XML 55 R41.htm IDEA: XBRL DOCUMENT v3.19.1
Note 19 - Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2018
Notes Tables  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
   
2018
   
2017
 
                                                                 
   
Total
   
Level 1
   
Level 2
   
Level 3
   
Total
   
Level 1
   
Level 2
   
Level 3
 
                                                                 
Marketable equity securities
  $
27,549
    $
27,549
     
-
     
-
    $
26,664
    $
26,664
     
-
     
-
 
Fair Value, by Balance Sheet Grouping [Table Text Block]
   
201
8
   
201
7
 
   
Carrying
Value
   
Estimated
Fair Value
   
Carrying
Value
   
Estimated
Fair Value
 
   
(in thousands)
 
Long-term debt
  $
211,031
    $
210,234
    $
172,636
    $
171,289