EXHIBIT 24.1

JOINT FILING AGREEMENT AND POWER OF ATTORNEY

Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the rules and regulations thereunder, each party hereto hereby agrees to the joint filing, on behalf of each of them, of any filing required by such party under Section 13 or Section 16 of the Exchange Act or any rule or regulation thereunder (including any amendment, restatement, supplement, and/or exhibit thereto) with the Securities and Exchange Commission (and, if such security is registered on a national securities exchange, also with the exchange), and further agrees to the filing, furnishing, and/or incorporation by reference of this agreement as an exhibit thereto. This agreement shall remain in full force and effect until revoked by any party hereto in a signed writing provided to each other party hereto, and then only with respect to such revoking party.

Know all men by these presents, that each of Becker Drapkin Management, L.P., Becker Drapkin Partners (QP), L.P., Becker Drapkin Partners, L.P., BC Advisors, LLC, Steven R. Becker and Matthew A. Drapkin hereby constitute and appoint Ashley Sekimoto, as the true and lawful attorney-in-fact and agent of such party with full power and authority and full power of substitution and resubstitution, for, in the name of, and on behalf of such party, place and stead, in any and all capacities, (i) to execute any and all filings required by such party under Section 13 or Section 16 of the Exchange Act or any rule or regulation thereunder (including any amendment, supplement, and/or exhibit thereto), for, in the name of, and on behalf of such party, (ii) to do and perform any and all acts for, in the name of, and on behalf of such party which said attorney-in-fact determines may be necessary or appropriate to complete and execute any and all such filings, amendments, supplements, and/or exhibits, and any and all other document(s) in connection therewith, (iii) to file such filings, amendments, supplements, exhibits, and/or documents with the Securities and Exchange Commission (and, if such security is registered on a national securities exchange, also with the exchange), and (iv) to perform any and all other acts that said attorney-in-fact or agent determines may be necessary or appropriate in connection with the foregoing that may be in the best interest of or legally required by such party, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, as fully to all intents and purposes as such party might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent shall do or cause to be done by virtue hereof. Each of Becker Drapkin Management, L.P., Becker Drapkin Partners (QP), L.P., Becker Drapkin Partners, L.P., BC Advisors, LLC, Steven R. Becker and Matthew A. Drapkin hereby acknowledge that the foregoing attorney-in-fact and agent in serving in such capacity at the request of such party, is not assuming any of the responsibilities of such party to comply with Section 16 or Section 13(d) of the Exchange Act and the rules and regulations promulgated thereunder.

Remainder of Page Intentionally Left Blank. Signature Page(s) to Follow.

IN WITNESS WHEREOF, each party hereto, being duly authorized, has caused this agreement to be executed and effective as of the date first written above.

Date: March 2, 2011

BECKER DRAPKIN MANAGEMENT, L.P.

By:        BC Advisors, LLC
Its:        General Partner

By:       /s/ Steven R. Becker
Name:  Steven R. Becker
Title:    Co-Managing Member

BECKER DRAPKIN PARTNERS (QP), L.P.

By:       Becker Drapkin Management, L.P.
Its:       General Partner

By:       BC Advisors, LLC
Its:       General Partner

By:        /s/ Steven R. Becker
Name:  Steven R. Becker
Title:    Co-Managing Member

BECKER DRAPKIN PARTNERS, L.P.

By:      Becker Drapkin Management, L.P.
Its:      General Partner

By:      BC Advisors, LLC
Its:      General Partner

By:       /s/ Steven R. Becker
Name:  Steven R. Becker
Title:    Co-Managing Member

BC ADVISORS, LLC

By:       /s/ Steven R. Becker
Name:  Steven R. Becker
Title:    Co-Managing Member

STEVEN R. BECKER

By:       /s/ Steven R. Becker
Name:  Steven R. Becker

MATTHEW A. DRAPKIN

By:      /s/ Matthew A. Drapkin
Name:  Matthew A. Drapkin