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Property and equipment

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Disclosure [Text Block]

2.	Property and equipment

Property and equipment, which include amounts recorded under capital leases, are stated at cost less accumulated depreciation and amortization (in thousands), and consist of the following:

		December 31,
		2012				2011

Equipment		$	23,798			$	21,833
Software			7,583				6,216
Furniture and office equipment			3,400				2,658
Leasehold improvements			7,362				5,591
Total			42,143				36,298
Less accumulated depreciation and amortization			(31,487	)			(28,868	)

		$	10,656			$	7,430

Depreciation and amortization expense of property and equipment was approximately $3.1 million, $2.8 million and $3.1 million for the years ended December 31, 2012, 2011 and 2010, respectively.

At December 31, 2012 and 2011, equipment under capital leases had a gross cost of approximately $1.6 million. Accumulated depreciation of equipment under capital leases was $1.6 million and $1.5 million for 2012 and 2011, respectively. Amortization of assets under capital leases is included under depreciation and amortization expense.

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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