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Note 11 - Noncontrolling Interests (Tables)
3 Months Ended
Mar. 31, 2013
Redeemable Noncontrolling Interest [Table Text Block]
   
2013
   
2012
 
Balance at January 1,
 
$
81,076
   
$
95,074
 
Issuance of redeemable units
   
5,223
     
-
 
Other
   
25
     
-
 
Balance at March 31,
 
$
86,324
   
$
95,074