Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Additional Information (Detail)

v3.21.2
Long-Term Debt - Additional Information (Detail)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
USD ($)
$ / shares
Feb. 02, 2021
USD ($)
Jul. 13, 2020
USD ($)
Dec. 29, 2019
Sep. 30, 2019
USD ($)
May 02, 2019
USD ($)
$ / shares
shares
Mar. 18, 2019
USD ($)
$ / shares
shares
Feb. 05, 2019
USD ($)
May 14, 2018
USD ($)
$ / shares
Jun. 30, 2021
USD ($)
$ / shares
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
$ / shares
Jun. 30, 2020
USD ($)
Apr. 04, 2021
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
$ / shares
Dec. 20, 2019
USD ($)
Jun. 30, 2019
Debt Instrument [Line Items]                                    
Interest expense                   $ 400 $ 400 $ 800 $ 800          
Accretion expense                   2,664 4,113 7,516 8,117          
Long term debt default amount principal $ 97,500                 97,500   97,500            
Secured debt long term fair value 222,600                 222,600   222,600       $ 189,363    
Unamortized debt issuance costs $ 3,100                 $ 3,100   $ 3,100       $ 3,500    
Class of warrants or rights exercise price per share | $ / shares $ 3.49                 $ 3.49   $ 3.49       $ 4.06    
Cash balance $ 18,171                 $ 18,171   $ 18,171       $ 11,015    
Payment In Kind [Member]                                    
Debt Instrument [Line Items]                                    
Percentage of total interest that can be paid through cash or in kind route             50.00%                      
Private Placement [Member] | March 2019 Equity Warrants [Member]                                    
Debt Instrument [Line Items]                                    
Interest rate on secured notes 8.00%                 8.00%   8.00%            
Debt instrument terms of interest payment             payable quarterly                      
Class of warrants or rights number of shares covered by warrants or rights | shares             2,177,291                      
Class of warrants or rights exercise price per share | $ / shares             $ 6.43                      
Class of warrant or rights expiry date           Mar. 15, 2022                        
Private Placement [Member] | May 2019 Equity Warrants [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument maturity date           Mar. 15, 2023                        
Debt instrument terms of interest payment           payable quarterly                        
Class of warrants or rights number of shares covered by warrants or rights | shares           1,555,207                        
Class of warrants or rights exercise price per share | $ / shares           $ 6.43                        
Private Placement [Member] | In Cash [Member] | March 2019 Equity Warrants [Member]                                    
Debt Instrument [Line Items]                                    
Percentage of total interest that can be paid through cash or in kind route             50.00%                      
Private Placement [Member] | Payment In Kind [Member] | March 2019 Equity Warrants [Member]                                    
Debt Instrument [Line Items]                                    
Percentage of total interest that can be paid through cash or in kind route             50.00%                      
I Anthus New Jersey LLC [Member]                                    
Debt Instrument [Line Items]                                    
Description about qualified financing                       “Qualified Financing” means a transaction or series of related transactions resulting in net proceeds to the Company of not less than $10 million from the subscription of the Company’s securities, including, but not limited to, a private placement or rights offering.            
Threshold limit of qualified financing, net proceeds not less than the subscription of securities                       $ 10,000            
Secured Debt [Member]                                    
Debt Instrument [Line Items]                                    
Long term debt exit fee payable $ 10,000                 $ 10,000   10,000            
Secured Debt [Member] | Tranche One [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument face value                 $ 40,000                  
Debt instrument maturity date                 May 14, 2021                  
Interest rate on secured notes                 16.00%                  
Debt instrument conversion price per share | $ / shares                 $ 3.08                  
Debt instrument beneficial conversion feature 7,900                                  
Interest expense                   1,700 1,700 3,300 3,000          
Accretion expense                   1,100 2,100 3,400 4,100          
Long term debt default amount principal                     10,300   10,300 $ 60,000 $ 97,500      
Long term debt default amount accrued interest                     2,600   2,600 $ 7,200 $ 22,900      
Long term debt exit fee payable principal and interest 14,600                 14,600 12,900 14,600 12,900          
Long term debt exit fee payable 10,300                 10,300 10,300 10,300 10,300          
Interest expenses incurred on exit fees                   4,300 2,600              
Interest payable on exit fee $ 4,300                 $ 4,300 2,600 $ 4,300 2,600          
Debt instrument financial covenant description                       The terms also contain a financial covenant requiring the Company’s asset value to be 1.75 times the total net debt at each quarter end and maintain a minimum cash balance of $1.0 million while the Tranche One Secured Notes remain outstanding (the “market value test”).            
