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Note 10 - Leasing Activities (Tables)
12 Months Ended
Dec. 31, 2013
Leases [Abstract]  
Schedule of Future Minimum Lease Payments for Capital Leases and Operating Leases [Table Text Block]
   

Capital Leases

   

Operating Leases

 

2014

  $ 11,600     $ 801  

2015

    9,946       319  

2016

    8,138       73  

2017

    6,141       27  

2018

    6,736        

Thereafter

    6,985        
                 

Total minimum lease payments

  $ 49,546     $ 1,220  

Less amount representing interest

    (4,079 )        

Present value of net minimum capital lease payments

    45,467          

Less current portion

    (10,268 )        

Obligations under capital leases less current portion

  $ 35,199          
Schedule of Future Minimum Rental Receivable for Operating Leases [Table Text Block]

2014

  $ 82,545  

2015

    74,302  

2016

    59,543  

2017

    43,737  

2018

    26,152  

Thereafter

    17,808  
         

Total

  $ 304,087  
Operating Leases of Lessee Disclosure [Table Text Block]

2014

  $ 10,281  

2015

    8,156  

2016

    6,424  

2017

    4,351  

2018

    3,093  

Thereafter

    6,434  
         

Total

  $ 38,739