v3.25.4
Note 3 - Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Debt Instrument, Fair Value Disclosure $ 42,369 $ 44,352  
Collateralized Debt Obligations [Member]      
Revenue from Contract with Customer, Excluding Assessed Tax $ 965 $ 7,852  
Furniture and Equipment [Member] | Minimum [Member]      
Property, Plant and Equipment, Useful Life (Year) 3 years    
Furniture and Equipment [Member] | Maximum [Member]      
Property, Plant and Equipment, Useful Life (Year) 5 years    
Leasehold Improvements [Member] | Minimum [Member]      
Property, Plant and Equipment, Useful Life (Year) 5 years    
Leasehold Improvements [Member] | Maximum [Member]      
Property, Plant and Equipment, Useful Life (Year) 10 years    
COHN, LLC [Member]      
Noncontrolling Interest, Voting Interest, Ownership Percentage by Parent 51.00% 51.00%  
Noncontrolling Interest, Economic Interest, Ownership Percentage by Parent 29.80% 28.70%  
Subsidiary, Ownership Percentage, Parent 70.40% 71.60% 72.60%