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Note 7 - Balance Sheet Details
 3 Months Ended
Mar. 31, 2017
Notes to Financial Statements  
Supplemental Balance Sheet Disclosures [Text Block]
7
. Balance Sheet Details
 
Inventories consist of the following:
 
   
March 31,
2017
    
December 31,
2016
  
                 
Raw material
   $
229,337
     $
218,911
  
Work-in-process
    
4,093
      
2,950
  
Finished goods
    
157,478
      
127,870
  
Total
   $
390,908
     $
349,731
  
 
Property and equipment consists of the following:
 
   
March 31,
2017
    
December 31,
2016
  
                 
Land and improvements
   $
12,585
     $
12,079
  
Buildings and improvements
    
125,920
      
122,747
  
Machinery and equipment
    
84,140
      
81,687
  
Dies and tools
    
23,814
      
23,269
  
Vehicles
    
1,615
      
1,474
  
Office equipment and systems
    
67,512
      
66,929
  
Leasehold improvements
    
2,380
      
2,319
  
Construction in progress
    
7,428
      
8,654
  
Gross property and equipment
    
325,394
      
319,158
  
Accumulated depreciation
    
(110,004
 )    
(106,365
 )
Total
   $
215,390
     $
212,793