Exhibit B
JOINT FILING AGREEMENT
This Agreement is filed as an exhibit to Schedule 13G being filed by
Potomac Capital Management, LLC, Potomac Capital Management II, LP, Potomac
Capital Management, Inc., and Xxxx X. Xxxxx in compliance with Rule 13d-1(k) of
the Securities and Exchange Commission, which requires an agreement in writing
indicating that the Schedule 13G to which this Agreement is attached is filed on
behalf of the below-named entities, that they are each responsible for the
timely filing of the Schedule 13G and any amendments thereto and for the
completeness and accuracy of the information concerning such persons contained
therein.
Dated this 31st day of March, 2009
POTOMAC CAPITAL MANAGEMENT, LLC
By: /s/ Xxxx X. Xxxxx
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Xxxx X. Xxxxx, Managing Member
POTOMAC CAPITAL MANAGEMENT II, LLC
By: /s/ Xxxx X. Xxxxx
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Xxxx X. Xxxxx, President
POTOMAC CAPITAL MANAGEMENT, INC.
By: /s/ Xxxx X. Xxxxx
--------------------------------
Xxxx X. Xxxxx, Managing Member
XXXX X. XXXXX
By: /s/ Xxxx X. Xxxxx
--------------------------------
Xxxx X. Xxxxx
