Quarterly report pursuant to Section 13 or 15(d)

Revolving Credit Facility and Other Obligations (Details)

v3.21.1
Revolving Credit Facility and Other Obligations (Details)
Jun. 11, 2020
USD ($)
borrowing
Apr. 21, 2020
USD ($)
payment
Mar. 31, 2021
USD ($)
Dec. 31, 2020
Nov. 19, 2020
USD ($)
Jul. 11, 2017
USD ($)
Revolving credit facility | Bank of America Credit Agreement            
Long-term debt            
Maximum borrowing capacity           $ 25,000,000.0
Potential increase in maximum borrowing capacity $ 15,000,000.0          
Number of separate increases | borrowing 3          
Potential increase in maximum borrowing capacity, per occurrence $ 5,000,000.0          
Annual commitment fee 0.25%          
Long-term line of credit     $ 0      
Revolving credit facility | LIBOR | Bank of America Credit Agreement            
Long-term debt            
Margin on variable rate 2.25%          
Effective interest rate     2.36% 3.00%    
Revolving credit facility | LIBOR | Bank of America Credit Agreement | Minimum            
Long-term debt            
Margin on variable rate 0.75%          
Line of Credit | Banc of America Leasing and Capital Credit Agreement            
Long-term debt            
Maximum borrowing capacity   $ 6,000,000.0        
Long-term line of credit     $ 3,300,000   $ 3,700,000  
Number of monthly payments | payment   36        
Periodic payment   $ 100,000        
Line of credit, current     $ 1,200,000      
Line of Credit | Indicative Index | Banc of America Leasing and Capital Credit Agreement            
Long-term debt            
Effective interest rate     3.00%