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Note 2 - Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2022
Notes Tables |
Schedule of Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Table Text Block] |
|  | December 31, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
Cash and cash equivalents |  | $ | 5,362 |  |  | $ | 7,504 |
Restricted cash included in other assets |  |  | 484 |  |  |  | 475 |
Total cash, cash equivalents, and restricted cash in the consolidated statements of cash flows |  | $ | 5,846 |  |  | $ | 7,979 |
Schedules of Concentration of Risk, by Product [Table Text Block] |
|  | For the Years Ended December 31, |
|  | 2022 |  |  | 2021 |
Avenova Spray |  | $ | 7,651 |  |  | $ | 8,565 |
DERMAdoctor |  |  | 4,155 |  |  |  | 649 |
NeutroPhase |  |  | 976 |  |  |  | 368 |
Other products |  |  | 1,592 |  |  |  | 598 |
Total product revenue, net |  |  | 14,374 |  |  |  | 10,180 |
Other revenue, net |  |  | 30 |  |  |  | 24 |
Total sales, net |  | $ | 14,404 |  |  | $ | 10,204 |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | December 31, |  |  | December 31, |
Major distribution partner |  | 2022 |  |  | 2021 |
Avenova Spray Pharmacy Distributor A |  |  | 30 | % |  |  | 11 | %
Major U.S. Retailer A |  |  | 15 | % |  |  | * | %
Avenova Spray Pharmacy Distributor B |  |  | 11 | % |  |  | * | %
Major U.S. Retailer B |  |  | * | % |  |  | 33 | %
Avenova Spray Pharmacy Distributor C |  |  | * | % |  |  | 13 | %
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block] |
|  | For the Year Ended December 31, 2021 |
|  | As Previously Reported |  |  | Selling Commissions |  |  | Fulfillment Fees |  |  | As Revised |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product revenue, net |  | $ | 8,397 |  |  | $ | 870 |  |  | $ | 913 |  |  | $ | 10,180 |
Cost of goods sold |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  | 2,776 |  |  |  | - |  |  |  | 913 |  |  |  | 3,689 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales and marketing |  |  | 7,223 |  |  |  | 870 |  |  |  | - |  |  |  | 8,093 |
Net loss |  |  | (5,824 | ) |  |  | - |  |  |  | - |  |  |  | (5,824 | )
Net loss per share attributable to common stockholders (basic and diluted) |  |  | (5.26 | ) |  |  | - |  |  |  | - |  |  |  | (5.26 | )
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | For the Years Ended December 31, |
|  | 2022 |  |  | 2021 |
Numerator |  |  |  |  |  |  |  |
Net loss |  | $ | (10,608 | ) |  | $ | (5,824 | )
Less: Preferred deemed dividend |  |  | — |  |  |  | 735 |
Less: Retained earnings reduction related to preferred stock down round feature triggered |  |  | 5,657 |  |  |  | — |
Net loss attributable to common stockholders, basic and diluted |  | $ | (16,265 | ) |  | $ | (6,559 | )
Denominator |  |  |  |  |  |  |  |
Weighted average shares of common stock outstanding, basic and diluted |  |  | 1,610 |  |  |  | 1,247 |
Net loss per share attributable to common stockholders, basic and diluted |  | $ | (10.10 | ) |  | $ | (5.26 | )
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] |
|  | For the Years Ended December 31, |
|  | 2022 |  |  | 2021 |
Stock options |  |  | 132 |  |  |  | 127 |
Stock warrants |  |  | 2,306 |  |  |  | 202 |
|  |  | 2,438 |  |  |  | 329 |

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