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Note 12 - Commitments and Contingencies (Details Textual)		9 Months Ended
	Sep. 04, 2014 USD ($) ft²	Sep. 30, 2015 USD ($)
Building [Member] | Buffalo Grove [Member] | Long Term Operating Lease Agreement [Member]
Area of Real Estate Property | ft²	2,900
Lessee Leasing Arrangements Operating Leases Number of Extension Options	1
Lessee Leasing Arrangements, Operating Leases, Renewal Term	3 years
Operating Leases, Number of Months from Lease Inception that Monthly Rent is Not Required to Be Paid	5
Operating Leases Monthly Rent Expense	$ 6,000
Operating Leases Annual Rent Expense	72,000
Operating Leases Annual Increase in Rent Expense for First Year	6,100
Operating Leases Annual Increase in Rent Expense For Second Year and Thereafter	$ 6,200
Long-term Purchase Commitment, Amount		$ 528,009

X

- Definition

Represents the number of extension options for renewal of the term of the lessee's leasing arrangement.

+ References

No definition available.

+ Details

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

X

- Definition

Represents the annual increase in rental expense for first year under operating leases.

+ References

No definition available.

+ Details

Name:	resx_OperatingLeasesAnnualIncreaseInRentExpenseForFirstYear
Namespace Prefix:	resx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the annual increase in rental expense for second year and thereafter under operating leases.

+ References

No definition available.

+ Details

Name:	resx_OperatingLeasesAnnualIncreaseInRentExpenseForSecondYearAndThereafter
Namespace Prefix:	resx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the annual rental expense to be incurred under operating leases.

+ References

No definition available.

+ Details

Name:	resx_OperatingLeasesAnnualRentExpense
Namespace Prefix:	resx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Rental expense paid per month for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

No definition available.

+ Details

Name:	resx_OperatingLeasesMonthlyRentExpense
Namespace Prefix:	resx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Number of months from lease inception that monthly rental payments are not required.

+ References

No definition available.

+ Details

Name:	resx_OperatingLeasesNumberOfMonthsFromLeaseInceptionThatMonthlyRentIsNotRequiredToBePaid
Namespace Prefix:	resx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Term of the lessee's leasing arrangement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_LesseeLeasingArrangementsOperatingLeasesRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The minimum amount the entity agreed to spend under the long-term purchase commitment.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermPurchaseCommitmentAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=resx_BuffaloGroveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LeaseArrangementTypeAxis=resx_LongTermOperatingLeaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: