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Commitments and Contingencies (Details) - USD ($)
Jun. 10, 2016
Jun. 30, 2016
New Lease    
Future minimum lease payments    
Remainder of 2016   $ 112,000
2017   380,000
2018   392,000
2019   403,000
2020   416,000
Thereafter   1,070,000
Total lease payments   2,773,000
Lease term 7 years  
Gateway Sublease Termination Agreement    
Future minimum lease payments    
Termination fee $ 0  
Lease payments guarantee    
Future minimum lease payments    
Total lease payments   24,700,000
Estimated fair value of the guarantee   $ 1,300,000