Quarterly report pursuant to Section 13 or 15(d)

Preferred Stock - Summary of Convertible Preferred Stock (Details)

v3.20.1
Preferred Stock - Summary of Convertible Preferred Stock (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended
Jan. 31, 2019
Mar. 31, 2019
Temporary Equity [Line Items]    
Exchange, including deemed dividend $ 5,326  
Series A Preferred    
Temporary Equity [Line Items]    
Beginning balance $ 12,575 $ 12,575
Beginning balance, Shares 3,146,551 3,146,551
Ending balance   $ 12,575
Ending balance, Shares   3,146,551
Series A-1 Preferred    
Temporary Equity [Line Items]    
Beginning balance $ 24,994 $ 24,994
Beginning balance, Shares 7,372,719 7,372,719
Ending balance   $ 24,994
Ending balance, Shares   7,372,719
Series A-2 Preferred    
Temporary Equity [Line Items]    
Beginning balance $ 6,352 $ 6,352
Beginning balance, Shares 1,873,777 1,873,777
Exchange, including deemed dividend $ 4,764 $ (4,764)
Exchange, including deemed dividend, Shares (1,405,332) (1,405,332)
Ending balance   $ 1,588
Ending balance, Shares   468,445
Series B Preferred Stock    
Temporary Equity [Line Items]    
Issuance   $ 50,000
Issuance, shares 6,963,788 6,963,788
Exchange, including deemed dividend $ 10,090 $ 10,090
Exchange, including deemed dividend, Shares 1,405,332 1,405,332
Issuance costs   $ (1,293)
Ending balance   $ 58,797
Ending balance, Shares   8,369,120
Convertible Preferred Stock    
Temporary Equity [Line Items]    
Beginning balance $ 43,921 $ 43,921
Beginning balance, Shares 12,393,047 12,393,047
Issuance   $ 50,000
Issuance, shares   6,963,788
Exchange, including deemed dividend   $ 5,326
Issuance costs   (1,293)
Ending balance   $ 97,954
Ending balance, Shares   19,356,835