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Note 3 - Inventories
3 Months Ended
Mar. 31, 2017
Notes to Financial Statements  
Inventory Disclosure [Text Block]
NOTE
3
- INVENTORIES
 
Inventories are stated at the lower of cost or market. The costs for approximately
70%
of inventories at
March
31,
2017
and
72%
of inventories at
December
 
31,
2016
are determined using the last-in,
first
-out (LIFO) method, with the remainder determined using the
first
-in,
first
-out (FIFO) method applied on a consistent basis. An actual valuation of inventory under the LIFO method is made at the end of each year based on the inventory levels and costs at that time. Interim LIFO calculations are based on management’s estimate of expected year-end inventory levels and costs and are subject to the final year-end LIFO inventory valuation.
 
The major components of inventories are as follows (net of LIFO reserves of
$59.2
million and
$58.4
million at
March
31,
2017
and
December
 
31,
2016,
respectively):
 
 
 
March 31,
2017
 
 
December 31,
201
6
 
Raw materials and in-process
  $
15,671
    $
17,986
 
Finished parts
   
45,402
     
43,423
 
Finished products
   
6,957
     
7,640
 
Total inventories
  $
68,030
    $
69,049