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Organization and Business Operations (Details Narrative) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jun. 30, 2016
Jun. 30, 2016
Nov. 30, 2014
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2007
Revenue       $ 4,000 $ 8,900 $ 3,400  
Research and development grant       $ 5,347 $ 3,036 5,041  
Issuance of common stock in a private placements           $ 9,100  
Proceeds from issuance of common stock     $ 34,200        
Right Offering [Member]              
Proceeds from issuance of common stock $ 19,500 $ 19,500          
Second Sight (Switzerland) Sarl [Member]              
Ownership percentage by parent       99.50%     100.00%
Second Sight (Switzerland) Sarl [Member] | Executive Officer [Member]              
Ownership percentage by noncontrolling interest       0.50%