ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Commission and Incentive Expense (Details)	12 Months Ended
	Dec. 31, 2016 Period
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of business periods per year	13
Number of days per business cycle	28 days
Number of weeks following business period end for payment of product sales commissions	21 days
Number of weeks following business period end for payment of pack sales commissions	35 days