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Note 1 - Organization and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2022
Notes Tables |
Property, Plant and Equipment [Table Text Block] |
(in thousands) |  | Useful life in years |  |  | 2022 |  |  | 2021 |
Property and equipment |  | 3 | - | 5 |  |  | $ | 23,075 |  |  | $ | 18,283 |
Internal-use software |  | 3 | - | 7 |  |  |  | 1,967 |  |  |  | 429 |
Furniture and fixtures |  | 5 | - | 7 |  |  |  | 922 |  |  |  | 319 |
Building |  |  | 39 |  |  |  |  | 320 |  |  |  | 308 |
Property and equipment, gross |  |  |  |  |  |  |  | 26,284 |  |  |  | 19,339 |
Accumulated depreciation |  |  |  |  |  |  |  | (14,278 | ) |  |  | (8,968 | )
Property and equipment, net |  |  |  |  |  |  | $ | 12,006 |  |  | $ | 10,371 |
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block] |
|  | December 31 2022 |
(in thousands) |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total Fair Value |
Cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market accounts |  | $ | 17,496 |  |  | $ | − |  |  | $ | − |  |  | $ | 17,496 |
Marketable securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate and municipal debt securities |  |  | 4,973 |  |  |  | − |  |  |  | − |  |  |  | 4,973 |
Total assets |  | $ | 22,469 |  |  | $ | − |  |  | $ | − |  |  | $ | 22,469 |
|  | December 31, 2021 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total Fair Value |
Cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market accounts |  | $ | 26,866 |  |  | $ | − |  |  | $ | − |  |  | $ | 26,866 |
Marketable securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate and municipal debt securities |  |  | − |  |  |  | − |  |  |  | − |  |  |  | − |
Total assets |  | $ | 26,866 |  |  | $ | − |  |  | $ | − |  |  | $ | 26,866 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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