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SUBSEQUENT EVENTS (Narrative) (Details)
Apr. 15, 2020
USD ($)
a
Apr. 07, 2020
USD ($)
a
Mar. 13, 2020
USD ($)
a
Jul. 30, 2020
a
Jun. 30, 2020
USD ($)
Aug. 18, 2018
a
Subsequent Event [Line Items]            
Current portion of related party receivable | $         $ 3,208,000  
Doran Canterbury II [Member]            
Subsequent Event [Line Items]            
Area of land           10
Ownership percentage in investment project           27.40%
Doran Canterbury II [Member] | Doran Canterbury II, LLC [Member]            
Subsequent Event [Line Items]            
Ownership percentage in investment project           72.60%
Scenario, Plan [Member]            
Subsequent Event [Line Items]            
Area of land 2.4 11.3 12      
Proceeds from sale of land held-for-investment | $ $ 1,100,000 $ 2,400,000 $ 2,500,000,000,000      
Subsequent Event [Member] | Doran Canterbury II [Member]            
Subsequent Event [Line Items]            
Area of land       10    
Ownership percentage in investment project       27.40%    
Subsequent Event [Member] | Doran Canterbury II [Member] | Doran Canterbury II, LLC [Member]            
Subsequent Event [Line Items]            
Ownership percentage in investment project       72.60%