STOCK-BASED COMPENSATION AND STOCK OWNERSHIP PLANS (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
Dec. 29, 2017	Dec. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant (shares)	586,860,000
Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock purchase plan shares issued (shares)	0	0
Income in connection with Employee' Stock Purchase Plan	$ 11
ESPP compensation expense	$ 11	$ 0
Non-Vested Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares tendered for tax withholding (shares)	9,377,000	17,832,000
Stock-based compensation expense, net of forfeitures	$ 182	$ 283
Unrecognized stock-based compensation expense	1,011
Fair value of vested restricted stock	$ 3,948	3,219
Non-Vested Stock \| Employees \| Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, net of forfeitures	$ 345	$ 221
Unrecognized stock-based compensation expense	$ 1,847
Restricted Stock Units (RSUs) \| Vesting Period 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	1 year
Restricted Stock Units (RSUs) \| Vesting Period 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock purchase plan, purchase price	85.00%
Bonus achievement target level	80.00%
Bonus payout as a percentage of target award	50.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Bonus achievement target level	120.00%
Bonus payout as a percentage of target award	150.00%

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The amount of plan compensation cost recognized during the period.

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Purchase price of common stock expressed as a percentage of its fair value.

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