Prepaid Expenses and Other Current Assets (Tables)

6 Months Ended

Jun. 30, 2018

Prepaid Expense and Other Assets, Current [Abstract]

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets as of June 30, 2018 and December 31, 2017 consisted of the following:

	June 30, 2018		December 31, 2017
	(in thousands)
Other prepaid expenses	$	1,678	$	920
Prepaid insurance		1,827		1,445
Prepaid leases		87		92
Supply inventory		306		434
Total Prepaid expenses and other	$	3,898	$	2,891