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Inventories (Tables)
 9 Months Ended
Sep. 30, 2012
Inventories [Abstract]  
Schedule Of Inventories

 

 

 

 

 

 

 

 

 

 

September 30,
2012

 

December 31,
2011

 

Finished goods and demonstration equipment

 

$

2,450

 

$

2,644

 

Purchased parts and subassemblies

 

 

3,300

 

 

3,554

 

 

 

$

5,750

 

$

6,198