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Note 9 - Leases (Tables)
9 Months Ended
Sep. 30, 2019
Notes Tables  
Lease, Cost [Table Text Block]
   

Three Months Ended September 30, 2019

   

Nine Months Ended September 30, 2019

 
                 

Operating lease cost

  $ 2,312     $ 7,263  

Finance lease cost:

               

Amortization of ROU assets

    643       1,873  

Interest on lease liabilities

    554       1,696  

Total lease cost

  $ 3,509     $ 10,832  
Schedule of Components of Lease Assets and Liabilities [Table Text Block]
   

September 30, 2019

 

Operating Leases

       

Operating lease ROU assets (1)

  $ 37,270  
         

Operating lease liabilities - current (2)

  $ 7,519  

Operating lease liabilities - noncurrent (3)

    30,693  

Total operating lease liabilities

  $ 38,212  
         

Finance Leases

       

Finance lease ROU assets, gross

  $ 29,353  

Accumulated depreciation - finance lease ROU assets

    (3,326 )

Finance lease ROU assets, net (4)

  $ 26,027  
         

Finance lease liabilities - current (5)

  $ 1,813  

Finance lease liabilities - noncurrent (6)

    24,158  

Total finance lease liabilities

  $ 25,971  
Schedule of Leases Cash Flow Information [Table Text Block]
   

Three Months Ended September 30, 2019

   

Nine Months Ended September 30, 2019

 

Cash paid for amounts included in the measurement of lease liabilities

               

Operating cash flows from operating leases

  $ 2,565     $ 7,951  

Operating cash flows from finance leases

    471       1,393  

Financing cash flows from finance leases

    905       2,261  
                 

ROU assets obtained in exchange for lease liabilities

               

Operating leases

    989       3,782  

Finance leases

    194       8,165  
Lease, Term and Discount Rate [Table Text Block]
   

September 30, 2019

 

Weighted average remaining lease term (in years)

       

Operating Leases

    7.00  

Finance Leases

    14.24  
         

Weighted average discount rate

       

Operating Leases

    5.51 %

Finance Leases

    7.87 %
Operating and Finance Lease, Liability, Maturity [Table Text Block]
   

As of September 30, 2019

 
   

Finance

Leases

   

Operating

Leases

 

Remainder of 2019

  $ 934     $ 2,481  

2020

    3,519       8,934  

2021

    3,158       6,898  

2022

    3,388       5,368  

2023

    2,655       4,581  

After 2023

    32,016       18,338  

Total minimum lease payments

    45,670       46,600  

Interest component

    (19,699 )     (8,388 )

Present value of minimum lease payments

  $ 25,971     $ 38,212  
Schedule of Future Minimum Rental Payments for Finance and Operating Leases [Table Text Block]
   

As of December 31, 2018

 
   

Capital

Leases

   

Operating

Leases

 

2019

  $ 2,166     $ 8,914  

2020

    2,477       7,575  

2021

    2,053       6,379  

2022

    1,995       4,955  

2023

    1,889       4,482  

After 2023

    18,108       18,614  

Total minimum lease payments

    28,688     $ 50,919  

Interest component

    (8,517 )        

Present value of minimum lease payments

  $ 20,171