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Note 12 - Accrued Liabilities | 6 Months Ended
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Jun. 30, 2022
Notes to Financial Statements |
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] | 12. Accrued Liabilities The components of other accrued liabilities are as follows:
|  | As of |
|  | June 30, 2022 |  |  | December 31, 2021 |
Contract liabilities (Note 3) |  | $ | 578 |  |  | $ | 390 |
Other accrued liabilities |  |  | 309 |  |  |  | 471 |
Total other accrued liabilities |  | $ | 887 |  |  | $ | 861 |

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- Definition The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as current at the end of the reporting period. + 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_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration