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7. Derivative Liabilities - Derivative Liabilities - Fair Value (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Notes to Financial Statements
Fair value at the commitment date - convertible debt	$ 4,892,234us-gaap_ConvertibleDebtFairValueDisclosures	$ 4,892,234us-gaap_ConvertibleDebtFairValueDisclosures
Fair value at the commitment date - warrants	677,214us-gaap_WarrantsNotSettleableInCashFairValueDisclosure	677,214us-gaap_WarrantsNotSettleableInCashFairValueDisclosure
Reclassification of derivative liabilities to additional paid in capital related to warrants exercised that ceased being a derivative liability	(214,769)SAFE_ReclassificationOfDerivativeLiabilitiesToAdditionalPaidInCapital	(214,769)SAFE_ReclassificationOfDerivativeLiabilitiesToAdditionalPaidInCapital
Fair value mark to market adjustment - stock options	(25,614)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions	(16,440)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions
Fair value mark to market adjustment - convertible debt	(668,189)us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	(937,476)us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt
Fair value mark to market adjustment - warrants	(13,701)us-gaap_FairValueAdjustmentOfWarrants	(16,744)us-gaap_FairValueAdjustmentOfWarrants
Totals	$ 4,647,175us-gaap_DerivativeAssetFairValueGrossLiability	$ 4,379,432us-gaap_DerivativeAssetFairValueGrossLiability

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Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 25

-Paragraph 22

-URI http://asc.fasb.org/extlink&oid=51819886&loc=SL6014347-161799

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Changes in additional paid in capital related to exercise of share-based payments awards (such as stock options) and the amount of recognized equity-based compensation during the period (such as nonvested shares).

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Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Convertible Security

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Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

+ References

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-SubTopic 20

-Section 50

-Paragraph 3

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Amount of expense (income) related to adjustment to fair value of warrant liability.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

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Fair value portion of warrants not settleable in cash classified as equity.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

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