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DEBT AND OTHER OBLIGATIONS (Narrative) (Details)
$ in Thousands
12 Months Ended
Sep. 29, 2018
USD ($)
renewal_option
Sep. 30, 2017
USD ($)
Dec. 01, 2013
USD ($)
ft²
Nov. 22, 2013
USD ($)
Debt Instrument [Line Items]        
Area of Land | ft²     198,000  
Percentage Of Building Area Agreed To Lease From Landlord     70.00%  
Financing obligation $ 15,187 $ 16,074 $ 20,000  
K&S Corporate Headquarters [Member]        
Debt Instrument [Line Items]        
Lessee Leasing Arrangements, Capital Leases, Renewal Term 10 years      
Annual Rent and Service Charge Minimum Range $ 4,000      
Annual Rent and Service Charge Maximum Range $ 5,000      
Lessee Leasing Arrangements, Capital Leases, Term of Contract 10 years      
Lessee Leasing Arrangements, Capital Leases, Number of Renewal Options | renewal_option 2      
Capital Lease Obligations, Interest Rate, Effective Percentage 6.30%      
Building [Member]        
Debt Instrument [Line Items]        
Property, Plant and Equipment, Useful Life 25 years      
Citibank [Member]        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity       $ 5,000
Long-term Line of Credit $ 4,000      
Current and Noncurrent Portion [Member]        
Debt Instrument [Line Items]        
Financing obligation $ 16,000