EXHIBIT 99.1

                                   SIGNATURES

Date:    March 10, 2014                 BECKER DRAPKIN MANAGEMENT, L.P.

                                        By:    BC Advisors, LLC
                                        Its:   General Partner

                                        By:    /s/ Ashley Sekimoto

                                               ---------------------------------
                                        Name:  Ashley Sekimoto
                                        Title: Attorney-in-Fact

                                        BECKER DRAPKIN PARTNERS (QP), L.P.

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

                                        By:    BC Advisors, LLC
                                        Its:   General Partner

                                        By:    /s/ Ashley Sekimoto

                                               ---------------------------------
                                        Name:  Ashley Sekimoto
                                        Title: Attorney-in-Fact

                                        BECKER DRAPKIN PARTNERS, L.P.

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

                                        By:    BC Advisors, LLC
                                        Its:   General Partner

                                        By:    /s/ Ashley Sekimoto

                                               ---------------------------------
                                        Name:  Ashley Sekimoto
                                        Title: Attorney-in-Fact

                                        BD PARTNERS IV, L.P.

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

                                        By:    BC Advisors, LLC
                                        Its:   General Partner

                                        By:    /s/ Ashley Sekimoto

                                               ---------------------------------
                                        Name:  Ashley Sekimoto
                                        Title: Attorney-in-Fact

                                        BC ADVISORS, LLC

                                        By:    /s/ Ashley Sekimoto

                                               ---------------------------------
                                        Name:  Ashley Sekimoto
                                        Title: Attorney-in-Fact

                                        STEVEN R. BECKER

                                        /s/ Ashley Sekimoto

                                        ----------------------------------------
                                        Name:  Ashley Sekimoto
                                        Title: Attorney-in-Fact

                                        MATTHEW A. DRAPKIN

                                        /s/ Ashley Sekimoto

                                        ----------------------------------------
                                        Name:  Ashley Sekimoto
                                        Title: Attorney-in-Fact