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Note 11 - Income Taxes and Deferred Tax Asset/Liability (Tables)
 12 Months Ended
Dec. 31, 2012
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
   
Years Ended December 31,
 
    2012     2011     2010  
Current tax expense (benefit)
  $ 588     $ 1,639     $ 6,410  
Deferred tax expense (benefit)
    (1,167 )     (18,651 )     3,860  
Total tax expense (benefit)
  $ (579 )   $ (17,012 )   $ 10,270  
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   
As of December 31,
 
   
2012
   
2011
 
   
Current
   
Long Term
   
Current
   
Long Term
 
Assets related to:
                       
Accrued compensation and other
  $ 1,803     $ --     $ 1,302     $ --  
Amortization and impairment of goodwill
    --       13,181       --       15,900  
Accreted interest to put
    --       939       --       587  
Contingency on lawsuit 
    --       130       --       391  
Noncontrolling interest
    --       915       --       --  
Revaluation of put/call liabilities
    --       2,194       --       --  
Liabilities related to:
                               
Depreciation of property and equipment
    --       (13,615 )     --       (14,040 )
Noncontrolling interest
    --       --       --       (1,720 )
Other 
    --       (771 )     --       (290 )
Net asset (liability)
  $ 1,803     $ 2,973     $ 1,302     $ 828  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   
Years Ended December 31,
 
   
2012
   
2011
   
2010
 
   
Amount
   
%
   
Amount
   
%
   
Amount
   
%
 
Tax expense (benefit)  at the U.S. federal statutory rate
  $ 5,997       35.0 %   $ (18,101 )     35.0 %   $ 12,773       35.0 %
State tax based on income, net of refunds and federal benefits
    (58 )     (0.3 )     (573 )     1.1       879       2.4  
Taxes on subsidiaries’ and joint ventures’ earnings allocated to noncontrolling interests owners
    (5,938 )     (34.7 )     (444 )     0.9       (2,498 )     (6.8 )
Tax benefits of Domestic Production Activities Deduction
    (84 )     (0.5 )     (202 )     0.4       (500 )     (1.4 )
Impairment associated with goodwill that is not amortizable for tax
    --       --       2,603       (5.0 )     --       --  
Non-taxable interest income
    (529 )     (3.1 )     (376 )     0.7       (494 )     (1.4 )
Other permanent differences 
    33       0.2       81       (0.2 )     110       0.3  
Income tax expense (benefit)
  $ (579 )     (3.4 )%   $ (17,012 )     32.9 %   $ 10,270       28.1 %