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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Sep. 30, 2025	Sep. 30, 2025
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Offering costs	$ 162	$ 573

X

- Definition

Amount of stock issuance or offering costs.

+ References

No definition available.

+ Details

Name:	gsit_OfferingCosts
Namespace Prefix:	gsit_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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