Subsequent Events	12 Months Ended
Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	13.Subsequent Events Term Loan Amendment On March 29, 2020 the Company entered into the Ninth Amendment of the Loan and Security Agreement, pursuant to which, among other things, Oxford agreed to defer the start date of principal repayment from May 1, 2020 to May 1, 2021. In addition, the Company made a $5.0 million paydown of principal upon execution of the Ninth Amendment. As a result of this Ninth Amendment, the term of the Term Loan has been extended from June 1, 2021 to June 1, 2024, with all other major terms remaining consistent. License Agreement On March 29, 2020 the Company entered into an exclusive license agreement with NanoTx, Corp (“NanoTx”) for global development and commercialization of its glioblastoma treatment. Once certain post transaction requirements are met, the Company will make an initial license fee payment of $400,000 in cash and $300,000 in the Company’s common stock, based on a mutually agreed upon price consisting of the Company’s weighted average closing stock prices prior to the issuance of such shares of common stock. This license agreement commits the Company to certain milestone payments to NanoTx for successful completion of various milestones, together with royalty and sales payments based on the successful commercialization of the treatment. Impact of Coronavirus Outbreak On January 30, 2020, the World Health Organization (“WHO”) announced a global health emergency because of a new strain of coronavirus originating in Wuhan, China (the “COVID-19 outbreak”) and the risks to the international community as the virus spreads globally beyond its point of origin. In March 2020, the WHO classified the COVID-19 outbreak as a pandemic, based on the rapid increase in exposure globally. The full impact of the COVID-19 outbreak continues to evolve as of the date of this report. As such, it is uncertain as to the full magnitude that the pandemic will have on the Company’s financial condition, liquidity, and future results of operations. Management is actively monitoring the impact of the global situation on its financial condition, liquidity, operations, suppliers, industry, and workforce. Given the daily evolution of the COVID-19 outbreak and the global responses to curb its spread, the Company is not able to estimate the effects of the COVID-19 outbreak on its results of operations, financial condition, or liquidity for fiscal year 2020.

Subsequent Events

12 Months Ended

Dec. 31, 2019

13.Subsequent Events

Term Loan Amendment

On March 29, 2020 the Company entered into the Ninth Amendment of the Loan and Security Agreement, pursuant to which, among other things, Oxford agreed to defer the start date of principal repayment from May 1, 2020 to May 1, 2021. In addition, the Company made a $5.0 million paydown of principal upon execution of the Ninth Amendment. As a result of this Ninth Amendment, the term of the Term Loan has been extended from June 1, 2021 to June 1, 2024, with all other major terms remaining consistent.

License Agreement

On March 29, 2020 the Company entered into an exclusive license agreement with NanoTx, Corp (“NanoTx”) for global development and commercialization of its glioblastoma treatment. Once certain post transaction requirements are met, the Company will make an initial license fee payment of $400,000 in cash and $300,000 in the Company’s common stock, based on a mutually agreed upon price consisting of the Company’s weighted average closing stock prices prior to the issuance of such shares of common stock. This license agreement commits the Company to certain milestone payments to NanoTx for successful completion of various milestones, together with royalty and sales payments based on the successful commercialization of the treatment.

Impact of Coronavirus Outbreak

On January 30, 2020, the World Health Organization (“WHO”) announced a global health emergency because of a new strain of coronavirus originating in Wuhan, China (the “COVID-19 outbreak”) and the risks to the international community as the virus spreads globally beyond its point of origin. In March 2020, the WHO classified the COVID-19 outbreak as a pandemic, based on the rapid increase in exposure globally.

The full impact of the COVID-19 outbreak continues to evolve as of the date of this report. As such, it is uncertain as to the full magnitude that the pandemic will have on the Company’s financial condition, liquidity, and future results of operations. Management is actively monitoring the impact of the global situation on its financial condition, liquidity, operations, suppliers, industry, and workforce. Given the daily evolution of the COVID-19 outbreak and the global responses to curb its spread, the Company is not able to estimate the effects of the COVID-19 outbreak on its results of operations, financial condition, or liquidity for fiscal year 2020.