Common Stock	12 Months Ended
Dec. 31, 2017
Common Stock
Common Stock	9. Common Stock There were no shares of common stock issued or outstanding as of December 31, 2016. Each share of common stock entitles the holder to one vote on all matters submitted to a vote of the Company's stockholders. Common stockholders are entitled to receive dividends, as may be declared by the board of directors, if any, subject to the preferential dividend rights of the preferred stockholders. Through December 31, 2017, no dividends have been declared. As of December 31, 2017, the Company had reserved shares of common stock for the exercise of outstanding stock options and warrants, and the number of shares remaining for grant under the Company's 2012 Equity Incentive Plan (see Note 10). Merger with Macrocure Ltd. On January 20, 2017, in connection with and prior to the completion of the merger with Macrocure, (a) all of the Company's outstanding shares of convertible preferred stock were converted into 3,174,523 shares of common stock, (b) the outstanding note payable and accrued interest was converted into 1,950,768 shares of common stock, and (c) the Company amended and restated its certificate of incorporation and bylaws to, among other things: (i) authorize 100,000,000 shares of common stock; (ii) eliminate all references to the previously existing series of the Company's preferred stock; (iii) authorize 10,000,000 shares of undesignated preferred stock that may be issued from time to time by the Company's board of directors and (iv) effect a one for 19.86754 reverse stock split of the Company's common stock outstanding immediately prior to the filing of the amended and restated certificate of incorporation. Private Placement of Common Stock On November 14, 2017, the Company entered into purchase agreements (collectively, the "Purchase Agreements") with certain accredited institutional investors (collectively, the "Purchasers"), each with substantially similar terms and conditions. Pursuant to the Purchase Agreements, the Company agreed to issue and sell to the Purchasers an aggregate of 2,958,094 shares of unregistered common stock at a price per share of $6.085, for gross proceeds of $18,000 (the "Private Placement"). Each common share was issued with a detachable warrant to purchase one share of common stock at an exercise price of $6.085 per share, expiring seven years after the closing of the Purchase Agreements. The common shares issued in the Private Placement have the same rights and privileges as all other issued and outstanding common shares. The gross proceeds of $18,000 were first allocated to the fair value of the warrants of $12,335 with the remaining proceeds of $5,665 being allocated to the common stock. After giving effect to issuance costs related to the Private Placement, net proceeds were $17,250. If all of the Warrants are exercised in cash at the stated exercise price during the term, the Company will receive additional proceeds of approximately $18,000 and will issue an aggregate of 2,958,094 shares of common stock (the "Warrant Shares"). The Company incurred $750 of issuance costs associated with the Private Placement which consisted of legal, consulting and regulatory fees. The costs were allocated between the issuance of the common stock and warrants on a pro rata basis with the allocation of the proceeds, with approximately 68% of the costs allocated to the warrants and approximately 32% allocated to the common stock. The issuance costs associated with the common stock totaled $236 and were recorded as a reduction to additional paid-in capital on the consolidated balance sheet. The issuance costs associated with the warrants totaled $514 and were recorded within other expense on the consolidated statement of operations. HealthCare Ventures IX, L.P. and Eli Lilly and Company, each a holder of more than 5% of the Company's outstanding common stock, also purchased common stock and warrants in the Private Placement. Each of HealthCare Ventures IX, L.P. and Eli Lilly and Company agreed to purchase the common stock and warrants on the same terms and conditions as the other Purchasers in the Private Placement. Three of the Company's directors and executive officers are affiliated with HealthCare Ventures IX, L.P. and its affiliates. Pursuant to the terms of the Purchase Agreements, the Company was obligated to prepare and file with the SEC a registration statement on Form S-3 (the "Registration Statement") to register for resale the shares and the Warrant Shares on or prior to the date 30 days following the closing of the Private Placement, and use its best commercially reasonable efforts, subject to receipt of necessary information from the Purchasers, to cause the SEC to declare the Registration Statement effective within 60 days following the closing of the Private Placement or, if the Registration Statement is selected for review by the SEC, within 90 days following the closing of the Private Placement. In order to comply with such obligation, the Company initially filed a registration statement for the resale of up to 3,734,914 shares of the shares and Warrant Shares issued in the Private Placement on December 8, 2017. Two of the Purchasers opted not to register their shares or Warrant Shares and therefore, such shares and Warrant Shares were excluded from the Registration Statement. The SEC declared this Registration Statement, as amended, effective on December 15, 2017.

