XML 32 R26.htm IDEA: XBRL DOCUMENT v3.25.2

Leases (Tables)

6 Months Ended

Jun. 30, 2025

Leases [Abstract]

Summary of Operating Leases

The Company has the following operating leases:

Location		Primary Use		Lease Expiration Date		Renewal Option
Copenhagen, Denmark		Corporate headquarters		November 2029		None

Quantitative Information Regarding Leases

Quantitative information regarding the Company’s leases for the three and six months ended June 30, 2025 and 2024 was as follows:

		Three Months Ended June 30,								Six Months Ended June 30,
Lease Cost		2025				2024				2025				2024
Operating lease cost (in thousands)		$	5			$	47			$	10			$	143
Other Information
Operating cash flows paid for amounts included    in the measurement of lease liabilities (in thousands)		$	5			$	48			$	10			$	140
Operating lease liabilities arising from obtaining    right-of-use assets (in thousands)		$	—			$	—			$	—			$	—

Summary of Operating Lease Liabilities

Operating lease liabilities at June 30, 2025 are as follows (in thousands):

		Operating
Future Lease Payments		Leases
2025 (excluding the period ended June 30, 2025)		$	10
2026			20
2027			20
2028			20
2029			19
Total lease payments			89
Less: imputed interest			(14	)
Total lease liabilities		$	75

X

- Definition

Operating lease of lessee disclosure.

+ References

No definition available.

+ Details

Name:	glto_OperatingLeaseOfLesseeDisclosureTextBlock
Namespace Prefix:	glto_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

+ Details

Name:	us-gaap_LeaseCostTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration