Accrued Expenses

12 Months Ended

Dec. 31, 2017

Accrued Expenses [Abstract]

Accrued Expenses

5. Accrued Expenses

Accrued expenses consist of the following (in thousands):

	As of December 31,
	2017		2016
Accrued returns and warranty	$	35	$	11
Accrued consulting fees and other		142		161
Total accrued expenses	$	177	$	172