Note 21. Supplementary Quarterly Financial Data (Unaudited) (Detail) (USD $)	12 Months Ended	3 Months Ended
Apr. 01, 2012	Apr. 01, 2012 Share Based Compensation [Member]
Prior Period Reclassification Adjustment	$ 741,000	$ 741,000

The amount of a reclassification adjustment made to prior period financial statement amounts.

No definition available.

Name:	us-gaap_PriorPeriodReclassificationAdjustment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration