Obligations |  |
Assets measured at fair value: |  |
Assets measured at fair value | 11,654 | 12,066
Fair Value Measurements, Recurring Basis | Commercial Paper |  |
Assets measured at fair value: |  |
Assets measured at fair value | 69,898 | 14,918
Fair Value Measurements, Recurring Basis | Corporate Debt Securities |  |
Assets measured at fair value: |  |
Assets measured at fair value | 19,083 | 17,253
Fair Value Measurements, Nonrecurring Basis |  |
Assets measured at fair value: |  |
Assets measured at fair value | 293 | 1,224
Fair Value Measurements, Nonrecurring Basis | Commercial Real Estate | Collateral Dependent Impaired Loans |  |
Assets measured at fair value: |  |
Assets measured at fair value |  | 123
Fair Value Measurements, Nonrecurring Basis | Other Real Estate Owned |  |
Assets measured at fair value: |  |
Assets measured at fair value | 293 | 1,101
Fair Value Measurements Using Level 2 | Fair Value Measurements, Recurring Basis |  |
Assets measured at fair value: |  |
Assets measured at fair value | 126,069 | 73,762
Fair Value Measurements Using Level 2 | Fair Value Measurements, Recurring Basis | Government Agency Securities |  |
Assets measured at fair value: |  |
Assets measured at fair value | 1,572 | 1,815
Fair Value Measurements Using Level 2 | Fair Value Measurements, Recurring Basis | SBA Agency Securities |  |
Assets measured at fair value: |  |
Assets measured at fair value | 4,691 | 5,169
Fair Value Measurements Using Level 2 | Fair Value Measurements, Recurring Basis | Mortgage-Backed Securities |  |
Assets measured at fair value: |  |
Assets measured at fair value | 19,171 | 22,541
Fair Value Measurements Using Level 2 | Fair Value Measurements, Recurring Basis | Collateralized Mortgage Obligations |  |
Assets measured at fair value: |  |
Assets measured at fair value | 11,654 | 12,066
Fair Value Measurements Using Level 2 | Fair Value Measurements, Recurring Basis | Commercial Paper |  |
Assets measured at fair value: |  |
Assets measured at fair value | 69,898 | 14,918
Fair Value Measurements Using Level 2 | Fair Value Measurements, Recurring Basis | Corporate Debt Securities |  |
Assets measured at fair value: |  |
Assets measured at fair value | 19,083 | 17,253
Fair Value Measurements Using Level 3 | Fair Value Measurements, Nonrecurring Basis |  |
Assets measured at fair value: |  |
Assets measured at fair value | 293 | 1,224
Fair Value Measurements Using Level 3 | Fair Value Measurements, Nonrecurring Basis | Commercial Real Estate | Collateral Dependent Impaired Loans |  |
Assets measured at fair value: |  |
Assets measured at fair value |  | 123
Fair Value Measurements Using Level 3 | Fair Value Measurements, Nonrecurring Basis | Other Real Estate Owned |  |
Assets measured at fair value: |  |
Assets measured at fair value | $ 293 | $ 1,101

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