Note 5 Debt (Details) (Loan Agreement [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2011
Loan Agreement [Member]
Line of Credit Facility [Line Items]
Letters of Credit Outstanding, Amount	$ 25
Capacity Available for Specific Purchases	$ 50

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.

No definition available.

Name:	us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant