Revenue Recognition (Narrative) (Details) - USD ($)	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2019
Contract with Customer, Liability, Total	$ 111,030	$ 158,053
Contract with Customer, Liability, Total			$ 808,488
Minimum [Member]
Contract with Customer, Liability, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	1 year
Maximum [Member]
Contract with Customer, Liability, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	3 years