Assets Manufactured for Internal Use

12 Months Ended

Dec. 31, 2012

Assets Manufactured for Internal Use

Assets Manufactured for Internal Use

Note 8.  Assets Manufactured for Internal Use

        The components of assets manufactured for internal use, included in amounts reported as other assets, are as follows:

	December 31,
	2012			2011
	(in thousands)
Internal use assets	$	21,904		$	27,503
Construction in progress		1,823			—
Total cost		23,727			27,503
Accumulated depreciation		(13,948	)		(10,526	)
	$	9,779		$	16,977

        These products are used in-house for research and development, training, and customer demonstration purposes. Costs are generally depreciated to expense over five years. Depreciation expense was $3.4 million, $4.9 million, and $3.3 million, for the years ended December 31, 2012, 2011, and 2010, respectively.