Stockholders' Equity - Schedule of Stock Options Granted (Details) - $ / shares	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Equity [Abstract]
Number of stock options balance, beginning of period	20,121,000	9,625,000
Number of stock options, granted		6,800,000
Number of stock options, expired		72,000
Number of stock options, cancelled, forfeited
Number of stock options, exercised
Number of stock options balance, end of period	20,121,000	16,353,000
Number of stock options, exercisable	15,841,000	10,167,666
Weighted average exercise price balance, beginning of period	$ 0.24	$ 0.21
Weighted average exercise price, stock options granted		0.12
Weighted average exercise price, stock options expired		0.37
Weighted average exercise price, stock options cancelled, forfeited
Weighted average exercise price, stock options exercised
Weighted average exercise price balance, end of period	0.24	0.17
Weighted average exercise price, exercisable	$ 0.24	$ 0.20

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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