ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017 USD ($) Period	Dec. 31, 2016 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of regions in which company sells products	3
Cash and Cash Equivalents [Abstract]
Credit card receivables	$ 2,600	$ 500
Cash and cash equivalents held in foreign bank accounts	32,300	27,500
Restricted Cash [Abstract]
Restricted cash	8,300	7,900
Accounts Receivable [Abstract]
Allowance for doubtful accounts	500	500
Other Assets [Abstract]
Other assets	3,617	4,013
Deposits for building leases	1,800	2,200
Fair trade commission deposits	1,600	1,500
Indefinite lived intangible assets	200	200
Notes Payable [Abstract]
Notes payable	1,100	1,400
Notes payable, current portion	843	801
Notes payable, long-term portion	286	567
Other Long-Term Liabilities [Abstract]
Other long-term liabilities	1,413	1,465
Uncertain income tax position	200	200
Accrued lease restoration costs	500	600
Defined benefit plan obligation	400	500
Valuation and Qualifying Accounts Disclosure [Line Items]
Deferred revenue	8,326	8,156
Deferred commissions	3,233	3,229
Loyalty Program [Roll Forward]
Loyalty deferred revenue, beginning balance	7,033	8,073
Loyalty points forfeited or expired	(3,370)	(6,963)
Loyalty points used	(6,957)	(15,451)
Loyalty points vested	7,585	20,085
Loyalty points unvested	1,916	1,289
Loyalty deferred revenue, ending balance	$ 6,207	7,033
Movement in Valuation Allowances and Reserves [Roll Forward]
Customer returns, days after original sale date	90 days
Percentage of sale returns	1.50%
Commissions and Incentives [Abstract]
Number of business periods per year | Period	13
Number of days per business period	28 days
Reserve for Sales Returns
Movement in Valuation Allowances and Reserves [Roll Forward]
Sales reserve, beginning of year	$ 129
Provision related to sales made in current period	591
Adjustment related to sales made in prior periods	3
Actual returns or credits related to current period	(457)
Actual returns or credits related to prior periods	(132)
Sales reserve, end of period	134	$ 129
NutraScoop, LLC
Valuation and Qualifying Accounts Disclosure [Line Items]
Consideration transferred, associate position	$ 800