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Commitments and Contingencies - Additional Information (Details) - USD ($)				1 Months Ended		3 Months Ended		6 Months Ended
	May 13, 2021	May 01, 2021	Dec. 02, 2020	Sep. 30, 2020	Aug. 31, 2019	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Oct. 31, 2016
Loss Contingencies [Line Items]
Research and development						$ 2,910,000	$ 3,361,000	$ 6,161,000	$ 6,567,000
Revenue Share Agreement | Oncimmune Limited
Loss Contingencies [Line Items]
Royalty expense						200,000	200,000	$ 400,000	400,000
Percentage of revenue share payment related to acquired diagnostic test recognized revenue for non-screening tests								8.00%
Minimum annual volume percentage thereafter								5.00%
Period of escalations of sales								through the first four years of sales
Bio-Rad License
Loss Contingencies [Line Items]
Percentage of royalty payments on net revenue					2.50%
Percentage of royalty payments not required on net revenue		2.50%
License expiry date					2024-08
Royalty expense						0	0	$ 0	0
CellCarta License
Loss Contingencies [Line Items]
Percentage of royalty payments on net revenue	0.675%
Percentage of fee payments on net sales	1.00%
Term of royalty payments from first commercial sale	15 years
Year of ending royalty payments from first commercial sale	2034
Royalty expense						100,000	0	100,000	0
AVEO Oncology
Loss Contingencies [Line Items]
Remaining estimated obligation								100,000
Research and development								$ 0	$ 0
Royalty expense						$ 0	$ 0
AVEO Oncology | Ficlatuzumab
Loss Contingencies [Line Items]
Percentage of development and regulatory costs exercised using opt-out right				50.00%
Percentage of royalty payments on net sales			10.00%
Percentage of license income generated from licensing			25.00%
AVEO Oncology | NSCLC POC Trial
Loss Contingencies [Line Items]
Responsible percentage of development and regulatory costs										50.00%

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