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Quarterly Information (unaudited)
 12 Months Ended
Dec. 31, 2013
Quarterly Information (unaudited) [Abstract]  
Quarterly Information (unaudited)
19.
Quarterly Information (unaudited)

The following unaudited quarterly financial information includes, in management’s opinion, all the normal and recurring adjustments necessary to fairly state the results of operations and related information for the periods presented.

 
 
For the three months ended
 
 
 
March 31,
2013
  
June 30,
2013
  
September 30,
2013
  
December 31,
2013
 
 
 
  
  
  
 
Product revenues
 
$
1,392,000
  
$
1,408,000
  
$
1,616,000
  
$
2,706,000
 
Gross profit
  
636,000
   
800,000
   
685,000
   
1,580,000
 
Development revenues
  
2,366,000
   
859,000
   
1,095,000
   
754,000
 
Operating expenses
  
9,739,000
   
8,022,000
   
10,241,000
   
11,452,000
 
Other income (expense)
  
(930,000
)
  
3,152,000
   
3,203,000
   
(923,000
)
Net loss
 
$
(7,667,000
)
 
$
(3,211,000
)
 
$
(5,258,000
)
 
$
(10,041,000
)
Basic and diluted net loss per share
 
$
(0.11
)
 
$
(0.05
)
 
$
(0.08
)
 
$
(0.14
)

 
 
For the three months ended
 
 
 
March 31,
2012
  
June 30,
2012
  
September 30,
2012
  
December 31,
2012
 
 
 
  
  
  
 
Product revenues
 
$
1,481,000
  
$
1,947,000
  
$
1,314,000
  
$
3,967,000
 
Gross profit
  
628,000
   
915,000
   
611,000
   
2,555,000
 
Development revenues
  
3,000
   
2,429,000
   
2,000
   
3,358,000
 
Operating expenses
  
8,996,000
   
10,304,000
   
10,945,000
   
8,674,000
 
Other income (expense)
  
(960,000
)
  
(923,000
)
  
(916,000
)
  
(1,062,000
)
Net loss
 
$
(9,325,000
)
 
$
(7,883,000
)
 
$
(11,248,000
)
 
$
(3,823,000
)
Basic and diluted net loss per share
 
$
(0.16
)
 
$
(0.13
)
 
$
(0.19
)
 
$
(0.06
)