Commitments And Contingencies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]
Rent expense	$ 1,480	$ 1,531	$ 1,497
Initial term	1 year
Remaining rentals payable, 2014	1,284
Remaining rentals payable, 2015	1,296
Remaining rentals payable, 2016	984
Remaining rentals payable, 2017	17
Licensing agreement term	5 years
Royalty expense				1,000
Technology access fee asset	$ 232	$ 380
Minnesota [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of leased facilities	2
Maine [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of leased facilities	1
California [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of leased facilities	1
Singapore [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of leased facilities	1
Indonesia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of leased facilities	1
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of leased facilities	1
Minimum [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Base salary term	7 months
Employment period	1 year
Maximum [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Base salary term	2 years