v3.26.1
Note 7 - Real Estate Development (Details Textual)
 3 Months Ended 6 Months Ended 12 Months Ended
Jan. 08, 2026
USD ($)
Jan. 25, 2022
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Dec. 30, 2025
USD ($)
Dec. 18, 2024
USD ($)
Sep. 20, 2023
a
ft²
Dec. 31, 2021
USD ($)
Dec. 21, 2021
USD ($)
Jul. 30, 2020
a
Jul. 01, 2020
Jun. 16, 2020
a
Sep. 27, 2018
a
Income (Loss) from Equity Method Investments     $ (1,048,807) $ (1,389,604) $ (2,265,601) $ (2,962,766)                    
Investee Losses in Excess of Equity Investment     9,145,521   9,145,521   $ 8,521,464                  
Payments to Acquire Equity Method Investments         1,470,807 (0)                    
Proceeds from Equity Method Investment, Distribution, Return of Capital         75,473 37,295                    
TIF Improvement Costs                     $ 23,336,500          
Estimated Cost of Tax Increment Financing Eligible Improvements, Expected Reduction   $ 5,744,000                            
Estimated Cost of Tax Increment Financing Eligible Improvements, Maximum Principle   $ 17,592,881                            
Income Taxes Receivable, Noncurrent     20,558,288   20,558,288   19,986,287                  
Proceeds from Interest Received     0   0   582,000                  
Income Tax Jurisdiction, Domestic State and Local [Member]                                
Income Taxes Receivable, Noncurrent     20,558,000   20,558,000   19,986,000                  
Income Tax Receivable Principal     16,394,000   16,394,000   16,305,000                  
Income Tax Receivable Interest     4,164,000   4,164,000   3,681,000                  
Indemnity Agreement [Member]                                
Debt Instrument, Maximum Reimbursement and Indemnification Amount     7,750,000   7,750,000             $ 5,000,000        
Doran Canterbury I Joint Venture [Member]                                
Area of Land (Acre) | a                               13
Equity Method Investment, Ownership Percentage                               27.40%
Income (Loss) from Equity Method Investments     (445,080) (839,709) (1,046,746) (1,836,369)                    
Investee Losses in Excess of Equity Investment     8,802,000   8,802,000   7,755,000                  
Proceeds from Equity Method Investment, Distribution, Return of Capital     (0) (0) (0) (0)                    
Doran Canterbury I Joint Venture [Member] | Indemnity Agreement [Member]                                
Debt Instrument, Maximum Reimbursement and Indemnification Amount               $ 7,750,000                
Doran Canterbury II [Member]                                
Area of Land (Acre) | a                         10      
Equity Method Investment, Ownership Percentage                         27.40%      
Income (Loss) from Equity Method Investments     (485,258) (463,035) (1,043,716) (974,928)                    
Investee Losses in Excess of Equity Investment     344,000   344,000   $ 766,000                  
Payments to Acquire Equity Method Investments $ 1,466,405                              
Proceeds from Equity Method Investment, Distribution, Return of Capital     (0) (0) (0) (0)                    
Doran Canterbury II [Member] | Indemnity Agreement [Member]                                
Debt Instrument, Maximum Reimbursement and Indemnification Amount     2,750,000   2,750,000     $ 2,750,000 $ 1,000,000              
Canterbury DBSV [Member]                                
Area of Land (Acre) | a                             13  
Equity Method Investment, Ownership Percentage                           61.87%    
Income (Loss) from Equity Method Investments     (92,000) (69,000) (127,000) (134,000)                    
Proceeds from Equity Method Investment, Distribution, Return of Capital     38,000 19,000 75,000 37,000                    
Trackside Investments, LLC [Member]                                
Area of Land (Acre) | a                   3.5            
Equity Method Investment, Ownership Percentage                   50.00%            
Income (Loss) from Equity Method Investments     $ (26,000) $ (18,000) $ (48,000) $ (18,000)                    
Area of Real Estate Property (Square Foot) | ft²                   16,000            
Equity Method Investment, Annual Preferred Return Percentage                   6.00%