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Business Segment Information (Tables)
 9 Months Ended
Jun. 30, 2014
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Information concerning our business segments is as follows:
 
Three Months Ended
 
Nine Months Ended
 
June 30, 2014
 
June 30, 2013
 
June 30, 2014
 
June 30, 2013
 
(dollars in thousands)
Net Revenues:
 
 
 
 
 
 
 
Solar and semiconductor equipment
$
6,764

 
$
8,426

 
$
29,615

 
$
21,647

Polishing supplies and equipment
2,426

 
1,972

 
7,063

 
6,226

 
$
9,190

 
$
10,398

 
$
36,678

 
$
27,873

Operating income (loss):
 
 
 
 
 
 
 
Solar and semiconductor equipment
$
(3,246
)
 
$
(7,719
)
 
$
(6,824
)
 
$
(13,271
)
Polishing supplies and equipment
654

 
315

 
1,622

 
847

Non-segment related
(1,279
)
 
(2,845
)
 
(3,682
)
 
(6,038
)
 
$
(3,871
)
 
$
(10,249
)
 
$
(8,884
)
 
$
(18,462
)

 
June 30,
2014
 
September 30,
2013
 
(dollars in thousands)
Identifiable Assets:
 
 
 
Solar and semiconductor equipment
$
90,244

 
$
106,723

Polishing supplies and equipment
6,275

 
4,224

 
$
96,519

 
$
110,947