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Note 11 - Income Taxes and Deferred Tax Asset/Liability (Detail) - Deferred tax assets and liabilities consist of the following (in thousands): (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Assets related to:    
Net asset (liability) $ 1,803 $ 1,302
Accreted Interest To Put [Member] | Long-Term [Member]
    
Assets related to:    
Long Term 939 587
Contingency on Lawsuit [Member] | Long-Term [Member]
    
Assets related to:    
Long Term 130 391
Noncontrolling Interest [Member] | Long-Term [Member]
    
Assets related to:    
Noncontrolling interest 915  
Current [Member]
    
Assets related to:    
Accrued compensation and other 1,803 1,302
Net asset (liability) 1,803 1,302
Long-Term [Member]
    
Assets related to:    
Accrued compensation and other 0 0
Amortization and impairment of goodwill 13,181 15,900
Depreciation of property and equipment (13,615) (14,040)
Noncontrolling interest   (1,720)
Long Term (771) (290)
Revaluation of put/call liabilities 2,194  
Net asset (liability) $ 2,973 $ 828