On December 21, 2009, the Company issued $2,400,000 in principal of convertible promissory notes (the “Exchange Notes”) and warrants to purchase an aggregate of 935,040 shares of the Company’s common stock (the “Exchange Warrants”) in exchange for 480 shares of outstanding Series A preferred stock (the “Exchange”). The Exchange Warrants had an exercise price of $5.08 and expired three years from issuance. The Exchange Notes bore interest at 1% per annum, matured three years from the date of issuance and were convertible into 450,281 shares of common stock at a fixed conversion price of $5.33. There were no price-based anti-dilution provisions in the Exchange Notes or Exchange Warrants.

At issuance, the value allocated to the Exchange Notes of $2,150,000 was less than the face value of $2,472,000. This original issue discount of $322,000 was being amortized through periodic charges to interest expense using the effective interest method. Amortization charges amounted to $82,000 and $107,000 during the years ended December 31, 2012 and 2011, respectively.

On February 28, 2012, the Company and the holders of the Exchange Notes amended the Exchange Notes. As of the amendment date, the Exchange Notes bore interest at 10% per annum and had a maturity date of June 30, 2013. Interest on the outstanding principal amount of the Exchange Notes was due and payable on the maturity date. The Exchange Notes remained convertible into 450,281 shares of common stock at a fixed conversion price of $5.33.

Concurrent with closing the Investment by RVL (Note 9), on September 25, 2012, the holders of the Exchange Notes exchanged the Exchange Notes for a total of $880,000 in cash (which payment was funded at closing from the proceeds of the Investment) and 1,000,000 newly-issued shares of the Company’s common stock (the “Note Exchange”). The Note Exchange was consummated pursuant to the terms of a termination and exchange agreement entered into by the Company and the holders of the Exchange Notes on September 12, 2012, providing for the extinguishment of the indebtedness represented by the Exchange Notes concurrent with and subject to the Investment.

The Company accounted for this transaction as a troubled debt restructuring in accordance with FASB ASC 470-60, “Troubled Debt Restructurings by Debtors”. The Company recognized a gain on debt restructuring equal to the excess of the carrying amount of the Exchange Notes and related accrued interest of $141,000 over the fair value of the cash and common stock issued in the Note Exchange. For the year ended December 31, 2012, the Company recognized a gain on debt restructuring of $1,048,000, which caused basic and diluted loss per share for the year ended December 31, 2012 to decrease by $0.05. After recording the $1,048,000 gain on debt restructuring and issuing common stock valued at $588,000, the termination of the Exchange Notes resulted in an increase in the Company’s Stockholders’ Equity of $1,636,000.

The Exchange Warrants issued in conjunction with the Exchange Notes expired on December 21, 2012.