Note A - Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2013
Accounting Policies [Abstract]  
Property, Plant, And Equipment, Useful Lives [Table Text Block]

Buildings (years)

20

-

50 

 

Machinery and equipment (years)            

5

- 

15  

Software (years)

3

- 

5  

 
Schedule of Finite-Lived Intangible Assets [Table Text Block]

Technology and drawings (years)            

15

 -

20

 

Customer relationships (years)

9

 -

10 

Other intangibles (years)

2

 -

18 

 

Schedule of Product Warranty Liability [Table Text Block]
   

2013

   

2012

   

2011

 

Balance at beginning of year

  $ 1,133     $ 1,228     $ 1,543  

Provision

    1,220       1,394       1,081  

Claims

    (1,183 )     (1,489 )     (1,396 )

Balance at end of year

  $ 1,170     $ 1,133     $ 1,228