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Note 3 - Business Combination (Details Textual)
$ in Millions
9 Months Ended 12 Months Ended
Nov. 05, 2021
USD ($)
Sep. 30, 2022
Dec. 31, 2021
USD ($)
Number of Operating Segments   2  
General and Administrative Expense [Member]      
Business Combination, Acquisition Related Costs     $ 1.2
DERMAdoctor [Member]      
Payments to Acquire Businesses, Gross $ 12.0    
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High $ 3.0