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Prepaid Expenses and Other Current Assets (Details) - USD ($)
Dec. 31, 2018
Jun. 30, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Prepaid insurance $ 87,234 $ 198,558
Retainers and deposits 6,089 11,089
Prepaid federal and state income taxes 438,453 231,920
Other prepaid expenses 62,779 82,940
Prepaid expenses and other current assets $ 594,555 $ 524,507