INVESTMENT IN JOINT VENTURE - Summary of Red Iron (Details) - Red Iron Acceptance, LLC - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Schedule of Equity Method Investments [Line Items]
Revenues	$ 35,158	$ 31,812	$ 27,483
Interest and operating expenses, net	(13,030)	(10,506)	(8,885)
Net income	22,128	21,306	$ 18,598
Finance receivables, net	407,533	370,169
Other assets	2,888	4,416
Total assets	410,421	374,585
Notes payable	347,968	321,378
Other liabilities	16,617	11,607
Partners' capital	45,836	41,600
Total liabilities and partners' capital	$ 410,421	$ 374,585