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Other Current Assets - Schedule of Other Current Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Prepaid expense and deposits | $ 69 | $ 83
Deferred costs | 999 | 829
Other | 22 | 20
Other current assets | $ 1,090 | $ 932

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