JOINT FILING AGREEMENT
EXHIBIT 2
The undersigned hereby agree to the joint filing of the Schedule 13D to which this Agreement is attached.
Dated: May 4, 2012
| DISCOVERY GROUP I, LLC | |||
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By:
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/s/ Xxxxxxx X. Xxxxxx* | |
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Xxxxxxx X. Xxxxxx
Managing Member
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| Xxxxxx X. Xxxxxxxx* | |||
| Xxxxxx X. Xxxxxxxx* | |||
| Xxxxxxx X. Xxxxxx* | |||
| Xxxxxxx X. Xxxxxx | |||
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By:
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/s/ Xxxx Xxxxxxx | |
| Xxxx Xxxxxxx | |||
| Attorney-in-Fact for Xxxxxx X. Xxxxxxxx | |||
| Attorney-in-Fact for Xxxxxxx X. Xxxxxx | |||
