Exhibit 1

Joint Filing Agreement

The undersigned agree that the foregoing statement on Schedule 13D, dated February 16, 2016, is being filed with the Securities and Exchange Commission on behalf of each of the undersigned pursuant to Rule 13d-1(k).

Dated: February 16, 2016.

PRESCOTT General partners LLC

             /s/ Scott J. Vassalluzzo            

Name:  Scott J. Vassalluzzo

Title:    Managing Member

PRESCOTT ASSOCIATES L.P.

By: Prescott General Partners LLC

Its: General Partner

             /s/ Scott J. Vassalluzzo            

Name:  Scott J. Vassalluzzo

Title:    Managing Member

             /s/ Thomas W. Smith            

Thomas W. Smith

             /s/ Scott J. Vassalluzzo            

Scott J. Vassalluzzo