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Note 5 - Asset Sale (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2022
Mar. 31, 2023
Mar. 31, 2022
Proceeds from Divestiture of Businesses   $ 17,300 $ 0
NEOS Brand [Member] | SureWerx [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]      
Disposal Group, Including Discontinued Operation, Consideration $ 5,800    
Proceeds from Divestiture of Businesses 5,500    
Disposal Group, Including Discontinued Operation, Consideration, Remaining Balance Deposited With Escrow Agent $ 300