XML 56 R41.htm IDEA: XBRL DOCUMENT v2.4.0.8
Employee Stock Plans (Details)
6 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended
Jun. 30, 2013
1999 Stock Plan [Member]
Maximum [Member]
Jun. 30, 2013
1999 Stock Plan [Member]
Stock Options [Member]
Jun. 30, 2013
1999 Stock Plan [Member]
Initial Vesting [Member]
Jun. 30, 2013
1999 Stock Plan [Member]
Periodic Vesting [Member]
Apr. 28, 2011
2009 Stock Plan [Member]
Jun. 30, 2013
2009 Stock Plan [Member]
Jun. 30, 2013
2009 Stock Plan [Member]
Maximum [Member]
Jun. 30, 2013
2009 Stock Plan [Member]
Initial Vesting [Member]
Jun. 30, 2013
2009 Stock Plan [Member]
Periodic Vesting [Member]
Jun. 30, 2013
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Equity award, term 10 years           10 years      
Equity award vesting period     1 year 1 month       1 year 1 month  
Percent of options vested     25.00% 2.08%       25.00% 2.08%  
Shares available for grant   0                
Additional shares reserved for issuance         1,500,000          
Shares reserved for issuance           6,900,000       2,300,000
Number of previously cancelled, forfeited or repurchased shares available for reissuance             7,500,000      
Maximum percent of employees total compensation allowed for purchase of shares                   20.00%
Maximum number of shares per employee per period                   20,000
Purchase price of shares as a percentage of fair market value                   85.00%
Duration of offering period                   6 months