Revenue (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019
Item Effected [Line Items]
Revenue	$ 7,286,674	$ 7,303,109	$ 13,210,493	$ 15,640,508
ASC 606 [Member]
Item Effected [Line Items]
Contract liabilities	1,803,340		1,803,340		$ 6,054
ASC 606 [Member] | Backlog [Member]
Item Effected [Line Items]
Intangible assets	58,400,000		$ 58,400,000
Percentage of estimated shipments			40% in 2020; 34% in 2021; 19% in 2022, and 7% thereafter.
ASC 606 [Member] | Units Delivered [Member]
Item Effected [Line Items]
Revenue	5,702,565	6,020,415	$ 10,820,879	12,873,185
ASC 606 [Member] | Milestones Achieved [Member]
Item Effected [Line Items]
Revenue	$ 1,584,109	$ 1,282,694	$ 2,389,614	$ 2,767,323