ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Loyalty Deferred Revenue (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Loyalty program
Loyalty deferred revenue, beginning balance	$ 4,167	$ 4,292
Loyalty points forfeited or expired	(3,176)	(3,387)
Loyalty points used	(6,846)	(10,543)
Loyalty points vested	7,880	12,773
Loyalty points unvested	867	1,032
Loyalty deferred revenue, ending balance	2,892	4,167
Deferred commissions	1,779	$ 2,476
Deferred revenue, revenue recognized during the period	$ 1,800