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Stockholder's Equity (Details 3) (USD $)	12 Months Ended		0 Months Ended							3 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Apr. 29, 2014	Oct. 21, 2014	Dec. 31, 2013	Jul. 10, 2014	Jun. 13, 2014	May 21, 2014	May 06, 2014	Jun. 30, 2013
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		4,823,766us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Purchase price of common stock		$ 3.30us-gaap_SharePrice								$ 3.00us-gaap_SharePrice
Fair Value of Common Stock Exchanged for Warrants	$ 3,069,792resx_FairValueOfCommonStockExchangedForWarrants
Financing transaction | Promissory note
Class of Warrant or Right [Line Items]
Principal amount of promissory note converted		200,000us-gaap_DebtConversionOriginalDebtAmount1 / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Chairman of the Board
Class of Warrant or Right [Line Items]
Shares issued to chairman in settlement of outstanding debt		546,553resx_StockIssuedDuringPeriodSharesIssuedToChairmanInConnectionWithSettlementOfOutstandingDebt / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember
Chairman of the Board | Promissory note
Class of Warrant or Right [Line Items]
Shares issued to chairman in settlement of outstanding debt			546,553resx_StockIssuedDuringPeriodSharesIssuedToChairmanInConnectionWithSettlementOfOutstandingDebt / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Chairman of the Board | Financing transaction
Class of Warrant or Right [Line Items]
Shares issued to chairman in settlement of outstanding debt		546,553resx_StockIssuedDuringPeriodSharesIssuedToChairmanInConnectionWithSettlementOfOutstandingDebt / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember
Chairman of the Board | Financing transaction | Promissory note
Class of Warrant or Right [Line Items]
Number of convertible promissory notes converted		4resx_NumberOfConvertiblePromissoryNotesConverted / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember	4resx_NumberOfConvertiblePromissoryNotesConverted / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Principal amount of promissory note converted		1,050,000us-gaap_DebtConversionOriginalDebtAmount1 / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember	1,050,000us-gaap_DebtConversionOriginalDebtAmount1 / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Director | Financing transaction | Promissory note
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased				75,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Exercise price of warrants				$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Principal amount of promissory note converted				200,000us-gaap_DebtConversionOriginalDebtAmount1 / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember	200,000us-gaap_DebtConversionOriginalDebtAmount1 / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Conversion of debt to common stock		100,000us-gaap_DebtConversionConvertedInstrumentSharesIssued1 / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember		100,000us-gaap_DebtConversionConvertedInstrumentSharesIssued1 / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember / us-gaap_ShortTermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Warrants to purchase common stock
Class of Warrant or Right [Line Items]
Risk-free interest rate	0.35%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember
Expected life in years	5 years
Expected volatility	141.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember
Warrants to purchase common stock | Investors
Class of Warrant or Right [Line Items]
Term of warrants		4 years	4 years			4 years	4 years	4 years	4 years
Number of shares of common stock to be purchased		2,668,706us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember	832,950us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember			15,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember	533,625us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember	261,693us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember	1,025,438us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember	4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember			$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember	$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember	$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember	$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember
Purchase price of common stock			4.00us-gaap_SharePrice / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember			$ 4.00us-gaap_SharePrice / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember	$ 4.00us-gaap_SharePrice / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember	$ 4.00us-gaap_SharePrice / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember	$ 4.00us-gaap_SharePrice / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = us-gaap_InvestorMember
Warrants to purchase common stock | Placement agent
Class of Warrant or Right [Line Items]
Term of warrants		4 years
Number of shares of common stock to be purchased		892,069us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_PlacementAgentMember	277,650us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_PlacementAgentMember			5,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_PlacementAgentMember	177,875us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_PlacementAgentMember	89,731us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_PlacementAgentMember	341,813us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_PlacementAgentMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_PlacementAgentMember
Warrants to purchase common stock | A law firm
Class of Warrant or Right [Line Items]
Term of warrants		4 years
Number of shares of common stock to be purchased		16,037us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_LawFirmWithOutstandingDebtDueToMember					16,037us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_LawFirmWithOutstandingDebtDueToMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_LawFirmWithOutstandingDebtDueToMember
Warrant expense		24,393resx_WarrantExpense / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_LawFirmWithOutstandingDebtDueToMember
Warrants to purchase common stock | Independent consultant
Class of Warrant or Right [Line Items]
Term of warrants		5 years
Number of shares of common stock to be purchased		15,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_IndependentConsultantMember
Exercise price of warrants		$ 4.90us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_IndependentConsultantMember
Warrant expense		25,976resx_WarrantExpense / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_IndependentConsultantMember
Vesting term of warrants		1 year
Number of warrants vested		12,500resx_ClassOfWarrantOrRightVestedNumber / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_IndependentConsultantMember
Number of unvested warrants		2,500resx_ClassOfWarrantOrRightNonvestedNumber / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_IndependentConsultantMember
Warrants to purchase common stock | Investor relations firm
Class of Warrant or Right [Line Items]
Term of warrants		5 years
Number of shares of common stock to be purchased		250,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_InvestorRelationsFirmMember
Exercise price of warrants		$ 3.75us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_InvestorRelationsFirmMember
Warrant expense		21,566resx_WarrantExpense / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_InvestorRelationsFirmMember
Agreement term		1 year
Fair value of warrants outstanding		517,576us-gaap_WarrantsAndRightsOutstanding / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_InvestorRelationsFirmMember
Warrants to purchase common stock | Financial advisors
Class of Warrant or Right [Line Items]
Term of warrants	5 years
Number of shares of common stock to be purchased	173,917us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_FinancialAdvisorsMember				173,917us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_FinancialAdvisorsMember
Exercise price of warrants	$ 3.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_FinancialAdvisorsMember				$ 3.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_FinancialAdvisorsMember
Warrant expense	462,618resx_WarrantExpense / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_FinancialAdvisorsMember
