Note 4 - Convertible Instruments

During fiscal year 2010 the Company issued 400,000 shares of Series B Convertible Preferred Stock (“Series B”) at $5.00 per share for cash proceeds totaling $2,009,000, of which 95,100 shares remain outstanding at August 31, 2014. Each share of the Series B is convertible into ten shares of the Company’s common stock including any accrued dividend, with an effective fixed conversion price of $.50 per share. The holders of the Series B can only convert their shares to common shares if the Company has sufficient authorized common shares at the time of conversion. Accordingly, the conversion option was contingent upon the Company increasing its authorized common shares, which occurred in April 2010, when the Company’s shareholders approved an increase to the authorized shares of common stock to 100,000,000. At the commitment date, which occurred upon such shareholder approval, the conversion option related to the Series B was beneficial. The intrinsic value of the conversion option at the commitment date resulted in a constructive dividend to the Series B holders of approximately $6,000,000. The constructive dividend increased and decreased additional paid-in capital by identical amounts. The Series B has liquidation preferences over the common shares at $5.00 per share plus any accrued dividends. Dividends are payable to the Series B holders when declared by the board of directors at the rate of $.25 per share per annum. Such dividends are cumulative and accrue whether or not declared and whether or not there are any profits, surplus or other funds or assets of the Company legally available. The Series B holders have no voting rights.

During the three months ended August 31, 2014 and the fiscal year ended May 31, 2014, the Company issued $0 and $1,200,000, respectively, of unsecured convertible notes (the “Notes”) to investors for cash. Each Note is convertible, at the election of the holder, at any time into common shares at a fixed conversion price of the principal balance at August 31, 2014. As of such date, $4,271,250 of the face amount of the Notes was convertible at $.75 per share. The Notes are payable in full between October 1, 2015 and March 6, 2016. The Notes bear interest at rates that range from 5% to 10% per year, payable in cash semi-annually in arrears beginning on April 1, 2013. In connection with the sale of the Notes, detachable common stock warrants, with terms of two or three years, were issued to the investors to purchase a total of 9,451,056 common shares at exercise prices ranging from $.50 to $2.00 per share. The warrants are currently exercisable in full. The Company determined the fair value of the warrants using the Black-Scholes option pricing model utilizing certain weighted average assumptions such as expected stock price volatility, term of the warrants, risk-free interest rates, and expected dividend yield at the commitment date.

Additionally, at the commitment date, the Company determined that the conversion option related to the Notes was beneficial to the investors. As a result, the Company determined the intrinsic value of the conversion option utilizing the fair value of the common stock at the commitment date and the effective conversion price after discounting the Notes for the fair value of the warrants. The fair value of the warrants and the intrinsic value of the conversion option were recorded as a debt discount to the Notes, and a corresponding increase to additional paid-in capital. In general, the respective debt discounts, at the commitment dates, exceeded the face amount of the Notes, and accordingly, the discounts were limited to the cash proceeds received from the Notes. The debt discounts are being amortized over the life of the Notes. During the three months ended August 31, 2014 and 2013, the Company recognized approximately $356,000 and $1,452,000 as interest expense related to amortization of the debt discount. The unamortized discounts are fully amortized upon the conversion of the Notes before maturity. Activity related to the Notes was as follows: