Stockholders' Equity	9 Months Ended
Sep. 30, 2020
Stockholders Equity Note [Abstract]
Stockholders' Equity	Note 6. Stockholders’ Equity Common Stock The Company is currently authorized to issue 30,000,000 shares of common stock under its Certificate of Incorporation. As of September 30, 2020, the Company has issued 24,473,002 shares of common stock and has approximately 5,526,998 shares of common stock reserved for issuance, resulting in no authorized shares of common stock available for issuance. As a result, the Company will hold a special meeting of stockholders on November 10, 2020 to vote to increase the number of shares of common stock it is authorized to issue from 30,000,000 shares to 60,000,000 shares. Restricted Common Shares In March 2013, the founders of the Company purchased 2,783,686 shares of common stock for $0.0068 per share. Of the shares purchased, 1,538,353 were subject to a repurchase option whereby the Company has an option for two months after date of termination of service to repurchase any or all of the unvested shares at the original purchase price per share. The repurchase option will be deemed to be automatically exercised by the Company as of the end of the two-month period unless the Company notifies the purchaser that it does not intend to exercise its option. The shares will be vested (1) 25% after obtaining suitable siRNA license; (2) 25% after in vivo proof-of-concept is achieved; (3) 25% after a regulatory agency new drug application (such as an IND application) is filed and accepted by the applicable regulatory agency; and (4) 25% after human biological proof-of-concept is achieved. The Company met the first two milestones during 2013 and 2014 leaving an unvested balance of 769,176 shares. In 2017, the stock purchase agreements were amended to clarify vesting conditions and also to accelerate the vesting of 146,510 shares resulting in a modification expense of $1,495,000. The third and fourth milestones were achieved during the second and third quarters of 2020, respectively, and therefore, as of September 30, 2020, all shares of common stock were fully vested. Net Loss per Share Dilutive securities that were not included in the calculation of diluted net loss per share for the three and nine months ended September 30, 2020 as they were anti-dilutive totaled 1,405,378 and 1,129,949, respectively, and 166,921 and 96,615 for the three and nine months ended September 30, 2019, respectively.

Stockholders' Equity

9 Months Ended

Sep. 30, 2020

Note 6. Stockholders’ Equity

Common Stock

The Company is currently authorized to issue 30,000,000 shares of common stock under its Certificate of Incorporation. As of September 30, 2020, the Company has issued 24,473,002 shares of common stock and has approximately 5,526,998 shares of common stock reserved for issuance, resulting in no authorized shares of common stock available for issuance. As a result, the Company will hold a special meeting of stockholders on November 10, 2020 to vote to increase the number of shares of common stock it is authorized to issue from 30,000,000 shares to 60,000,000 shares.

Restricted Common Shares

In March 2013, the founders of the Company purchased 2,783,686 shares of common stock for $0.0068 per share. Of the shares purchased, 1,538,353 were subject to a repurchase option whereby the Company has an option for two months after date of termination of service to repurchase any or all of the unvested shares at the original purchase price per share. The repurchase option will be deemed to be automatically exercised by the Company as of the end of the two-month period unless the Company notifies the purchaser that it does not intend to exercise its option. The shares will be vested (1) 25% after obtaining suitable siRNA license; (2) 25% after in vivo proof-of-concept is achieved; (3) 25% after a regulatory agency new drug application (such as an IND application) is filed and accepted by the applicable regulatory agency; and (4) 25% after human biological proof-of-concept is achieved. The Company met the first two milestones during 2013 and 2014 leaving an unvested balance of 769,176 shares. In 2017, the stock purchase agreements were amended to clarify vesting conditions and also to accelerate the vesting of 146,510 shares resulting in a modification expense of $1,495,000. The third and fourth milestones were achieved during the second and third quarters of 2020, respectively, and therefore, as of September 30, 2020, all shares of common stock were fully vested.

Net Loss per Share

Dilutive securities that were not included in the calculation of diluted net loss per share for the three and nine months ended September 30, 2020 as they were anti-dilutive totaled 1,405,378 and 1,129,949, respectively, and 166,921 and 96,615 for the three and nine months ended September 30, 2019, respectively.