Convertible Notes Payable	9 Months Ended
Sep. 30, 2018
Debt Disclosure [Abstract]
Convertible Notes Payable	4. Convertible Notes Payable On March 23, 2017, the Company entered into an exclusive Definitive Financing Commitment Term Sheet with a group of the Company’s stockholders (the “PRH Group”), which was amended and restated effective as of March 19, 2017 (the “Term Sheet”) that set forth the terms on which the PRH Group would use their best efforts to arrange for a financing of a minimum of $10,000,000 and maximum of $20,000,000 (the “2017 Financing”). The 2017 Financing is in the form of secured convertible loans (the “Loans”) from the PRH Group or other investors in the 2017 Financing (the “Investors”). The Loans are evidenced by secured convertible promissory notes (individually a “PRH Note” and collectively, the “PRH Notes”) from the Company to the PRH Group or the investors. The principal amounts of the PRH Notes and the interest payable under the Loan would automatically convert into shares of the Company’s Series D Preferred Stock at a price per share equal to $0.2862 effective on the 18-month anniversary of the funding of the final tranche of the 2017 Financing subject to certain exceptions if the Company’s Board of Directors (the “Board”) designates such series of preferred stock in the future. As of September 30, 2018, and through the date of filing, the Series D Preferred Stock had not been designated by the Board and, accordingly, the PRH Notes are not convertible into shares of Series D Preferred Stock. As a result, the Company did not analyze the Loan for a potential beneficial conversion feature as the definition of a firm commitment has not been met since the PRH Notes were not convertible as of their respective dates of issuance or as of September 30, 2018. As of September 30, 2018, the Company had received aggregate Loans of $13,362,000 in connection with the 2017 Financing from both non-related and related parties. For further details on the terms of the PRH Notes, refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 as filed with the SEC on March 23, 2018. Convertible Notes Payable – Related Parties On February 21, 2017, the Company issued a promissory note in favor of Eric A. Wachter, Ph.D., the Company’s Chief Technology Officer (“Wachter”), evidencing an unsecured loan from Wachter to the Company in the original principal amount of up to $2,500,000 (the “Wachter Note”). Interest accrues on the outstanding balance of the Wachter Note at six percent (6%) per annum calculated on a 360-day basis. As of September 30, 2018, the Company had borrowed the entire $2,500,000 under this note. On April 3, 2017, the Company entered into a PRH Note with Cal Enterprises LLC, a Nevada limited liability company, an affiliate of Dominic Rodrigues, a director of the Company, in the principal amount of up to $2,500,000. As of September 30, 2018, the Company had borrowed the entire $2,500,000 under this note. During the nine months ended September 30, 2018, the Company amended the above notes to modify the maturity date from 24 months to 18 months in order to be consistent with the other outstanding PRH Notes. The actual maturity dates will be determined after the completion of the 2017 Financing. During the nine months ended September 30, 2018, the Company entered into additional PRH Notes with related parties in the aggregate principal amount of $1,350,000. As of September 30, 2018, the Company had drawn down the entire $1,350,000 under these notes. Convertible Notes Payable – Non-Related Parties During the nine months ended September 30, 2018, the Company entered into additional PRH Notes with accredited investors in the aggregate principal amount of $2,556,000. As of September 30, 2018, the Company had drawn down the entire $2,556,000 under these notes. Included in these notes is one PRH Note totaling $500,000 with terms of principal and interest due twenty-four (24) months from date of signing. This note will mature in June 2020.

Convertible Notes Payable

9 Months Ended

Sep. 30, 2018

4. Convertible Notes Payable

On March 23, 2017, the Company entered into an exclusive Definitive Financing Commitment Term Sheet with a group of the Company’s stockholders (the “PRH Group”), which was amended and restated effective as of March 19, 2017 (the “Term Sheet”) that set forth the terms on which the PRH Group would use their best efforts to arrange for a financing of a minimum of $10,000,000 and maximum of $20,000,000 (the “2017 Financing”).

The 2017 Financing is in the form of secured convertible loans (the “Loans”) from the PRH Group or other investors in the 2017 Financing (the “Investors”). The Loans are evidenced by secured convertible promissory notes (individually a “PRH Note” and collectively, the “PRH Notes”) from the Company to the PRH Group or the investors.

The principal amounts of the PRH Notes and the interest payable under the Loan would automatically convert into shares of the Company’s Series D Preferred Stock at a price per share equal to $0.2862 effective on the 18-month anniversary of the funding of the final tranche of the 2017 Financing subject to certain exceptions if the Company’s Board of Directors (the “Board”) designates such series of preferred stock in the future.

As of September 30, 2018, and through the date of filing, the Series D Preferred Stock had not been designated by the Board and, accordingly, the PRH Notes are not convertible into shares of Series D Preferred Stock. As a result, the Company did not analyze the Loan for a potential beneficial conversion feature as the definition of a firm commitment has not been met since the PRH Notes were not convertible as of their respective dates of issuance or as of September 30, 2018.

As of September 30, 2018, the Company had received aggregate Loans of $13,362,000 in connection with the 2017 Financing from both non-related and related parties. For further details on the terms of the PRH Notes, refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 as filed with the SEC on March 23, 2018.

Convertible Notes Payable – Related Parties

On February 21, 2017, the Company issued a promissory note in favor of Eric A. Wachter, Ph.D., the Company’s Chief Technology Officer (“Wachter”), evidencing an unsecured loan from Wachter to the Company in the original principal amount of up to $2,500,000 (the “Wachter Note”). Interest accrues on the outstanding balance of the Wachter Note at six percent (6%) per annum calculated on a 360-day basis. As of September 30, 2018, the Company had borrowed the entire $2,500,000 under this note.

On April 3, 2017, the Company entered into a PRH Note with Cal Enterprises LLC, a Nevada limited liability company, an affiliate of Dominic Rodrigues, a director of the Company, in the principal amount of up to $2,500,000. As of September 30, 2018, the Company had borrowed the entire $2,500,000 under this note.

During the nine months ended September 30, 2018, the Company amended the above notes to modify the maturity date from 24 months to 18 months in order to be consistent with the other outstanding PRH Notes. The actual maturity dates will be determined after the completion of the 2017 Financing.

During the nine months ended September 30, 2018, the Company entered into additional PRH Notes with related parties in the aggregate principal amount of $1,350,000. As of September 30, 2018, the Company had drawn down the entire $1,350,000 under these notes.

Convertible Notes Payable – Non-Related Parties

During the nine months ended September 30, 2018, the Company entered into additional PRH Notes with accredited investors in the aggregate principal amount of $2,556,000. As of September 30, 2018, the Company had drawn down the entire $2,556,000 under these notes. Included in these notes is one PRH Note totaling $500,000 with terms of principal and interest due twenty-four (24) months from date of signing. This note will mature in June 2020.