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:

	December 31,
	2017		2016
Prepaid expenses and other current assets	$	2,231	$	1,687
Prepaid rent	127		—
Leasehold improvement incentives	—		55
Deferred rental income	141		91
Total prepaid expenses and other current assets	$	2,499	$	1,833