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Pension Expense (Details)
12 Months Ended
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2016
Retirement Benefits [Abstract]      
Defined benefit contributions and expenses $ 129,095 $ 99,031  
Increase in contribution, hourly rate     0.04
Employer matching contibutions of 401(k) plan (percentage) 10.00% 10.00%  
Employer matching contributions to 401(k) plan $ 57,581 $ 52,225