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Note 4 - Balance Sheet Components | 12 Months Ended
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Dec. 31, 2020
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, |
|  | 2020 |  |  | 2019 |
Cash and cash equivalents: |  |  |  |  |  |  |  |
Cash |  | $ | 23,977 |  |  | $ | 13,720 |
Cash equivalents |  |  | 68,390 |  |  |  | 82,315 |
|  |  | 92,367 |  |  |  | 96,035 |
Restricted cash |  |  | 525 |  |  |  | 3,390 |
|  | $ | 92,892 |  |  | $ | 99,425 |
Inventories: |  |  |  |  |  |  |  |
Finished goods |  | $ | 3,071 |  |  | $ | 6,142 |
Raw materials |  |  | 1,047 |  |  |  | 1,249 |
Reserve for obsolescence |  |  | (339 | ) |  |  | (987 | )
|  | $ | 3,779 |  |  | $ | 6,404 |
Property and equipment: |  |  |  |  |  |  |  |
Office equipment |  | $ | 449 |  |  | $ | 578 |
Office software |  |  | 1,001 |  |  |  | 1,037 |
Machinery |  |  | 30 |  |  |  | 28 |
Furniture and fixtures |  |  | 254 |  |  |  | 327 |
Leasehold improvements |  |  | 839 |  |  |  | 1,001 |
Construction in progress |  |  | 41 |  |  |  | — |
Property and equipment, at cost |  |  | 2,614 |  |  |  | 2,971 |
Accumulated depreciation and amortization |  |  | (2,075 | ) |  |  | (2,236 | )
|  | $ | 539 |  |  | $ | 735 |
Other accrued expenses: |  |  |  |  |  |  |  |
Sales returns |  | $ | 189 |  |  | $ | 373 |
Employee-related expense |  |  | 1,149 |  |  |  | 1,258 |
Warehousing, inventory-related and other |  |  | 584 |  |  |  | 756 |
|  | $ | 1,922 |  |  | $ | 2,387 |
Deferred revenue: |  |  |  |  |  |  |  |
Unshipped product and unredeemed product vouchers |  | $ | 1,005 |  |  | $ | 2,390 |
Auto ship advances |  |  | 1,977 |  |  |  | 1,985 |
Other |  |  | 109 |  |  |  | 131 |
|  | $ | 3,091 |  |  | $ | 4,506 |
As of December 31, 2020, cash and cash equivalents include $12.5 million held in banks located within China subject to foreign currency controls.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI http://asc.fasb.org/topic&trid=2122208 + Details
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