Power of Attorney
The
undersigned hereby constitutes and appoints Frank A. Zommerfeld the undersigned's
true and lawful attorney-in-fact to:
(1) 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;
(2) 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, or 5 and the timely filing of such form with the United States Securities
and Exchange Commission and any other authority; and
(3) 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.
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 the undersigned
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 such attorney-in-fact's 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 attorney-in-fact,
in serving in such capacity at the request of the undersigned, is not assuming
any of the undersigned's responsibilities to comply with Section 16 of the
Securities Exchange Act of 1934. This Power of Attorney can only be revoked
by delivering a signed, original "Revocation of Power of Attorney"
to the attorney-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 23rd day of February, 2016.