Property, plant and equipment:

12 Months Ended

Dec. 31, 2012

9. Property, plant and equipment:

December 31, 2012	Cost		Accumulated amortization		Net book value

Land and buildings	$	575	$	64	$	511
Computer equipment and software	11,529		8,140		3,389
Furniture and fixtures	4,032		1,913		2,119
Machinery and equipment	80,667		34,219		46,448
Leasehold improvements	15,602		9,875		5,727

	$	112,405	$	54,211	$	58,194

December 31, 2011	Cost		Accumulated amortization		Net book value

Land and buildings	$	668	$	124	$	544
Computer equipment and software	8,903		7,246		1,657
Furniture and fixtures	2,072		1,602		470
Machinery and equipment	54,156		27,288		26,868
Leasehold improvements	14,930		9,061		5,869

	$	80,729	$	45,321	$	35,408

As at December 31, 2012, equipment with a cost of $16,532 (December 31, 2011 - $15,448) and a net book value of $2,587 (December 31, 2011 - $3,662) is held under capital lease.

Depreciation expense for the year ended December 31, 2012 was $8,131 (nine months ended December 31, 2011 - $4,394; year ended March 31, 2011 - $2,783).

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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