Transaction Details

Footnotes

Reflects the weighted average purchase price. The highest price at which shares were purchased was $3.78 and the lowest price at which shares were purchased was $3.63. 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 shares purchased by Stoney Lonesome HF LP ("Stoney"). Mr. Coghill is the president of the general partner of Stoney. Mr. Coghill is a control person of Stoney and may be deemed to beneficially own the securities held by Stoney. Mr. Coghill disclaims beneficial ownership of all shares held by Stoney, except to the extent of any pecuniary interest therein.