ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)		6 Months Ended
	Jun. 25, 2020 shares	Jun. 30, 2020 USD ($) region	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of regions in which company sells products | region		3
Credit card receivables		$ 2,400,000		$ 700,000
Cash and cash equivalents held in foreign bank accounts		17,000,000.0		18,200,000
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Restricted cash		5,200,000		6,200,000
Accounts receivable, net of allowance		251,000		955,000
Allowance for doubtful accounts		700,000		700,000
Other assets		11,986,000		9,592,000
Deposits for building leases		2,000,000.0		2,200,000
Fair trade commission deposits		2,500,000		1,600,000
Indefinite lived intangible assets				200,000
Notes payable		1,000,000.0		1,100,000
Notes payable, current portion		889,000		739,000
Other long-term liabilities		7,727,000		6,214,000
Uncertain income tax position		200,000		200,000
Accrued lease restoration costs		300,000		300,000
Defined benefit plan obligation		300,000		300,000
Deferred commissions		1,650,000		1,758,000
Amortization of deferred commissions		900,000
Deferred revenue		4,801,000		4,416,000
Loyalty deferred revenue, ending balance		$ 3,064,000
Percentage of sale returns		1.50%
Accrued expenses		$ 8,162,000		8,209,000
Accrued Employee Benefits, Current		2,300,000
Non-inventory accrual, current		2,400,000		2,200,000
Accrued Professional Fees		800,000		900,000
Other Accrued Liabilities, Current		700,000		1,200,000
Accrued expenses		8,162,000		8,209,000
Other Assets, Current		12,000,000.0		9,600,000
Deferred Revenue, Revenue Recognized		2,400,000
Purchased shares | shares	294,117
Other Borrowings		2,200,000	$ 2,243,687
South Korea
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Net assets		$ 19,000,000.0		$ 19,200,000
Software Tools
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period		3 months
Associate Fees
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period		12 months