PROPERTY AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2012

PROPERTY AND EQUIPMENT

Schedule of components of property and equipment

	2012
	Cost		Accumulated amortization		Net book value
Furniture and fixtures	$	4,557	$	3,755	$	802
Research and development equipment	21,875		16,504		5,371
Tooling	25,000		17,577		7,423
Computer equipment	7,614		6,048		1,566
Software	9,358		7,863		1,495
Leasehold improvements	4,973		3,070		1,903
Leased vehicles	1,206		587		619
Office equipment	3,144		2,284		860
	$	77,727	$	57,688	$	20,039

	2011
	Cost		Accumulated amortization		Net book value
Furniture and fixtures	$	4,799	$	3,856	$	943
Research and development equipment	37,106		29,204		7,902
Tooling	44,149		37,298		6,851
Computer equipment	8,390		6,764		1,626
Software	9,352		7,338		2,014
Leasehold improvements	5,141		3,955		1,186
Leased vehicles	1,126		546		580
Office equipment	3,076		2,091		985
	$	113,139	$	91,052	$	22,087