v3.26.1
Note 7 - Loans Payable (Details Textual)
Jan. 01, 2026
Feb. 02, 2024
USD ($)
Feb. 01, 2024
USD ($)
Dec. 27, 2023
USD ($)
Sep. 15, 2021
USD ($)
Apr. 30, 2021
USD ($)
Apr. 01, 2021
Jan. 24, 2019
USD ($)
Mar. 31, 2026
USD ($)
a
Dec. 31, 2025
USD ($)
Jan. 01, 2025
Dec. 31, 2024
May 20, 2021
USD ($)
Mar. 21, 2018
USD ($)
Long-term Line of Credit, Total                 $ 10,790,194 $ 10,868,531        
Payments, Fees, Deferred Percentage     50.00%                      
Payment Outstanding Invoices   $ 200,000 $ 200,000                      
Payment of Future Outstanding Invoices     $ 477,829                      
Term Loan [Member]                            
Long-term Line of Credit, Total                 $ 4,532,886          
Debt Instrument, Face Amount         $ 4,950,000                  
Term Loan [Member] | If Maturity Date Is Extended [Member]                            
Debt Instrument, Covenant, Maximum Loan to Value Ratio of the Property         70.00%                  
Debt Instrument, Covenant, Minimum Debt Service Coverage Ratio         1.3                  
Extended Term Loan [Member]                            
Debt Instrument, Interest Rate, Stated Percentage         3.75%                  
Mortgage Loan [Member]                            
Debt Instrument, Face Amount       $ 1,500,000                    
Debt Instrument, Term 24 months     2 years                    
Debt Instrument, Interest Rate, Stated Percentage 15.00%                          
Debt Instrument, Face Amount       $ 1,500,000                    
Cortlandt Manor Medical Center [Member] | Asset Pledged as Collateral [Member]                            
Area of Real Estate Property | a                 5.01          
Real Estate Securing Mortgage Loan [Member] | Flowerfield Industrial Park [Member]                            
Area of Real Estate Property | a                 31.8          
Invoice Payable Through 2024 [Member]                            
Interest Accrued Monthly Rate, Percentage                       0.75%    
Invoice Payable Starting 2025 [Member]                            
Interest Accrued Monthly Rate, Percentage                     1.00%      
US Treasury (UST) Interest Rate [Member] | Extended Term Loan [Member]                            
Debt Instrument, Basis Spread on Variable Rate         2.75%                  
Prime Rate [Member] | Mortgage Loan [Member]                            
Debt Instrument, Basis Spread on Variable Rate       1.50%                    
Non-revolving Credit Line [Member]                            
Line of Credit Facility, Maximum Borrowing Capacity                           $ 3,000,000
Long-term Line of Credit, Total           $ 2,200,000     $ 1,806,228          
Non-revolving Credit Line [Member] | Federal Home Loan Bank Rate [Member] | After Interest Only Payment Period [Member]                            
Debt Instrument, Amortization Period (Year)             20 years              
Non-revolving Credit Line [Member] | Federal Home Loan Bank Rate [Member] | After Interest Only Payment Period [Member] | Minimum [Member]                            
Debt Instrument, Basis Spread on Variable Rate           3.85%                
Non-revolving Credit Line 2 [Member]                            
Line of Credit Facility, Maximum Borrowing Capacity               $ 3,000,000            
Long-term Line of Credit, Total                 $ 2,473,201       $ 3,000,000  
Non-revolving Credit Line 2 [Member] | After Interest Only Payment Period [Member]                            
Debt Instrument, Amortization Period (Year)               20 years            
Non-revolving Credit Line 2 [Member] | Federal Home Loan Bank Rate [Member] | After Interest Only Payment Period [Member] | Minimum [Member]                            
Debt Instrument, Basis Spread on Variable Rate               3.85%            
Non-revolving Credit Line 3 [Member]                            
Repayments of Debt         $ 1,050,000                  
Non-revolving Credit Line 3 [Member] | Term Loan [Member]                            
Debt Instrument, Term         5 years                  
Debt Instrument, Extension Term         5 years