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Earnings Per Share (Details Textual) - shares
shares in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Earnings Per Share [Abstract]        
Antidilutive securities excluded from computation of earnings per share, amount (in shares) 15 0 15 800