EXHIBIT 1

Joint Filing Agreement, dated October 16, 2012

PURSUANT TO RULE 13d-1(k)

The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D may be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained herein and therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows that such information is inaccurate.

Dated: October 16, 2012

Emancipation Capital, LP
By:	Emancipation Capital LLC, its general partner
By:	/s/ Charles Frumberg
Name:	Charles Frumberg
Title:	Managing Member
Emancipation Capital LLC
By:	/s/ Charles Frumberg
Name:	Charles Frumberg
Title:	Managing Member
Emancipation Capital Master, Ltd.
By:	/s/ Charles Frumberg
Name:	Charles Frumberg
Title:	Director
Emancipation Capital SPV II LLC
By:	Emancipation Capital LLC, its managing member
By:	/s/ Charles Frumberg
Name:	Charles Frumberg
Title:	Managing Member
/s/ Charles Frumberg
Charles Frumberg