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Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2012

Accrued Liabilities [Abstract]

Accrued liabilities

Accrued liabilities at September 30, 2012, and December 31, 2011, consisted of the following (in thousands):

		September 30,				December 31,
		2012				2011
Accrued compensation and related costs		$	2,017			$	2,027
Accrued inventory costs			3,087				1,417
Accrued contract and other accrued expenses			2,983				2,381
Total accrued liabilities		$	8,087			$	5,825

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Tabular disclosure of the components of accrued liabilities.

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