Revenue (Details) - USD ($)	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2020
Item Effected [Line Items]
Revenue	$ 7,265,515	$ 5,923,819
ASC 606 [Member]
Item Effected [Line Items]
Contract liabilities	2,247,848		$ 2,175,235
ASC 606 [Member] | Backlog [Member]
Item Effected [Line Items]
Intangible assets	$ 62,000,000
Percentage of estimated shipments	43% in 2021; 40% in 2022; 11% in 2023, and 6% thereafter.
ASC 606 [Member] | Units Delivered [Member]
Item Effected [Line Items]
Revenue	$ 5,858,706	5,118,314
ASC 606 [Member] | Milestones Achieved [Member]
Item Effected [Line Items]
Revenue	$ 1,406,809	$ 805,505