EX-2 3 ex2.htm EXHIBIT 2

EXHIBIT 2
 
JOINT FILING AGREEMENT
 

The undersigned hereby agree to the joint filing of the Amendment No. 1 to Schedule 13D to which this Agreement is attached.

 

Dated:  September 11, 2014

     
 
DISCOVERY GROUP I, LLC,
for itself and as general partner of
DISCOVERY EQUITY PARTNERS, L.P.
   
   
 
By
Michael R. Murphy*
   
Michael R. Murphy
    Managing Member
     
     
  Daniel J. Donoghue*
  Daniel J. Donoghue
   
   
  Michael R. Murphy*
  Michael R. Murphy
     
     
  *By: /s/ Mark Buckley
    Mark Buckley
    Attorney-in-Fact for Daniel J. Donoghue
    Attorney-in-Fact for Michael R. Murphy