Stockholders' Equity - Schedule of Outstanding Stock Options (Details) - Stock Options [Member]	3 Months Ended
Mar. 31, 2019 $ / shares shares
Range of Exercise Prices, Lower Range Limit	$ 0.075
Range of Exercise Prices, Upper Range Limit	$ 0.50
Weighted Average residual life span (in years)	3 years 4 months 9 days
Outstanding Stock Options \| shares	20,121,000
Weighted Average Exercise Price	$ 0.24
Exercisable Stock Options \| shares	15,841,000
Weighted Average Exercise Price	$ 0.24
Exercise Price Range 1 [Member]
Range of Exercise Prices, Lower Range Limit	0.075
Range of Exercise Prices, Upper Range Limit	$ 0.09
Weighted Average residual life span (in years)	2 years 10 months 17 days
Outstanding Stock Options \| shares	2,281,000
Weighted Average Exercise Price	$ 0.09
Exercisable Stock Options \| shares	2,281,000
Weighted Average Exercise Price	$ 0.08
Exercise Price Range 2 [Member]
Range of Exercise Prices, Lower Range Limit	$ 0.11
Weighted Average residual life span (in years)	2 years 4 months 2 days
Outstanding Stock Options \| shares	3,500,000
Weighted Average Exercise Price	$ 0.11
Exercisable Stock Options \| shares	3,500,000
Weighted Average Exercise Price	$ 0.11
Exercise Price Range 3 [Member]
Range of Exercise Prices, Lower Range Limit	$ 0.12
Weighted Average residual life span (in years)	3 years 11 months 4 days
Outstanding Stock Options \| shares	6,800,000
Weighted Average Exercise Price	$ 0.12
Exercisable Stock Options \| shares	5,950,000
Weighted Average Exercise Price	$ 0.12
Exercise Price Range 4 [Member]
Range of Exercise Prices, Lower Range Limit	$ 0.22
Weighted Average residual life span (in years)	4 years 7 months 2 days
Outstanding Stock Options \| shares	2,165,000
Weighted Average Exercise Price	$ 0.22
Exercisable Stock Options \| shares	541,250
Weighted Average Exercise Price	$ 0.22
Exercise Price Range 5 [Member]
Range of Exercise Prices, Lower Range Limit	$ 0.27
Weighted Average residual life span (in years)	4 years 8 months 2 days
Outstanding Stock Options \| shares	2,875,000
Weighted Average Exercise Price	$ 0.27
Exercisable Stock Options \| shares	1,068,750
Weighted Average Exercise Price	$ 0.27
Exercise Price Range 6 [Member]
Range of Exercise Prices, Lower Range Limit	$ 0.50
Weighted Average residual life span (in years)	5 years 7 months 21 days
Outstanding Stock Options \| shares	2,500,000
Weighted Average Exercise Price	$ 0.50
Exercisable Stock Options \| shares	2,500,000
Weighted Average Exercise Price	$ 0.50

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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 (g)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

+ 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 (c)(iii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ 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 (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ 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 (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

+ 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
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
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