Restructuring (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of activity relating to Company's accrued restructuring
Original Charges	$ 15	$ 1,226	$ 510
Adjustment	15	80
Charges to date		1,226
Amounts Paid	(678)	(551)
Foreign Currency Adjustment	10	(22)
Amount Accrued		653
G&A [Member]
Schedule of activity relating to Company's accrued restructuring
Original Charges		425
Adjustment	20	80
Charges to date		505
Amounts Paid	(152)	(373)
Amount Accrued		132
R&D [Member]
Schedule of activity relating to Company's accrued restructuring
Original Charges		721
Adjustment	(5)
Charges to date		721
Amounts Paid	(526)	(178)
Foreign Currency Adjustment	10	(22)
Amount Accrued		$ 521