Note 8 - Property and Equipment (Details Textual) - Predictive Analytics [Member] $ in Millions	3 Months Ended
Sep. 30, 2015 USD ($)
Property, Plant and Equipment, Gross, Reclassification to Held for Sale	$ 1.9
Property, Plant and Equipment, Accumulated Depreciation, Reclassified as Held for Sale	$ 1.6

Represents the reclassification of property, plant and equipment accumulated depreciation to held for sale.

No definition available.

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