Accrued Expenses (Tables)

6 Months Ended

Jun. 30, 2018

Payables And Accruals [Abstract]

Summary of Composition of Accrued Expenses

The following table presents the composition of accrued expenses as of June 30, 2018 and December 31, 2017 (in thousands):

	June 30, 2018		December 31, 2017
Compensation and related benefits	$	2,642	$	4,465
Consulting and professional fees		2,701		461
Research and development expenses		303		497
Sales and marketing expenses		156		620
Warranty		653		570
Sales tax payable		331		322
Interest payable		235		188
Other		710		388
Accrued expenses	$	7,731	$	7,511