XML 37 R30.htm IDEA: XBRL DOCUMENT v3.24.3

Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2024

Stockholders' Equity Note [Abstract]

Schedule of Common Stock Reserved for Future Issuance

The Company has reserved common stock, on an if-converted basis, for issuance as follows:

		September 30,				December 31,
		2024				2023
Common stock options issued and outstanding			8,904,562				7,905,032
Common stock awards issued and outstanding			6,022,734				5,244,873
Remaining shares reserved for issuance under 2018 Equity    Incentive Plan and 2021 Equity Inducement Plan			1,495,378				1,777,919
Shares reserved for issuance under 2018 Employee    Stock Purchase Plan			1,213,418				914,911
Warrants to purchase common stock			127,616				127,616
Total			17,763,708				15,970,351

X

- Definition

Schedule of common stock reserved for future issuance.

+ References

No definition available.

+ Details

Name:	stro_ScheduleOfCommonStockReservedForFutureIssuanceTableTextBlock
Namespace Prefix:	stro_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_StockholdersEquityNoteAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration