Note 7 - Derivative Financial Instruments (Details) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	Dec. 31, 2009 USD ($)	Dec. 31, 2012 USD ($)	Jun. 30, 2013 USD ($)	Jun. 30, 2013 EUR (€)
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Derivative Asset, Notional Amount (in Euro)				€ 7.0
Derivative, Amount of Hedged Item			100.0
Number of Foreign Currency Derivatives Held			1	1
Cash Paid For Interest Rate Swaps Settlement	6.4
Reclassified Amount From Accumulated Oci Associated With Interest Rate Swaps		$ 0.3