Commitments and Contingencies (Details) (Buffalo Grove, Long-term operating lease agreement, Office space, USD $)	0 Months Ended
Sep. 04, 2014 item sqft	Sep. 04, 2014 item sqft
Buffalo Grove \| Long-term operating lease agreement \| Office space
Office Space Rental
Office area under lease	2,900	2,900
Number of extension option	1
Renewal term	3 years
Number of months from lease inception that monthly rental payments are not required	5	5
Monthly rent	$ 6,000	$ 6,000
Annual rent	72,000	72,000
Annual increase in rent for first year	6,100	6,100
Annual increase in rent for second year and thereafter	$ 6,200	$ 6,200

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

No definition available.

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

- 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

- 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

- 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

- 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

- 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

- 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

- 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

- Details

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