Note 13 - Deferred Compensation Retirement Plans (Details) (Subsequent Event [Member], USD $) In Millions, unless otherwise specified	Oct. 20, 2014
Chairman Of The Board And Chief Executive Officer [Member]
Note 13 - Deferred Compensation Retirement Plans (Details) [Line Items]
Deferred Compensation Arrangement with Individual, Distributions Paid	$ 14.8
President And Chief Operating Officer [Member]
Note 13 - Deferred Compensation Retirement Plans (Details) [Line Items]
Deferred Compensation Arrangement with Individual, Distributions Paid	$ 16.0

The amount of distributions made to the individual during the period.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant