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Summary of Significant Accounting Policies (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Revenue   $ 4,700,000    
Revenue recognized $ 260,000 $ 241,000 $ 498,000 $ 446,000
Mutual fund investments $ 1,300,000   $ 1,300,000  
Earnings, basic earnings per share $ 0.82 $ 0.46 $ 1.55 $ 0.87
Third Party [Member]        
Revenue recognized $ 1,200,000 $ 972,000 $ 2,500,000 $ 2,000,000.0
REAS [Member]        
Revenue recognized 180,000 181,000 388,000 388,000
CBRES [Member]        
Revenue recognized $ 1,800,000 $ 1,400,000 $ 3,800,000 $ 3,100,000