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Segment Reporting (Tables)
3 Months Ended
Apr. 30, 2012
Segment Reporting [Abstract]  
Business segment net sales and operating income results
Business segment net sales and operating income results are as follows:
 
Three Months Ended
 
April 30,
2012
 
April 30,
2011
Net sales
 
 
 
Applied Technology
$
50,480

 
$
39,125

Engineered Films
41,094

 
30,091

Aerostar
10,801

 
15,139

Electronic Systems
19,120

 
19,477

Intersegment eliminations
(3,580
)
 
(2,291
)
Consolidated net sales
$
117,915

 
$
101,541

 
 
 
 
Operating income (loss)
 
 
 
Applied Technology
$
20,910

 
$
15,074

Engineered Films
9,179

 
4,129

Aerostar
(1,161
)
 
4,062

Electronic Systems
3,695

 
3,412

Intersegment eliminations
(31
)
 
12

Total reportable segment income
32,592

 
26,689

Administrative and general expenses
(4,160
)
 
(3,156
)
Consolidated operating income
$
28,432

 
$
23,533