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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-Name Accounting Standards Codification

-Topic 718

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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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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including 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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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.

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Stockholders' Equity (Details 2) (USD $)	12 Months Ended
Stockholders' Equity (Details 2) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Options outstanding
Outstanding at December 31, 2012	3,530,085	4,423,335	4,787,085
Weighted-Average Remaining Contractual Life	4 years 9 months 18 days
Weighted-Average Exercise Price	$ 0.24	$ 0.31	$ 0.41
Exercisable at December 31, 2012	1,959,669
Weighted-Average Exercise Price	$ 0.31
0.01 - 0.19 [Member]
Options outstanding
Range of Exercise Prices, lower limit	$ 0.01
Range of Exercise Prices, upper limit	$ 0.19
Outstanding at December 31, 2012	1,485,000
Weighted-Average Remaining Contractual Life	6 years
Weighted-Average Exercise Price	$ 0.12
Exercisable at December 31, 2012	370,278
Weighted-Average Exercise Price	$ 0.16
0.20 - 0.29 [Member]
Options outstanding
Range of Exercise Prices, lower limit	$ 0.20
Range of Exercise Prices, upper limit	$ 0.29
Outstanding at December 31, 2012	886,335
Weighted-Average Remaining Contractual Life	4 years 2 months 12 days
Weighted-Average Exercise Price	$ 0.25
Exercisable at December 31, 2012	626,613
Weighted-Average Exercise Price	$ 0.25
0.30 - 0.39 [Member]
Options outstanding
Range of Exercise Prices, lower limit	$ 0.30
Range of Exercise Prices, upper limit	$ 0.39
Outstanding at December 31, 2012	772,500
Weighted-Average Remaining Contractual Life	4 years 3 months 18 days
Weighted-Average Exercise Price	$ 0.35
Exercisable at December 31, 2012	576,528
Weighted-Average Exercise Price	$ 0.35
0.40 - 0.49 [Member]
Options outstanding
Range of Exercise Prices, lower limit	$ 0.40
Range of Exercise Prices, upper limit	$ 0.49
Outstanding at December 31, 2012	376,250
Weighted-Average Remaining Contractual Life	2 years 1 month 6 days
Weighted-Average Exercise Price	$ 0.46
Exercisable at December 31, 2012	376,250
Weighted-Average Exercise Price	$ 0.46
0.60 - 0.69 [Member]
Options outstanding
Range of Exercise Prices, lower limit	$ 0.60
Range of Exercise Prices, upper limit	$ 0.69
Outstanding at December 31, 2012	10,000
Weighted-Average Remaining Contractual Life	1 year
Weighted-Average Exercise Price	$ 0.62
Exercisable at December 31, 2012	10,000
Weighted-Average Exercise Price	$ 0.62