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Inventories (Tables)

12 Months Ended

Dec. 31, 2012

Inventories [Abstract]

Summary of Inventories

Inventory is comprised of the following:

		December 31,
		2012				2011
Component parts		$	6,613			$	6,447
Work-in-process and finished goods			12,062				9,586
Total		$	18,675			$	16,033

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- Definition

Tabular disclosure of inventories.

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