SHAREHOLDERS' EQUITY AND EMPLOYEE BENEFIT PLANS (Employee performance-based and special growth restricted stock activity) (Details) - Special/Growth PSU's - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 28, 2019	Sep. 29, 2018
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)	46	0
Number of shares, Granted (in shares)	55	60
Weighted average grant date fair value per share	$ 21.07	$ 22.57
Number of shares, Forfeited or expired (in shares)	(4)	(14)
Number of shares, Restricted stock outstanding, ending balance (in shares)	97	46
Unrecognized compensation expense	$ 1,128	$ 702
Average remaining service period (in years)	1 year 7 months 6 days	2 years 1 month 6 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	0	0