Note 7 - Loan Agreement	12 Months Ended
Jan. 31, 2013
Debt Disclosure [Text Block]	7. Loan Agreement Senior Secured Six Month Term Loan Agreement As previously reported, the Company entered into a Senior Secured Six Month Term Loan Agreement dated July 27, 2012 (the “Loan Agreement”) with Broadwood, a partnership managed by Broadwood Capital, Inc., the general partner of Broadwood. Broadwood is a significant shareholder of the Company. Pursuant to that Agreement, Broadwood made a $2,000,000 senior secured six month loan (the “Loan”) to the Company and to CWT, as co-borrower. The Loan bore interest at 5% per annum, ranked senior in right of payment to all other indebtedness of the Company and was due and payable in full on January 28, 2013. The Company originally intended to repay the Loan and accrued interest from the $3.0 million in proceeds that was expected to be received from Broadwood in the fourth quarter of fiscal 2013, pursuant to the Stock Purchase Agreement (“SPA”) discussed below. On January 28, 2013, the maturity date of the Loan, the Company was informed by Broadwood, that it was Broadwood’s position that one or more of the conditions precedent to its obligation to purchase the Company’s shares pursuant to the Broadwood SPA had not been satisfied and, as a result, Broadwood would not consummate that purchase and, therefore, the Company would have to repay the Loan in cash. Subsequent to the fiscal year-ended January 31, 2013, the Company repaid the amounts outstanding under the Loan Agreement in full (see Note 14). Stock Purchase Agreement and Stock Purchase Warrants Concurrently with the execution of the Loan Agreement, the Company and Broadwood entered into the SPA. That agreement provided for the purchase by Broadwood of up to 3,000,000 shares of the Company’s common stock (the “Shares”), at a price of $1.00 per Share, subject to the following conditions: (i) during the six month term of the Loan, the Company would use its best commercial efforts to raise at least $3.0 million from the sale of additional equity securities to other investors, which could include other shareholders of the Company, and (ii) the Company remained in compliance with its covenants under the Loan Agreement. The SPA provided that if, at any time between July 27, 2012 and July 27, 2013, the Company sells any shares of its common stock (or sells or issues securities that are convertible or exercisable into shares of common stock) at a price less than $1.00 per share, the Company will be required to issue outright to Broadwood, without additional consideration from it, a number of additional Shares (the “Make-Whole Shares”) sufficient to reduce the per share price paid by Broadwood for the total number of the Shares and Make-Whole Shares issued under the SPA to that lower price. As consideration for the Loan and Broadwood’s entry into the SPA, on July 27, 2012 the Company issued stock purchase warrants (the “Warrants”) to Broadwood entitling it to purchase up to a total of 1,704,546 shares of the Company’s common stock (the “Warrant Shares”), at a price of $1.00 per Warrant Share, at any time through July 2020. On July 27, 2012, the Company also entered into a Warrant Commitment Letter, which provided that if the Company raised less than $3.0 million from sales of equity securities to other investors during the six month term of the Loan, then Broadwood will receive an additional Warrant (the “Additional Warrant”) entitling it to purchase, also at a price of $1.00 per share, an amount of shares of the Company’s common stock to be determined based on a formula in the Warrant Commitment Letter, with such amount not to exceed 1,000,000 additional shares (the amount of such additional shares, “Additional Warrant Shares”). The exercise price is to be adjusted if the Company completes subsequent financings at less than the current exercise price as described below. The Warrants, including the Additional Warrant, provide that if the Company sells shares of its common stock (or any securities that are convertible or exercisable into shares of Company common stock) at a price less than $1.00 per share, then, subject to certain exceptions (including grants of stock incentives and sales of shares to officers, employees or directors under the Company’s equity incentive plans and issuances of shares in business acquisitions), the exercise price of the Warrants, including the Additional Warrant, then outstanding will be reduced to that lower price and the number of Warrant Shares purchasable by Broadwood on exercise of the Warrants and the Additional Warrant will be proportionately increased. The Warrants and the Additional Warrant have been accounted for as derivative liabilities resulting from the instruments’ price protection features. The Warrants and the Additional Warrant (collectively, the “Broadwood Warrants”) also grant to Broadwood the right to require the Company (i) to register the Warrant Shares under the Securities Act of 1933, as amended (the “Securities Act”) for possible resale and (ii) to include the Warrant Shares in any registration statement that the Company may file to register, under the Securities Act, the sale of Company shares for cash. As noted above, the Company was informed by Broadwood on January 28, 2013, that it was Broadwood’s position that one or more of the conditions precedent to its obligation to purchase the Company’s shares pursuant to the SPA had not been satisfied and, as a result, Broadwood would not consummate that purchase. The Company’s position is that, contrary to Broadwood’s assertions, all of the conditions under the SPA had been satisfied, and Broadwood’s refusal to purchase 3,000,000 shares of Company common stock, at the price of $1.00 per share, constituted a material breach by Broadwood of its obligations under the SPA. As a result, as of the date of filing this report, the Company has not issued any Additional Warrant Shares to Broadwood and each party has reserved its rights under and with respect to the SPA and the Broadwood Warrants.

