7. FINANCIAL INSTRUMENTS - Change in contingent consideration (Details) - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Changes in fair value of contingent consideration
Contingent consideration, beginning of period	$ 1,052	$ 2,738
Change due to accretion	38	33
Re-measurement of contingent consideration	(83)	(450)
Contingent consideration, end of period	$ 1,007	$ 2,321

Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's change due to accretion.

No definition available.

+ Details

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Namespace Prefix:	gsit_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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- Definition

Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

+ Details

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