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Note 9 - Bank Debt (Details Textual)
3 Months Ended 12 Months Ended 27 Months Ended
Jun. 30, 2021
USD ($)
Sep. 30, 2023
USD ($)
Dec. 31, 2022
Mar. 31, 2022
USD ($)
Dec. 31, 2020
USD ($)
Jun. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Mar. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Debt Service Charge Ratio               1.35      
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net               $ 97,522 $ 173,305    
Debt Instrument Debt Financing With Maine Community Bank [Member] | Line of Credit [Member]                      
Line of Credit Facility, Maximum Borrowing Capacity               1,000,000      
Maine Community Bank [Member] | Line of Credit [Member]                      
Long-Term Line of Credit               0 0    
Debt Instrument, Debt Financing [Member] | Maine Community Bank [Member]                      
Debt Instrument, Face Amount             $ 8,600,000        
Debt Instrument, Debt Financing One [Member] | Maine Community Bank [Member] | Mortgages [Member]                      
Debt Instrument, Face Amount             $ 5,100,000        
Debt Instrument, Interest Rate, Stated Percentage             3.50%       3.53%
Debt Instrument, Term (Year)             10 years        
Debt Instrument, Amortization Schedule (Year)             25 years        
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid       $ 3,687,751     $ 3,145,888     $ 3,687,751 $ 3,145,888
Debt Instrument, Principal, Outstanding Balance       $ 6,233,957           $ 6,233,957 $ 4,233,957
Debt Instrument, Debt Financing Two [Member] | Maine Community Bank [Member]                      
Debt Instrument, Face Amount             $ 3,500,000        
Debt Instrument, Interest Rate, Stated Percentage             3.50%        
Debt Instrument, Term (Year)                   7 years  
Debt Instrument, Amortization Schedule (Year)                   7 years  
Debt Instrument, Debt Financing Three [Member] | Maine Community Bank [Member] | Mortgages [Member]                      
Debt Instrument, Interest Rate, Stated Percentage       3.58%           3.58%  
Debt Instrument, Increase (Decrease), Net       $ (2,000,000)              
Debt Instrument, Debt Financing Three [Member] | Maine Technology Institute [Member]                      
Debt Instrument, Face Amount           $ 500,000          
Debt Instrument, Interest Rate, Stated Percentage     5.00%                
Debt Instrument, Term (Year)     5 years                
Debt Instrument, Period, Interest-free (Year)           2 years 3 months          
Debt Instrument, Periodic Payment, Interest           $ 0          
Debt Instrument, Periodic Payment, Principal           $ 0          
Debt Instrument, Debt Financing Four [Member] | Maine Community Bank [Member]                      
Debt Instrument, Face Amount         $ 1,500,000            
Debt Instrument, Interest Rate, Stated Percentage         3.50%            
Debt Instrument, Term (Year)         7 years            
Proceeds from Issuance of Long-Term Debt         $ 624,167            
Loan to Value Ratio         80            
Escrow Deposit         $ 1,400,000            
Debt Instrument, Debt Financing Five [Member] | Maine Technology Institute [Member]                      
Debt Instrument, Face Amount $ 400,000                    
Debt Instrument, Interest Rate, Stated Percentage 5.00%                    
Debt Instrument, Term (Year) 5 years 6 months                    
Debt Instrument, Period, Interest-free (Year) 2 years                    
Debt Instrument, Periodic Payment, Interest $ 0                    
Debt Instrument, Debt Financing Six [Member]                      
Debt Instrument, Amortization Schedule (Year)   7 years                  
Debt Instrument, Debt Financing Six [Member] | Maine Community Bank [Member]                      
Debt Instrument, Face Amount   $ 2,000,000                  
Debt Instrument, Interest Rate, Stated Percentage   7.00%                  
Debt Instrument, Refinanced, Amount               1,525,852 $ 0    
Debt Instrument, Debt Financing Six [Member] | Finance Authority of Maine [Member]                      
Debt Instrument, Face Amount   $ 1,000,000                  
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid   1,285,029                  
Debt Instrument, Debt Financing Seven [Member] | Finance Authority of Maine [Member]                      
Debt Instrument, Face Amount   $ 1,000,000                  
Debt Instrument, Interest Rate, Stated Percentage   8.00%                  
Debt Instrument, Amortization Schedule (Year)   7 years                  
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid   $ 649,267                  
Debt Instrument, Refinanced, Amount               768,209      
Debt Instrument, Debt Financing Eight [Member]                      
Debt Instrument, Face Amount               $ 2,327,119      
Debt Instrument, Interest Rate, Stated Percentage               6.50%      
Debt Instrument, Term (Year)               5 years      
Debt Instrument, Periodic Payment               $ 45,637