9. Common Stock

There were no shares of common stock issued or outstanding as of December 31, 2016.

Each share of common stock entitles the holder to one vote on all matters submitted to a vote of the Company's stockholders. Common stockholders are entitled to receive dividends, as may be declared by the board of directors, if any, subject to the preferential dividend rights of the preferred stockholders. Through December 31, 2017, no dividends have been declared.

As of December 31, 2017, the Company had reserved shares of common stock for the exercise of outstanding stock options and warrants, and the number of shares remaining for grant under the Company's 2012 Equity Incentive Plan (see Note 10).

Merger with Macrocure Ltd.

On January 20, 2017, in connection with and prior to the completion of the merger with Macrocure, (a) all of the Company's outstanding shares of convertible preferred stock were converted into 3,174,523 shares of common stock, (b) the outstanding note payable and accrued interest was converted into 1,950,768 shares of common stock, and (c) the Company amended and restated its certificate of incorporation and bylaws to, among other things: (i) authorize 100,000,000 shares of common stock; (ii) eliminate all references to the previously existing series of the Company's preferred stock; (iii) authorize 10,000,000 shares of undesignated preferred stock that may be issued from time to time by the Company's board of directors and (iv) effect a one for 19.86754 reverse stock split of the Company's common stock outstanding immediately prior to the filing of the amended and restated certificate of incorporation.

Private Placement of Common Stock

On November 14, 2017, the Company entered into purchase agreements (collectively, the "Purchase Agreements") with certain accredited institutional investors (collectively, the "Purchasers"), each with substantially similar terms and conditions. Pursuant to the Purchase Agreements, the Company agreed to issue and sell to the Purchasers an aggregate of 2,958,094 shares of unregistered common stock at a price per share of $6.085, for gross proceeds of $18,000 (the "Private Placement"). Each common share was issued with a detachable warrant to purchase one share of common stock at an exercise price of $6.085 per share, expiring seven years after the closing of the Purchase Agreements. The common shares issued in the Private Placement have the same rights and privileges as all other issued and outstanding common shares.

The gross proceeds of $18,000 were first allocated to the fair value of the warrants of $12,335 with the remaining proceeds of $5,665 being allocated to the common stock. After giving effect to issuance costs related to the Private Placement, net proceeds were $17,250. If all of the Warrants are exercised in cash at the stated exercise price during the term, the Company will receive additional proceeds of approximately $18,000 and will issue an aggregate of 2,958,094 shares of common stock (the "Warrant Shares").

The Company incurred $750 of issuance costs associated with the Private Placement which consisted of legal, consulting and regulatory fees. The costs were allocated between the issuance of the common stock and warrants on a pro rata basis with the allocation of the proceeds, with approximately 68% of the costs allocated to the warrants and approximately 32% allocated to the common stock. The issuance costs associated with the common stock totaled $236 and were recorded as a reduction to additional paid-in capital on the consolidated balance sheet. The issuance costs associated with the warrants totaled $514 and were recorded within other expense on the consolidated statement of operations.

HealthCare Ventures IX, L.P. and Eli Lilly and Company, each a holder of more than 5% of the Company's outstanding common stock, also purchased common stock and warrants in the Private Placement. Each of HealthCare Ventures IX, L.P. and Eli Lilly and Company agreed to purchase the common stock and warrants on the same terms and conditions as the other Purchasers in the Private Placement. Three of the Company's directors and executive officers are affiliated with HealthCare Ventures IX, L.P. and its affiliates.

Pursuant to the terms of the Purchase Agreements, the Company was obligated to prepare and file with the SEC a registration statement on Form S-3 (the "Registration Statement") to register for resale the shares and the Warrant Shares on or prior to the date 30 days following the closing of the Private Placement, and use its best commercially reasonable efforts, subject to receipt of necessary information from the Purchasers, to cause the SEC to declare the Registration Statement effective within 60 days following the closing of the Private Placement or, if the Registration Statement is selected for review by the SEC, within 90 days following the closing of the Private Placement. In order to comply with such obligation, the Company initially filed a registration statement for the resale of up to 3,734,914 shares of the shares and Warrant Shares issued in the Private Placement on December 8, 2017. Two of the Purchasers opted not to register their shares or Warrant Shares and therefore, such shares and Warrant Shares were excluded from the Registration Statement. The SEC declared this Registration Statement, as amended, effective on December 15, 2017.