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Note 9. Convertible Notes Payable (Details) (Convertible Debt [Member], USD $)
3 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Note 9. Convertible Notes Payable (Details) [Line Items]    
Debt Instrument, Convertible, Terms of Conversion Feature The notes are convertible into common stock at the option of the holder. The holder of the notes cannot convert the notes into shares of common stock if that conversion would result in the holder owning more than 4.9% of the outstanding stock of the Company.  
Convertible Note Issued March 31, 2015 [Member]    
Note 9. Convertible Notes Payable (Details) [Line Items]    
Debt Instrument, Convertible, Terms of Conversion Feature The Convertible Promissory Note and unpaid accrued interest are convertible into common stock at the option of the holder.  
Debt Instrument, Interest Rate, Stated Percentage 10.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedMarch31_2015Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
 
Debt Instrument, Convertible, Conversion Price $ 1.10us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedMarch31_2015Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
 
Convertible Note Issued April 1, 2013 [Member]    
Note 9. Convertible Notes Payable (Details) [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 10.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedApril1_2013Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
10.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedApril1_2013Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
Debt Instrument, Convertible, Conversion Price $ 0.01us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedApril1_2013Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
$ 0.01us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedApril1_2013Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
Gains (Losses) on Restructuring of Debt $ 0us-gaap_GainsLossesOnRestructuringOfDebt
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedApril1_2013Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
 
Convertible Note Issued June 30, 2013 [Member]    
Note 9. Convertible Notes Payable (Details) [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 10.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedJune30_2013Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
10.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedJune30_2013Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
Debt Instrument, Convertible, Conversion Price $ 0.01us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedJune30_2013Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
$ 0.01us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedJune30_2013Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
Gains (Losses) on Restructuring of Debt $ 0us-gaap_GainsLossesOnRestructuringOfDebt
/ us-gaap_DebtInstrumentAxis
= gtso_ConvertibleNoteIssuedJune30_2013Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember