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Earnings Per Share (Details Textual) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Earnings Per Share (Textual) [Abstract]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 1,445,986 923,588 1,355,247 852,318