Property and Equipment

3 Months Ended

Mar. 31, 2022

Property Plant And Equipment [Abstract]

Property and Equipment

5. Property and Equipment

Property and equipment as of March 31, 2022 and December 31, 2021 consisted of the following:

	March 31, 2022			December 31, 2021
Computers and purchased software	$	25,585		$	25,775
Leasehold improvements		4,260			4,198
Furniture and fixtures		2,673			2,672
Machinery and equipment		36,295			37,325
Land		3,091			3,091
Building		4,765			4,765
Building improvements		7,285			7,291
Trial systems at customers’ sites		3,384			3,848
		87,338			88,965
Less: Accumulated depreciation and amortization		(64,978	)		(65,457	)
	$	22,360		$	23,508

During the three months ended March 31, 2022 and 2021, the Company transferred trial systems into inventory from property and equipment with values of $464 and $661, respectively, net of transfers of trial systems to cost of revenue. In addition, the Company transferred $662 and $23 of equipment into inventory from property and equipment during the three months ended March 31, 2022 and 2021, respectively.

Depreciation and amortization expense on property and equipment totaled $2,082 and $2,701 for the three months ended March 31, 2022 and 2021, respectively.