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5. STOCK-BASED COMPENSATION (Details - Stock based compensation) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Stock based compensation expense	$ 86,027	$ 75,567	$ 314,252	$ 426,778
Cost of Goods Sold [Member]
Stock based compensation expense	11,233	11,233	33,699	33,699
Research and Development Expenses [Member]
Stock based compensation expense	19,435	21,346	55,795	46,714
Selling, General and Administrative Expenses [Member]
Stock based compensation expense	$ 55,359	$ 42,988	$ 224,758	$ 346,365

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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