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FAIR VALUE DISCLOSURES - Summary of Financial Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis (Detail) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Fair Value, Inputs, Level 1 [Member] |  |
Assets |  |
Impaired loans | $ 0 | $ 0
Other Real Estate Owned, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |
Assets |  |
Impaired loans | 0 | 0
Other Real Estate Owned, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |
Assets |  |
Impaired loans | 1,320 | 2,671
Other Real Estate Owned, Fair Value Disclosure | $ 1,089 | $ 1,086

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