Defined Benefit Pension Plan - Amounts recognized (Details) - USD ($)	Jun. 30, 2020	Jun. 30, 2019
Defined Benefit Pension Plan
Pension liability	$ (3,094,483)	$ (830,862)
Amounts recognized in accumulated other comprehensive loss consist of:
Accumulated pension actuarial loss, net of income tax benefit of $1,522,485 and $1,522,485, respectively	4,853,355	2,506,295
Accumulated pension actuarial loss, net of income tax benefit	$ 1,522,485	$ 1,522,485