Other Accrued Liabilities - Schedule of Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Other Liabilities Disclosure [Abstract]
Accrued expenses	$ 87	$ 167
Accrued benefits	67	23
Accrued payroll	64	195
Accrued vacation	29	66
Sales tax payable		3
Income taxes payable		106
Deferred revenue	118	206
Total other current liabilities	$ 365	$ 766