Number of common stock sold during the period, used to determine the fair value of the underlying common stock										139,167resx_CommonStockSoldDuringPeriodSharesDeterminingFairValueOfUnderlyingCommonStock / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_FinancialAdvisorsMember
Purchase price of common stock										$ 3.00us-gaap_SharePrice / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_CounterpartyNameAxis = resx_FinancialAdvisorsMember
Warrants to purchase common stock | Chairman of the Board
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased			351,060us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember
Exercise price of warrants			2.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember
Warrants to purchase common stock | Chairman of the Board | Financing transaction
Class of Warrant or Right [Line Items]
Term of warrants		4 years
Number of shares of common stock to be purchased		351,060us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember
Exercise price of warrants		$ 2.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember
Warrant expense		803,221resx_WarrantExpense / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember
Warrants to purchase common stock | Director
Class of Warrant or Right [Line Items]
Warrant expense		107,395resx_WarrantExpense / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember
Warrants to purchase common stock | Director | Financing transaction
Class of Warrant or Right [Line Items]
Term of warrants		4 years
Number of shares of common stock to be purchased		75,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RelatedPartyTransactionAxis = resx_FinancingTransactionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember
Common Stock Warrants Issued 19 February 2010 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		3,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued19February2010Member
Exercise price of warrants		$ 165.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued19February2010Member
Common Stock Warrants Issued 24 March 2010 Member | Tranche One Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		2,500us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued24March2010Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Exercise price of warrants		$ 30.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued24March2010Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Common Stock Warrants Issued 24 March 2010 Member | Tranche Two Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		500us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued24March2010Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Exercise price of warrants		$ 165.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued24March2010Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Common Stock Warrants Issued 29 March 2010 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		2,500us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29March2010Member
Exercise price of warrants		$ 165.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29March2010Member
Common Stock Warrants Issued 26 May 2010 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		666us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26May2010Member
Exercise price of warrants		$ 200.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26May2010Member
Common Stock Warrants Issued 18 June 2010 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		5,834us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued18June2010Member
Exercise price of warrants		$ 200.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued18June2010Member
Common Stock Warrants Issued 26 July 2010 Member | Tranche One Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		20,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26July2010Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Exercise price of warrants		$ 30.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26July2010Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Common Stock Warrants Issued 26 July 2010 Member | Tranche Two Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		700us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26July2010Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26July2010Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Common Stock Warrants Issued 25 October 2010 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		473us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued25October2010Member
Exercise price of warrants		$ 200.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued25October2010Member
Common Stock Warrants Issued 4 November 2010 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		113us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued4November2010Member
Exercise price of warrants		$ 200.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued4November2010Member
Common Stock Warrants Issued 22 November 2010 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		1,656us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued22November2010Member
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued22November2010Member
Common Stock Warrants Issued 25 November 2010 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		500us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued25November2010Member
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued25November2010Member
Common Stock Warrants Issued 23 December 2010 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		3,750us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued23December2010Member
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued23December2010Member
Common Stock Warrants Issued 2 February 2011 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		2,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued2February2011Member
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued2February2011Member
Common Stock Warrants Issued 23 February 2011 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		1,500us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued23February2011Member
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued23February2011Member
Common Stock Warrants Issued 15 March 2011 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		1,200us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued15March2011Member
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued15March2011Member
Common Stock Warrants Issued 6 April 2011 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		2,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued6April2011Member
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued6April2011Member
Common Stock Warrants Issued 15 April 2011 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		1,200us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued15April2011Member
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued15April2011Member
Common Stock Warrants Issued 26 April 2011 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		2,500us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26April2011Member
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26April2011Member
Common Stock Warrants Issued 29 April 2011 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		3,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2011Member
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2011Member
Common Stock Warrants Issued 29 April 2011 Member | Placement agent | Tranche Three Member
Class of Warrant or Right [Line Items]
Term of warrants		4 years
Number of shares of common stock to be purchased		35,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2011Member / us-gaap_CounterpartyNameAxis = resx_PlacementAgentMember / us-gaap_ShortTermDebtTypeAxis = resx_TrancheThreeMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2011Member / us-gaap_CounterpartyNameAxis = resx_PlacementAgentMember / us-gaap_ShortTermDebtTypeAxis = resx_TrancheThreeMember
Common Stock Warrants Issued 26 June 2011 Member | Tranche One Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		104,057us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26June2011Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Exercise price of warrants		$ 65.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26June2011Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Common Stock Warrants Issued 26 June 2011 Member | Tranche Two Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		52,028us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26June2011Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Exercise price of warrants		$ 100.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued26June2011Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Common Stock Warrants Issued 01 July 2011 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		5,300us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued01July2011Member
