Note D - Property and Equipment

12 Months Ended

Dec. 31, 2017

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

D. Property and Equipment  

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

	December 31,
	2017			2016
Laboratory equipment	$	983		$	842
Furniture and office equipment		655			733
Computers and hardware		292			231
Leasehold improvements		1,003			769
Total property and equipment		2,933			2,575
Less: accumulated depreciation and amortization		(929	)		(605	)
Property and equipment, net	$	2,004		$	1,970

The Company leases various equipment and leasehold improvements under capital lease agreements. The assets under capital leases are included in property and equipment as follows (in thousands):

	December 31,
	2017			2016
Laboratory equipment	$	366		$	271
Furniture and office equipment		541			537
Leasehold improvements		59			59
Total property and equipment financed under a capital lease agreement		966			867
Less: accumulated depreciation and amortization		(150	)		(31	)
Property and equipment financed under a capital lease agreement, net	$	816		$	836

The estimated useful lives of property and equipment are as follows:

	Useful Life
Asset Category	(in years)
Laboratory equipment		10
Furniture and office equipment		5 - 10
Computers and hardware		3 - 7
Leasehold improvements		9

Depreciation and amortization expense, including amounts

pertaining to assets held under capital leases, was approximately

$336,000,

$175,000

and 

$84,000

for the years ended

December 31, 2017,

2016

and

2015,

respectively.