Annual report pursuant to Section 13 and 15(d)

Stockholders' deficit, Incentive Award Plan (Details)

v3.20.1
Stockholders' deficit, Incentive Award Plan (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 19, 2019
May 06, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 20, 2019
Nov. 11, 2019
Stock Options [Abstract]            
Shares granted (in shares)     2,503,371      
Shares granted, exercise price (in dollars per share)     $ 1.83      
Accelerated vesting expense   $ 2,200        
Shares acquired (in shares)     5,250,000      
Shares acquired, exercise price (in dollars per share)     $ 1.82      
Option outstanding (in shares)     7,791,833 38,462    
Shares vested (in shares)     2,716,791 38,462    
Stock Options [Member]            
Stock Options [Abstract]            
Shares granted (in shares)       38,462    
Shares granted, exercise price (in dollars per share)       $ 6.76    
Accelerated vesting expense       $ 100    
2019 Incentive Award Plan [Member]            
Stock Options [Abstract]            
Authorized issuance shares of common stock (in shares)     6,000,000      
Percent of common stock outstanding     10.00%      
Option outstanding (in shares)     7,753,371 164,356    
2019 Incentive Award Plan [Member] | Stock Options [Member]            
Stock Options [Abstract]            
Shares granted (in shares)   2,503,371        
Option outstanding (in shares)       164,356    
Shares vested (in shares)     912,917      
2019 Incentive Award Plan [Member] | Stock Options [Member] | Management [Member]            
Stock Options [Abstract]            
Shares acquired (in shares)   5,250,000        
Shares acquired, exercise price (in dollars per share)   $ 5.00        
Award monthly vesting percentage   4.167%        
Amended and Restated Incentive Award Plan 2019 [Member]            
Stock Options [Abstract]            
Number of awards available for issuance (in shares)         9,000,000 6,000,000
Exercise price of options, lower (in dollars per share) $ 1.82          
Increase in fair value of vested options $ 600          
Increase in fair value of unvested options $ 800