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Income Taxes (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Income Taxes (Details) [Line Items]        
Income tax expense from continuing operations $ 1,100 $ 2,500 $ 159,265  
Effective tax rate from statutory rate 0.11% 0.57% 21.00% 21.00%
Effective tax rate differs from the statutory rate 21.00% 21.00%    
Income tax expense from discontinued operations     $ 159,265  
Valuation allowance increased     446,075  
Net operating loss carryforwards     $ 1,200,000  
Annual limitation description     which $14.4 million may be subject to a significant annual limitation under Section 382 of the Internal Revenue Code. Of the $18.3 million, approximately, $17.1 million will expire in 2030 to 2037, if not utilized. The remaining $1.2 million may be carried forward indefinitely.  
State and local taxes [Member]        
Income Taxes (Details) [Line Items]        
Income tax provision     $ 387 $ 17,672
Federal Tax [Member]        
Income Taxes (Details) [Line Items]        
Net operating loss carryforwards     $ 18,300,000