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Condensed Consolidated Statements of Income and Shareholders' Equity (Parenthetical) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Income Statement [Abstract]        
Dividends on common stock, per share $ 0.07 $ 0.07 $ 0.07 $ 0.07
Common stock, shares outstanding 6,599,912 6,599,912 6,599,912 6,599,912
Basic income (loss) per common share, shares outstanding 6,599,912 6,599,912 6,599,912 6,599,912