Accrued Expenses

12 Months Ended

Dec. 31, 2020

Payables and Accruals [Abstract]

Accrued Expenses

5. Accrued Expenses

Accrued expenses consist of the following (in thousands):

	As of December 31,
	2020		2019
Accrued returns and warranty	$	25	$	24
Accrued consulting fees and other		520		517
Total accrued expenses	$	545	$	541