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Note 12 - Long-term Debt (Details Textual)
9 Months Ended
Sep. 30, 2023
USD ($)
Dec. 31, 2023
Sep. 22, 2023
USD ($)
Sep. 21, 2023
USD ($)
Dec. 31, 2022
USD ($)
Jun. 30, 2022
USD ($)
Dec. 31, 2021
Dec. 06, 2021
USD ($)
Aug. 12, 2019
USD ($)
Long-Term Debt $ 27,537,830                
Long-Term Debt, Current Maturities 806,485       $ 1,545,090        
First National Bank of Omaha [Member]                  
Line of Credit Facility, Maximum Borrowing Capacity 10,000,000   $ 10,000,000 $ 5,000,000         $ 40,000,000
Credit Agreement, Maximum Dividend Amount           $ 8,125,000      
Long-term Line of Credit, Total $ 0                
Minimum Consolidated Leverage Ratio Requirement         3.25   3.5    
First National Bank of Omaha [Member] | Forecast [Member]                  
Minimum Consolidated Leverage Ratio Requirement   3              
Consolidated Fixed Charge Ratio Requirement   1.15              
First National Bank of Omaha [Member] | Revolving Credit Facility [Member] | Prime Rate [Member] | Minimum [Member]                  
Debt Instrument, Basis Spread on Variable Rate 0.65%                
First National Bank of Omaha [Member] | Revolving Credit Facility [Member] | Prime Rate [Member] | Maximum [Member]                  
Debt Instrument, Basis Spread on Variable Rate 1.15%                
First National Bank of Omaha [Member] | Term Loan 1 [Member]                  
Debt Instrument, Face Amount               $ 30,000,000 18,000,000
Debt Instrument, Interest Rate, Stated Percentage               4.00%  
Long-Term Debt, Gross $ 30,000,000                
Long-Term Debt 27,537,830                
Long-Term Debt, Current Maturities $ 806,485                
First National Bank of Omaha [Member] | Term Loan 2 [Member]                  
Debt Instrument, Face Amount                 $ 5,500,000