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DEBT - Narrative (Details)
May 20, 2020
USD ($)
series
Mar. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Debt Instrument [Line Items]      
Gross, long-term debt   $ 73,521,000 $ 73,493,000
Current portion of long-term debt   12,271,000 12,174,000
Non-current portion of long-term debt   61,250,000 61,319,000
Royalty rights obligation      
Debt Instrument [Line Items]      
Gross, long-term debt   $ 2,800,000 2,700,000
Senior Notes | Senior Secured Notes Due 2024      
Debt Instrument [Line Items]      
Interest rate 13.00% 13.00%  
Aggregate principal amount $ 95,000,000    
Number of series issued | series 2    
Interest rate, outstanding principal 10.00%    
Covenant, liquidity ratio quotient 9.5    
Covenant, minimum liquidity ratio, amount $ 7,500,000    
Gross, long-term debt   $ 70,750,000 70,750,000
Current portion of long-term debt   9,500,000 9,500,000
Non-current portion of long-term debt   61,300,000 61,300,000
Senior Notes | Senior Secured Notes Due 2024 | Debt Instrument, Redemption, Period One      
Debt Instrument [Line Items]      
Redemption price, percent 100.00%    
Senior Notes | Senior Secured Notes Due 2024 | Debt Instrument, Redemption, Period Two      
Debt Instrument [Line Items]      
Redemption price, percent 100.00%    
Senior Notes | Secured Notes, Series A-1 Notes      
Debt Instrument [Line Items]      
Aggregate principal amount $ 50,000,000    
Senior Notes | Secured Notes, Series A-2 Notes      
Debt Instrument [Line Items]      
Aggregate principal amount $ 45,000,000    
Senior Notes | Royalty rights obligation      
Debt Instrument [Line Items]      
Gross, long-term debt   $ 2,771,000 $ 2,743,000
Royalty payments, percentage of revenue 1.50%