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Note 14 - Fair Value Measurements (Detail) - Assets and Liabilities Measured at Fair Value on a Recurring Basis (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Assets:    
Marketable equity Securities $ 31,343 $ 30,462
Liabilities:    
Interest rate swaps 47 222
Real estate 28,694 5,289
Other real estate investments (1)   9,041 [1]
Fair Value, Inputs, Level 1 [Member]
   
Assets:    
Marketable equity Securities 31,343 30,462
Fair Value, Inputs, Level 2 [Member]
   
Liabilities:    
Interest rate swaps 47 222
Other real estate investments (1)   9,041 [1]
Fair Value, Inputs, Level 3 [Member]
   
Liabilities:    
Real estate $ 28,694 $ 5,289
[1] Amount represents an investment in a mutual fund for which fair value was determined based on net asset value.