v3.26.1
Note 6 - Long-Term Debt (Details Textual)
12 Months Ended
Dec. 31, 2025
USD ($)
Rate
Dec. 31, 2024
USD ($)
Rate
Jun. 21, 2024
USD ($)
Jun. 20, 2024
USD ($)
Long-Term Debt $ 144,122,342 $ 140,949,072    
Dividends, Contingency, Maximum Amount Authorized from Total Leverage Ratio $ 3,000,000      
Total Leverage Ratio | Rate 0.0497%      
Dividends Authorized at Three Million or Less [Member]        
Dividends, Contingency, Total Leverage Ratio Required, Unlimited Dividends | Rate   0.035%    
Maximum [Member]        
Dividends, Contingency, Total Leverage Ratio Required | Rate 0.0425%      
Total Leverage Ratio | Rate 0.06%      
IRSAs With Co-Bank [Member] | Interest Rate Swap [Member]        
Debt Instrument, Face Amount $ 43,750,000      
Delayed Draw Term Loan (DDTL) [Member] | CoBank Credit Facility [Member]        
Long-Term Debt, Gross     $ 25,000,000  
CoBank [Member]        
Debt Instrument, Face Amount     180,000,000  
Long-Term Debt $ 102,400,000      
Debt, Weighted Average Interest Rate 7.32%      
CoBank [Member] | Revolving Credit Facility [Member]        
Debt Instrument, Face Amount $ 30,000,000      
Long-Term Debt, Gross 21,113,839 $ 18,500,823    
Line of Credit Facility, Maximum Borrowing Capacity 30,000,000   30,000,000 $ 40,000,000
Long-Term Line of Credit $ 21,113,839      
Line of Credit Facility, Commitment Fee Percentage 0.50%      
CoBank [Member] | Revolving Loan [Member]        
Debt Instrument, Interest Rate, Stated Percentage 3.75%      
CoBank [Member] | Term Loan [Member]        
Debt Instrument, Face Amount     $ 125,000,000  
CoBank [Member] | Delayed Draw Term Loan (DDTL) [Member]        
Debt Instrument, Face Amount $ 25,000,000      
Long-Term Debt 0      
Line of Credit Facility, Current Borrowing Capacity $ 8,900,000      
CoBank [Member] | Delayed Draw Term Loan (DDTL) [Member] | Debt Instrument, Redemption, Period One [Member]        
Debt Instrument, Number of Quarterly Periodic Payments 8      
Debt Instrument, Principal, Periodic Payment, Percentage of Outstanding Loan Balance 0.625%      
CoBank [Member] | Delayed Draw Term Loan (DDTL) [Member] | Debt Instrument, Redemption, Period Two [Member]        
Debt Instrument, Number of Quarterly Periodic Payments 4      
Debt Instrument, Principal, Periodic Payment, Percentage of Outstanding Loan Balance 1.25%      
CoBank [Member] | Term A1 Loan [Member]        
Debt Instrument, Face Amount $ 125,000,000      
Long-Term Debt, Gross 125,000,000 $ 125,000,000    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid $ 112,500,000      
CoBank [Member] | Term A1 Loan [Member] | Debt Instrument, Redemption, Period One [Member]        
Debt Instrument, Number of Quarterly Periodic Payments 8      
Debt Instrument, Periodic Payment, Principal $ 781,250      
CoBank [Member] | Term A1 Loan [Member] | Debt Instrument, Redemption, Period Two [Member]        
Debt Instrument, Number of Quarterly Periodic Payments 4      
Debt Instrument, Periodic Payment, Principal $ 1,562,500