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Income Taxes (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Jun. 30, 2020
Income Tax Disclosure [Abstract] |  |  |
Receivables of federal and state income taxes | $ 3,112,772 |  | $ 3,243,271
Income tax expense (benefit) | $ (2,302,178) | $ 517,983 |
Income tax expense, effective rates (as a percent) | 24.40% | 15.60% |
Net operating loss carryback | $ 512,042 |  | $ 0
Statutory federal tax rate | 21.00% | 21.00% |

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