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Note G - Debt (Details Textual)
3 Months Ended 9 Months Ended 12 Months Ended
Jul. 22, 2022
Jun. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Jan. 27, 2021
USD ($)
Apr. 17, 2020
USD ($)
Jan. 28, 2020
USD ($)
Mar. 04, 2019
USD ($)
Jun. 30, 2020
USD ($)
Dec. 25, 2020
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
Jun. 30, 2019
USD ($)
Mar. 25, 2022
USD ($)
Feb. 28, 2022
USD ($)
Feb. 07, 2022
USD ($)
Sep. 29, 2021
USD ($)
Jan. 26, 2021
USD ($)
Sep. 25, 2020
Jul. 22, 2020
USD ($)
Mar. 27, 2020
Dec. 27, 2019
Dec. 26, 2019
Mar. 03, 2019
USD ($)
Jun. 29, 2018
USD ($)
Proceeds from Sale of Property, Plant, and Equipment, Total                   $ 9,455,000 $ 102,000                            
Gain (Loss) on Extinguishment of Debt, Total                   0 8,200,000                            
Proceeds from Sale Leaseback Agreement                         $ 329,000                        
Principal Paid on Sale Leaseback Liabilities                   91,000                              
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Bank of Montreal [Member]                                                  
Derivative, Notional Amount   $ 13,500,000               13,500,000                              
Manufacturing Facility [Member]                                                  
Proceeds from Sale of Property, Plant, and Equipment, Total     $ 10,000,000                                            
Proceeds from Sale of Property, Plant, and Equipment, Net     8,700,000                                            
Maximum [Member]                                                  
Sale Leaseback Transactions, Term (Year)                         5 years                        
Sale Leaseback Transactions, Implied Interest Rate                         25.00%                        
Minimum [Member]                                                  
Sale Leaseback Transactions, Term (Year)                         3 years                        
Sale Leaseback Transactions, Implied Interest Rate                         7.00%                        
Line of Credit [Member]                                                  
Line of Credit Facility, Maximum Borrowing Capacity   $ 1,049,000               $ 1,049,000 $ 1,535,000                            
Debt, Weighted Average Interest Rate   5.70%               5.70% 5.60%                            
The Amended and Restated Forbearance Agreement [Member]                                                  
Repayments of Long-Term Debt, Total     7,000,000                                            
The Amended and Restated Forbearance Agreement [Member] | Term Loan [Member]                                                  
Debt Agreement, Maximum Borrowing Capacity     30,000,000                           $ 35,000,000                
Repayments of Long-Term Debt, Total     $ 1,000,000                                            
Debt Agreement, Maximum Borrowing Capacity, Percentage of Eligible Inventory Value     50.00%                           50.00%                
The Second Amended and Restated Forbearance Agreement [Member] | Term Loan [Member]                                                  
Debt Agreement, Maximum Borrowing Capacity, Percentage of Eligible Inventory Value                             50.00%                    
The Second Amended and Restated Forbearance Agreement [Member] | Maximum [Member] | Term Loan [Member]                                                  
Debt Agreement, Maximum Borrowing Capacity                             $ 35,000,000                    
The Second Amended and Restated Forbearance Agreement [Member] | Minimum [Member] | Term Loan [Member]                                                  
Debt Agreement, Maximum Borrowing Capacity                             30,000,000                    
The Ninth Amendment [Member] | Term Loan [Member]                                                  
Debt Agreement, Maximum Borrowing Capacity   $ 20,000,000               $ 20,000,000                              
Paycheck Protection Program CARES Act [Member] | Promissory Note [Member]                                                  
Proceeds from Issuance of Long-term Debt, Total         $ 8,200,000                                        
Gain (Loss) on Extinguishment of Debt, Total                     $ 8,200,000                            
BMO [Member] | The 2018 Credit Agreement [Member]                                                  
Debt Instrument, Percentage of Equity Interest in Domestic Subsidiaries Pledged                                       100.00%          
Debt Instrument, Percentage of Equity Interest in Foreign Subsidiaries Pledged                                       65.00%          
Debt Instrument, Debt Default, Percentage of Letter of Credit Obligations Required to Cash Collateralize                                       105.00%          
BMO [Member] | The 2018 Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Line of Credit Facility, Maximum Borrowing Capacity                                       $ 45,000,000.0         $ 50,000,000.0
BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member]                                                  
Debt Agreement, Maximum Borrowing Capacity             $ 20,000,000.0                                 $ 35,000,000.0  
Long-Term Debt, Gross                                               10,800,000  
Proceeds from Issuance of Debt             9,200,000                                    
Debt Instrument, Periodic Payment, Total             $ 500,000                                    
Debt Instrument, Covenant, Funded Debt to EBITDA Ratio             3.00                                    
Debt Instrument, Covenant, Minimum Tangible Net Worth Plus Half of Net Income             $ 100,000,000.0                                 $ 70,000,000.0  
Debt Instrument, Interest Rate During Period                   4.10%                              
BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate             3.00%                                    
BMO [Member] | The 2018 Credit Agreement [Member] | Maximum [Member]                                                  
Debt Instrument, Covenant, Maximum Capital Expenditures                     10,000,000.0                            
BMO [Member] | The 2018 Credit Agreement [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate           3.375%                                      
BMO [Member] | The 2018 Credit Agreement [Member] | Maximum [Member] | Term Loan [Member]                                                  
