9. Other Expense, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Other Expense Net Details
Interest income	$ 10		$ 35
Interest expense	(196)	(433)	(378)	(1,545)
Realized and unrealized net gain on fair value instruments				199
Foreign currency		39	(2)	(1)
Other	330	(113)	330	41
Total other expense, net	$ 144	$ (507)	$ (15)	$ (1,306)