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Significant Contracts (Narrative) (Details) $ in Millions	Oct. 01, 2018 item	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Supply Commitment [Line Items]
Future milestone payments payable | $		$ 0.0	$ 0.0
Clinical Collaboration Agreement [Member] | The University of Texas MD Anderson Cancer Center [Member]
Supply Commitment [Line Items]
Term of agreement	3 years
Number of clinical studies conducted | item	4

X

- Definition

Represent the number of clinical studies conduct.

+ References

No definition available.

+ Details

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X

- Definition

The potential future milestone payments required to be made under certain contractual agreements.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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X

- Definition

It represents term of agreement.

+ References

No definition available.

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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