STOCKHOLDERS' EQUITY (Details 2) (Warrant [Member], USD $)
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6 Months Ended | 12 Months Ended |
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Nov. 30, 2015
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May 31, 2015
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Warrant [Member]
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Number of Shares | ||
Outstanding | 1,245,903us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
676,077us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
Issued | 392,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
569,826us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
Exercised | 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
Expired | 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
Outstanding | 1,637,903us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
1,245,903us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
Weighted Average Price Per Share | ||
Outstanding | $ 17.60staf_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageExercisePrice / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
$ 19.70staf_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageExercisePrice / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
Issued | $ 10.00staf_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodWeightedAverageExercisePrice / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
$ 15.00staf_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodWeightedAverageExercisePrice / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
Exercised | $ 0staf_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisesInPeriodWeightedAverageExercisePrice / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
$ 0staf_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisesInPeriodWeightedAverageExercisePrice / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
Expired | $ 0staf_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
$ 0staf_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
Outstanding | $ 15.80staf_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageExercisePrice / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
$ 17.60staf_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageExercisePrice / us-gaap_DerivativeByNatureAxis = us-gaap_WarrantMember |
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- Definition
Weighted average exercise price for exercised equity instruments other than options. No definition available.
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- Definition
Weighted average exercise price for granted equity instruments other than options. No definition available.
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- Definition
Weighted average exercise price for outstanding equity instruments other than options. No definition available.
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- Definition
Weighted average exercise price for forfeited and expired equity instruments other than options. No definition available.
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- 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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- Definition
Number of non-option equity instruments exercised by participants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of shares under non-option equity instrument agreements that were either cancelled or expired. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of equity instruments other than options outstanding, including both vested and non-vested instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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