Property and Equipment

12 Months Ended

Dec. 31, 2021

Property Plant And Equipment Net [Abstract]

Property and Equipment

Note 6.  Property and Equipment

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

	December 31,
	2021			2020
Lasers	$	3,085		$	3,194
Machinery and equipment		858			834
Computer hardware and software		353			353
Construction in progress		169			51
Leasehold improvements		145			119
Furniture and fixtures		48			48
Automobiles		—			1,054
Property and equipment, gross		4,658			5,653
Accumulated depreciation		(2,849	)		(3,126	)
Property and equipment, net	$	1,809		$	2,527

Depreciation expense was $1.0 million and $1.6 million for the years ended December 31, 2021 and 2020, respectively.