Note 14 - Distribution Agreements (Details Textual) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Revenue from Contract with Customer, Including Assessed Tax	$ 3,265	$ 3,826	$ 10,999	$ 10,761
Avenova Direct [Member]
Revenue from Contract with Customer, Including Assessed Tax	1,600	1,600	4,500	5,100
DERMAdoctor [Member]
Revenue from Contract with Customer, Including Assessed Tax	784	1,319	2,645	3,115
McKesson Corporation [Member] \| Avenova Product [Member]
Revenue from Contract with Customer, Including Assessed Tax	232	170	519	113
McKesson Corporation [Member] \| Avenova Product [Member] \| Accounts Payable and Accrued Liabilities [Member]
Contract with Customer, Liability	700		700		$ 1,600
McKesson Corporation [Member] \| Avenova Product [Member] \| Prepaid Expenses and Other Current Assets [Member]
Contract with Customer, Rebate Liability, Current	141		141		0
Costco and Others [Member] \| DERMAdoctor [Member]
Revenue from Contract with Customer, Including Assessed Tax	100	$ 400	500	$ 400
Contract with Customer, Liability	$ 300		$ 300		$ 200