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Stockholders' Equity (Details Narrative) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Jan. 05, 2015
Percentage of stock option vested   50.00%spex_PercentageOfStockOptionVested  
Gross Proceeds $ 30,000,000us-gaap_SaleLeasebackTransactionGrossProceeds    
Options Forfeited 250,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares    
Reverse of option expense 400,000spex_ReverseOfOptionExpense    
Amortization of stock option expense 100,000us-gaap_DeferredSalesInducementsAmortizationExpense 3,400,000us-gaap_DeferredSalesInducementsAmortizationExpense  
Unamortized compensation cost $ 10,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized    
Amortized period 1 month 6 days    
Restricted Stock [Member]      
Issuance of fully vested common shares     2,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
Anthony Haynes [Member]      
Issuance of non qualified stock option   500,000spex_IssuanceOfNonQualifiedStockOption
/ us-gaap_TitleOfIndividualAxis
= spex_AnthonyHaynesMember
 
Issuance of non qualified stock option, exercise price   $ 2.86spex_IssuanceOfNonQualifiedStockOptionExercisePrice
/ us-gaap_TitleOfIndividualAxis
= spex_AnthonyHaynesMember