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Income Taxes - Schedule of Deferred Income Taxes (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Income Tax Disclosure [Abstract] |  |
Net deferred tax asset | $ 1,428 | $ 1,765
Gross deferred tax liability | 1,785 | 3,438
Net deferred tax liability | $ 357 | $ 1,673

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