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SHAREHOLDERS' EQUITY AND EMPLOYEE BENEFIT PLANS (Employee performance-based and special growth restricted stock activity) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Oct. 03, 2015
Performance based Restricted stock      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Number of shares, Restricted stock outstanding, beginning balance (in shares) 0    
Number of shares, Granted (in shares)   0  
Number of shares, Restricted stock outstanding, ending balance (in shares)   0 57
Unrecognized compensation expense   $ 0 $ 285
Average remaining service period (in years)     2 years 2 months 11 days
Special/Growth PSU's      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Number of shares, Restricted stock outstanding, beginning balance (in shares) 0    
Number of shares, Granted (in shares) 60    
Weighted average grant date fair value per share $ 22.57    
Number of shares, Forfeited or expired (in shares) (14)    
Number of shares, Restricted stock outstanding, ending balance (in shares) 46 0  
Unrecognized compensation expense   $ 702  
Average remaining service period (in years) 2 years 1 month 13 days    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 0