XML 65 R20.htm IDEA: XBRL DOCUMENT v2.4.0.8
Note 2 - Inventory (Tables)
6 Months Ended
Jun. 30, 2014
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
   

June 30,

2014

   

December 31,

2013

 

At average cost (approximates current cost)

               

Finished goods

  $ 25,111     $ 13,590  

Work in process

    1,906       1,569  

Raw materials and supplies

    50,343       36,292  
      77,360       51,451  

LIFO reserve

    (10,019

)

    (9,287

)

Total inventory

  $ 67,341     $ 42,164