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1. Basis of Presentation and Summary of Significant Accounting Policies (Details Narrative) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Allowance for doubtful accounts on accounts receivables $ 0   $ 77,000
Allowance for losses on notes receivable $ 0 $ 1,447,340  
Anti-dilutive securities 293,000 29,000  
Buildings      
Estimated useful lives of property and equipment 40 years    
Building Improvements      
Estimated useful lives of property and equipment 15 years    
Computers, Furniture, and Equipment      
Estimated useful lives of property and equipment 5 to 7 years