Exercise price of warrants		$ 65.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued01July2011Member
Common Stock Warrants Issued 23 May 2012 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		30,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued23May2012Member
Exercise price of warrants		$ 30.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued23May2012Member
Common Stock Warrants Issued 01 July 2012 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		10,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued01July2012Member
Exercise price of warrants		$ 75.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued01July2012Member
Common Stock Warrants Issued 20 August 2012 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		90,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued20August2012Member
Exercise price of warrants		$ 38.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued20August2012Member
Common Stock Warrants Issued 27 March 2013 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		173,917us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued27March2013Member
Exercise price of warrants		$ 3.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued27March2013Member
Common Stock Warrants Issued 17 March 2014 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		15,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued17March2014Member
Exercise price of warrants		$ 4.90us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued17March2014Member
Common Stock Warrants Issued 29 April 2014 Member | Tranche One Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		832,950us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Common Stock Warrants Issued 29 April 2014 Member | Tranche Two Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		277,650us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Common Stock Warrants Issued 29 April 2014 Member | Tranche Three Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		35,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheThreeMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheThreeMember
Common Stock Warrants Issued 29 April 2014 Member | Tranche Four Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		351,060us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheFourMember
Exercise price of warrants		$ 2.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheFourMember
Common Stock Warrants Issued 29 April 2014 Member | Placement agent | Tranche Three Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased			35,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2014Member / us-gaap_CounterpartyNameAxis = resx_PlacementAgentMember / us-gaap_ShortTermDebtTypeAxis = resx_TrancheThreeMember
Exercise price of warrants			4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued29April2014Member / us-gaap_CounterpartyNameAxis = resx_PlacementAgentMember / us-gaap_ShortTermDebtTypeAxis = resx_TrancheThreeMember
Common Stock Warrants Issued 06 May 2014 Member | Tranche One Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		1,025,438us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued06May2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued06May2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Common Stock Warrants Issued 06 May 2014 Member | Tranche Two Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		341,813us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued06May2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued06May2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Common Stock Warrants Issued 21 May 2014 Member | Tranche One Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		261,693us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued21May2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued21May2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Common Stock Warrants Issued 21 May 2014 Member | Tranche Two Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		89,731us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued21May2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued21May2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Common Stock Warrants Issued 13 June 2014 Member | Tranche One Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		533,625us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued13June2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued13June2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Common Stock Warrants Issued 13 June 2014 Member | Tranche Two Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		177,875us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued13June2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued13June2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Common Stock Warrants Issued 13 June 2014 Member | Tranche Three Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		16,037us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued13June2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheThreeMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued13June2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheThreeMember
Common Stock Warrants Issued 10 July 2014 Member | Tranche One Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		15,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued10July2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued10July2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheOneMember
Common Stock Warrants Issued 10 July 2014 Member | Tranche Two Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		5,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued10July2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued10July2014Member / us-gaap_ShortTermDebtTypeAxis = resx_TrancheTwoMember
Common Stock Warrants Issued 21 October 2014 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		75,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued21October2014Member
Exercise price of warrants		$ 4.80us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued21October2014Member
Common Stock Warrants Issued 08 December 2014 Member
Class of Warrant or Right [Line Items]
Number of shares of common stock to be purchased		250,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued08December2014Member
Exercise price of warrants		$ 3.75us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsIssued08December2014Member
Series E warrants
Class of Warrant or Right [Line Items]
Number of common stock sold during the period, used to determine the fair value of the underlying common stock										139,167resx_CommonStockSoldDuringPeriodSharesDeterminingFairValueOfUnderlyingCommonStock / us-gaap_ClassOfWarrantOrRightAxis = resx_SeriesEPreferredStockWarrantsMember
Purchase price of common stock										$ 3.00us-gaap_SharePrice / us-gaap_ClassOfWarrantOrRightAxis = resx_SeriesEPreferredStockWarrantsMember
Stock Issued During Period Shares Exchange of Warrants	1,023,264resx_StockIssuedDuringPeriodSharesExchangeOfWarrants / us-gaap_ClassOfWarrantOrRightAxis = resx_SeriesEPreferredStockWarrantsMember									1,023,264resx_StockIssuedDuringPeriodSharesExchangeOfWarrants / us-gaap_ClassOfWarrantOrRightAxis = resx_SeriesEPreferredStockWarrantsMember
Fair Value of Common Stock Exchanged for Warrants	$ 3,069,792resx_FairValueOfCommonStockExchangedForWarrants / us-gaap_ClassOfWarrantOrRightAxis = resx_SeriesEPreferredStockWarrantsMember									$ 3,069,792resx_FairValueOfCommonStockExchangedForWarrants / us-gaap_ClassOfWarrantOrRightAxis = resx_SeriesEPreferredStockWarrantsMember
Minimum | Warrants to purchase common stock
Class of Warrant or Right [Line Items]
Risk-free interest rate		1.11%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Expected life in years		4 years
Expected volatility		64.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Maximum | Warrants to purchase common stock
Class of Warrant or Right [Line Items]
Risk-free interest rate		1.67%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Expected life in years		5 years
Expected volatility		66.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_ClassOfWarrantOrRightAxis = resx_CommonStockWarrantsMember / us-gaap_RangeAxis = us-gaap_MaximumMember

