Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT AND COMMON STOCK WARRANT LIABILITY - Senior Secured Notes Narrative (Details)

v3.19.1
LONG-TERM DEBT AND COMMON STOCK WARRANT LIABILITY - Senior Secured Notes Narrative (Details) - USD ($)
12 Months Ended
Feb. 02, 2018
Dec. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]      
Outstanding principal   $ 99,000,000 $ 96,063,000
Loss on extinguishment of debt   2,673,000 0
Senior Secured Notes      
Debt Instrument [Line Items]      
Outstanding principal   99,000,000  
Senior secured notes due 2024 | Senior Secured Notes      
Debt Instrument [Line Items]      
Face amount of senior secured notes $ 100,000,000    
Issue price, percentage 98.00%    
Discount percentage 2.00%    
Outstanding principal   99,000,000 0
Variable rate floor 1.00%    
Periodic payment of principal $ 250,000    
Balloon payment to be paid 94,000,000    
Term Loan | Line of Credit      
Debt Instrument [Line Items]      
Loss on extinguishment of debt 2,700,000    
Term Loan | First Lien Credit Facility | Line of Credit      
Debt Instrument [Line Items]      
Outstanding principal 41,000,000 0 41,063,000
Term Loan | Second Lien Term Loan | Line of Credit      
Debt Instrument [Line Items]      
Outstanding principal $ 55,000,000 $ 0 $ 55,000,000
LIBOR | Senior secured notes due 2024 | Senior Secured Notes      
Debt Instrument [Line Items]      
Applicable margin rate 7.00%