EXHIBIT 1

JOINT FILING UNDERTAKING

The undersigned, being authorized thereunto, hereby execute this agreement as an exhibit to this Schedule 13D to evidence the agreement of the below-named parties, in accordance with rules promulgated pursuant to the Securities Exchange Act of 1934, to file this Schedule, as it may be amended, jointly on behalf of each of such parties.

Dated: June 9, 2011	STEELHEAD PARTNERS, LLC By:   /s/ James Michael Johnston                                     James Michael Johnston Its Member-Manager
	STEELHEAD NAVIGATOR MASTER, L.P. By: Steelhead Partners, LLC, its Investment Manager By:   /s/ James Michael Johnston                                     James Michael Johnston Its Member-Manager
	JAMES MICHAEL JOHNSTON /s/ James Michael Johnston                                              James Michael Johnston
	BRIAN KATZ KLEIN /s/ Brian Katz Klein                                                            Brian Katz Klein