Quarterly report pursuant to sections 13 or 15(d)

Incentive Stock Plan - Additional Information (Detail)

v2.3.0.11
Incentive Stock Plan - Additional Information (Detail)
6 Months Ended 6 Months Ended
Jun. 30, 2012
2011 Equity Incentive Stock Plan
Jan. 31, 2011
2011 Equity Incentive Stock Plan
Jun. 30, 2012
2012 Equity Incentive Plan
Apr. 30, 2012
2012 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Incentive stock plan, authorized   100,000,000   5,000,000
Incentive stock plan, outstanding 984,799      
Incentive stock plan, issued 940,126   1,107,765  
Incentive stock plan, shares available for issuance 44,673   3,892,235