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5. STOCK-BASED COMPENSATION (Details - Options by exercise price) - $ / shares	9 Months Ended
	Mar. 31, 2021	Jun. 30, 2020
Option 1 [Member]
Range of exercise prices	0.48
Number of shares outstanding	60,000
Weighted average contractual life	5 years
Weighted average exercise price	$ 0.48
Exercisable number of shares	60,000
Exercisable weighted average exercise price	$ 0.48
Option 2 [Member]
Range of exercise prices	0.5
Number of shares outstanding	100,000
Weighted average contractual life	4 years 2 months 19 days
Weighted average exercise price	$ 0.5
Exercisable number of shares	100,000
Exercisable weighted average exercise price	$ 0.5
Option 3 [Member]
Range of exercise prices	0.55
Number of shares outstanding	40,000
Weighted average contractual life	3 years 2 months 1 day
Weighted average exercise price	$ 0.55
Exercisable number of shares	40,000
Exercisable weighted average exercise price	$ 0.55
Option 4 [Member]
Range of exercise prices	0.7
Number of shares outstanding	100,000
Weighted average contractual life	7 years 4 months 6 days
Weighted average exercise price	$ 0.7
Exercisable number of shares	100,000
Exercisable weighted average exercise price	$ 0.7
Option 5 [Member]
Range of exercise prices	0.73
Number of shares outstanding	758,000
Weighted average contractual life	5 years 7 months 10 days
Weighted average exercise price	$ 0.73
Exercisable number of shares	758,000
Exercisable weighted average exercise price	$ 0.73
Option 6 [Member]
Range of exercise prices	0.85
Number of shares outstanding	6,000
Weighted average contractual life	1 year 9 months 3 days
Weighted average exercise price	$ 0.85
Exercisable number of shares	6,000
Exercisable weighted average exercise price	$ 0.85
Option 7 [Member]
Range of exercise prices	0.9
Number of shares outstanding	36,000
Weighted average contractual life	3 years 2 months 8 days
Weighted average exercise price	$ 0.9
Exercisable number of shares	36,000
Exercisable weighted average exercise price	$ 0.9
Option 8 [Member]
Range of exercise prices	1.20
Number of shares outstanding	200,200
Weighted average contractual life	11 months 1 day
Weighted average exercise price	$ 1.20
Exercisable number of shares	200,200
Exercisable weighted average exercise price	$ 1.20
Option 9 [Member]
Range of exercise prices	1.25
Number of shares outstanding	45,000
Weighted average contractual life	8 years 11 months 19 days
Weighted average exercise price	$ 1.25
Exercisable number of shares	15,000
Exercisable weighted average exercise price	$ 1.25
Option 10 [Member]
Range of exercise prices	1.30
Number of shares outstanding	473,000
Weighted average contractual life	8 years 2 months 12 days
Weighted average exercise price	$ 1.30
Exercisable number of shares	169,177
Exercisable weighted average exercise price	$ 1.30
Option 11 [Member]
Range of exercise prices	1.40
Number of shares outstanding	70,000
Weighted average contractual life	9 years 7 months 21 days
Weighted average exercise price	$ 1.40
Exercisable number of shares	70,000
Exercisable weighted average exercise price	$ 1.40
Option 12 [Member]
Range of exercise prices	1.42
Number of shares outstanding	100,000
Weighted average contractual life	8 years 5 months 12 days
Weighted average exercise price	$ 1.42
Exercisable number of shares	33,334
Exercisable weighted average exercise price	$ 1.42
Option 13 [Member]
Range of exercise prices	1.450
Number of shares outstanding	5,000
Weighted average contractual life	9 years 11 months 8 days
Weighted average exercise price	$ 1.45
Exercisable number of shares	0
Exercisable weighted average exercise price	$ 0.00
Option 14 [Member]
Range of exercise prices	1.50
Number of shares outstanding	70,000
Weighted average contractual life	8 years 8 months 9 days
Weighted average exercise price	$ 1.50
Exercisable number of shares	70,000
Exercisable weighted average exercise price	$ 1.5
Option 15 [Member]
Range of exercise prices	1.795
Number of shares outstanding	15,000
Weighted average contractual life	9 years 10 months 14 days
Weighted average exercise price	$ 1.795
Exercisable number of shares	0
Exercisable weighted average exercise price	$ 0.00
Stock Options [Member]
Range of exercise prices	0.48–1.795
Number of shares outstanding	2,078,200	2,065,200
Weighted average contractual life	6 years 1 month 2 days
Weighted average exercise price	$ 0.99	$ 0.95
Exercisable number of shares	1,657,711
Exercisable weighted average exercise price	$ 0.9

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+ References

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Number of options outstanding, including both vested and non-vested options.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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