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Stockholders' Equity Preferred Stock (Details) - shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Preferred Stock [Abstract]      
Preferred stock, shares authorized 10,000,000 10,000,000  
Preferred stock, shares issued 0 0  
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities 0 1,640,477 799,680