Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

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

+ 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

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 (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

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.

+ 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 (g)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

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.

+ 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 (e)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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Stock Options And Warrants (Summary Of Weighted Average Remainining Contractual Life Of Options) (Details) - $ / shares	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options outstanding	154,800,000	134,800,000	123,000,000	123,000,000
Stock Options [Member] \| Exercise Price 0.050 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excerise prices	$ 0.050
Number of options outstanding	1,800,000
Weighted Average remaining contractual life (years)	4 years 2 months 19 days
Stock Options [Member] \| Exercise Price 0.040 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excerise prices	$ 0.040
Number of options outstanding	20,000,000
Weighted Average remaining contractual life (years)	4 years 6 months 7 days
Stock Options [Member] \| Exercise Price 0.015 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excerise prices	$ 0.015
Number of options outstanding	35,000,000
Weighted Average remaining contractual life (years)	4 years 1 month 28 days
Stock Options [Member] \| Exercise Price 0.013 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excerise prices	$ 0.013
Number of options outstanding	60,000,000
Weighted Average remaining contractual life (years)	3 years 7 months 6 days
Stock Options [Member] \| Exercise Price 0.013 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excerise prices	$ 0.013
Number of options outstanding	15,000,000
Weighted Average remaining contractual life (years)	3 years 8 months 19 days
Stock Options [Member] \| Exercise Price 0.010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excerise prices	$ 0.010
Number of options outstanding	10,000,000
Weighted Average remaining contractual life (years)	4 years 1 month 2 days
Stock Options [Member] \| Exercise Price 0.005 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excerise prices	$ 0.005
Number of options outstanding	12,500,000
Weighted Average remaining contractual life (years)	1 year 1 month 13 days
Stock Options [Member] \| Exercise Price 0.004 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excerise prices	$ 0.004
Number of options outstanding	500,000
Weighted Average remaining contractual life (years)	3 years 3 months 14 days