v3.25.1

Subsequent Events (Details) - Subsequent Event - Paratek $ / shares in Units, $ in Millions	Mar. 19, 2025 USD ($) cvr $ / shares
Subsequent Event [Line Items]
Business combination, per share cash consideration (usd per share)	$ 9.00
Business combination, contingent value right per share (cvr) \| cvr	1
Contingent Event One
Subsequent Event [Line Items]
Business combination, cvr value (usd per share)	$ 1.00
Business combination, cvr milestone \| $	$ 150
Contingent Event Two
Subsequent Event [Line Items]
Business combination, cvr value (usd per share)	$ 4.00
Business combination, cvr milestone \| $	$ 225

Business Combination, Consideration Transferred, Contingent Value Right Milestone

+ References

No definition available.

+ Details

Name:	optn_BusinessCombinationConsiderationTransferredContingentValueRightMilestone
Namespace Prefix:	optn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Business Combination, Consideration Transferred, Contingent Value Right Per Share

+ References

No definition available.

+ Details

Name:	optn_BusinessCombinationConsiderationTransferredContingentValueRightPerShare
Namespace Prefix:	optn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Business Combination, Consideration Transferred, Contingent Value Right, Value

+ References

No definition available.

+ Details

Name:	optn_BusinessCombinationConsiderationTransferredContingentValueRightValue
Namespace Prefix:	optn_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Business Combination, Consideration Transferred, Per Share Cash Considration

+ References

No definition available.

+ Details

Name:	optn_BusinessCombinationConsiderationTransferredPerShareCashConsidration
Namespace Prefix:	optn_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

+ Details

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

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=optn_ParatekMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	optn_ContingentEventAxis=optn_ContingentEventOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	optn_ContingentEventAxis=optn_ContingentEventTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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