Related Party Transactions	6 Months Ended
Jun. 30, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Gary Pace Securities Purchase Agreement In May 2020, the Company entered into a Securities Purchase Agreement with Gary W. Pace, one of the Company's directors. Dr. Pace purchased 447,761 shares of the Company's common stock at $1.34 per share for an aggregate purchase price of $600,000. Leucadia Life Sciences In November 2018, the Company entered into a Material Transfer Agreement (“MTA”) with Leucadia Life Sciences (“Leucadia”) pursuant to which Leucadia developed a PCR-based assay for onvansertib for Acute Myeloid Leukemia (“AML”). This assay was completed in December 2020. During the duration of the agreement, one of the Company's directors Dr. Thomas Adams (who is no longer a director as of June 2021), was a principal stockholder of Leucadia. In connection with the MTA, the Company entered into a consulting agreement with Tommy Adams, Co-Founder & Chief Operating Officer of Leucadia, who is the son of Dr. Adams. During the three months ended June 30, 2021 and 2020 the Company incurred and recorded research and development expenses of approximately $0 and $0.3 million, respectively, for services performed by Leucadia and Tommy Adams. During the six months ended June 30, 2021 and 2020 the Company incurred and recorded research and development expenses of approximately $0 and $0.5 million, respectively, for services performed by Leucadia and Tommy Adams.

Related Party Transactions

6 Months Ended

Jun. 30, 2021

Gary Pace Securities Purchase Agreement

In May 2020, the Company entered into a Securities Purchase Agreement with Gary W. Pace, one of the Company's directors. Dr. Pace purchased 447,761 shares of the Company's common stock at $1.34 per share for an aggregate purchase price of $600,000.

Leucadia Life Sciences

In November 2018, the Company entered into a Material Transfer Agreement (“MTA”) with Leucadia Life Sciences (“Leucadia”) pursuant to which Leucadia developed a PCR-based assay for onvansertib for Acute Myeloid Leukemia (“AML”). This assay was completed in December 2020. During the duration of the agreement, one of the Company's directors Dr. Thomas Adams (who is no longer a director as of June 2021), was a principal stockholder of Leucadia. In connection with the MTA, the Company entered into a consulting agreement with Tommy Adams, Co-Founder & Chief Operating Officer of Leucadia, who is the son of Dr. Adams. During the three months ended June 30, 2021 and 2020 the Company incurred and recorded research and development expenses of approximately $0 and $0.3 million, respectively, for services performed by Leucadia and Tommy Adams. During the six months ended June 30, 2021 and 2020 the Company incurred and recorded research and development expenses of approximately $0 and $0.5 million, respectively, for services performed by Leucadia and Tommy Adams.