Note 3 - Revenue and Accounts Receivable - Schedule of Accounts Receivable (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Accounts receivable, gross | $ 412 | $ 314 |
| Less: allowance for credit losses | (206) | (153) |
| Accounts receivable, net | 206 | 161 |
| Commercial Insurance [Member] | ||
| Accounts receivable, gross | 184 | 147 |
| Medicare [Member] | ||
| Accounts receivable, gross | 41 | 24 |
| Self-Pay [Member] | ||
| Accounts receivable, gross | $ 187 | $ 143 |
| X | ||||||||||
- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
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| X | ||||||||||
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