Note 1 - Organization and Summary of Significant Accounting Policies (Tables)
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3 Months Ended |
Mar. 31, 2026 |
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| Notes Tables |
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| Schedule of Cash and Cash Equivalents [Table Text Block] |
| | | March 31, 2026 | | | December 31, 2025 | |
| Cash and cash equivalents | | $ | 7,013 | | | $ | 6,185 | |
| Current restricted cash | | | 134 | | | | 550 | |
| Long-term restricted cash | | | 226 | | | | 234 | |
| Cash, cash equivalents, and restricted cash | | $ | 7,373 | | | $ | 6,969 | |
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| Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] |
| | | March 31, 2026 | | | December 31, 2025 | |
| Accounts receivable, net | | $ | 10 | | | $ | 1 | |
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| Accounts Receivable, Allowance for Credit Loss [Table Text Block] |
| | | March 31, 2026 | | | March 31, 2025 | |
| Allowance for credit losses at beginning of period | | $ | 756 | | | $ | 935 | |
| Recoveries in current period | | | (74 | ) | | | (96 | ) |
| Accounts charged off against the allowance | | | (55 | ) | | | 37 | |
| Allowance for credit losses at end of period | | $ | 627 | | | $ | 876 | |
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| Schedule of Other Assets [Table Text Block] |
| | | March 31, 2026 | | | December 31, 2025 | |
| Investment in Korea Mutual Aid Cooperative & Consumer | | $ | 1,218 | | | $ | 1,283 | |
| Deposits for building leases | | | 1,167 | | | | 1,231 | |
| Manapol Trademark | | | 237 | | | | 237 | |
| | | $ | 2,622 | | | $ | 2,751 | |
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| Schedule of Accrued Liabilities [Table Text Block] |
| | | March 31, 2026 | | | December 31, 2025 | |
| Accrued compensation | | $ | 1,286 | | | $ | 1,164 | |
| Accrued legal and accounting fees | | | 575 | | | | 605 | |
| Customer deposits and sales returns | | | 65 | | | | 65 | |
| Other accrued operating expenses | | | 673 | | | | 525 | |
| Accrued shipping and handling costs | | | 285 | | | | 266 | |
| Accrued sales and other taxes | | | 131 | | | | 116 | |
| Accrued travel expenses related to corporate events | | | 173 | | | | 157 | |
| Accrued inventory purchases | | | 46 | | | | 196 | |
| Accrued royalties | | | 29 | | | | 21 | |
| Accrued rent expense | | | — | | | | 13 | |
| | | $ | 3,263 | | | $ | 3,128 | |
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| Other Noncurrent Liabilities [Table Text Block] |
| | | March 31, 2026 | | | December 31, 2025 | |
| Government required severance | | $ | 839 | | | $ | 854 | |
| Accrued lease restoration costs | | | 318 | | | | 332 | |
| Defined benefit plan obligation | | | 150 | | | | 154 | |
| | | $ | 1,307 | | | $ | 1,340 | |
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| Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
| | | Three Months Ended | |
| | | March 31, | |
| | | 2026 | | | 2025 | |
| Total deferred revenue at beginning of the period | | $ | 3,086 | | | $ | 3,027 | |
| Amount recognized as revenue during the period that is included in beginning of the period | | | (747 | ) | | | (1,536 | ) |
| New deferrals at the end of the period, net | | | 931 | | | | 831 | |
| Total deferred revenue at end of the period | | $ | 3,270 | | | $ | 2,322 | |
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| Deferred Revenue, Loyalty Program, Disclosure [Table Text Block] |
| | | Three Months Ended | |
| | | March 31, | |
| Loyalty program (in thousands) | | 2026 | | | 2025 | |
| Loyalty deferred revenue at beginning of the period | | $ | 3,005 | | | $ | 2,921 | |
| Loyalty points forfeited or expired | | | (545 | ) | | | (651 | ) |
| Loyalty points used | | | (1,618 | ) | | | (2,316 | ) |
| Loyalty points vested | | | 2,054 | | | | 1,923 | |
| Loyalty points unvested | | | 292 | | | | 354 | |
| Loyalty deferred revenue at end of period | | $ | 3,188 | | | $ | 2,231 | |
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| Deferred Revenue, Commissions, Disclosure [Table Text Block] |
| | | Three Months Ended | |
| | | March 31, | |
| | | 2026 | | | 2025 | |
| Deferred commissions at beginning of the period | | $ | 1,280 | | | $ | 1,259 | |
| Amount recognized as commissions expense | | | (267 | ) | | | (572 | ) |
| New commission deferrals at the end of the period | | | 500 | | | | 74 | |
| Total deferred commissions at end of the period | | $ | 1,513 | | | $ | 761 | |
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| Schedule of Sales Return Reserve [Table Text Block] |
| | | March 31, 2026 | | | March 31, 2025 | |
| Sales reserve at beginning of period | | $ | 38 | | | $ | 56 | |
| Provision in current period | | | 171 | | | | 127 | |
| Returns charged off against the reserve | | | (158 | ) | | | (139 | ) |
| Sales reserve at end of period | | $ | 51 | | | $ | 44 | |
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