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Income Taxes (Details) - USD ($)
3 Months Ended 6 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]        
Income tax expense $ 508,442 $ 859,695 $ 1,026,425 $ 2,176,047
Income tax expense, effective rates (as a percent)     18.40% 18.30%
Statutory federal tax rate     21.00% 21.00%