As previously reported, the Company entered into a Senior Secured Six Month Term Loan Agreement dated July 27, 2012 (the “Loan Agreement”) with Broadwood, a partnership managed by Broadwood Capital, Inc., the general partner of Broadwood. Broadwood is a significant shareholder of the Company.

Pursuant to that Agreement, Broadwood made a $2,000,000 senior secured six month loan (the “Loan”) to the Company and to CWT, as co-borrower. The Loan bore interest at 5% per annum, ranked senior in right of payment to all other indebtedness of the Company and was due and payable in full on January 28, 2013. The Company originally intended to repay the Loan and accrued interest from the $3.0 million in proceeds that was expected to be received from Broadwood in the fourth quarter of fiscal 2013, pursuant to the Stock Purchase Agreement (“SPA”) discussed below.

On January 28, 2013, the maturity date of the Loan, the Company was informed by Broadwood, that it was Broadwood’s position that one or more of the conditions precedent to its obligation to purchase the Company’s shares pursuant to the Broadwood SPA had not been satisfied and, as a result, Broadwood would not consummate that purchase and, therefore, the Company would have to repay the Loan in cash. Subsequent to the fiscal year-ended January 31, 2013, the Company repaid the amounts outstanding under the Loan Agreement in full (see Note 14).

Concurrently with the execution of the Loan Agreement, the Company and Broadwood entered into the SPA. That agreement provided for the purchase by Broadwood of up to 3,000,000 shares of the Company’s common stock (the “Shares”), at a price of $1.00 per Share, subject to the following conditions: (i) during the six month term of the Loan, the Company would use its best commercial efforts to raise at least $3.0 million from the sale of additional equity securities to other investors, which could include other shareholders of the Company, and (ii) the Company remained in compliance with its covenants under the Loan Agreement. The SPA provided that if, at any time between July 27, 2012 and July 27, 2013, the Company sells any shares of its common stock (or sells or issues securities that are convertible or exercisable into shares of common stock) at a price less than $1.00 per share, the Company will be required to issue outright to Broadwood, without additional consideration from it, a number of additional Shares (the “Make-Whole Shares”) sufficient to reduce the per share price paid by Broadwood for the total number of the Shares and Make-Whole Shares issued under the SPA to that lower price.

As consideration for the Loan and Broadwood’s entry into the SPA, on July 27, 2012 the Company issued stock purchase warrants (the “Warrants”) to Broadwood entitling it to purchase up to a total of 1,704,546 shares of the Company’s common stock (the “Warrant Shares”), at a price of $1.00 per Warrant Share, at any time through July 2020.

On July 27, 2012, the Company also entered into a Warrant Commitment Letter, which provided that if the Company raised less than $3.0 million from sales of equity securities to other investors during the six month term of the Loan, then Broadwood will receive an additional Warrant (the “Additional Warrant”) entitling it to purchase, also at a price of $1.00 per share, an amount of shares of the Company’s common stock to be determined based on a formula in the Warrant Commitment Letter, with such amount not to exceed 1,000,000 additional shares (the amount of such additional shares, “Additional Warrant Shares”). The exercise price is to be adjusted if the Company completes subsequent financings at less than the current exercise price as described below.

The Warrants, including the Additional Warrant, provide that if the Company sells shares of its common stock (or any securities that are convertible or exercisable into shares of Company common stock) at a price less than $1.00 per share, then, subject to certain exceptions (including grants of stock incentives and sales of shares to officers, employees or directors under the Company’s equity incentive plans and issuances of shares in business acquisitions), the exercise price of the Warrants, including the Additional Warrant, then outstanding will be reduced to that lower price and the number of Warrant Shares purchasable by Broadwood on exercise of the Warrants and the Additional Warrant will be proportionately increased. The Warrants and the Additional Warrant have been accounted for as derivative liabilities resulting from the instruments’ price protection features.

The Warrants and the Additional Warrant (collectively, the “Broadwood Warrants”) also grant to Broadwood the right to require the Company (i) to register the Warrant Shares under the Securities Act of 1933, as amended (the “Securities Act”) for possible resale and (ii) to include the Warrant Shares in any registration statement that the Company may file to register, under the Securities Act, the sale of Company shares for cash.

As noted above, the Company was informed by Broadwood on January 28, 2013, that it was Broadwood’s position that one or more of the conditions precedent to its obligation to purchase the Company’s shares pursuant to the SPA had not been satisfied and, as a result, Broadwood would not consummate that purchase.

The Company’s position is that, contrary to Broadwood’s assertions, all of the conditions under the SPA had been satisfied, and Broadwood’s refusal to purchase 3,000,000 shares of Company common stock, at the price of $1.00 per share, constituted a material breach by Broadwood of its obligations under the SPA. As a result, as of the date of filing this report, the Company has not issued any Additional Warrant Shares to Broadwood and each party has reserved its rights under and with respect to the SPA and the Broadwood Warrants.