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13. Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Commitments And Contingencies Details
Warranties, Beginning	$ 247	$ 266	$ 228
Warranties Issued	267	247	263
Warranties Settled	(247)	(266)	(225)
Warranties, Ending	$ 267	$ 247	$ 266

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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