Note 9 - Property Acquisition (Details) - Property Acquisitions (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Shoppes Of Eastwood [Member]
Real Estate Properties [Line Items]
Acquisition Costs	$ 11.6
Cool Springs Market [Member]
Real Estate Properties [Line Items]
Acquisition Costs	37.6
Castleton Crossing [Member]
Real Estate Properties [Line Items]
Acquisition Costs	39.0
Toringdon Market [Member]
Real Estate Properties [Line Items]
Acquisition Costs	15.9
Nine Property Portfolio [Member]
Real Estate Properties [Line Items]
Acquisition Costs	$ 304.0