Note 9 - Derivative Financial Instruments (Details) - Derivatives Designated As Cash Flow Hedges (Interest Rate Swap [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Note 9 - Derivative Financial Instruments (Details) - Derivatives Designated As Cash Flow Hedges [Line Items]
Interest rate swap	$ 210	$ (15)	$ 360	$ 53
Derivative Effective Portion Reclassified From AOCI into Income [Member]
Note 9 - Derivative Financial Instruments (Details) - Derivatives Designated As Cash Flow Hedges [Line Items]
Interest rate swap	0	0	0	0
Hedge Ineffectiveness Recorded Directly in Income [Member]
Note 9 - Derivative Financial Instruments (Details) - Derivatives Designated As Cash Flow Hedges [Line Items]
Interest rate swap	0	0	0	0
Total Income Statement Impact [Member]
Note 9 - Derivative Financial Instruments (Details) - Derivatives Designated As Cash Flow Hedges [Line Items]
Interest rate swap	0	0	0	0
Derivative Effective Portion Recorded in OCI [Member]
Note 9 - Derivative Financial Instruments (Details) - Derivatives Designated As Cash Flow Hedges [Line Items]
Interest rate swap	$ 210	$ (15)	$ 360	$ 53