X

- Definition

The number of warrants or rights that had not yet vested as of the end of the reporting period.

+ References

No definition available.

+ Details

Name:	resx_ClassOfWarrantOrRightNonvestedNumber
Namespace Prefix:	resx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the term of the warrants, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	resx_ClassOfWarrantOrRightTerm
Namespace Prefix:	resx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of warrants or rights that vested during the period.

+ References

No definition available.

+ Details

Name:	resx_ClassOfWarrantOrRightVestedNumber
Namespace Prefix:	resx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Period over which a warrant or right vests, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	resx_ClassOfWarrantOrRightVestingPeriod
Namespace Prefix:	resx_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of common stock sold during the period, which was used to determine the fair value of the underlying common stock.

+ References

No definition available.

+ Details

Name:	resx_CommonStockSoldDuringPeriodSharesDeterminingFairValueOfUnderlyingCommonStock
Namespace Prefix:	resx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the gain (loss) recognized in income statement due to the changes in the fair value of common stock exchanged for warrants.

+ References

No definition available.

+ Details

Name:	resx_FairValueOfCommonStockExchangedForWarrants
Namespace Prefix:	resx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the number of convertible promissory notes converted during the period.

+ References

No definition available.

+ Details

Name:	resx_NumberOfConvertiblePromissoryNotesConverted
Namespace Prefix:	resx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of shares issued during the period as a result of the exchange of warrants.

+ References

No definition available.

+ Details

Name:	resx_StockIssuedDuringPeriodSharesExchangeOfWarrants
Namespace Prefix:	resx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the number of shares issued to Chairman in connection with the settlement of outstanding debt.

+ References

No definition available.

+ Details

Name:	resx_StockIssuedDuringPeriodSharesIssuedToChairmanInConnectionWithSettlementOfOutstandingDebt
Namespace Prefix:	resx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Term of agreement with counterparty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	resx_TermOfAgreementWithCounterparty
Namespace Prefix:	resx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Expenses recognized resulting from issuance of warrants.

+ References

No definition available.

+ Details

Name:	resx_WarrantExpense
Namespace Prefix:	resx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(4))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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