Property and Equipment

3 Months Ended

Mar. 31, 2020

4. Property and Equipment

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


	March 31,		December 31,
	2020		2019
Computers and other related equipment	$	11,576	$	11,333
Purchased and internally developed software		35,512		34,008
Furniture and fixtures		1,514		1,514
Leasehold improvements		6,795		6,795
Machinery and related equipment		569		569
		55,966		54,219
Less accumulated depreciation		(42,164)		(40,422)
Property and equipment, net	$	13,802	$	13,797

Depreciation and software amortization expense, which includes losses on disposal of property and equipment of less than $0.1 million for the three months ended March 31, 2020 and 2019, is shown by classification below (in thousands):


	Three months ended March 31,
	2020		2019
Product costs	$	522	$	368
Service costs		1,047		936
Sales and marketing		9		7
Product development		13		11
General and administrative		163		477
Total depreciation	$	1,754	$	1,799