Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Debt (Details Textual)

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Note 8 - Debt (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Mar. 05, 2018
Jun. 30, 2024
Sep. 30, 2023
Nov. 01, 2022
Credit Agreement [Member]        
Debt Instrument, Face Amount $ 10,000      
Long-Term Debt $ 0      
Residual Royalty Financing Agreement [Member]        
Royalty Agreement, Payment, Percentage 5.00%      
Residual Royalty Financing Agreement [Member] | Scenario, Change of Control or Sale of Business [Member]        
Royalty Agreement, Payment, Percentage 5.00%      
Royalty Agreement, Payment to Agent $ 2,000      
Credit Agreement and Residual Royalty Financing Agreement [Member]        
Debt Instrument, Face Amount $ 10,000      
Debt Instrument, Repaid, Principal   $ 10,000    
Premium Finance Agreement [Member]        
Debt Instrument, Face Amount       $ 1,400
Debt Instrument, Interest Rate, Stated Percentage       6.30%
Accrued Liabilities and Other Liabilities   $ 0 $ 100