General form of registration statement for all companies including face-amount certificate companies

Investment in and Advances to Unconsolidated Joint Ventures (Details Narrative)

v3.20.4
Investment in and Advances to Unconsolidated Joint Ventures (Details Narrative) - USD ($)
9 Months Ended 12 Months Ended
Dec. 04, 2018
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Landsea Homes [Member]            
Impairment of real estate inventories    
Landsea Homes [Member] | LS-NJ Port Imperial JV LLC [Member]            
Ownership percentage   51.00%   51.00% 51.00%  
Impairment of real estate inventories   $ (13,800,000) (3,000,000)      
Landsea Homes [Member] | LS Boston Point LLC [Member]            
Ownership percentage   25.00%   25.00% 25.00%  
Landsea Homes [Member] | Joint Venture [Member]            
Impairment of real estate inventories   $ (27,094,000) $ (5,800,000) $ (5,800,000)
LS Boston Point LLC [Member]            
Ownership percentage       100.00% 100.00%  
Proceeds from sale of interest $ 50,764,158,000          
LS Boston Point LLC [Member] | Fenway Point Partners LLC [Member]            
Ownership percentage       50.00%    
LS Boston Point LLC [Member] | Point Condo Holdings LLC [Member]            
Ownership percentage       50.00%