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Long-term Debt (Details)
$ in Thousands
12 Months Ended
May 29, 2018
USD ($)
Jan. 29, 2016
USD ($)
Dec. 30, 2015
USD ($)
Tranche
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Long-term Debt [Abstract]          
Loss on extinguishment of debt       $ (414) $ 0
MidCap Financial Trust [Member] | Term-Note Credit Facility [Member]          
Long-term Debt [Abstract]          
Maximum borrowing capacity under the agreement       $ 12,000  
Number of tranches | Tranche     2    
Repayment of debt $ (3,000)        
Maturity date       May 31, 2022  
Interest rate on credit facility         9.60%
Credit facility amount outstanding $ 10,571        
Period without debt principal payments due       18 months  
Monthly payment, principal       $ 252  
Percentage of change in cash flows, due to debt modifications 10.00%        
MidCap Financial Trust [Member] | Term-Note Credit Facility [Member] | LIBOR [Member]          
Long-term Debt [Abstract]          
Debt instrument term of variable rate     1 month 1 month  
Debt instrument variable rate     8.25% 7.25%  
MidCap Financial Trust [Member] | Term-Note Credit Facility [Member] | First Tranche [Member]          
Long-term Debt [Abstract]          
Proceeds from credit facility     $ 10,500    
MidCap Financial Trust [Member] | Term-Note Credit Facility [Member] | Second Tranche [Member]          
Long-term Debt [Abstract]          
Proceeds from credit facility   $ 1,500