Nature of Business (Details)	12 Months Ended
Sep. 30, 2012 item
Nature of Business
Number of individual stock keeping units (SKUs)	25,000

Represents the number of individual stock keeping units under numerous owned and private-label brands that the entity markets.

No definition available.

Name:	nty_NumberOfIndividualStockKeepingUnitsOverWhichEntityMarkets
Namespace Prefix:	nty_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration