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Note 13 - Leases (Tables)
 9 Months Ended
Sep. 30, 2019
Notes Tables  
Lessee, Assets and Liabilities, Disclosure [Table Text Block] <div style="display: inline; font-family: times new roman; font-size: 10pt"><table border="0" cellpadding="0" cellspacing="0" style="margin-right: 20%; font-size: 10pt; font-family: "Times New Roman", Times, serif; text-indent: 0px; min-; min-width: 700px;"> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 32%;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"> </div></td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> <td colspan="2" style="text-align: center; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; width: 1%;"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">As of</div></div></div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px; width: 1%;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> </td> <td style="text-align: center; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; width: 32%; border-bottom: thin solid rgb(0, 0, 0);"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">Classification</div></div></div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> <td colspan="2" nowrap="nowrap" style="text-align: center; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: thin solid rgb(0, 0, 0); width: 1%; padding: 0px;"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">September 30, 2019</div></div></div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px; width: 1%;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 32%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> <td colspan="2" style="text-align: center; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; width: 1%;"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(thousands)</div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="display: inline; font-weight: bold;">Assets</div></div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 32%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> <td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 14%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"><div style="display: inline; font-weight: bold;"> </div></td> </tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt; text-indent: -9pt;">Operating lease assets</div> </td> <td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; width: 32%;"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">Operating lease assets</div></div> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">$</td> <td style="width: 14%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">11,374</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt; text-indent: -9pt;">Finance lease assets</div> </td> <td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; width: 32%;"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">Other noncurrent assets</div></div> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"> </td> <td style="width: 14%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">839</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">Total leased assets</div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 32%;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"> </div></td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td> <td style="width: 14%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">12,213</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="display: inline; font-weight: bold;">Liabilities</div></div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 32%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> <td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 14%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"><div style="display: inline; font-weight: bold;"> </div></td> </tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">Current</div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 32%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> <td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 14%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt; text-indent: -9pt;">Operating lease liabilities</div> </td> <td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; width: 32%;"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">Current operating lease liability</div></div> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">$</td> <td style="width: 14%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">2,479</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt; text-indent: -9pt;">Finance lease liabilities</div> </td> <td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; width: 32%;"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">Other current liabilities</div></div> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 14%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">336</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">Noncurrent</div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 32%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> <td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 14%;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 1%;"> </td> </tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt; text-indent: -9pt;">Operating lease liabilities</div> </td> <td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; width: 32%;"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">Noncurrent operating lease liability</div></div> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 14%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">8,968</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt; text-indent: -9pt;">Finance lease liabilities</div> </td> <td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; width: 32%;"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">Other long-term liabilities</div></div> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"> </td> <td style="width: 14%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">503</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"> <td colspan="2" style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 51%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">Total lease liabilities</div></div> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td> <td style="width: 14%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">12,286</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"> </td> </tr> </table></div>
Lessee, Operating and Finance Lease, Liability, Maturity [Table Text Block]
   
Operating Leases
    
Financing Leases
  
Twelve months ending September 30, 2020
   $
2,696
     $
369
  
Twelve months ending September 30, 2021
    
2,349
      
296
  
Twelve months ending September 30, 2022
    
1,569
      
183
  
Twelve months ending September 30, 2023
    
1,470
      
48
  
Twelve months ending September 30, 2024
    
969
      
2
  
Thereafter
    
6,199
      
-
  
Total
    
15,252
      
898
  
Less: Interest
    
3,805
      
60
  
Present value of lease liabilities
   $
11,447
     $
838
  
Lessee, Operating Lease, Disclosure [Table Text Block]
   
Operating Leases
  
Year ending December 31, 2019
   $
2,862
  
Year ending December 31, 2020
    
1,904
  
Year ending December 31, 2021
    
1,242
  
Year ending December 31, 2022
    
640
  
Year ending December 31, 2023
    
548
  
Thereafter
    
1,259
  
Total future minimum lease payments
   $
8,455
  
Lease, Cost [Table Text Block]
 
 
  
Three Months ended September 30,
    
Nine Months ended September 30,
  
 
Classification
  
2019
    
2019
  
Total Lease Cost by Type:
                  
Operating lease cost(1)
Operating Expense
   $
1,085
     $
3,281
  
Finance lease cost
                  
Amortization of leased assets
Operating Expense
    
85
      
236
  
Interest on lease liabilities
Interest Expense
    
10
      
27
  
Net lease cost
 
   $
1,180
     $
3,544
  
Supplemental cash flow disclosures:
                  
Cash paid for amounts included in the measurement of lease liabilities:
                  
Operating cash flows from operating leases
 
    
 
     $
2,195
  
Operating cash flows from finance leases
 
    
 
     $
77
  
Financing cash flows from finance leases
 
    
 
     $
201
  
Leased assets obtained in exchange for new operating lease liabilities
 
    
 
     $
1,714
  
Leased assets obtained in exchange for new finance lease liabilities
 
    
 
     $
520
  
   
As of
  
Lease Term and Discount Rate
    
September 30, 2019
  
Weighted-average remaining lease term (years)
        
Operating leases
    
9.7
  
Finance leases
    
2.8
  
Weighted-average discount rate
        
Operating leases
    
5.78
 %
Finance leases
    
4.83
 %