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Commitments and Contingencies (Details Textual) (USD $)
 12 Months Ended 1 Months Ended 1 Months Ended 1 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
Vasakronan Fastigheter AB, Linnegatan 89D [Member]
sqft
Dec. 31, 2012
Vasakronan Fastigheter AB, Linnegatan 89D [Member]
Month [Member]
Dec. 31, 2012
Vasakronan Fastigheter AB, Linnegatan 89D [Member]
Annual [Member]
Mar. 31, 2012
2350 Mission Investors LLC [Member]
Mar. 22, 2012
2350 Mission Investors LLC [Member]
sqft
Mar. 31, 2012
2350 Mission Investors LLC [Member]
Month [Member]
Mar. 31, 2012
2350 Mission Investors LLC [Member]
Annual [Member]
Apr. 30, 2012
No Picnic [Member]
Apr. 15, 2012
No Picnic [Member]
sqft
Apr. 30, 2012
No Picnic [Member]
Month [Member]
Apr. 30, 2012
No Picnic [Member]
Annual [Member]
Commitments and Contingencies (Textual)                            
Area of leased space (in square feet)       2,723       3,185       2,853    
Initial lease payment (including property tax and excluding VAT)         $ 8,000 $ 93,000     $ 7,007 $ 86,000     $ 14,000 $ 174,000
Monthly lease payment including property tax (excluding VAT), Net                 7,657          
Operating lease notice period       9 months                    
Lease extended period if not terminated       3 years                    
Lease expiration date       Dec. 31, 2014     Jul. 13, 2015       Apr. 15, 2013      
Operating leases period             3 years              
Rent expenses $ 400,000 $ 167,000 $ 103,000