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Stockholders' Equity (Tables) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Jun. 30, 2018
Schedule of stock options activity | The following table summarizes the activity relating to the Company’s stock options for the nine months ended March 31, 2019:
|  | Options |  | Weighted-Average Exercise Price |  | Weighted Remaining Average Contractual Term |  | Aggregate Intrinsic Value
Outstanding at June 30, 2018 |  |  | 5,150,000 |  |  | $ | 0.12 |  |  |  | 5.8 |  |  | $ | — |
Granted |  |  | 2,100,000 |  |  | $ | 0.04 |  |  |  | 4.6 |  |  | $ | 88,370 |
Options Exercised or Forfeited |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | — |
Outstanding at March 31, 2019 |  |  | 7,250,000 |  |  | $ | 0.10 |  |  |  | 5.3 |  |  | $ | 166,175 |
Exercisable at March 31, 2019 |  |  | 6,250,000 |  |  | $ | 0.10 |  |  |  | 5.3 |  |  | $ | — |
The fair value of each option grant on the date of grant is estimated using the Black-Scholes Option – Pricing model reflecting the following weighted-average assumptions:
|  | March 31,
|  | 2019 |  | 2018
Expected life of options (In years) |  |  | 5 |  |  |  | 5 |
Expected volatility |  |  | 69.77 | % |  |  | 69.66 | %
Risk free interest rate |  |  | 2.60 | % |  |  | 1.59 | %
Dividend Yield |  |  | 0 | % |  |  | 0 | %
| The following is a summary of stock option activity for the years ended June 30, 2017 and 2018.
|  | Shares (Thousands) |  | Weighted-Average Exercise Price |  | Weighted Remaining Average Contractual Term
Options |  |  |  |  |  |
Outstanding at July 1, 2016 |  |  | 3,000 |  |  | $ | 0.06 |  |  |  | 6.5 |
Granted |  |  | 1,000 |  |  | $ | 0.24 |  |  |  | 4.0 |
Outstanding at June 30, 2017 |  |  | 4,000 |  |  | $ | 0.10 |  |  |  | 5.9 |
Granted |  |  | 1,250 |  |  | $ | 0.15 |  |  |  | 5.0 |
Options Exercised |  |  | (100) |  |  | $ | 0.02 |  |  |  | — |
Outstanding at June 30, 2018 |  |  | 5,150 |  |  | $ | 0.12 |  |  |  | 5.8 |
Exercisable at June 30, 2018 |  |  | 4,150 |  |  | $ | 0.13 |  |  |  | 4.8 |
Schedule of stock option plans by exercise price range | The following is a summary of stock options outstanding and exercisable by exercise price as of March 31, 2019:
|  |  |  | Weighted Average |  |
Exercise Price |  | Outstanding |  | Contract Life |  | Exercisable
$ | 0.03 |  |  |  | 700,000 |  |  |  | 4.8 |  |  |  | 700,000 |
$ | 0.05 |  |  |  | 1,300,000 |  |  |  | 4.6 |  |  |  | 1,300,000 |
$ | 0.06 |  |  |  | 3,100,000 |  |  |  | 6.9 |  |  |  | 2,100,000 |
$ | 0.07 |  |  |  | 100,000 |  |  |  | 4.5 |  |  |  | 100,000 |
$ | 0.10 |  |  |  | 500,000 |  |  |  | 3.8 |  |  |  | 500,000 |
$ | 0.20 |  |  |  | 200,000 |  |  |  | 3.5 |  |  |  | 200,000 |
$ | 0.21 |  |  |  | 550,000 |  |  |  | 3.1 |  |  |  | 550,000 |
$ | 0.22 |  |  |  | 100,000 |  |  |  | 3.0 |  |  |  | 100,000 |
$ | 0.23 |  |  |  | 200,000 |  |  |  | 3.4 |  |  |  | 200,000 |
$ | 0.25 |  |  |  | 500,000 |  |  |  | 2.6 |  |  |  | 500,000 |
| Total |  |  |  | 7,250,000 |  |  |  |  |  |  |  | 6,250,000 |
| The following is a summary of stock options outstanding and exercisable by exercise price as of June 30, 2018.
Exercise Price |  | Outstanding |  | Weighted Average Contract Life |  | Exercisable
$ | 0.06 |  |  |  | 31,00,000 |  |  |  | 6.5 |  |  |  | 21,00,000 |
$ | 0.10 |  |  |  | 5,00,000 |  |  |  | 4.8 |  |  |  | 5,00,000 |
$ | 0.20 |  |  |  | 2,00,000 |  |  |  | 4.5 |  |  |  | 2,00,000 |
$ | 0.21 |  |  |  | 5,50,000 |  |  |  | 4.1 |  |  |  | 5,50,000 |
$ | 0.22 |  |  |  | 1,00,000 |  |  |  | 4.0 |  |  |  | 1,00,000 |
$ | 0.23 |  |  |  | 2,00,000 |  |  |  | 4.4 |  |  |  | 2,00,000 |
$ | 0.25 |  |  |  | 5,00,000 |  |  |  | 3.6 |  |  |  | 5,00,000 |
| Total |  |  |  | 51,50,000 |  |  |  |  |  |  |  | 41,50,000 |
Warrant [Member] |  |
Schedule of stock options activity | The following table summarizes the warrants that have been issued:
|  |  |  | Weighted |  | Weighted Average |  | Aggregate
|  | Number of Shares |  | Average Exercise Price |  | Remaining Life (Years) |  | Intrinsic Value
Outstanding at June 30, 2018 |  |  | 4,774,015 |  |  | $ | 0.29 |  |  |  | 5.5 |  |  | $ | — |
Granted |  |  | 214,166,533 |  |  | $ | 0.02 |  |  |  | 5.3 |  |  | $ | 14,284,908 |
Expired |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | — |
Exercised |  |  | (2,500,000 | ) |  | $ | 0.02 |  |  |  | — |  |  | $ | — |
Outstanding and exercisable at March 31, 2019 |  |  | 216,440,548 |  |  | $ | 0.03 |  |  |  | 5.3 |  |  | $ | 14,284,908 |
| The following table summarizes the warrants that have been issued:
|  | Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Life (Years)
Outstanding at June 30, 2016 |  |  | 50,00,000 |  |  | $ | 0.50 |  |  |  | — |
Granted |  |  | 11,73,864 |  |  | $ | 0.51 |  |  |  | 3.5 |
Outstanding at June 30, 2017 |  |  | 61,73,864 |  |  | $ | 0.50 |  |  |  | 0.7 |
Granted |  |  | 36,00,151 |  |  | $ | 0.22 |  |  |  | 6.1 |
Expired |  |  | (50,00,000) |  |  | $ | 0.50 |  |  |  | — |
Outstanding at June 30, 2018 |  |  | 47,74,015 |  |  | $ | 0.29 |  |  |  | 5.5 |
Schedule of stock option plans by exercise price range |  | The following table summarizes the warrants by price:
Weighted Average Exercise Price |  | Number of Shares |  | Weighted Average Remaining Life (Years)
$ | 0.15 |  |  |  | 30,43,333 |  |  |  | 6.4 |
$ | 0.50 |  |  |  | 10,37,501 |  |  |  | 3.5 |
$ | 0.60 |  |  |  | 6,93,181 |  |  |  | 4.1 |
|  |  |  |  | 47,74,015 |  |  |  | 5.5 |

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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