10. Stock options and warrants (Details Narrative) (USD $)
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12 Months Ended | 203 Months Ended | 12 Months Ended | ||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2014
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Dec. 31, 2014
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Dec. 31, 2011
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Outside the Plan | |||||
Options granted |
4,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_PlanNameAxis = zero_OutsideThePlanMember |
37,050,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_PlanNameAxis = zero_OutsideThePlanMember |
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Options cancelled or forfeited |
7,040,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_PlanNameAxis = zero_OutsideThePlanMember |
17,430,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_PlanNameAxis = zero_OutsideThePlanMember |
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Options exercised |
2,860,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_PlanNameAxis = zero_OutsideThePlanMember |
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Options outstanding |
16,760,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = zero_OutsideThePlanMember |
16,760,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = zero_OutsideThePlanMember |
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Options | |||||
Option shares available for grant |
1,439,637us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
1,439,637us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Options to purchase shares granted |
4,292,030zero_OptionsToPurchaseSharesGranted / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
4,292,030zero_OptionsToPurchaseSharesGranted / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Options granted |
207,819us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
4,858,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
852,122us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Options cancelled or forfeited |
7,061,009us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
871,127us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
90,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
||
Options exercised |
115,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
776,667us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
20,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Options outstanding |
20,309,908us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
27,278,098us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
21,052,030us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
21,052,030us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
24,067,892us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
Aggregate intrinsic value of options outstanding |
474,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 474,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Proceeds from exercise of options |
19,500us-gaap_ProceedsFromStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
364,700us-gaap_ProceedsFromStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
6,000us-gaap_ProceedsFromStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Compensation costs recognized |
295,884us-gaap_EmployeeBenefitsAndShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Compensation costs amortized |
376,247us-gaap_AmortizationOfDeferredCharges / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Weighted average fair value for options granted |
0.30us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
0.37us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
$ 0.96us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember |
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Options | Employees and Directors | |||||
Options granted |
207,819us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = zero_EmployeesAndDirectorsMember |
858,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = zero_EmployeesAndDirectorsMember |
852,122us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = zero_EmployeesAndDirectorsMember |
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Options cancelled or forfeited |
21,009us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = zero_EmployeesAndDirectorsMember |
90,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = zero_EmployeesAndDirectorsMember |
871,127us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = zero_EmployeesAndDirectorsMember |
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Compensation costs recognized |
101,157us-gaap_EmployeeBenefitsAndShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = zero_EmployeesAndDirectorsMember |
538,037us-gaap_EmployeeBenefitsAndShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = zero_EmployeesAndDirectorsMember |
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Compensation costs amortized |
403,127us-gaap_AmortizationOfDeferredCharges / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = zero_EmployeesAndDirectorsMember |
1,366,846us-gaap_AmortizationOfDeferredCharges / us-gaap_AwardTypeAxis = us-gaap_StockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = zero_EmployeesAndDirectorsMember |
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Warrants | |||||
Compensation costs recognized |
52,314us-gaap_EmployeeBenefitsAndShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
16,645us-gaap_EmployeeBenefitsAndShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
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Compensation costs amortized |
289,513us-gaap_AmortizationOfDeferredCharges / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
41,950us-gaap_AmortizationOfDeferredCharges / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
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Aggregate intrinsic value of warrants outstanding |
715,174us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
715,174us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
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Future unamortized compensation expense on unvested warrants |
66,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
66,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
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Warrants exercised |
29,037,389us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
12,039,846us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
4,690,947us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
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Proceeds from warrants exercised |
8,408,718us-gaap_ProceedsFromWarrantExercises / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
$ 1,377,284us-gaap_ProceedsFromWarrantExercises / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
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Warrants granted |
150,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
9,273,316us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
761,037us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_WarrantMember |
X | ||||||||||
- Definition
The amount of amortization of deferred charges applied against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Costs and payments related to employee benefits and equity-based compensation, such as pension expense and contributions, other postretirement benefits expense and payments, stock or unit options expense, and amortization of restricted stock or unit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. No definition available.
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X | ||||||||||
- Definition
The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The cash inflow associated with the amount received from holders exercising their stock warrants. No definition available.
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X | ||||||||||
- Definition
Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options. No definition available.
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X | ||||||||||
- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Number of non-option equity instruments exercised by participants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Options to purchase shares granted No definition available.
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X | ||||||||||
- Details
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X | ||||||||||
- Details
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X | ||||||||||
- Details
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