Prepaid Expenses and Other Current Assets

6 Months Ended

Jun. 30, 2020

Prepaid Expense And Other Assets Current [Abstract]

Prepaid Expenses and Other Current Assets

4. PREPAID EXPENSES AND OTHER CURRENT ASSETS

Prepaids and other current assets consisted of the following as of December 31, 2019 and June 30, 2020:

	December 31, 2019		June 30, 2020
	(in thousands)
Prepaid inventory	$	2,195	$	3,670
Restricted cash		307		312
Prepaid insurance		1,967		1,664
Other		926		1,025
Prepaid and other current assets	$	5,395	$	6,671