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OTHER INCOME - Interest Income on Loan Receivable (Details)
1 Months Ended 3 Months Ended
Dec. 31, 2020
USD ($)
item
Mar. 31, 2021
USD ($)
Other income    
Interest Income on Loan Receivable    
Interest income on loans   $ 46,000
Real Estate in Houston, TX    
Interest Income on Loan Receivable    
Number of properties sold | item 2  
Term of loan 1 year  
Percentage of seller-financing provided by the Company 50.00%  
Real Estate in Houston, TX | Other receivables    
Interest Income on Loan Receivable    
Seller-financing provided by the Company $ 4,612,500