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Note 11 - Deferred Compensation Plan
 9 Months Ended
Sep. 30, 2018
Notes to Financial Statements  
Compensation and Employee Benefit Plans [Text Block]
11.
DEFERRED COMPENSATION PLAN
 
The following table summarizes the deferred compensation plan balances in the Condensed Consolidated Balance Sheets (in thousands):
 
   
September 30,
    
December 31,
  
   
2018
    
2017
  
Deferred compensation plan asset components:
                
Cash surrender value of corporate-owned life insurance policies
   $
14,141
     $
11,455
  
Fair value of mutual funds and money market funds
    
16,284
      
16,625
  
Total
   $
30,425
     $
28,080
  
                 
Deferred compensation plan assets reported in:
                
Other long-term assets
   $
30,425
     $
28,080
  
                 
Deferred compensation plan liabilities reported in:
                
Accrued compensation and related benefits (short-term)
   $
447
     $
356
  
Other long-term liabilities
    
30,412
      
28,087
  
Total
   $
30,859
     $
28,443