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Revenue (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Revenues	$ 8,305,412	$ 10,701,362	$ 26,651,929	$ 30,132,505
PMO
Revenues	4,033,218	3,904,857	11,608,665	12,940,919
Infrared Products
Revenues	3,725,684	6,462,527	13,688,770	15,995,133
Specialty Products
Revenues	$ 546,510	$ 333,978	$ 1,354,494	$ 1,196,453

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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