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Note 4 - Balance Sheet Components (Tables) | 12 Months Ended
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Dec. 31, 2022
Notes Tables |
Schedule of Additional Balance Sheet Components [Table Text Block] |
|  | December 31, |
|  | 2022 |  |  | 2021 |
Cash and cash equivalents: |  |  |  |  |  |  |  |
Cash |  | $ | 12,834 |  |  | $ | 17,281 |
Cash equivalents |  |  | 56,833 |  |  |  | 66,562 |
|  |  | 69,667 |  |  |  | 83,843 |
Restricted cash |  |  | 79 |  |  |  | 522 |
|  | $ | 69,746 |  |  | $ | 84,365 |
Inventories: |  |  |  |  |  |  |  |
Finished goods |  | $ | 3,653 |  |  | $ | 4,476 |
Raw materials |  |  | 890 |  |  |  | 873 |
Reserve for obsolescence |  |  | (18 | ) |  |  | (92 | )
|  | $ | 4,525 |  |  | $ | 5,257 |
Property and equipment: |  |  |  |  |  |  |  |
Office equipment |  | $ | 462 |  |  | $ | 460 |
Office software |  |  | 986 |  |  |  | 1,009 |
Machinery |  |  | 20 |  |  |  | 22 |
Furniture and fixtures |  |  | 249 |  |  |  | 252 |
Leasehold improvements |  |  | 981 |  |  |  | 814 |
Construction in progress |  |  | 30 |  |  |  | 173 |
Property and equipment, at cost |  |  | 2,728 |  |  |  | 2,730 |
Accumulated depreciation and amortization |  |  | (2,334 | ) |  |  | (2,267 | )
|  | $ | 394 |  |  | $ | 463 |
Other accrued expenses: |  |  |  |  |  |  |  |
Sales returns |  | $ | 70 |  |  | $ | 137 |
Employee-related expense |  |  | 737 |  |  |  | 988 |
Warehousing, inventory-related and other |  |  | 374 |  |  |  | 808 |
|  | $ | 1,181 |  |  | $ | 1,933 |
Deferred revenue: |  |  |  |  |  |  |  |
Unshipped product and unredeemed product vouchers |  | $ | 3,822 |  |  | $ | 6,525 |
Auto ship advances |  |  | 1,775 |  |  |  | 1,901 |
Other |  |  | — |  |  |  | 110 |
|  | $ | 5,597 |  |  | $ | 8,536 |

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