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Share-Based Payment Arrangements (Details 4) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Share-based compensation expense $ 64,672 $ 422,953
Restricted stock and restricted stock units | Directors, officers, and employees    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Share-based compensation expense $ (49,289) $ 167,369