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CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares
Jun. 30, 2020
Dec. 31, 2019
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued 175,000 385,000
Preferred stock, shares outstanding 175,000 385,000
Common stock, par value $ 0.50 $ 0.50
Common stock, shares authorized 400,000,000 400,000,000
Common stock, shares issued 232,579,863 190,006,776
Common stock, shares outstanding 232,579,863 190,006,776
Series A 10% Convertible Preferred Stock    
Preferred stock, shares issued 210,000 210,000
Preferred stock, shares outstanding 210,000 210,000
Preferred stock, dividend rate 10.00% 10.00%
Series B 10% Convertible Preferred Stock    
Preferred stock, shares issued 175,000 175,000
Preferred stock, shares outstanding 175,000 175,000
Preferred stock, dividend rate 10.00% 10.00%