INCOME PER SHARE OF COMMON STOCK (Details) - $ / shares	3 Months Ended		6 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Mar. 31, 2018
Exercise Price One
INCOME PER SHARE OF COMMON STOCK (Details) [Line Items]
Common stock (in shares)	35,000		64,000
Exercise price (in USD per share)	$ 12.04		$ 12.04
Exercise Price Two
INCOME PER SHARE OF COMMON STOCK (Details) [Line Items]
Common stock (in shares)	133,750		156,300
Exercise price (in USD per share)	$ 14.40		$ 14.40
Exercise Price Three
INCOME PER SHARE OF COMMON STOCK (Details) [Line Items]
Common stock (in shares)	5,000		193,000
Exercise price (in USD per share)	$ 20.26		$ 22.50
Exercise Price Four
INCOME PER SHARE OF COMMON STOCK (Details) [Line Items]
Common stock (in shares)	173,500
Exercise price (in USD per share)	$ 22.50
Exercise Price Five
INCOME PER SHARE OF COMMON STOCK (Details) [Line Items]
Common stock, not included in earnings per share (in shares)	20,000
Exercise price, not included in earnings per share (in USD per share)	$ 22.30
Exercise Price Six
INCOME PER SHARE OF COMMON STOCK (Details) [Line Items]
Common stock, not included in earnings per share (in shares)		64,000
Exercise price, not included in earnings per share (in USD per share)		$ 12.04
Exercise Price Seven
INCOME PER SHARE OF COMMON STOCK (Details) [Line Items]
Common stock, not included in earnings per share (in shares)		156,300
Exercise price, not included in earnings per share (in USD per share)		$ 14.40
Exercise Price Eight
INCOME PER SHARE OF COMMON STOCK (Details) [Line Items]
Common stock, not included in earnings per share (in shares)		193,000
Exercise price, not included in earnings per share (in USD per share)		$ 22.50