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Business Segment Information (Tables)
 6 Months Ended
Mar. 31, 2013
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Information concerning our business segments is as follows:
 
Three Months Ended
Six Months Ended
 
March 31, 2013
 
March 31, 2012
March 31, 2013
 
March 31, 2012
 
(dollars in thousands)
Net Revenues:
 
 
 
 
 
 
Solar and semiconductor equipment
$
6,187

 
$
19,682

$
13,222

 
$
42,559

Polishing supplies and equipment
1,931

 
1,884

4,253

 
3,735

 
$
8,118

 
$
21,566

$
17,475

 
$
46,294

Operating loss:
 
 
 
 
 
 
Solar and semiconductor equipment
$
(3,604
)
 
$
(6,052
)
$
(8,276
)
 
$
(8,042
)
Polishing supplies and equipment
143

 
67

64

 
213

 
$
(3,461
)
 
$
(5,985
)
$
(8,212
)
 
$
(7,829
)

 
March 31,
2013
 
September 30,
2012
 
(dollars in thousands)
Identifiable Assets:
 
 
 
Solar and semiconductor equipment
$
110,451

 
$
123,923

Polishing supplies and equipment
4,367

 
5,099

 
$
114,818

 
$
129,022

Goodwill:
 
 
 
Solar and semiconductor equipment
$
7,620

 
$
7,627

Polishing supplies and equipment
728

 
728

 
$
8,348

 
$
8,355