Composition of Certain Balance Sheet Items (Tables)

3 Months Ended

Mar. 31, 2021

Composition of Certain Balance Sheet Items [Abstract]

Schedule of Property and Equipment

Property and equipment, net consisted of the following (in thousands):

	March 31,		December 31,
	2021		2020
Machinery and equipment	$	9,350	$	9,343
Leasehold improvements	1,318		1,278
Purchased computer software	1,424		1,423
	12,092		12,044
Less: accumulated depreciation and amortization	(9,797)		(9,493)
Property and equipment, net	$	2,295	$	2,551

Schedule of Other Current Liabilities

Other current liabilities consisted of the following (in thousands):

	March 31,
	2021		2020
Payroll and related expenses	$	3,516	$	5,927
Professional services	510		696
Other	246		516
Other current liabilities	$	4,272	$	7,139