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DEBT - Additional Information (Detail)
3 Months Ended 9 Months Ended
Mar. 30, 2020
USD ($)
Feb. 28, 2019
USD ($)
$ / shares
Dec. 15, 2017
Dec. 15, 2017
USD ($)
Apr. 30, 2020
USD ($)
Mar. 31, 2018
USD ($)
Apr. 30, 2020
USD ($)
Mar. 29, 2020
USD ($)
Jul. 31, 2019
USD ($)
Debt Instrument [Line Items]                  
Line of credit, current         $ 25,000,000   $ 25,000,000   $ 6,000,000
Redemption price percentage   100.00%              
Carrying amount of equity component         8,200,000   8,200,000   8,200,000
Long-term debt         $ 379,627,000   $ 379,627,000   381,669,000
Debt instrument, interest rate, effective percentage         18.47%   18.47%    
Unused line fee         0.50%   0.50%    
Cerberus Credit Facility                  
Debt Instrument [Line Items]                  
Term loan facility       $ 393,000,000          
Revolving credit facility       $ 25,000,000          
Line of credit facility, term     5 years            
Aggregate amount of each consecutive quarterly scheduled principal installment           $ 1,500,000      
Leverage ratio         350.00%   350.00%    
Periodic principal payment deferral amount $ 3,000,000                
Maximum amount distributed to Company for management fees and tax sharing 5,000,000                
Financing agreement liquidity requirement 14,500,000             $ 15,000,000  
Credit facility, readily available borrowing capacity         $ 0   $ 0    
MidCap Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, term         3 years        
Debt instrument, percentage points added to the reference rate             4.00%    
Line of credit facility, maximum credit commitment         $ 12,500,000.0   $ 12,500,000.0    
Credit facility, readily available borrowing capacity         5,700,000   5,700,000    
Base Rate | Cerberus Credit Facility                  
Debt Instrument [Line Items]                  
Debt instrument, percentage points added to the reference rate     3.75%            
London Interbank Offered Rate (LIBOR) | Cerberus Credit Facility                  
Debt Instrument [Line Items]                  
Debt instrument, percentage points added to the reference rate     6.50%            
Scenario 1 | Cerberus Credit Facility                  
Debt Instrument [Line Items]                  
Excess cash flow payment percentage       50.00%          
Amount of principal payment forgone $ 4,300,000                
Scenario 2 | Cerberus Credit Facility                  
Debt Instrument [Line Items]                  
Excess cash flow payment percentage       25.00%          
Letter of Credit Sublimit | MidCap Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, maximum credit commitment         5,000,000.0   5,000,000.0    
Inventory Sublimit | MidCap Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, maximum credit commitment         4,500,000.0   4,500,000.0    
Line of Credit | Cerberus Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, maximum credit commitment         0   0    
Line of credit, current         25,000,000   25,000,000   6,000,000
SPHG Holdings                  
Debt Instrument [Line Items]                  
Conversion to common stock   $ 1,000              
Debt conversion ratio   421.2655              
Debt conversion price (in usd per share) | $ / shares   $ 2.37              
SPHG Holdings | 7.50% Convertible Senior Debt                  
Debt Instrument [Line Items]                  
Debt instrument, stated interest rate   7.50%              
Principal amount   $ 14,940,000     $ 14,940,000   14,940,000   14,940,000
SPHG Holdings | Convertible Senior Note                  
Debt Instrument [Line Items]                  
Debt instrument amortization period         46 months        
Long-term debt         $ 8,672,000   $ 8,672,000   $ 7,432,000