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Note 4 - Prepaid Expenses and Other Current Assets (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] |
|  | December 31, |
|  | 2023 |  |  | 2022 |
Prepaid dues and subscriptions |  | $ | 85 |  |  | $ | 43 |
Prepaid taxes |  |  | 83 |  |  |  | 1 |
Prepaid inventory |  |  | 73 |  |  |  | 211 |
Prepaid insurance |  |  | 66 |  |  |  | 146 |
Other |  |  | 81 |  |  |  | 159 |
Total prepaid expenses and other current assets |  | $ | 388 |  |  | $ | 560 |

X
- Definition Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration