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Debt (Details) - USD ($)
3 Months Ended
Jul. 26, 2022
Jul. 31, 2022
Debt (Details) [Line Items]    
Debt Issuance Costs, Line of Credit Arrangements, Gross $ 37,500 $ 37,500
Line of Credit Facility, Covenant Terms ● Maintain a ratio of funded debt to EBITDA not exceeding:   o 2.50:1.0 through July 30, 2023;   o 2.25:1.0 through July 30, 2024; and   o 2.00:1.00 thereafter.  The other financial covenants under the Existing Loan Agreement continue to apply to us, including a basic fixed charge coverage ratio of at least 1.25:1.00 and limit capital expenditures to no more than $15.0 million during any fiscal year.  
Proceeds from Long-Term Lines of Credit   30,300,000
Line of Credit Facility, Current Borrowing Capacity   27,900,000
Letters of Credit Outstanding, Amount   7,100,000
2022 Secured Term Loan [Member]    
Debt (Details) [Line Items]    
Debt Instrument, Face Amount $ 18,000,000  
2022 Secured Term Loan [Member] | Bloomberg Short-Term Bank Yield Index ("BSBY") [Member]    
Debt (Details) [Line Items]    
Debt Instrument, Basis Spread on Variable Rate 0.90%  
2022 Unsecured Term Loan [Member]    
Debt (Details) [Line Items]    
Debt Instrument, Face Amount $ 7,000,000  
Debt Instrument, Periodic Payment $ 116,667  
2022 Unsecured Term Loan [Member] | Bloomberg Short-Term Bank Yield Index ("BSBY") [Member]    
Debt (Details) [Line Items]    
Debt Instrument, Basis Spread on Variable Rate 1.40%  
Line of Credit [Member]    
Debt (Details) [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity $ 35,000,000 $ 35,000,000
Debt Instrument, Basis Spread on Variable Rate 1.00%  
Line of Credit [Member] | Bloomberg Short-Term Bank Yield Index ("BSBY") [Member]    
Debt (Details) [Line Items]    
Line of Credit Facility, Commitment Fee Percentage 1.00%