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Earnings Per Common Share (Details Textual)
3 Months Ended 6 Months Ended
Jun. 30, 2019
$ / shares
shares
Jun. 30, 2019
$ / shares
shares
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares 12,000 12,000
Maximum [Member]    
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Price Of Anti Dilutive Option Amount $ 4.22 $ 4.22
Minimum [Member]    
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Price Of Anti Dilutive Option Amount $ 4.19 $ 4.19