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Note 2 - Operating Property Activities (Detail) (USD $)
1 Months Ended3 Months Ended9 Months Ended9 Months Ended1 Months Ended9 Months Ended
Sep. 30, 2011
Aug. 31, 2011
Jul. 31, 2011
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Dec. 31, 2010
Sep. 30, 2011
Dispositions [Member]
Segment, Discontinued Operations [Member]
Sep. 30, 2011
Purchase Price Offer [Member]
Feb. 28, 2011
FNC Realty Corporation [Member]
Sep. 30, 2011
FNC Realty Corporation [Member]
Sep. 30, 2011
Segment, Discontinued Operations [Member]
Sep. 30, 2011
Segment, Continuing Operations [Member]
Sep. 30, 2011
Impairment of Property Carrying Value [Member]
Sep. 30, 2010
Before Minority Interest [Member]
Sep. 30, 2010
Minority Interests [Member]
Equity Method Investment, Ownership Percentage 13.40%               
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain $ 600,000               
Payments to Acquire Additional Interest in Subsidiaries9,700,000 200,000              
Adjustments to Additional Paid in Capital, Reallocation of Noncontrolling Interest2,200,000 200,000       1,000,000      
Sales of Real Estate      6,100,000    3,400,00070,000,0001,800,000   
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax   4,535,0001,704,0008,722,0001,704,000          
Impairment of Real Estate     16,700,00012,800,000 8,900,000   1,100,000600,0001,400,000  
Income From Other Real Estate Investments   2,449,0001,231,0003,062,0002,703,000    2,500,000   1,400,000 
Noncontrolling Interest Expense (Income), Real Estate Investments                100,000
Real Estate Investment Property, at Cost4,900,000  4,900,000 4,900,000           
Fair Value Of Real Estate3,550,000  3,550,000 3,550,000 16,414,000 3,500,000  17,000,000    
Business Acquisition, Percentage of Voting Interests Acquired          9.90%      
Business Acquisition, Cost of Acquired Entity, Purchase Price$ 167,267,000  $ 167,267,000 $ 167,267,000    $ 9,600,000      
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions          66.51%