POWER OF ATTORNEY
For Executing Forms 3, 4 and 5
The undersigned hereby constitutes and appoints each of Matthew Boyle,
Paul N. Farquhar, Raymond J. Thibault, Jr., and Matthew C. Dallett,
signing singly, his true and lawful attorney-in-fact to:
(1) prepare, execute in the undersigned's name and on the
undersigned's behalf, and submit to the U.S. Securities and Exchange
Commission (the "SEC") a Form ID, including amendments thereto,
authentication documents, and any other documents necessary or
appropriate to obtain codes and passwords enabling the undersigned
to make electronic filings with the SEC of reports required by
Section 16(a) of the Securities Exchange Act of 1934 or any rule
or regulation of the SEC;
(2) execute for and on behalf of the undersigned Forms 3, 4 and 5
in accordance with Section 16(a) of the Securities Exchange Act of
1934 and the rules thereunder;
(3) do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete the
execution of any such Form 3, 4 and 5 and the timely filing of such
form with the United States Securities and Exchange Commission and
any other authority; and
(4) take any other action of any type whatsoever in connection
with the foregoing which, in the opinion of such attorney-in-fact,
may be of benefit to, in the best interest of, or legally required by,
the undersigned, it being understood that the documents executed by
such attorney-in-fact on behalf of the undersigned pursuant to this
Power of Attorney shall be in such form and shall contain such terms
and conditions as such attorney-in-fact may approve in his discretion.
The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform all and every act and thing whatsoever
requisite, necessary and proper to be done in the exercise of any of the
rights and powers herein granted, as fully to all intents and purposes
as such attorney-in-fact might or could do if personally present, with
full power of substitution or revocation, hereby ratifying and confirming
all that such attorney-in-fact, or his substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney and
the rights and powers herein granted. The undersigned acknowledges that
the foregoing attorneys-in-fact, in serving in such capacity at the
request of the undersigned, are not assuming any of the undersigned's
responsibilities to comply with Section 16 of the Securities Exchange
Act of 1934.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 3rd day of February, 2016.
/s/ Matthew Goldfarb
Printed name: Matthew Goldfarb
