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- Definition

Bonus Achievement Target Level

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- Definition

Bonus Payout as a Percentage of Target Award

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- Definition

Number of Share-Based Payment Award Plans With Shares Available for Future Issuance

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- Definition

Shares Tendered Back to Company

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

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

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No definition available.

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For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

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Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan.

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Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.

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STOCK-BASED COMPENSATION AND STOCK OWNERSHIP PLANS (Narrative) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2019 USD ($) plan shares	Mar. 30, 2018 USD ($) shares	Mar. 29, 2019 USD ($) plan shares	Mar. 30, 2018 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of plans with shares available for future issuance \| plan	2		2
Shares available for grant (shares) \| shares	532,367		532,367
Award performance period			3 years
Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock purchase plan shares issued (shares) \| shares	1,594	1,740	1,594	1,740
Issuance of stock under employee stock purchase plan	$ 2	$ 10	$ 14	$ 20
Non-Vested Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares tendered for tax withholding (shares) \| shares			3,381	9,377
Stock-based compensation expense, net of forfeitures	160	113	$ 278	$ 221
Unrecognized stock-based compensation expense	1,549		1,549
Fair value of vested restricted stock			$ 1,237	3,948
Non-Vested Stock \| Director \| Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			1 year
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	414	$ 383	$ 816	$ 773
Unrecognized stock-based compensation expense	$ 2,222		$ 2,222
Shares tendered back to company (shares) \| shares			6,509	0
Fair value of vested restricted stock			$ 3,333	$ 549
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]
Bonus achievement target level			80.00%
Bonus payout as a percentage of target award			50.00%
Employee stock purchase plan, purchase price			85.00%
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%