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Other Current Assets - Schedule of Other Current Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
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