Revenue (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Revenues	$ 9,922,171	$ 9,599,912	$ 19,431,143	$ 17,151,842
PMO
Revenues	4,742,459	3,710,549	9,036,062	6,895,007
Infrared Products
Revenues	4,808,102	5,003,874	9,532,606	8,963,499
Specialty Products
Revenues	$ 371,610	$ 885,489	$ 862,475	$ 1,293,336