Note 4 - Property and Equipment

12 Months Ended

Dec. 31, 2021

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

4. Property and Equipment

Property and equipment consists of the following:

	As of December 31,
	2021			2020
	(in thousands)
Computers and equipment	$	5,667		$	5,046
Machinery and equipment		18,439			17,266
Building and leasehold improvements		15,884			12,809
Gross property and equipment		39,990			35,121
Less accumulated depreciation		(22,931	)		(20,085	)
Property and equipment, net	$	17,059		$	15,036

During the years ended December 31, 2021, 2020 and 2019 we wrote off fully depreciated assets with gross values of $0.1 million, $0.6 million and $0.5 million, respectively.

Depreciation expense is as follows:

	Year ended December 31,
	2021		2020		2019
			(in thousands)
Depreciation expense	$	3,280	$	3,181	$	2,979