Prepaid Expenses and Other Current Assets (Tables)

12 Months Ended

Dec. 31, 2017

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following (in thousands):

	December 31,
	2017		2016
Prepaid insurance	$	311	$	321
Prepaid maintenance contracts	164		84
Prepaid software licenses	120		214
Other prepaid expenses	104		125
Due from vendors	10		—
Prepaid network costs	6		162
Prepaid taxes	—		72
Prepaid expenses and other current assets	$	715	$	978