ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition and Deferred Commissions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue from External Customer [Line Items]
Non Cash Operating Lease Right Of Use Assets And Lease Liabilities	$ 4,638	$ 0
Sales Revenue Goods Percentage	100.00%	100.00%
Revenue from Contract with Customer, Excluding Assessed Tax	$ 157,728	$ 173,558
Contract with Customer, Liability, Revenue Recognized	5,300
Deferred revenue	4,400	5,300
Deferred revenue associated with customer loyalty programs	3,127	4,231	$ 6,406
Deferred commissions	$ 1,758	$ 2,449
Customer returns, days after original sale date		90 days
Percentage of sale returns		1.50%
Consolidated product sales [Member]
Revenue from External Customer [Line Items]
Sales Revenue Goods Percentage	98.00%	0.00%
Revenue from Contract with Customer, Excluding Assessed Tax	$ 154,600	$ 170,200
Consolidated pack sales [Member]
Revenue from External Customer [Line Items]
Sales Revenue Goods Percentage	0.00%	0.00%
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2,300	$ 2,500
Consolidated other, including freight [Member]
Revenue from External Customer [Line Items]
Sales Revenue Goods Percentage	0.00%	0.00%
Revenue from Contract with Customer, Excluding Assessed Tax	$ 800	$ 900