Quarterly report pursuant to Section 13 or 15(d)

Assumptions Used to Measure Fair Value of Stock Options (Detail)

v2.4.0.6
Assumptions Used to Measure Fair Value of Stock Options (Detail)
3 Months Ended
Sep. 30, 2012
Minimum [Member]
 
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items]  
Expected term 5 years
Maximum [Member]
 
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items]  
Expected term 10 years
Employees [Member]
 
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items]  
Expected volatility 100.00%
Risk free interest rate, minimum 0.80%
Risk free interest rate, maximum 3.00%
Forfeiture rate 5.00%
Dividend yield 0.00%
Non-Employees [Member]
 
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items]  
Expected volatility 100.00%
Risk free interest rate 3.00%
Forfeiture rate 5.00%
Dividend yield 0.00%
Expected term 10 years