Note Receivable	12 Months Ended
Sep. 30, 2013
Note Receivable	NOTE 2. NOTE RECEIVABLE As part of the proceeds from the sale of Unidym in January 2011, Arrowhead received a Note Receivable from Wisepower (the “Wisepower Note”) in the face amount of $2.5 million. On January 24, 2013, the Company entered into an agreement to sell the Wisepower Note. As consideration for selling the Wisepower Note the Company received 1,570,000 shares of Wisepower stock, (the “First Tranche”). Per the terms of the agreement, the Company was entitled to receive additional consideration (the “Second Tranche”) based on the proceeds realized from the First Tranche, at which time the Company would deliver the Wisepower Note to the Purchaser. As of September 30, 2013, the Company sold all shares of Wisepower from the First Tranche, and realized approximately $1.4 million in proceeds. It is unclear when or if the Company will receive the Second Tranche. The Company recorded the $1.4 million proceeds realized from the First Tranche against the $2.5 million value of the Wisepower Note, and has recorded a reserve for the balance of the receivable of $1.1 million, which is presented as a part of other expense on the Company’s Statement of Operations.

Note Receivable

12 Months Ended

Sep. 30, 2013

NOTE 2. NOTE RECEIVABLE

As part of the proceeds from the sale of Unidym in January 2011, Arrowhead received a Note Receivable from Wisepower (the “Wisepower Note”) in the face amount of $2.5 million. On January 24, 2013, the Company entered into an agreement to sell the Wisepower Note. As consideration for selling the Wisepower Note the Company received 1,570,000 shares of Wisepower stock, (the “First Tranche”). Per the terms of the agreement, the Company was entitled to receive additional consideration (the “Second Tranche”) based on the proceeds realized from the First Tranche, at which time the Company would deliver the Wisepower Note to the Purchaser.

As of September 30, 2013, the Company sold all shares of Wisepower from the First Tranche, and realized approximately $1.4 million in proceeds. It is unclear when or if the Company will receive the Second Tranche. The Company recorded the $1.4 million proceeds realized from the First Tranche against the $2.5 million value of the Wisepower Note, and has recorded a reserve for the balance of the receivable of $1.1 million, which is presented as a part of other expense on the Company’s Statement of Operations.