Subsequent Events	3 Months Ended
Mar. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	18. Subsequent Events On May 5, 2020, the Company issued secured subordinated promissory notes in an aggregate principal amount of $4.0 million (the “Notes”) to 21 April Fund, LP and 21 April Fund, Ltd. (collectively referred to as the “April 21 Funds”) pursuant to a Note and Warrant Purchase Agreement entered into with the April 21 Funds (the “Note Purchase Agreement”). The Notes are secured by the Company’s assets, but subordinate to the Company’s obligations to EWB under its Loan and Security Agreement. Proceeds from the sale of the Notes must be used for expenses incurred by the Company in connection with its provisions of goods and services under a statement of work with a third party. The Notes have an initial term of nine months and do not bear interest during this period. However, if the Notes are not repaid on or before the nine-month anniversary of issuance, (a) the Notes will thereafter bear interest of 8% per annum, payable quarterly, and (b) additional warrants to purchase common stock would be issuable to the April 21 Funds for each month all or a portion of the Notes remain unpaid, as further detailed in the Note Purchase Agreement. In the event the Notes are not paid in full by the first anniversary of their issuance, May 5, 2021, they shall thereafter bear interest of 12% per annum, payable quarterly, and additional Extension Warrants would be issuable to the April 21 Funds. On May 5, 2020, the Company entered into a Note and Warrant Purchase Agreement with 21 April Fund, LP and 21 April Fund, Ltd. (collectively referred to as the “April 21 Funds”), as discussed in Note 9, Financial Liabilities, in which the Company issued warrants (“April 21 Funds Warrants”) to purchase 275,000 shares of common stock of the Company. The April 21 Funds Warrants have a term of three years (subject to early termination upon the closing of an acquisition); provided, that in the event that the Note is not paid in full by the nine-month anniversary of issuance, the term of the April 21 Funds Warrants shall be extended for a period of time equal to the period of time from such nine-month anniversary until the date the Note is fully paid. The Extension Warrants have a term of three years from the date of issuance of the latest Extension Warrant to be issued (subject to early termination upon an acquisition). The shares of common stock issuable upon exercise of the warrants and any Extension Warrants that may be issued are entitled to the same resale registration rights granted to the April 21 Funds Warrants under the Stockholders Agreement dated December 21, 2017 in connection with the April 21 Funds Warrants’ previous purchase of certain securities of the Company. On April 9, 2020, the Company entered into a promissory note (the “Note”) under the Paycheck Protection Program established under Section 1102 of the CARES Act. The Note is dated April 8, 2020 with EWB. The Company borrowed a principal amount of approximately $2.9 million. The interest on the Note is 1.00% per annum. The Note is payable two years from the date of the Note, and there is no prepayment penalty. Notes issued under the CARES Act may be eligible for forgiveness in whole or in part in accordance with Small Business Administration rules established for the Paycheck Protection Program. Additional subsequent events are disclosed within Notes 8 and 9, and 11.

Subsequent Events

3 Months Ended

Mar. 31, 2020

18. Subsequent Events

On May 5, 2020, the Company issued secured subordinated promissory notes in an aggregate principal amount of $4.0 million (the “Notes”) to 21 April Fund, LP and 21 April Fund, Ltd. (collectively referred to as the “April 21 Funds”) pursuant to a Note and Warrant Purchase Agreement entered into with the April 21 Funds (the “Note Purchase Agreement”). The Notes are secured by the Company’s assets, but subordinate to the Company’s obligations to EWB under its Loan and Security Agreement. Proceeds from the sale of the Notes must be used for expenses incurred by the Company in connection with its provisions of goods and services under a statement of work with a third party. The Notes have an initial term of nine months and do not bear interest during this period. However, if the Notes are not repaid on or before the nine-month anniversary of issuance, (a) the Notes will thereafter bear interest of 8% per annum, payable quarterly, and (b) additional warrants to purchase common stock would be issuable to the April 21 Funds for each month all or a portion of the Notes remain unpaid, as further detailed in the Note Purchase Agreement. In the event the Notes are not paid in full by the first anniversary of their issuance, May 5, 2021, they shall thereafter bear interest of 12% per annum, payable quarterly, and additional Extension Warrants would be issuable to the April 21 Funds.

On May 5, 2020, the Company entered into a Note and Warrant Purchase Agreement with 21 April Fund, LP and 21 April Fund, Ltd. (collectively referred to as the “April 21 Funds”), as discussed in Note 9, Financial Liabilities, in which the Company issued warrants (“April 21 Funds Warrants”) to purchase 275,000 shares of common stock of the Company. The April 21 Funds Warrants have a term of three years (subject to early termination upon the closing of an acquisition); provided, that in the event that the Note is not paid in full by the nine-month anniversary of issuance, the term of the April 21 Funds Warrants shall be extended for a period of time equal to the period of time from such nine-month anniversary until the date the Note is fully paid. The Extension Warrants have a term of three years from the date of issuance of the latest Extension Warrant to be issued (subject to early termination upon an acquisition). The shares of common stock issuable upon exercise of the warrants and any Extension Warrants that may be issued are entitled to the same resale registration rights granted to the April 21 Funds Warrants under the Stockholders Agreement dated December 21, 2017 in connection with the April 21 Funds Warrants’ previous purchase of certain securities of the Company.

On April 9, 2020, the Company entered into a promissory note (the “Note”) under the Paycheck Protection Program established under Section 1102 of the CARES Act. The Note is dated April 8, 2020 with EWB. The Company borrowed a principal amount of approximately $2.9 million. The interest on the Note is 1.00% per annum. The Note is payable two years from the date of the Note, and there is no prepayment penalty. Notes issued under the CARES Act may be eligible for forgiveness in whole or in part in accordance with Small Business Administration rules established for the Paycheck Protection Program.

Additional subsequent events are disclosed within Notes 8 and 9, and 11.