• Filing Date: 2020-07-09
  • Form Type: 10-Q
  • Description: Quarterly report
v3.20.2
8.50% Senior Unsecured Convertible Notes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 11, 2019
Aug. 28, 2019
Jul. 28, 2017
Jul. 26, 2017
Feb. 21, 2014
May 31, 2020
May 31, 2019
May 31, 2020
May 31, 2019
Apr. 18, 2017
Mar. 14, 2017
Feb. 28, 2014
Debt Instrument [Line Items]                        
Interest paid in kind on 8.5% Senior Secured Notes               $ 0 $ 1,749      
8.5% Convertible Notes                        
Debt Instrument [Line Items]                        
Stated interest rate percentage             8.50%   8.50%      
5.0% Convertible Notes                        
Debt Instrument [Line Items]                        
Stated interest rate percentage           5.00% 5.00% 5.00% 5.00%      
Convertible Notes | 8.5% Convertible Notes                        
Debt Instrument [Line Items]                        
Debt issued       $ 74,200   $ 1,200   $ 1,200       $ 70,700
Stated interest rate percentage           8.50%   8.50%       8.50%
Debt instrument, issuance date         Feb. 21, 2014              
Debt instrument, maturity date               Feb. 15, 2019        
Debt instrument, frequency of periodic payment               semi-annually in arrears on August 15 and February 15 of each year        
Outstanding principal balance     $ 73,000                  
Interest paid in kind on 8.5% Senior Secured Notes     $ 2,800                  
Debt repurchased   $ 1,200                    
Debt accrued and unpaid interest payment   110                    
Debt administrative fees and expenses paid   $ 38                    
Interest expense debt             $ 25   $ 71      
Interest included in interest expense                 51      
Amortization of debt discounts                 18      
Amortization of debt origination costs                 3      
Convertible Notes | Additional 8.50% Convertible Notes                        
Debt Instrument [Line Items]                        
Debt issued                     $ 3,500  
Convertible Notes | 5.0% Convertible Notes                        
Debt Instrument [Line Items]                        
Stated interest rate percentage 5.00%                 5.00%    
Percentage of holders tendering exchange offer, minimum (as percent)       98.00%                
Debt repurchased $ 8,000                      
Debt accrued and unpaid interest payment $ 123                      
Interest expense debt           $ 1,200 1,300 $ 2,300 2,500      
Interest included in interest expense           848 948 1,700 1,900      
Amortization of debt discounts           277 285 494 541      
Amortization of debt origination costs           $ 41 $ 42 $ 73 $ 80