Note 7 - Property and Equipment

12 Months Ended

Dec. 31, 2017

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

7.

Property and Equipment

Property and equipment is stated at cost and consists of the following:

	December 31,
	2017			2016
Equipment and software	$	37,137		$	27,456
Furniture and fixtures		1,947			1,126
Leasehold improvements		31,459			27,796
Construction in progress		5,830			22,695
Subtotal		76,373			79,073
Less accumulated depreciation		(20,190	)		(26,777	)
Total	$	56,183		$	52,296

Construction-in-progress at

December 31, 2017,

primarily represents the costs incurred for the implementation of a new ERP that was placed in service in

January 2018.

Construction-in-progress at

December 31, 2016

primarily represented the costs being incurred in our strategic project that we began in

2015

to insource the manufacturing of our HYAFF-based products to our Bedford, Massachusetts facility, which was placed in service in

December 2017.

In

2017

we retired

$9.8

million of fully depreciated assets that were

no

longer in use.

Depreciation expense was

$3.3

million,

$2.7

million, and

$2.7

million for the years ended

December 

31,

2017,

2016,

and

2015,

respectively.