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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2020
Fair Value Disclosures [Abstract]  
Schedule of aggregate fair values of the non-financial assets by their levels in the fair value hierarchy
    As of December 31, 2020 
    Total    Level 1    Level 2    Level 3 
Investment in Avalon Jubilee, LLC  $-   $-   $-   $- 
    As of December 31, 2019 
    Total    Level 1    Level 2    Level 3 
Investment in Avalon Jubilee, LLC  $-   $-   $-   $- 
   As of December 31, 2018 
   Total   Level 1   Level 2   Level 3 
Investment in Avalon Jubilee, LLC  $82,975   $   $   $82,975 
   As of December 31, 2017 
   Total   Level 1   Level 2   Level 3 
Investment in Avalon Jubilee, LLC  $4,247,977   $   $   $4,247,977 
Schedule of determining the fair value of these real estate partnership investment
    

Range

  

Range

 
    

December 31,
2020

  

December 31,
2019

  

December 31,
2018

  

December 31,
2017

 

Unobservable Quantitative Input

                 
Discount rates   16% to 20%   18% to 22%   18% to 22%   15% 
Schedule of changes in the fair value of real estate fund investments that are classified as level 3
   For the Year Ended December 31, 
   2020   2019   2018   2017 
                 
Beginning Balance  $-0-   $82,975   $4,247,977   $-0- 
Net unrealized gain(loss) on held investment   -0-    (82,975)   (4,255,383)   116,331 
Purchase /additional funding   -0-    -0-    90,381    4,131,646 
Ending balance  $-0-   $-0-   $82,975   $4,247,977