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Note 1 - Basis of Presentation and Nature of Operations (Details Textual)
1 Months Ended 9 Months Ended 12 Months Ended 18 Months Ended
Jun. 30, 2024
shares
Sep. 30, 2024
ft²
a
shares
Dec. 31, 2024
USD ($)
Sep. 30, 2024
USD ($)
ft²
a
shares
Mar. 31, 2024
shares
Sep. 30, 2023
Management Advisory Services [Member] | Related Captive Managing General Agency [Member]            
Related Party Transaction, Amounts of Transaction       $ 200,000    
Management Advisory Services [Member] | Related Captive Managing General Agency [Member] | Forecast [Member]            
Related Party Transaction, Amounts of Transaction     $ 200,000      
Management Advisory Services [Member] | Reinsurance Intermediary [Member]            
Related Party Transaction, Amounts of Transaction       $ 50,000    
HC Government Realty Trust, Inc [Member]            
Ownership Percentage   28.00%   28.00%    
HC Government Realty Trust, Inc [Member] | Common Stock of Investee [Member]            
Investment Owned, Balance, Shares (in shares) | shares 250 250   250 300,000  
HC Government Realty Trust, Inc [Member] | Series B Cumulative Convertible Preferred Stock [Member]            
Investment Owned, Balance, Shares (in shares) | shares   1,025,000   1,025,000    
Investment Interest Rate   10.00%   10.00%    
HC Government Realty Trust, Inc [Member]            
Area of Real Estate Property (Square Foot) | a   626,000   626,000    
Number of Real Estate Properties   32   32    
Number of States in which Entity Operates   21   21    
Percentage of Real Estate Leased to Government   97.00%   97.00%    
Number of Government Agencies   12   12    
Weighted Average Lease Term, No Early Termination (Year)   8 years 8 months 12 days        
Weighted Average Lease Term, With Early Termination (Year)   5 years        
HC Government Realty Trust, Inc [Member] | Wholly Owned Properties [Member]            
Number of Real Estate Properties   31   31    
HC Government Realty Trust, Inc [Member] | Subject to Ground Lease [Member]            
Number of Real Estate Properties   1   1    
HC Government Realty Trust, Inc [Member] | Reverse Stock Split [Member]            
Stockholders' Equity Note, Stock Split, Conversion Ratio 1,200          
HC Government Realty Trust, Inc [Member] | Minimum [Member]            
Area of Real Estate Property (Square Foot) | ft²   10,000   10,000    
HC Government Realty Trust, Inc [Member] | Maximum [Member]            
Area of Real Estate Property (Square Foot) | ft²   100,000   100,000    
Protected Cell [Member] | Catastrophic Windstorm Reinsurance Protection [Member]            
Reinsurance, Reinsurance Protection, Number of Insurance Policies In-force   0   0   0