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Debt - Additional Information (Details)
Dec. 01, 2020
USD ($)
payment
Apr. 28, 2020
USD ($)
Unsecured Debt | Payment Protection Plan    
Debt Instrument [Line Items]    
Debt, face amount   $ 4,500,000
PNC Bank Facility | Term Loan    
Debt Instrument [Line Items]    
Number of quarterly payments | payment 12  
PNC Bank Facility | Term Loan | Loan Agreement    
Debt Instrument [Line Items]    
Debt, face amount $ 12,500,000  
PNC Bank Facility | Term Loan | LIBOR | Minimum    
Debt Instrument [Line Items]    
Variable basis rate 1.75%  
PNC Bank Facility | Term Loan | LIBOR | Maximum    
Debt Instrument [Line Items]    
Variable basis rate 2.25%  
PNC Bank Facility | Revolving Loan    
Debt Instrument [Line Items]    
Line of credit facility, commitment fee percentage 0.20%  
Termination notice 3 days  
PNC Bank Facility | Revolving Loan | Loan Agreement    
Debt Instrument [Line Items]    
Line of credit facility, maximum borrowing capacity $ 15,000,000  
Draw on line of credit $ 7,600,000  
PNC Bank Facility | Revolving Loan | LIBOR | Minimum    
Debt Instrument [Line Items]    
Variable basis rate 1.75%  
PNC Bank Facility | Revolving Loan | LIBOR | Maximum    
Debt Instrument [Line Items]    
Variable basis rate 2.25%  
PNC Bank Facility | Letter of Credit | Loan Agreement    
Debt Instrument [Line Items]    
Debt, face amount $ 3,000,000