Note 14 - Noncontrolling Interests (Details) (USD $)	12 Months Ended						12 Months Ended			12 Months Ended								12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2006 Fair Market Value Adjustments [Member] Convertible Units [Member]	Dec. 31, 2013 Fair Market Value Adjustments [Member] PUERTO RICO	Dec. 31, 2013 Fair Market Value Adjustments [Member] Bay Shore and Centereach, New York [Member]	Dec. 31, 2013 Shopping Centers [Member]	Dec. 31, 2013 Non-convertible Units [Member] PUERTO RICO	Dec. 31, 2013 Convertible Units [Member] PUERTO RICO	Dec. 31, 2006 Convertible Units [Member]	Dec. 31, 2013 Premiums [Member] PUERTO RICO	Dec. 31, 2013 Redeemable Units [Member]	Dec. 31, 2012 Redeemable Units [Member]	Dec. 31, 2013 Remaining [Member]	Dec. 31, 2012 Remaining [Member]	Dec. 31, 2013 Discount [Member] Bay Shore and Centereach, New York [Member]	Dec. 31, 2013 PUERTO RICO	Dec. 31, 2013 Bay Shore and Centereach, New York [Member]	Dec. 31, 2012 Capital Unit, Class A [Member]	Dec. 31, 2012 Capital Unit, Class B [Member]	Dec. 31, 2007 Capital Unit, Class B [Member]
Note 14 - Noncontrolling Interests (Details) [Line Items]
Number of Real Estate Properties									2										7
Noncontrolling Interest, Increase from Subsidiary Equity Issuance	$ 1,026,000				$ 1,045,000		$ 15,100,000			$ 158,600,000	$ 45,800,000	$ 5,300,000	$ 13,500,000					$ 300,000	$ 233,000,000	$ 41,600,000
Redeemable Noncontrolling Interest, Equity, Carrying Amount	86,153,000		81,076,000		95,074,000									26,400,000	26,400,000	111,400,000	110,800,000
Unamortized FairValue Debt Adjustments						300,000		3,800,000
Noncontrolling Interest, Units Redeemed (in Shares)																					13,963	30,000
Noncontrolling Interest, Cumulative Par Value																							1,100,000
Noncontrolling Interest, Units (in Shares)												138,015
Number of Years												1
Redeemable Noncontrolling Interest Issuance, Units (in Shares)	5,223
Redeemable Noncontrolling Interest Issuance, Amount	$ 5,223,000	[1]		[1]
Redeemable Noncontrolling Interest Issuance, Annual Yield	6.00%

[1] During the year ended December 31, 2013, the Company issued 5,223 units at $5.2 million of redeemable units, which are redeemable at the option of the holder after one year and earn a yield of 6% per annum