Accrued Expenses

3 Months Ended

Mar. 31, 2019

Payables And Accruals [Abstract]

Accrued expenses

10. ACCRUED EXPENSES

The following table presents the composition of accrued expenses as of March 31, 2019 and December 31, 2018 (in thousands):

	March 31, 2019		December 31, 2018
Compensation and related benefits	$	3,080	$	4,909
Consulting and professional fees		626		342
Research and development expenses		392		191
Sales and marketing expenses		106		127
Warranty		612		629
Sales and other taxes payable		711		606
Interest payable		255		251
Other		509		493
Accrued expenses	$	6,291	$	7,548