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Note 8 - Accrued Expenses
 3 Months Ended
Mar. 31, 2020
Notes to Financial Statements  
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
8.
ACCRUED EXPENSES
 
Accrued expenses consist of the following:
 
   
March 31,
    
December 31,
  
   
2020
    
2019
  
Sales commissions
   $
2,755
     $
2,542
  
Subcontracting labor
    
742
      
990
  
Salaries, bonuses and related benefits
    
11,781
      
14,715
  
Warranty accrual
    
1,537
      
1,576
  
Other
    
7,289
      
7,095
  
    $
24,104
     $
26,918
  
 
The change in warranty accrual during the
three
months ended
March 31, 2020
primarily related to repair costs incurred and adjustments to pre-existing warranties.  There were
no
new material warranty charges incurred during the
three
months ended
March 31, 2020
.
 
Restructuring Activities
 
Included within other accrued expenses in the table above are costs accrued related to the Company’s restructuring activities.  Activity and liability balances related to restructuring costs for the
three
months ended
March 31, 2020
are as follows:
 
     
 
    
Three Months Ended
      
 
  
     
 
    
March 31, 2020
      
 
  
   
Liability at
      
 
    
Cash Payments
    
Liability at
  
   
December 31,
    
New
    
and Other
    
March 31,
  
   
2019
    
Charges
    
Settlements
    
2020
  
Severance costs
   $
-
     $
128
     $
(128
 )   $
-
  
Other restructuring costs
    
44
      
-
      
-
      
44
  
Total
   $
44
     $
128
     $
(128
 )   $
44