Financial covenant requires to maintain ratio of asset value to net debt 1.75                 1.75   1.75            
Cash balance $ 1,000                 $ 1,000   $ 1,000            
Secured Debt [Member] | Tranche One [Member] | Accretion Expense [Member]                                    
Debt Instrument [Line Items]                                    
Amortization of debt discount                   300 700 1,000 1,300          
Secured Debt [Member] | Tranche Two [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument face value         $ 20,000                          
Debt instrument maturity date         May 14, 2021                          
Interest rate on secured notes         13.00%                          
Interest expense                   800 800 1,600 1,500          
Accretion expense                   200 400 700 900          
Secured Debt [Member] | Tranche Three [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument face value                                 $ 36,200  
Debt instrument maturity date       May 14, 2021                            
Interest rate on secured notes                                 13.00%  
Interest expense                   1,500 1,500 2,900 2,600          
Accretion expense                   500 1,000          
Secured Debt [Member] | Tranche Four [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument face value     $ 14,700                              
Debt instrument maturity date     Jul. 13, 2025                              
Interest expense                   300 0 600 0          
Accretion expense                   100 0 200 0          
Debt instrument original issue discount percentage     8.00%                              
Escrow deposit 0                 0   0       400    
New Jersey Senior Secured Bridge Notes [Member] | I Anthus New Jersey LLC [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument face value   $ 11,000                                
Debt instrument maturity date   Feb. 02, 2023                                
Interest rate on secured notes   14.00%                                
Interest expense                   400 0 600 0          
Accretion expense                   100 $ 0 100 $ 0          
Secured debt long term fair value   $ 10,300                                
Unamortized debt issuance costs   $ 700                                
Escrow deposit $ 5,700                 5,700   5,700       $ 0    
New Jersey Senior Secured Bridge Notes [Member] | Prospective Recapitalization Transaction [Member] | I Anthus New Jersey LLC [Member]                                    
Debt Instrument [Line Items]                                    
Interest rate on secured notes   8.00%                                
New Jersey Senior Secured Bridge Notes [Member] | Prospective Default [Member] | I Anthus New Jersey LLC [Member]                                    
Debt Instrument [Line Items]                                    
Interest rate on secured notes   25.00%                                
March 2019 Debentures [Member] | Private Placement [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument face value             $ 35,000                      
Debt instrument maturity date             Mar. 15, 2023                      
Interest rate on secured notes                     8.00%   8.00%         8.00%
Interest expense                   700 $ 700 1,400 $ 1,400          
Accretion expense                   $ 400 $ 300 $ 700 $ 700          
March 2019 Debentures [Member] | Private Placement [Member] | In Cash [Member]                                    
Debt Instrument [Line Items]                                    
Percentage of total interest that can be paid through cash or in kind route             50.00%                      
May 2019 Debentures [Member] | Private Placement [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument face value           $ 25,000                        
Interest rate on secured notes 8.00%                 8.00% 8.00% 8.00% 8.00%          
Interest expense                   $ 500 $ 200 $ 1,000 $ 1,000          
Accretion expense                   $ 200   $ 400 $ 400          
May 2019 Debentures [Member] | Private Placement [Member] | Payment In Kind [Member]                                    
Debt Instrument [Line Items]                                    
Percentage of total interest that can be paid through cash or in kind route             50.00%                      
Stavola Trust Note [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument maturity date               Jan. 19, 2020                    
Business combination liablity assumed non current debt               $ 10,800                    
Related party transaction rate of interest               8.00%