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Fair Value Measurements (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Fair Value Measurements |  |
Specific Reserve | $ 20 | $ 230

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- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524 + Details
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