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Earnings Per Share and Equity Transactions - Reconciliation of Basic and Diluted Income per Share (Details) - USD ($)
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Numerator:    
Net loss $ (100,000) $ (3,486,000)
Earnings allocated to unvested restricted shares 0 0
Net loss attributed to common shareholders $ (100,000) $ (3,486,000)
Denominator:    
Weighted average number of common shares outstanding - basic (in shares) 719,462,786 720,825,864
Effect of unvested restricted shares (in shares) 0 0
Weighted average number of common shares outstanding - diluted (in shares) 719,462,786 720,825,864
Basic and diluted earnings per common share:    
Net loss per common share, basic and diluted (in dollars per share) $ 0 $ 0