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Income Taxes (Details) - USD ($)
3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2018
Jun. 30, 2017
Sep. 30, 2018
U.S. Federal statutory tax rate (as a percent)   35.00%   21.00%      
Net operating loss previous carryback period elimination         2 years    
Income tax expense (benefit) $ 101   $ (537,099)   $ 61,920 $ 297,220  
Effective tax rate benefit (as a percent) 0.00%   103.70%   (1.90%) 5.90%  
Change in valuation allowance $ 2,500,000   $ 500,000   $ 4,800,000 $ (1,400,000)  
Forecast              
U.S. Federal statutory tax rate (as a percent)             24.50%