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Disclosure of Share based Compensation Arrangements By Shares Based Payment Award and Warrants or Rights (Details) (USD $)
 9 Months Ended
Mar. 31, 2015
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding 13,600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber 8,925,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 13,600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term 3 years 6 months 11 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 0.10us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice $ 0.24us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term 3 years 6 months 11 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price $ 0.10us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice  
Class of Warrant or Right, Outstanding 24,246,090us-gaap_ClassOfWarrantOrRightOutstanding 25,283,511us-gaap_ClassOfWarrantOrRightOutstanding
Class of Warrant or Right, Exercisable, Number 24,246,090sfeg_ClassOfWarrantOrRightExercisableNumber  
Class of Warrant or Right, Weighted Average Remaining Contractual Term 2 years 1 month 17 days  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price $ 0.32sfeg_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice $ 0.62sfeg_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
Class of Warrant or Right, Exercisable Weighted Average Remaining Contractual Term 2 years 1 month 17 days  
Class of Warrant or Right, Exercisable Weighted Average Exercise Price $ 0.32sfeg_ClassOfWarrantOrRightExercisableWeightedAverageExercisePrice  
$0.05 Exercise Price [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding 11,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroZeroFiveExercisePriceMember		  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 11,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroZeroFiveExercisePriceMember		  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term 3 years 8 months 1 day  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 0.05us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroZeroFiveExercisePriceMember		  
$0.07 Exercise Price [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding 200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroZeroSevenExercisePriceMember		  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroZeroSevenExercisePriceMember		  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term 4 years 9 months 4 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price $ 0.07us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroZeroSevenExercisePriceMember		  
$0.08 Exercise Price [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding 400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroZeroEightExercisePriceMember		  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroZeroEightExercisePriceMember		  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term 3 years 9 months 14 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 0.08us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroZeroEightExercisePriceMember		  
$0.14 Exercise Price [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding 600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroOneFourExercisePriceMember		  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroOneFourExercisePriceMember		  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term 3 years 4 months 6 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 0.14us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroOneFourExercisePriceMember		  
$0.32 Exercise Price [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding 450,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroThreeTwoExercisePriceMember		  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 450,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroThreeTwoExercisePriceMember		  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term 2 years 9 months 4 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 0.32us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroThreeTwoExercisePriceMember		  
$0.36 Exercise Price [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding 700,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroThreeSixExercisePriceMember		  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 700,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroThreeSixExercisePriceMember		  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term 2 years 9 months 4 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 0.36us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_ZeroThreeSixExercisePriceMember		  
$1.00 Exercise Price [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding 250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_OneZeroZeroExercisePriceMember		  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_OneZeroZeroExercisePriceMember		  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term 0 years  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 1.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= sfeg_OneZeroZeroExercisePriceMember		  
$0.0425 Exercise Price [Member]    
Class of Warrant or Right, Outstanding 3,503,271us-gaap_ClassOfWarrantOrRightOutstanding
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroZeroFourTwoFiveExercisePriceMember		  
Class of Warrant or Right, Exercisable, Number 3,503,271sfeg_ClassOfWarrantOrRightExercisableNumber
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroZeroFourTwoFiveExercisePriceMember		  
