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Revenue (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Revenues	$ 9,243,174	$ 9,922,171	$ 18,346,517	$ 19,431,143
PMO
Revenues	3,762,497	4,742,459	7,575,447	9,036,062
Infrared Products
Revenues	5,075,168	4,808,102	9,963,086	9,532,606
Specialty Products
Revenues	$ 405,509	$ 371,610	$ 807,984	$ 862,475

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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