Transaction Details

Footnotes

Reflects the weighted average purchase price. The highest price at which shares were purchased was $3.735 and the lowest price at which shares were purchased was $3.53. The reporting person has reported on a single line all transactions that occurred within a one-dollar price range. The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer or a shareholder of the issuer, full information regarding the number of shares purchased at each separate price. | Reflects the weighted average purchase price. The highest price at which shares were purchased was $3.945 and the lowest price at which shares were purchased was $3.81. The reporting person has reported on a single line all transactions that occurred within a one-dollar price range. The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer or a shareholder of the issuer, full information regarding the number of shares purchased at each separate price. | Reflects the weighted average purchase price. The highest price at which shares were purchased was $3.915 and the lowest price at which shares were purchased was $3.835. The reporting person has reported on a single line all transactions that occurred within a one-dollar price range. The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer or a shareholder of the issuer, full information regarding the number of shares purchased at each separate price. | Securities owned directly by Stoney Lonesome HF LP ("Stoney Lonesome"). Mr. Coghill, as the President and sole shareholder of CDC Financial, Inc. ("CDC Financial"), the managing member of the general partner of Stoney Lonesome, may be deemed to beneficially own the securities owned directly by Stoney Lonesome. | Securities owned directly by The Drake Helix Holdings, LLC ("Drake Helix"). Mr. Coghill, as the President and sole shareholder of CDC Financial, the managing member of Drake Helix, may be deemed to beneficially own the securities owned directly by Drake Helix. | Mr. Coghill disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, and this report shall not be deemed to be an admission that Mr. Coghill is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.