CUSIP No. 45254P508 Page      of      Pages

EXHIBIT A

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned acknowledge and agree that the foregoing statement on this Amendment No. 2 to Schedule 13D with respect to the Common Stock is filed on behalf of each of the undersigned and that all subsequent amendments to this Amendment No. 2 to Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing additional joint acquisition statements. Additionally, the undersigned acknowledge and agree to the inclusion of this Agreement as an Exhibit to this Amendment No. 2 to Schedule 13D. 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 therein, but shall not be responsible for the completeness and accuracy of the information concerning the other, except to the extent that he or it knows or has reason to believe that such information is inaccurate.

Dated: November 18, 2016

/s/ Richard H. Pickup
RICHARD H. PICKUP
RHP TRUST, DATED MAY 31, 2011
By:	/s/ Richard H. Pickup
Name:	Richard H. Pickup
Its:	Trustee