ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015 Period Region	Dec. 31, 2014
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Number of regions in which company sells products	3
Cash and Cash Equivalents [Abstract]
Credit card receivables	$ 1,600,000	$ 1,200,000
Cash and cash equivalents held in foreign bank accounts	26,300,000	24,800,000
Restricted Cash [Abstract]
Restricted cash	8,500,000	8,600,000
Accounts Receivable [Abstract]
Allowance for doubtful accounts	200,000	200,000
Other Assets [Abstract]
Other assets	4,081,000	3,567,000
Deposits for building leases	2,100,000	1,500,000
Fair trade commission deposits	1,700,000	1,700,000
Indefinite lived intangible assets	200,000	200,000
Other Long-Term Liabilities [Abstract]
Other long-term liabilities	2,137,000	2,136,000
Uncertain income tax position	700,000	700,000
Accrued lease restoration costs	400,000	400,000
Estimated defined benefit obligation related to a non-U.S. defined benefit plan for its Japan operations	600,000	600,000
Revenue Recognition and Deferred Commissions [Abstract]
Deferred revenue	11,400,000	10,900,000
Deferred commissions	4,476,000	4,544,000
Loyalty Program [Abstract]
Loyalty deferred revenue, beginning balance	9,703,000	5,456,000
Loyalty points forfeited	(1,381,000)	(4,664,000)
Loyalty points used	(3,592,000)	(12,348,000)
Loyalty points vested	3,144,000	19,580,000
Loyalty points unvested	1,846,000	1,679,000
Loyalty deferred revenue, ending balance	9,720,000	9,703,000
Percentage of sale returns (in hundredths)	1.50%
Commissions and Incentives [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	Three weeks
Number of weeks following business period end for payment of pack sales commissions	Five weeks
Reserve for Sales Returns [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Sales reserve, beginning of year	207,000
Provision related to sales made in current period	510,000
Adjustment related to sales made in prior periods	(43,000)
Actual returns or credits related to current period	(276,000)
Actual returns or credits related to prior periods	(158,000)
Sales reserve, end of period	$ 240,000