Note 2 - Variable Interest Entity (Details) (USD $)	12 Months Ended
Dec. 31, 2013
Note 2 - Variable Interest Entity (Details) [Line Items]
Annual Recurring Contract Value	$ 12,500,000
Proforma Minimum EBITDA Margin	35.00%
Variable Interest Entity Noncontrolling Interest Put Option	0
Variable Interest Entity Profit or Loss	837,000
Variable Interest Entity, Consolidated, Carrying Amount, Assets	649,000
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities	186,000
Additional Capital Contributions [Member] \| NRC [Member]
Note 2 - Variable Interest Entity (Details) [Line Items]
Variable Interest Entity, Financial or Other Support, Amount	$ 2,500,000
NRC [Member]
Note 2 - Variable Interest Entity (Details) [Line Items]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	49.00%
NG Customer-Connect, LLC [Member]
Note 2 - Variable Interest Entity (Details) [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	25.00%
Illuminate Health, LLC [Member]
Note 2 - Variable Interest Entity (Details) [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	26.00%

Annual Contract Value held by VIE at which time reporting entity will be required to acquire remaining interest in VIE

No definition available.

Name:	nrci_AnnualRecurringContractValue
Namespace Prefix:	nrci_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	nrci_Note2VariableInterestEntityDetailsLineItems
Namespace Prefix:	nrci_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Pro forma EBITDA margin for the VIE's revenue going forward approved by members, at which time reporting entity will be required to acquire remaining interest in VIE

+ References

No definition available.

+ Details

Name:	nrci_ProformaMinimumEBITDAMargin
Namespace Prefix:	nrci_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The price as of the reporting date of noncontrolling interests of a VIE consolidated in the financial statements which are redeemable by the reporting entity upon occurrence of an event that is not solely within the control of the reporting entity.

+ References

No definition available.

+ Details

Name:	nrci_VariableInterestEntityNoncontrollingInterestPutOption
Namespace Prefix:	nrci_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The variable interest entity's net profit or loss for the reporting period which has been consolidated by the reporting entity

+ References

No definition available.

+ Details

Name:	nrci_VariableInterestEntityProfitorLoss
Namespace Prefix:	nrci_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (bb)

-URI http://asc.fasb.org/extlink&oid=28200181&loc=d3e5710-111685

+ Details

Name:	us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.

+ References

+ Details

Name:	us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 5A

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=28200181&loc=SL6759159-111685

+ Details

Name:	us-gaap_VariableInterestEntityFinancialOrOtherSupportAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 5A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=28200181&loc=SL6759159-111685

+ Details

Name:	us-gaap_VariableInterestEntityOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration