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Schedule of Components of Preferred Stock (Details) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
Jun. 28, 2019
Aug. 10, 2018
Nov. 11, 2020
Jun. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Class of Stock [Line Items]            
Preferred stock, components value         $ 55,653,730  
Conversion of preferred stock into common stock         300,000  
Preferred stock, components value       $ 18,415,992 18,415,992 $ 55,653,730
Legal fees and other costs         $ (323,137) $ (202,382)
Series H Preferred Stock [Member]            
Class of Stock [Line Items]            
Preferred stock, shares issued         19,400  
Preferred stock, components value         $ 18,045,496  
Issuance of Preferred Stock. shares         108  
Issuance of Preferred Stock         $ 130,896  
Stock issuance cost   $ (18,045,496)     (17,896)  
Net proceeds received upon issuance of preferred stock   $ 19,399,250     $ 113,000  
Conversion of preferred stock into common stock, shares         (300)  
Conversion of preferred stock into common stock         $ (300,000)  
Issuance of preferred stock upon conversion, shares         389  
Issuance of preferred stock upon conversion         $ 389,000  
Net issuance of Preferred Stock, shares         197  
Net issuance of Preferred Stock         $ 202,000  
Preferred stock, shares issued         19,597 19,400
Preferred stock, components value         $ 18,247,496 $ 18,045,496
Beneficial conversion feature         $ 502,000  
Series l Preferred Stock [Member]            
Class of Stock [Line Items]            
Preferred stock, shares issued         23,100  
Preferred stock, components value         $ 19,699,742  
Issuance of Preferred Stock. shares           23,100
Issuance of Preferred Stock           $ 23,100,000
Stock issuance cost           $ (1,459,858)
Net proceeds received upon issuance of preferred stock $ 23,100,000          
Conversion of preferred stock into common stock, shares         (23,100)  
Conversion of preferred stock into common stock         $ (19,699,742)  
Preferred stock, shares issued 23,100       23,100
Preferred stock, components value         $ 19,699,742
Beneficial conversion feature         $ 5,082,000  
Cash paid to B. Riley FBR as placement fee           (1,386,000)
Legal fees and other costs           (73,858)
Less Liquidated Damages recognized upon issuance           (1,940,400)
Total issuance costs and Liquidated Damages           $ (3,400,258)
Series J Convertible Preferred Stock [Member]            
Class of Stock [Line Items]            
Preferred stock, shares issued         20,000  
Preferred stock, components value         $ 17,739,996  
Issuance of Preferred Stock. shares         10,500 20,000
Issuance of Preferred Stock         $ 6,000,000 $ 20,000,000
Stock issuance cost         (580,004)
Net proceeds received upon issuance of preferred stock         $ 6,000,000 $ 15,000,000
Conversion of preferred stock into common stock, shares         (30,500)  
Conversion of preferred stock into common stock         $ (23,739,996)  
Issuance of preferred stock upon conversion, shares         30,500  
Net issuance of Preferred Stock, shares           15,000
Net issuance of Preferred Stock           $ 15,000,000
Preferred stock, shares issued         20,000
Preferred stock, components value         $ 17,739,996
Beneficial conversion feature         586,545  
Cash paid to B. Riley FBR as placement fee           (525,240)
Legal fees and other costs           (54,764)
Less Liquidated Damages recognized upon issuance           (1,680,000)
Total issuance costs and Liquidated Damages           $ (2,260,004)
shares issued for payment of debt, shares           (5,000)
shares issued for payment of debt           $ (5,000,000)
Net issuance of Series H Preferred Stock           $ 17,739,996
Issuance of preferred stock upon conversion         $ 23,739,996  
Series K Preferred Stock [Member]            
Class of Stock [Line Items]            
Issuance of Preferred Stock. shares         18,042  
Issuance of Preferred Stock         $ 18,042,000  
Stock issuance cost         $ (560,500)  
Net proceeds received upon issuance of preferred stock     $ 18,042,000      
Conversion of preferred stock into common stock, shares         (18,042)  
Conversion of preferred stock into common stock         $ (17,481,500)  
Issuance of preferred stock upon conversion         $ 17,481,500  
Preferred stock, shares issued     18,042    
Preferred stock, components value          
Beneficial conversion feature         9,472,050  
Cash paid to B. Riley FBR as placement fee         (440,500)  
Legal fees and other costs         $ (120,000)  
Issuance of Preferred Stock on October 23, 2020, shares         6,750  
Issuance of Preferred Stock on October 23, 2020         $ 6,750,000  
Issuance of Series K Preferred Stock on October 28, 2020, shares         5,292  
Issuance of Series K Preferred Stock on October 28, 2020         $ 5,292,000  
Issuance of Series K Preferred Stock on November 11, 2020, shares         6,000  
Issuance of Series K Preferred Stock on November 11, 2020         $ 6,000,000