SHAREHOLDERS' EQUITY AND EMPLOYEE BENEFIT PLANS (Employee stock option activity) (Details) - Employee Stock Option [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Oct. 03, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of shares, Options outstanding, beginning balance (in shares)	90	147	220
Number of shares, Exercised (in shares)	(61)	(53)	(45)
Number of shares, Forfeited or expired (in shares)	(13)	(4)	(28)
Number of shares, Options outstanding, ending balance (in shares)	16	90	147
Number of shares, Options vested and expected to vest (in shares)	16
Number of shares, Options exercisable (in shares)	16
Number of shares, In the money exercisable options (in shares)	16
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)	$ 8.41	$ 8.18	$ 8.14
Weighted average exercise price, Exercised (in dollars per share)	8.31	5.40	8.58
Weighted average exercise price, Forfeited or expired (in dollars per share)	8.50	9.00	7.25
Weighted average exercise price, Options outstanding, ending balance (in dollars per share)	8.73	$ 8.41	$ 8.18
Weighted average exercise price, Options vested and expected to vest (in dollars per share)	8.73
Weighted average exercise price, Options exercisable (in dollars per share)	$ 8.73
Average remaining contractual life, Options outstanding (in years)	3 months 7 days
Average remaining contractual life, Options vested and expected to vest (in years)	3 months 7 days
Average remaining contractual life, Options exercisable (in years)	3 months 7 days
Aggregate intrinsic value, Exercised	$ 531	$ 330	$ 282
Aggregate intrinsic value, Options outstanding	200
Aggregate intrinsic value, Options vested and expected to vest	200
Aggregate intrinsic value, In the money exercisable options	$ 200