Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v2.4.0.8
Subsequent Events - Additional Information (Detail) (Subsequent Event, USD $)
In Millions, except Share data, unless otherwise specified
0 Months Ended
Jul. 26, 2013
Jul. 12, 2013
First Tranche
Jul. 12, 2013
Fda Clearance
Jul. 12, 2013
Second Ent Laser
Jul. 12, 2013
Third Ent Laser
Jul. 12, 2013
Valam Warrant
Jun. 30, 2013
Valam Warrant
Subsequent Event [Line Items]              
Maximum stock offering price $ 30            
Warrants issued to purchase common stock             165,000
Warrants price of warrants             6.00
Vesting of warrants   30,000 55,000 40,000 40,000    
ENT laser revenues required during a 12-month period       $ 5 $ 10    
Plan expiration date           Jul. 14, 2020