Note 1 - Organization and Summary of Significant Accounting Policies (Details Textual)	3 Months Ended	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Number of Regions in Which Entity Operates	3	3
Gain (Loss), Foreign Currency Transaction, after Tax		$ 2,100,000	$ 2,600,000
Cash and Cash Equivalent	$ 6,185,000	6,185,000	11,396,000
Credit Card Receivables	2,200,000	2,200,000	1,600,000
Cash and Cash Equivalent, Held in Foreign Currency	4,300,000	4,300,000	6,900,000
Restricted Cash	800,000	800,000	1,100,000
Accounts Receivable, Allowance for Credit Loss	756,000	756,000	935,000	$ 1,278,000
Prepaid Expense and Other Assets, Current	1,701,000	1,701,000	1,755,000
Prepaid Expense, Current	900,000	900,000	1,100,000
Prepaid Deposits	200,000	200,000	200,000
Prepaid Inventory	600,000	600,000	500,000
Other Assets	2,800,000	2,800,000	2,600,000
Security Deposit	1,300,000	1,300,000	1,100,000
Deposit Assets	1,300,000	1,300,000	1,300,000
Other Liabilities, Noncurrent	1,340,000	1,340,000	1,390,000
Accrued Lease Restoration Costs	300,000	300,000	300,000
Government Required Severance, Noncurrent	900,000	900,000	900,000
Liability, Defined Benefit Plan, Noncurrent	100,000	100,000	200,000
Revenue, Remaining Performance Obligation, Amount	100,000	100,000	100,000
Deferred Commissions	1,280,000	1,280,000	1,259,000
Contract with Customer, Liability	$ 3,100,000	3,100,000	3,000,000	$ 4,800,000
Advertising Expense		2,800,000	2,500,000
Research and Development Expense		800,000	700,000
Payments to Develop Software		$ 300,000	$ 300,000
Supplier Concentration Risk [Member] | Cost of Goods and Service Benchmark [Member]
Number of Suppliers	3	3	3
Supplier Concentration Risk [Member] | Cost of Goods and Service Benchmark [Member] | Three Suppliers [Member]
Concentration Risk, Percentage	47.10%		54.60%
Loyalty Program [Member]
Contract with Customer, Liability	$ 3	$ 3	$ 2,900,000
Manapol Power Trademark [Member]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	200,000	200,000	200,000
Maximum [Member]
Accounts Receivable, after Allowance for Credit Loss	$ 100,000	$ 100,000	100,000
Maximum [Member] | Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	5 years	5 years
Minimum [Member] | Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	3 years	3 years
KOREA, REPUBLIC OF
Cash and Cash Equivalent, Held in Foreign Currency	$ 1,400,000	$ 1,400,000	$ 3,300,000