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Subsequent Events (Details) - USD ($)
$ in Thousands
Jan. 31, 2022
Nov. 01, 2021
Apr. 22, 2020
Dec. 31, 2021
May 25, 2021
May 24, 2021
May 14, 2021
Mar. 31, 2021
Dec. 31, 2020
Line of Credit                  
Subsequent Event [Line Items]                  
Cash and cash availability streamline threshold       $ 8,000 $ 8,000 $ 7,000   $ 6,000 $ 7,000
Cash and cash availability EBITDA covenant threshold             $ 5,000    
Minimum | All Other Times | Line of Credit                  
Subsequent Event [Line Items]                  
Interest rate       0.0125%          
Minimum | Prime Rate | Streamline Period In Effect | Line of Credit                  
Subsequent Event [Line Items]                  
Interest rate       0.0075%          
Minimum | Term Note Payable to SVB | Prime Rate                  
Subsequent Event [Line Items]                  
Debt instrument, basis spread on variable rate   0.035% 0.045%            
Maximum | All Other Times | Line of Credit                  
Subsequent Event [Line Items]                  
Interest rate       0.06%          
Maximum | Prime Rate | Streamline Period In Effect | Line of Credit                  
Subsequent Event [Line Items]                  
Interest rate       0.055%          
Maximum | Term Note Payable to SVB | Prime Rate                  
Subsequent Event [Line Items]                  
Debt instrument, basis spread on variable rate   0.065% 0.075%            
Subsequent Event | Line of Credit                  
Subsequent Event [Line Items]                  
Cash and cash availability streamline threshold $ 50,000                
Cash and cash availability EBITDA covenant threshold $ 30,000                
Subsequent Event | Minimum | All Other Times | Line of Credit                  
Subsequent Event [Line Items]                  
Interest rate 1.25%                
Subsequent Event | Minimum | Prime Rate | Streamline Period In Effect | Line of Credit                  
Subsequent Event [Line Items]                  
Interest rate 0.75%                
Subsequent Event | Minimum | Term Note Payable to SVB | Prime Rate                  
Subsequent Event [Line Items]                  
Debt instrument, basis spread on variable rate 2.50%                
Subsequent Event | Maximum | All Other Times | Line of Credit                  
Subsequent Event [Line Items]                  
Interest rate 5.00%                
Subsequent Event | Maximum | Prime Rate | Streamline Period In Effect | Line of Credit                  
Subsequent Event [Line Items]                  
Interest rate 5.00%                
Subsequent Event | Maximum | Term Note Payable to SVB | Prime Rate                  
Subsequent Event [Line Items]                  
Debt instrument, basis spread on variable rate 5.75%