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SHAREHOLDERS' EQUITY AND EMPLOYEE BENEFIT PLANS (Non-employee director stock option activity) (Details) - Non Employee Director [Member] - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Oct. 03, 2015
Sep. 27, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Number of shares, Options outstanding, beginning balance (in shares) 0 20 55  
Number of shares, Exercised (in shares) 0 0 (30)  
Number of shares, Forfeited or expired (in shares) 0 (20) (5)  
Number of shares, Options outstanding, ending balance (in shares) 0 0 20  
Number of shares, Options vested and expected to vest (in shares) 0      
Number of shares, Options exercisable (in shares) 0      
Number of shares, In the money exercisable options (in shares) 0      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]        
Weighted average exercise price, Options outstanding, beginning balance (in dollars per share) $ 0.00 $ 11.20 $ 10.22  
Weighted average exercise price, Exercised (in dollars per share) 0 0.00 10.19  
Weighted average exercise price, Forfeited or expired (in dollars per share) 0.00 11.00 6.48  
Weighted average exercise price, Options outstanding, ending balance (in dollars per share) 0.00 $ 0.00 $ 11.20  
Weighted average exercise price, Options vested and expected to vest (in dollars per share) 0.00      
Weighted average exercise price, Options exercisable (in dollars per share) $ 0.00      
Average remaining contractual life, Options outstanding (in years) 0 years      
Average remaining contractual life, Options vested and expected to vest (in years) 0 years      
Average remaining contractual life, Options exercisable (in years) 0 years      
Aggregate intrinsic value, Options outstanding $ 0 $ 0 $ 225 $ 225
Aggregate intrinsic value, Options vested and expected to vest 0      
Aggregate intrinsic value, In the money exercisable options $ 0