Note 12. Subsequent Event	12 Months Ended
Mar. 31, 2012
Subsequent Events [Text Block]	Note 12. Subsequent Event On April 27, 2012, we entered into a purchase agreement (the “Purchase Agreement”) with Lincoln Park Capital Fund, LLC (“LPC”), pursuant to which we have the right to sell to LPC up to $15 million in shares of our common stock from time-to-time over a period of up to three years, subject to certain limitations and conditions set forth in the Purchase Agreement. In consideration for entering into the Purchase Agreement, we issued to LPC 160,000 shares of our common stock. We received $1 million of the $15 million upon signing of the Purchase Agreement for the sale to LPC of 599,880 shares of our common stock at a price of $1.667 per share. In connection with that sale, we also issued to LPC 15,333 additional shares of our common stock, for which we received no cash proceeds. This total maximum amount of $15 million would increase to $21 million if the aggregate market value of shares of our common stock held by non-affiliates reached at least $75 million during the 36-month term of the Purchase Agreement. The Purchase Agreement contains customary representations, warranties and agreements between us and LPC, limitations and conditions to completing future sale transactions, indemnification rights and other obligations of the parties. In connection with the initial purchase under the Purchase Agreement, and any future sales under the Purchase Agreement, the Lender waived the repayment requirement under the Loan Agreement.

Note 12. Subsequent Event

12 Months Ended

Mar. 31, 2012

Note 12. Subsequent Event

On April 27, 2012, we entered into a purchase agreement (the “Purchase Agreement”) with Lincoln Park Capital Fund, LLC (“LPC”), pursuant to which we have the right to sell to LPC up to $15 million in shares of our common stock from time-to-time over a period of up to three years, subject to certain limitations and conditions set forth in the Purchase Agreement. In consideration for entering into the Purchase Agreement, we issued to LPC 160,000 shares of our common stock. We received $1 million of the $15 million upon signing of the Purchase Agreement for the sale to LPC of 599,880 shares of our common stock at a price of $1.667 per share. In connection with that sale, we also issued to LPC 15,333 additional shares of our common stock, for which we received no cash proceeds. This total maximum amount of $15 million would increase to $21 million if the aggregate market value of shares of our common stock held by non-affiliates reached at least $75 million during the 36-month term of the Purchase Agreement. The Purchase Agreement contains customary representations, warranties and agreements between us and LPC, limitations and conditions to completing future sale transactions, indemnification rights and other obligations of the parties. In connection with the initial purchase under the Purchase Agreement, and any future sales under the Purchase Agreement, the Lender waived the repayment requirement under the Loan Agreement.