Note 1 - Basis of Presentation (Details) (MWL [Member])	3 Months Ended
Mar. 27, 2013
MWL [Member]
Note 1 - Basis of Presentation (Details) [Line Items]
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions	45.00%

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

No definition available.

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