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Note 4 - Balance Sheet Components | 12 Months Ended
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Dec. 31, 2023
Notes to Financial Statements |
Supplemental Balance Sheet Disclosures [Text Block] | 4. BALANCE SHEET COMPONENTS The components of certain balance sheet amounts are as follows (in thousands):
|  | December 31, |
|  | 2023 |  |  | 2022 |
Cash and cash equivalents: |  |  |  |  |  |  |  |
Cash |  | $ | 8,971 |  |  | $ | 12,834 |
Cash equivalents |  |  | 47,207 |  |  |  | 56,833 |
|  |  | 56,178 |  |  |  | 69,667 |
Restricted cash |  |  | 39 |  |  |  | 79 |
|  | $ | 56,217 |  |  | $ | 69,746 |
Inventories: |  |  |  |  |  |  |  |
Finished goods |  | $ | 3,473 |  |  | $ | 3,653 |
Raw materials |  |  | 855 |  |  |  | 890 |
Reserve for obsolescence |  |  | (35 | ) |  |  | (18 | )
|  | $ | 4,293 |  |  | $ | 4,525 |
Property and equipment: |  |  |  |  |  |  |  |
Office equipment |  | $ | 456 |  |  | $ | 462 |
Office software |  |  | 979 |  |  |  | 986 |
Machinery |  |  | — |  |  |  | 20 |
Furniture and fixtures |  |  | 243 |  |  |  | 249 |
Leasehold improvements |  |  | 760 |  |  |  | 981 |
Construction in progress |  |  | 40 |  |  |  | 30 |
Property and equipment, at cost |  |  | 2,478 |  |  |  | 2,728 |
Accumulated depreciation and amortization |  |  | (2,212 | ) |  |  | (2,334 | )
|  | $ | 266 |  |  | $ | 394 |
Other accrued expenses: |  |  |  |  |  |  |  |
Sales returns |  | $ | 81 |  |  | $ | 70 |
Employee-related expense |  |  | 668 |  |  |  | 737 |
Warehousing, inventory-related and other |  |  | 421 |  |  |  | 374 |
|  | $ | 1,170 |  |  | $ | 1,181 |
Deferred revenue: |  |  |  |  |  |  |  |
Unshipped product and unredeemed product vouchers |  | $ | 4,417 |  |  | $ | 3,822 |
Auto ship advances |  |  | 1,749 |  |  |  | 1,775 |
|  | $ | 6,166 |  |  | $ | 5,597 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//210/tableOfContent + Details
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