XML 47 R36.htm IDEA: XBRL DOCUMENT v3.22.2
Basis of Presentation (Details)
6 Months Ended
Mar. 29, 2022
USD ($)
employee
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
May 10, 2022
USD ($)
Apr. 25, 2022
USD ($)
Apr. 15, 2022
USD ($)
$ / shares
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Oct. 20, 2017
USD ($)
Cash flows from operations   $ (49,389,000) $ (16,081,000)            
Accumulated deficit   (356,890,000)         $ (332,954,000)    
Working capital   (77,200,000)              
Severance and related costs $ 3,800,000 3,800,000              
Reduction in number of employees | employee 150                
Decrease in annual operating costs $ 13,100,000                
Warrants outstanding   $ 8,447,000         $ 17,821,000    
Revolving Credit Facility                  
Revolving credit facility permanently reduced portion           $ 10,600,000      
Maximum borrowing capacity       $ 45,000,000.0 $ 50,000,000.0 $ 15,000,000.0   $ 30,000,000.0 $ 30,000,000.0
Revolving Credit Facility | H P S Investment Partners LLC                  
Exercise price of warrant | $ / shares           $ 0.0001      
Warrants outstanding           $ 11,416,700