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Stock Purchase Warrants (Details) (USD $)
3 Months Ended 12 Months Ended
Apr. 15, 2015
Dec. 31, 2014
Dec. 31, 2013
Shares      
Beginning Balance    1,556,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber  
Granted 2,300,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod     
Expired   (1,556,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod (924,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
Exercised       
Ending Balance      1,556,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
Exercise Price per Share      
Granted       
Weighted-Average Exercise Price      
Beginning of Period    $ 0.61us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue  
Granted       
Expired     $ 0.75us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageIntrinsicValue
End of Period      $ 0.61us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
Minimum [Member]      
Exercise Price per Share      
Exercise price, Beginning   $ 0.31us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
$ 0.31us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Expired   $ 0.31QTXB_ShareBasedCompensationOtherThanOptionExercisePriceExpired
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
$ 0.55QTXB_ShareBasedCompensationOtherThanOptionExercisePriceExpired
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Exercise price, Ending      $ 0.31us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum [Member]      
Exercise Price per Share      
Exercise price, Beginning   $ 1.25us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
$ 1.25us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Expired   $ 1.25QTXB_ShareBasedCompensationOtherThanOptionExercisePriceExpired
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
$ 1.25QTXB_ShareBasedCompensationOtherThanOptionExercisePriceExpired
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Exercise price, Ending      $ 1.25us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember