Debt	6 Months Ended
Jun. 30, 2018
Debt
Debt	5. Debt On May 8, 2018, the Company entered into a securities purchase agreement (the “Securities Purchase Agreement”) with Iliad Research and Trading, L.P. (“IRT”), pursuant to which the Company issued to IRT a secured convertible promissory note (the “Note”) in the aggregate principal amount of $3,325,000 for an aggregate purchase price of $2,000,000 cash and $1,000,000 aggregate principal amount of investor notes (the “Investor Notes”) payable to the Company in four tranches of $250,000 upon request by the Company. Closing occurred on May 9, 2018. The Note carries an original issue discount of $300,000, and the initial principal balance of $2,225,000 also includes original issue discount of $200,000 and $25,000 to cover IRT’s transaction expenses. The Investor Notes have not been drawn as of June 30, 2018. The Company will use the proceeds for the continued development of its TXL and CRV431 compounds for the treatment of Hepatitis B Virus and general corporate purposes. The Note bears interest at the rate of 10% per annum and matures on November 8, 2019. Beginning on November 8, 2018, IRT has the right to redeem all or any portion of the Note up to the Maximum Monthly Redemption Amount which is $500,000. Payments of each redemption amount may be made in cash or shares of Company common stock at Company’s election (so long as the various conditions to paying stock set forth in the Note are satisfied) provided, however, that if the Company’s common stock is trading below $1.60 per share (as adjusted for the reverse stock split), the redemption(s) must be in cash. Common stock issued upon redemption will be issued at a price equal to 80% of the lowest trade price of the common stock for the 20 consecutive trading days prior to the date of redemption, subject to adjustments; provided, however, that in no event will the redemption price be less than $1.60. Because of this feature which allows the lender to redeem the entire outstanding balance at its option within twelve (12) months of initial issuance, the debt is classified as current. The Company also entered into a security agreement with IRT, pursuant to which IRT will receive a security interest in substantially all of the Company’s assets, except for intellectual property. The Company identified numerous embedded features to which bifurcation would be required. The Securities Purchase Agreement requires that the Company comply with certain non-financial covenants customary for financing of this nature which the Company complied with as of June 30, 2018. The Company is eligible to elect the fair value option under ASC 815 and bypass analysis of potential embedded derivatives and further analysis of bifurcation of any such and has elected such option. Therefore, the debt will be recorded at its fair value upon issuance and subsequently re-measured at each reporting period until maturity. Additionally, all issuance costs incurred in connection with a debt instrument that is measured at fair value pursuant to the election of the fair value option are expensed during the period the debt is acquired. The Company incurred $200,000 of debt issuance costs, which were expensed as incurred due to the election of the fair value option and were included in interest expense in the accompanying condensed consolidated statement of operation for the quarter ended June 30, 2018. The Note carries total debt discount of $225,000 (comprising of original issue discount of $200,000 and $25,000 payment to IRT for transaction expenses) which was not recorded due to the election of the fair value option.

5. Debt

On May 8, 2018, the Company entered into a securities purchase agreement (the “Securities Purchase Agreement”) with Iliad Research and Trading, L.P. (“IRT”), pursuant to which the Company issued to IRT a secured convertible promissory note (the “Note”) in the aggregate principal amount of $3,325,000 for an aggregate purchase price of $2,000,000 cash and $1,000,000 aggregate principal amount of investor notes (the “Investor Notes”) payable to the Company in four tranches of $250,000 upon request by the Company. Closing occurred on May 9, 2018. The Note carries an original issue discount of $300,000, and the initial principal balance of $2,225,000 also includes original issue discount of $200,000 and $25,000 to cover IRT’s transaction expenses. The Investor Notes have not been drawn as of June 30, 2018. The Company will use the proceeds for the continued development of its TXL and CRV431 compounds for the treatment of Hepatitis B Virus and general corporate purposes. The Note bears interest at the rate of 10% per annum and matures on November 8, 2019. Beginning on November 8, 2018, IRT has the right to redeem all or any portion of the Note up to the Maximum Monthly Redemption Amount which is $500,000. Payments of each redemption amount may be made in cash or shares of Company common stock at Company’s election (so long as the various conditions to paying stock set forth in the Note are satisfied) provided, however, that if the Company’s common stock is trading below $1.60 per share (as adjusted for the reverse stock split), the redemption(s) must be in cash. Common stock issued upon redemption will be issued at a price equal to 80% of the lowest trade price of the common stock for the 20 consecutive trading days prior to the date of redemption, subject to adjustments; provided, however, that in no event will the redemption price be less than $1.60. Because of this feature which allows the lender to redeem the entire outstanding balance at its option within twelve (12) months of initial issuance, the debt is classified as current. The Company also entered into a security agreement with IRT, pursuant to which IRT will receive a security interest in substantially all of the Company’s assets, except for intellectual property. The Company identified numerous embedded features to which bifurcation would be required. The Securities Purchase Agreement requires that the Company comply with certain non-financial covenants customary for financing of this nature which the Company complied with as of June 30, 2018.

The Company is eligible to elect the fair value option under ASC 815 and bypass analysis of potential embedded derivatives and further analysis of bifurcation of any such and has elected such option. Therefore, the debt will be recorded at its fair value upon issuance and subsequently re-measured at each reporting period until maturity. Additionally, all issuance costs incurred in connection with a debt instrument that is measured at fair value pursuant to the election of the fair value option are expensed during the period the debt is acquired.

The Company incurred $200,000 of debt issuance costs, which were expensed as incurred due to the election of the fair value option and were included in interest expense in the accompanying condensed consolidated statement of operation for the quarter ended June 30, 2018.

The Note carries total debt discount of $225,000 (comprising of original issue discount of $200,000 and $25,000 payment to IRT for transaction expenses) which was not recorded due to the election of the fair value option.