11. Subsequent Events

Hercules and Riverside Debt Assignment

On April 4, 2016, the Company entered into an Assignment and Second Amendment to Loan and Security Agreement (the “Assignment Agreement”) with Riverside Merchant Partners, LLC (“Riverside”), and Hercules, pursuant to which Hercules sold $1.0 million of the principal amount outstanding under the Hercules Term Loan, as amended to Riverside. In addition, pursuant to the terms of the Assignment Agreement, Riverside acquired an option to purchase an additional $2.0 million of the principal amount outstanding under the Hercules Term Loan from Hercules. On April 18, 2016, Riverside purchased an additional $1.0 million of the principal amount of the Hercules Term Loan and on April 27, 2016, Riverside purchased an additional $1.0 million of the principal amount of the Hercules Term Loan from Hercules.

Riverside Debt Exchange

On April 4, 2016, the Company entered into an exchange agreement (the “Exchange Agreement”) with Riverside, pursuant to which the Company agreed to exchange $1.0 million of the principal amount outstanding under the Hercules Term Loan held by Riverside for a subordinated convertible promissory note in the principal amount of $1.0 million (the “First Exchange Note”) and a warrant to purchase 100,000 shares of common stock of the Company at a fixed exercise price of $1.62 per share (the “First Exchange Warrant”) (the “Exchange”). In addition, pursuant to the terms and conditions of the Exchange Agreement, the Company and Riverside had the option to exchange an additional $2.0 million of the principal amount of the Hercules Term Loan for an additional subordinated convertible promissory note in the principal amount of up to $2.0 million and an additional warrant to purchase 100,000 shares of common stock (the “Second Exchange Warrant”). On April 18, 2016, the Company and Riverside exercised their option to exchange an additional $1.0 million of the principal amount of the Hercules Term Loan for an additional subordinated convertible promissory note in the principal amount of $1.0 million (the “Second Exchange Note”). Additionally, on April 27, 2016, the Company and Riverside exercised their option to exchange an additional $1.0 million of the principal amount of the Term Loan for an additional subordinated convertible promissory note in the principal amount of $1.0 million (the “Third Exchange Note”) and an additional warrant to purchase 100,000 shares of the Company’s common stock at a fixed exercise price of $1.66 per share. The First Exchange Note, the Second Exchange Note and the Third Exchange Note are collectively referred to herein as the “Exchange Notes.”

All principal accrued under the Exchange Notes is convertible into shares of common stock at the election of the Holder at any time at a fixed conversion price of $1.43 per share (the “Conversion Price”). All principal outstanding under each of the Exchange Notes will be due on April 3, 2018 (the “Maturity Date”). Each of the Exchange Notes bears interest at a rate of 6% per annum, with the interest that would accrue on the initial principal amount of the Exchange Notes during the first 12 months being guaranteed and deemed earned as of the date of issuance. Prior to the Maturity Date, all interest accrued under the Exchange Notes is payable in cash or, if certain conditions are met, payable in shares of common stock at the Company’s option, at a conversion price of $1.34 per share.

Pursuant to the terms of the Third Exchange Note, since the volume-weighted average price of the Company’s common stock was less than the Conversion Price on May 6, 2016, the Company issued an additional 140,000 shares of common stock (the “True-Up Shares”) to Riverside.

As of May 13, 2016, the entire principal amount of the First and Second Exchange Notes, $200,000 of the Third Exchange Note, and the interest related to the First, Second, and Third Exchange Notes has been converted into 1,672,788 shares of common stock leaving the total principal balance outstanding under the Exchange Notes at $800,000.