Exhibit I JOINT FILING AGREEMENT The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this Schedule 13G shall be filed on behalf of each...

                                                            Exhibit I


                             JOINT FILING AGREEMENT

         The undersigned acknowledge and agree that the foregoing statement on
Schedule 13G is filed on behalf of each of the undersigned and that all
subsequent amendments to this Schedule 13G shall be filed on behalf of each of
the undersigned without the necessity of filing additional joint filing
agreements. The undersigned acknowledge that each shall be responsible for the
timely filing of such amendments, and the completeness and accuracy of the
information concerning it contained therein, but shall not be responsible for
the completeness and accuracy of the information concerning the others, except
to the extent that it knows or has reason to believe that such information is
inaccurate.

                                         By: /s/ XXXXX X. XXXX
                                             -----------------
                                                 Xxxxx X. Xxxx

                                         X. X. XXXX & CO., INC.

                                                 By: /s/ XXXXX X. XXXX
                                                     -----------------
                                                         Xxxxx X. Xxxx
                                                         President

                                         X. X. XXXX & CO., L.P.

                                                 By:  X. X. Xxxx & Co., Inc.,
                                                      its general partner

                                                 By:  /s/ XXXXX X. XXXX
                                                     -----------------
                                                          Xxxxx X. Xxxx
                                                          President

                                         XXXX FAMILY TRUST IV

                                                 By:  /s/ XXXXX X. XXXX
                                                     -----------------
                                                          Xxxxx X. Xxxx
                                                          Trustee

                                         By: /s/ XXXXXXX XXXXXX
                                             ------------------
                                                 Xxxxxxx Xxxxxx