Litigation Summary (Details) (Hamilton and Taylor v. Vitamin World, Inc)	0 Months Ended
Jul. 07, 2010 item
Hamilton and Taylor v. Vitamin World, Inc
Employment Class Actions
Number of lawsuits filed against subsidiary	1

Represents the number of company subsidiaries which have lawsuits filed against.

No definition available.

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