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Operating Segments and Related Information (Tables)
 3 Months Ended
Mar. 31, 2013
Operating Segments and Related Information [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
The following table presents certain continuing operating division information in accordance with the provisions of ASC 280, Segments Reporting.
(in thousands)
Solar
 
Biomedical
 
Total
Company
For the three months ended March 31, 2013
 
 
 
 
 
Net sales and revenues
$
1,446

 
$
1,792

 
$
3,238

Operating income (loss) from continuing operations
$
(2,792
)
 
$
190

 
$
(2,602
)
 
 
 
 
 
 
For the three months ended March 31, 2012
 
 
 
 
 
Net sales and revenues
$
5,853

 
$
1,622

 
$
7,475

Operating loss from continuing operations
$
(1,544
)
 
$
(65
)
 
$
(1,609
)
Revenues By Geography [Table Text Block]
The following table shows net sales and revenues by geographic area (based on customer location):
 
Three Months Ended March 31,
(in thousands)
2013
 
%
 
2012
 
%
United States
$
2,273

 
70
%
 
$
2,598

 
35
%
Europe/Africa
336

 
10

 
2,241

 
30

Asia
609

 
19

 
2,583

 
34

Rest of the world
20

 
1

 
53

 
1

 
$
3,238

 
100
%
 
$
7,475

 
100
%