Note 7 - Derivative Financial Instruments (Details) - Derivatives in Fair Value and Cash Flow Hedging Relationships (Derivatives in Cash Flow Hedging Relationships [Member], Interest Rate Swap [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swaps		$ 176
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swaps	$ 234	$ 3,142