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Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2012

Accrued Liabilities [Abstract]

Components of accrued liabilities

The components of accrued liabilities are summarized below (in thousands):

	As of December 31,
	2012	2011
Accrued compensation and related charges	$    2,066	$    1,807
Current portion of royalty payments	800	1,375
Accrued income taxes	640	306
Accrued professional services	609	650
Accrued product warranty	588	1,003
Loan commitment for related party notes receivable	—	868
Other accrued liabilities	2,499	1,588
	$   7,202	$   7,597

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Tabular disclosure of the components of accrued liabilities.

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