Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Narrative) (Details)

v3.7.0.1
Commitments and Contingencies (Narrative) (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2016
Dec. 31, 2015
Other Commitments [Line Items]      
Rent expense   $ 300 $ 700
San Francisco Lease [Member]      
Other Commitments [Line Items]      
Deferred rent     $ 311
Expiration date Mar. 01, 2017    
Period after which lessee have option to terminate lease   36 months  
Term of new lease   1 year  
Additional term of new lease   1 year