Debt Instrument, Covenant, Funded Debt to EBITDA Ratio                                               3.25  
BMO [Member] | The 2018 Credit Agreement [Member] | Maximum [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate 3.875%           2.375%                                    
BMO [Member] | The 2018 Credit Agreement [Member] | Maximum [Member] | Commitment Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate 0.20%                                                
BMO [Member] | The 2018 Credit Agreement [Member] | Minimum [Member]                                                  
Liquidity   15,000,000.0               $ 15,000,000.0                              
EBITDA               $ 1,000,000.0 $ 2,500,000   $ 10,000,000.0 $ 6,000,000.0                          
BMO [Member] | The 2018 Credit Agreement [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate           1.25%                                      
BMO [Member] | The 2018 Credit Agreement [Member] | Minimum [Member] | Term Loan [Member]                                                  
Debt Instrument, Covenant, Funded Debt to EBITDA Ratio                                               3.50  
BMO [Member] | The 2018 Credit Agreement [Member] | Minimum [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate             1.375%                                    
BMO [Member] | The 2018 Credit Agreement [Member] | Revolving Credit Facility [Member]                                                  
Debt Agreement, Maximum Borrowing Capacity                                                 35,000,000.0
Line of Credit Facility, Maximum Borrowing Capacity                           $ 40,000,000                     $ 50,000,000.0
Debt Instrument, Interest Rate During Period                   4.23%                              
Line of Credit Facility, Current Borrowing Capacity   40,662,000               $ 40,662,000                              
Line of Credit Facility, Remaining Borrowing Capacity   17,032,000               17,032,000                              
BMO [Member] | The 2018 Credit Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member]                                                  
Debt Instrument, Covenant, Maximum Cash Dividends   3,000,000.0               3,000,000.0                              
BMO [Member] | The 2018 Credit Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate 3.25%                                                
BMO [Member] | The 2018 Credit Agreement Amendment [Member]                                                  
Debt Instrument, Covenant, Maximum Allowable Extraordinary Expenses           $ 3,900,000                                      
BMO [Member] | The 2018 Credit Agreement Amendment [Member] | Revolving Credit Facility [Member] | Maximum [Member]                                                  
Debt Instrument, Covenant, Allowable Ratio, Current Quarter               4.00 3.00                   3.50   5.00 4.00 3.00    
BMO [Member] | Forbearance Agreement [Member]                                                  
Line of Credit Facility, Maximum Borrowing Capacity       $ 42,500,000                           $ 45,000,000.0              
BMO [Member] | Forbearance Agreement [Member] | Maximum [Member] | Unused Revolving Credit Commitment [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate       20.00%                                          
BMO [Member] | Forbearance Agreement [Member] | Minimum [Member]                                                  
EBITDA                 $ 2,500,000                                
BMO [Member] | Forbearance Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate       3.25%                                          
BMO [Member] | The Amended and Restated Forbearance Agreement [Member]                                                  
Line of Credit Facility, Maximum Borrowing Capacity     $ 40,000,000                           $ 42,500,000                
BMO [Member] | The Second Amended and Restated Forbearance Agreement [Member]                                                  
Line of Credit Facility, Maximum Borrowing Capacity                             $ 40,000,000 $ 42,500,000                  
BMO [Member] | The Ninth Amendment [Member] | Term Loan [Member]                                                  
Debt Instrument, Covenant, Minimum Tangible Net Worth Plus Half of Net Income   $ 100,000,000               100,000,000                              
BMO [Member] | The Ninth Amendment [Member] | Maximum [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate   2.875%   3.875%                                          
BMO [Member] | The Ninth Amendment [Member] | Maximum [Member] | Unused Revolving Credit Commitment [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate   15.00%                                              
BMO [Member] | The Ninth Amendment [Member] | Minimum [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate   1.375%                                              
BMO [Member] | The Ninth Amendment [Member] | Minimum [Member] | Unused Revolving Credit Commitment [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate   10.00%                                              
BMO [Member] | The Ninth Amendment [Member] | Revolving Credit Facility [Member]                                                  
Line of Credit Facility, Maximum Borrowing Capacity   $ 40,000,000               $ 40,000,000                              
BMO [Member] | The Ninth Amendment [Member] | Revolving Credit Facility [Member] | Maximum [Member]                                                  
Debt Instrument, Covenant, Allowable Ratio, Current Quarter   3.50               3.50                              
Fixed Charge Coverage Ratio   1.10               1.10                              
BMO [Member] | The Ninth Amendment [Member] | Revolving Credit Facility [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate   2.75%                                              
BMO [Member] | The Ninth Amendment [Member] | Revolving Credit Facility [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate   1.25%                                              
BMO [Member] | The Ninth Amendment [Member] | Letter of Credit [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate   2.75%                                              
BMO [Member] | The Ninth Amendment [Member] | Letter of Credit [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]                                                  
Debt Instrument, Basis Spread on Variable Rate   1.25%