Quarterly report pursuant to Section 13 or 15(d)

Common Stock (Tables)

v2.4.0.8
Common Stock (Tables)
3 Months Ended
Mar. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Components of Stock-Based Compensation Expenses
 
The following table summarizes the stock-based compensation expense from stock option awards, restricted common stock awards, employee stock purchase programs and warrants for the three months ended March 31, 2014 and 2013, and from the period June 28, 2006 (date of inception) to date:
 
 
 
For the three months ended
March 31,
 
Period from
June 28, 2006
(date of
inception) to
March 31,
 
($ in thousands)
 
2014
 
2013
 
2014
 
Employee awards
 
$
1,122
 
$
972
 
$
9,194
 
Non-employee awards
 
 
13
 
 
434
 
 
4,323
 
Non-employee warrants
 
 
—
 
 
117
 
 
1,032
 
Total stock-based compensation expense
 
$
1,135
 
$
1,523
 
$
14,549
 
Summary of Stock Option Activity
The following table summarizes stock option activity:
 
 
 
Outstanding Options
 
Weighted
 
($ in thousands except per share amounts)
 
Number of
Shares
 
Weighted
Average
Exercise
Price
 
Total
Weighted
Average
Intrinsic
Value
 
Average
Remaining
Contractual
Life (in
years)
 
At December 31, 2013
 
 
3,117,777
 
$
4.31
 
$
—
 
 
8.36
 
Options granted
 
 
—
 
 
—
 
 
—
 
 
 
 
Options exercised
 
 
(256,745)
 
 
1.88
 
 
26
 
 
 
 
Options cancelled
 
 
(600,000)
 
 
4.39
 
 
—
 
 
 
 
At March 31, 2014
 
 
2,261,032
 
$
4.57
 
$
—
 
 
8.20
 
Options vested and expected to vest
 
 
2,261,032
 
$
4.57
 
$
—
 
 
8.20
 
Options vested and exercisable
 
 
1,492,699
 
$
4.24
 
$
—
 
 
7.82
 
Nonvested Restricted Stock Shares Activity
The following table summarizes restricted stock activity:
 
 
 
Restricted Stock
 
 
 
Number of
Shares
 
Weighted
Average Grant
Date
Fair Value
 
Unvested balance at December 31, 2013
 
 
3,958,692
 
$
1.93
 
Restricted stock granted
 
 
4,343,692
 
 
2.69
 
Unvested balance at March 31, 2014
 
 
8,302,384
 
$
2.33