Annual report pursuant to Section 13 and 15(d)

Restricted Cash - Summary (Details)

v3.19.3.a.u2
Restricted Cash - Summary (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Oct. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Aug. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Restricted Cash            
Restricted cash   $ 3,400 $ 900      
Restricted cash, current portion   290 638   $ 193  
Restricted cash, long-term   3,086 $ 290   $ 290 $ 483
Operating Lease, January 2019            
Restricted Cash            
Letter of credit outstanding   $ 3,100        
Letter of credit expiration period   95 days        
Operating Lease, October 2023            
Restricted Cash            
Expected letter of credit amount   $ 2,100        
Manufacturing Agreement, August 2018            
Restricted Cash            
Letter of credit outstanding       $ 600    
Repayment of letter of credit $ 600