Class of Warrant or Right, Weighted Average Remaining Contractual Term 1 year 8 months 8 days  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price $ 0.0425sfeg_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroZeroFourTwoFiveExercisePriceMember		  
$0.06 Exercise Price [Member]    
Class of Warrant or Right, Outstanding 3,375,000us-gaap_ClassOfWarrantOrRightOutstanding
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroZeroSixExercisePriceMember		  
Class of Warrant or Right, Exercisable, Number 3,375,000sfeg_ClassOfWarrantOrRightExercisableNumber
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroZeroSixExercisePriceMember		  
Class of Warrant or Right, Weighted Average Remaining Contractual Term 0 years 6 months  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price $ 0.06sfeg_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroZeroSixExercisePriceMember		  
$0.067 Exercise Price [Member]    
Class of Warrant or Right, Outstanding 926,765us-gaap_ClassOfWarrantOrRightOutstanding
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroZeroSixSevenExercisePriceMember		  
Class of Warrant or Right, Exercisable, Number 926,765sfeg_ClassOfWarrantOrRightExercisableNumber
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroZeroSixSevenExercisePriceMember		  
Class of Warrant or Right, Weighted Average Remaining Contractual Term 1 year 9 months 18 days  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price $ 0.067sfeg_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroZeroSixSevenExercisePriceMember		  
$0.15 Exercise Price [Member]    
Class of Warrant or Right, Outstanding 3,240,000us-gaap_ClassOfWarrantOrRightOutstanding
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroOneFiveExercisePriceMember		  
Class of Warrant or Right, Exercisable, Number 3,240,000sfeg_ClassOfWarrantOrRightExercisableNumber
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroOneFiveExercisePriceMember		  
Class of Warrant or Right, Weighted Average Remaining Contractual Term 3 years 10 months 20 days  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price $ 0.15sfeg_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroOneFiveExercisePriceMember		  
$0.38 Exercise Price [Member]    
Class of Warrant or Right, Outstanding 523.434us-gaap_ClassOfWarrantOrRightOutstanding
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroThreeEightExercisePriceMember		  
Class of Warrant or Right, Exercisable, Number 523.434sfeg_ClassOfWarrantOrRightExercisableNumber
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroThreeEightExercisePriceMember		  
Class of Warrant or Right, Weighted Average Remaining Contractual Term 2 years 5 months 16 days  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price $ 0.38sfeg_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroThreeEightExercisePriceMember		  
$0.40 Exercise Price [Member]    
Class of Warrant or Right, Outstanding 10,744,286us-gaap_ClassOfWarrantOrRightOutstanding
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroFourZeroExercisePriceMember		  
Class of Warrant or Right, Exercisable, Number 10,744,286sfeg_ClassOfWarrantOrRightExercisableNumber
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroFourZeroExercisePriceMember		  
Class of Warrant or Right, Weighted Average Remaining Contractual Term 2 years 4 months 10 days  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price $ 0.40sfeg_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroFourZeroExercisePriceMember		  
$0.87 Exercise Price [Member]    
Class of Warrant or Right, Outstanding 500,000us-gaap_ClassOfWarrantOrRightOutstanding
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroEightSevenExercisePriceMember		  
Class of Warrant or Right, Exercisable, Number 500,000sfeg_ClassOfWarrantOrRightExercisableNumber
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroEightSevenExercisePriceMember		  
Class of Warrant or Right, Weighted Average Remaining Contractual Term 1 year 4 months 2 days  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price $ 0.87sfeg_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_ZeroEightSevenExercisePriceMember		  
$1.00 Exercise Price [Member]    
Class of Warrant or Right, Outstanding 600,000us-gaap_ClassOfWarrantOrRightOutstanding
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_OneZeroZeroExercisePriceMember		  
Class of Warrant or Right, Exercisable, Number 600,000sfeg_ClassOfWarrantOrRightExercisableNumber
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_OneZeroZeroExercisePriceMember		  
Class of Warrant or Right, Weighted Average Remaining Contractual Term 1 year 7 months 10 days  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price $ 1.00sfeg_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_OneZeroZeroExercisePriceMember		  
$1.50 Exercise Price [Member]    
Class of Warrant or Right, Outstanding 833,334us-gaap_ClassOfWarrantOrRightOutstanding
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_OneFiveZeroExercisePriceMember		  
Class of Warrant or Right, Exercisable, Number 833,334sfeg_ClassOfWarrantOrRightExercisableNumber
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_OneFiveZeroExercisePriceMember		  
Class of Warrant or Right, Weighted Average Remaining Contractual Term 0 years 9 months  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price $ 1.50sfeg_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
/ sfeg_WarrantsExercisePriceRangesAxis
= sfeg_OneFiveZeroExercisePriceMember