ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	6 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014 Business Plan Region		Dec. 31, 2013	Dec. 31, 2012
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Number of regions in which company sells products		3
Foreign Currency Translation [Abstract]
Transaction gains (losses)		$ (3,000,000)		$ (900,000)
Cash and Cash Equivalents [Abstract]
Credit card receivables	600,000	1,200,000		600,000
Cash and cash equivalents held in foreign bank accounts	14,700,000	24,800,000		14,700,000
Restricted Cash [Abstract]
Restricted cash	5,800,000	8,600,000		5,800,000
Accounts Receivables [Abstract]
Allowance for doubtful accounts	100,000	200,000		100,000
Accounts receivable, net	100,000	200,000		100,000
Other Assets [Abstract]
Other assets	3,591,000	3,567,000		3,591,000
Deposits for building leases	1,400,000	1,500,000		1,400,000
Fair trade commission deposits	1,800,000	1,700,000		1,800,000
Indefinite lived intangible assets	200,000	200,000		200,000
Other Long-Term Liabilities [Abstract]
Accrued lease restoration costs	200,000	400,000		200,000
Defined benefit plan obligation	(629,000)	(549,000)		(629,000)
Other long-term liabilities	2,092,000	2,136,000		2,092,000
Financing obligation in noncurrent liabilities	200,000			200,000
Uncertain income tax positions recorded in noncurrent liabilities	700,000	700,000		700,000
Revenue Recognition [Abstract]
Deferred revenue	6,400,000	10,900,000		6,400,000
Deferred commissions	2,706,000	4,544,000		2,706,000
Percentage of sale returns (in hundredths)		1.50%
Loyalty Program [Abstract]
Loyalty deferred revenue, beginning balance	0	5,456,000
Loyalty points forfeited	(1,136,000)	(4,664,000)
Loyalty points used	(723,000)	(12,348,000)
Loyalty points vested	5,072,000	19,580,000
Loyalty points unvested	2,243,000	1,679,000
Loyalty deferred revenue, ending balance	5,456,000	9,703,000		5,456,000
Shipping and Handling Costs [Abstract]
Revenue from freight and shipping fees		7,400,000		7,700,000
Freight costs		6,700,000		6,800,000
Commissions and Incentives Expenses [Abstract]
Number of business periods per year		13
Number of days per business period		28 days
Number of weeks following business period end for payment of product sales commissions		3
Number of weeks following business period end for payment of pack sales commissions		5
Advertising Expenses [Abstract]
Advertising and promotional expense		4,900,000		4,300,000
Research and Development Expenses [Abstract]
Research and development consulting fees		1,600,000		1,600,000
Stock-Based Compensation [Abstract]
Number of active stock based compensation plan		1
Option contract term		P10Y
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentages of stock option ownership considered for higher exercise price of option (in hundredths)		10.00%
Option exercise price as percentages of closing exercise price of stock for specific shareholders (in hundredths)		110.00%
Expiration period of stock option plan		5 years
Concentration Risk [Line Items]
Concentration risk, sales by product		98,647,000		84,203,000
Concentration risk, percentage of net sales (in hundredths)		51.90%		47.50%
Advanced Ambrotose [Member]
Concentration Risk [Line Items]
Concentration risk, sales by product		63,791,000		59,894,000
Concentration risk, percentage of net sales (in hundredths)		33.60%		33.70%
Ambrotose [Member]
Concentration Risk [Line Items]
Concentration risk, sales by product		10,895,000		10,939,000
Concentration risk, percentage of net sales (in hundredths)		5.70%		6.20%
Uth Skin Rejuvenation [Member]
Concentration Risk [Line Items]
Concentration risk, sales by product		13,431,000		2,406,000
Concentration risk, percentage of net sales (in hundredths)		7.10%		1.40%
NutriVerus [Member]
Concentration Risk [Line Items]
Concentration risk, sales by product		10,530,000		10,964,000
Concentration risk, percentage of net sales (in hundredths)		5.50%		6.20%
Reserve for Sales Returns [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year		238,000			156,000
Provision related to sales made in current period		1,618,000
Adjustment related to sales made in prior periods		10,000
Actual returns or credits related to current period		(1,411,000)
Actual returns or credits related to prior periods		(248,000)
Balance at end of year		$ 207,000			$ 156,000
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of stock options		2 years
Minimum [Member] | Software [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of software		3 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of stock options		3 years
Maximum [Member] | Software [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of software		5 years
Office Furniture and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets		5 years
Office Furniture and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets		7 years
Computer Hardware and Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets		3 years
Computer Hardware and Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets		5 years
Automobiles [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets		3 years
Automobiles [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets		5 years
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets		2 years	[1]
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets		10 years	[1]

[1] The Company amortizes leasehold improvements over the shorter of the useful estimated life of the leased asset or the lease term.