Explanation of Responses:
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1)
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These securities are directly owned by G2 Investment Partners QP LP (the "Reporting Person"). These transactions were previously reported on the Form 4 filed by G2 Investment Partners Management LLC, G2 Investment Partners GP LLC and Josh Goldberg on November 29, 2016 and December 1, 2016.
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2)
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The reported price is the weighted average sale price for sales on November 25, 2016 by the Reporting Person. The actual prices of such sales ranged from $6.65 to $6.68. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
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3)
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The reported price is the weighted average purchase price for purchases on November 25, 2016 by the Reporting Person. The actual prices of such purchases ranged from $6.65 to $6.67 The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.
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4)
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The reported price is the weighted average purchase price for purchases on November 28, 2016 by the Reporting Person. The actual prices of such purchases ranged from $6.65 to $6.75 The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.
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5)
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The reported price is the weighted average sale price for sales on November 28, 2016 by the Reporting Person. The actual prices of such sales ranged from $6.60 to $6.68. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
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6)
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The reported price is the weighted average purchase price for purchases on November 28, 2016 by the Reporting Person. The actual prices of such purchases ranged from $6.60 to $6.65 The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.
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7)
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The reported price is the weighted average purchase price for purchases on November 28, 2016 by the Reporting Person. The actual prices of such purchases ranged from $6.58 to $6.65 The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.
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8)
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The reported price is the weighted average purchase price for purchases on November 29, 2016 by the Reporting Person. The actual prices of such purchases ranged from $6.53 to $6.60 The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.
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9)
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The reported price is the weighted average sale price for sales on November 29, 2016 by the Reporting Person. The actual prices of such sales ranged from $6.50 to $6.53. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
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10)
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The reported price is the weighted average purchase price for purchases on November 29, 2016 by the Reporting Person. The actual prices of such purchases ranged from $6.50 to $6.55 The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.
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11)
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The reported price is the weighted average purchase price for purchases on November 29, 2016 by the Reporting Person. The actual prices of such purchases ranged from $6.50 to $6.55 The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.
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12)
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The reported price is the weighted average sale price for sales on November 29, 2016 by the Reporting Person. The actual prices of such sales ranged from $6.40 to $6.48. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
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13)
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The reported price is the weighted average purchase price for purchases on November 29, 2016 by the Reporting Person. The actual prices of such purchases ranged from $6.38 to $6.40 The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.
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14)
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The reported price is the weighted average purchase price for purchases on November 29, 2016 by the Reporting Person. The actual prices of such purchases ranged from $6.40 to $6.45 The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.
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The reported price is the weighted average sale price for sales on November 29, 2016 by the Reporting Person. The actual prices of such sales ranged from $6.35 to $6.38. The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
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16)
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The reported price is the weighted average purchase price for purchases on November 29, 2016 by the Reporting Person. The actual prices of such purchases ranged from $6.35 to $6.40 The Reporting Person undertakes to provide, upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.
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