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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Convertible Subordinated Debt, Discount $ 3,300,000 $ 3,700,000
Note payable, discount $ 200,000 $ 0
Preferred stock, par value per share (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized 2,500,000 2,500,000
Common stock, par value per share (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 45,892,448 39,837,058
Common stock, shares outstanding 45,892,448 39,837,058
Class A convertible preferred stock [Member]    
Preferred stock, par value per share (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized 800,000 800,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Class B convertible preferred stock [Member]    
Preferred stock, par value per share (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized 585,000 585,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Class C convertible preferred stock    
Preferred stock, par value per share (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized 250,000 250,000
Preferred stock, shares issued 200,000 200,000
Preferred stock, shares outstanding 200,000 200,000