Property and Equipment

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property and Equipment

4. Property and equipment:

Property and equipment, summarized by major category, consist of the following as of December 31:

	2017			2016
Machinery & equipment	$	5,428		$	4,476
Computer equipment & software		399			464
Office furniture & equipment		169			202
Leasehold improvements		44			53
Idle equipment		766			1,486
Total		6,806			6,681
Less accumulated depreciation		(3,028	)		(2,451	)
Total property, plant & equipment, net	$	3,778		$	4,230

Depreciation expense for years ended December 31, 2017, 2016 and 2015 was approximately $0.7 million, $0.4 million and $0.3 million, respectively.