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Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
Reconciliation of Basic and Diluted Earnings (Loss) Per Share
The following is a reconciliation of the numerators and denominators of the basic and diluted net loss per share computations for the three and nine months ended September 30, 2013 and 2012 (in thousands, except per share amounts):
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2013
 
2012
 
2013
 
2012
Net loss (Numerator):
 
 
 
 
 
 
 
Net loss, basic & diluted
$
(3,513
)
 
$
(4,264
)
 
$
(13,587
)
 
$
(8,713
)
Shares (Denominator):
 
 
 
 
 
 
 
Weighted average common shares outstanding
43,184

 
42,806

 
43,039

 
42,564

Shares used in basic computation
43,184

 
42,806

 
43,039

 
42,564

Common shares issuable upon exercise of stock options (treasury stock method)
—

 
—

 
—

 
—

Shares used in diluted computation
43,184

 
42,806

 
43,039

 
42,564

Net loss per share:
 
 
 
 
 
 
 
Basic
$
(0.08
)
 
$
(0.10
)
 
$
(0.32
)
 
$
(0.20
)
Diluted
$
(0.08
)
 
$
(0.10
)
 
$
(0.32
)
 
$
(0.20
)