Annual report pursuant to Section 13 and 15(d)

Note 10 - Debt (Details Textual)

v3.24.3
Note 10 - Debt (Details Textual)
1 Months Ended 12 Months Ended
Aug. 05, 2024
Apr. 27, 2022
USD ($)
Mar. 31, 2021
USD ($)
Sep. 30, 2024
USD ($)
Sep. 30, 2024
EUR (€)
Sep. 30, 2023
USD ($)
Sep. 30, 2023
EUR (€)
Sep. 30, 2022
USD ($)
Sep. 30, 2022
EUR (€)
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]   us-gaap:SecuredOvernightFinancingRateSofrMember              
Senior Loan Agreement [Member]                  
Debt Instrument, Face Amount     $ 2,000,000            
Debt Instrument, Term (Year)     3 years            
Debt Instrument, Covenant, Interest Payment Cap     5.00%            
Debt Instrument, Covenant, Interest Penalty     2.00%            
Long-Term Debt       $ 2,228,000 € 2,000,000 $ 2,112,000 € 2,000,000 $ 1,966,000 € 2,000,000
Revolving Credit Facility [Member] | Loan and Security Agreement With Bremer Bank, National Association [Member]                  
Line of Credit Facility, Maximum Borrowing Capacity   $ 40,000,000              
Debt Instrument, Basis Spread on Variable Rate   1.85%              
Debt Instrument, Minimum Interest Rate Required   1.80%              
Debt Instrument, Interest Rate During Period       7.05%          
Debt Instrument, Covenant, Minimum Debt Service Coverage Ratio 1.2 1.2              
Debt Instrument, Covenant, Maximum Debt to Cash Flow Ratio 2 2              
Long-Term Line of Credit           $ 16,700,000      
Debt Instrument, Collateral Amount       $ 300,472,000