ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Cash and Cash Equivalents [Abstract]
Credit card receivables	$ 1,400,000		$ 1,400,000		$ 1,700,000
Cash and cash equivalents held in foreign bank accounts	9,400,000		9,400,000		10,500,000
Restricted Cash [Abstract]
Restricted cash	5,000,000		5,000,000		4,600,000
Receivables [Abstract]
Allowance for doubtful accounts	100,000		100,000		100,000
Other Assets [Abstract]
Other assets	3,124,000		3,124,000		2,815,000
Deposit Assets	900,000		900,000		900,000
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			3
Number of weeks following business period end for payment of pack sales commissions			5
Other Long-Term Liabilities [Abstract]
Description of Postemployment Benefits			In August 2003, the Company entered into a Long-Term Post-Employment Royalty Agreement with Dr. Bill McAnalley, the Company's former Chief Science Officer, pursuant to which the Company is required to pay Dr. McAnalley, or his heirs, royalties for ten years beginning September 2005 and continuing through August 2015. Quarterly payments related to this Long-Term Post-Employment Royalty Agreement are based on certain applicable annual global product sales by the Company
Global product sales threshold for Long-Term Post Employment Royalty Agreement			105,400,000
Recognition period of employment agreement			2 years
Post-Employment Benefit Liability	1,000,000		1,000,000		1,200,000
Postemployment Benefits Liability, Current	300,000		300,000		300,000
Accrued lease restoration costs	400,000		400,000		400,000
Defined benefit plan obligation	1,300,000		1,300,000		1,300,000
Revenue Recognition [Abstract]
Deferred Revenue	1,800,000		1,800,000		1,600,000
Percentage of sale returns (in hundredths)			1.50%
Movement in Valuation Allowances and Reserves [Roll Forward]
Revenue Recognition, Sales Returns, Reserve for Sales Returns			528,000
Provision related to sales current period			900,000
Adjustment related to sales made in prior periods			(315,000)
Actual returns or credits related to current period			(695,000)
Actual returns or credits related to prior periods			(224,000)
Revenue Recognition, Sales Returns, Reserve for Sales Returns	194,000		194,000
Shipping and Handling Costs [Abstract]
Shipping and handling costs	$ 2,400,000	$ 2,700,000	$ 4,800,000	$ 5,600,000
Reverse Stock Split [Abstract]
Reverse stock split ratio			1-for-10