|
Note I - Business Segment Information (Tables)
|
12 Months Ended |
|
Dec. 31, 2013
|
| Segment Reporting [Abstract] |
|
| Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] |
|
|
|
2013
|
|
|
%
|
|
|
2012
|
|
|
%
|
|
|
2011
|
|
|
%
|
|
|
United States
|
|
$
|
257,038
|
|
|
|
66
|
|
|
$
|
239,153
|
|
|
|
64
|
|
|
$
|
241,405
|
|
|
|
67
|
|
|
Foreign countries
|
|
|
134,627
|
|
|
|
34
|
|
|
|
136,538
|
|
|
|
36
|
|
|
|
118,085
|
|
|
|
33
|
|
|
Total
|
|
$
|
391,665
|
|
|
|
100
|
|
|
$
|
375,691
|
|
|
|
100
|
|
|
$
|
359,490
|
|
|
|
100
|
|
|
| Schedule of Segment Reporting Information, by Segment [Table Text Block] |
|
|
|
2013
|
|
|
2012
|
|
|
2011
|
|
|
Pumps and pump systems
|
|
$
|
336,779
|
|
|
$
|
318,235
|
|
|
$
|
303,479
|
|
|
Repairs and other
|
|
|
54,886
|
|
|
|
57,456
|
|
|
|
56,011
|
|
|
Total
|
|
$
|
391,665
|
|
|
$
|
375,691
|
|
|
$
|
359,490
|
|
|