INCOME PER SHARE OF COMMON STOCK - NARRATIVE (Details) - $ / shares	3 Months Ended		9 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of earning per share (in shares)		209,000		209,000
Exercise Price One
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of earning per share (in shares)	129,000		129,000
Exercise price of shares excluded from computation of earnings per share (in USD per share)	$ 14.40		$ 14.40
Exercise Price Two
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of earning per share (in shares)	5,000		5,000
Exercise price of shares excluded from computation of earnings per share (in USD per share)	$ 20.26		$ 20.26
Exercise Price Three
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of earning per share (in shares)	172,500		172,500
Exercise price of shares excluded from computation of earnings per share (in USD per share)	$ 22.50		$ 22.50
Exercise Price Four
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of earning per share (in shares)	20,000		20,000
Exercise price of shares excluded from computation of earnings per share (in USD per share)	$ 22.30		$ 22.30
Exercise Price Five
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of earning per share (in shares)	11,000		11,000
Exercise price of shares excluded from computation of earnings per share (in USD per share)	$ 20.18		$ 20.18
Exercise Price Six
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of earning per share (in shares)	266,500		266,500
Exercise price of shares excluded from computation of earnings per share (in USD per share)	$ 21.90		$ 21.90
Minimum
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Exercise price of shares excluded from computation of earnings per share (in USD per share)		$ 20.18		$ 20.18
Maximum
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Exercise price of shares excluded from computation of earnings per share (in USD per share)		$ 22.50		$ 22.50