v3.25.2

Commitments and Contingencies (Details) - USD ($)		1 Months Ended		6 Months Ended		12 Months Ended
Commitments and Contingencies (Details) - USD ($)	Aug. 31, 2020	May 31, 2021	Jun. 30, 2020	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Commitments and Contingencies [Line Items]
Payment term of license agreement per month				$ 787.5			$ 1,000
Rent expense				$ 5,513	$ 1,750		$ 12,000
Deposit					400,000
Net sales percentage				6.00%
Royalties reduction		10.00%		3.00%
Royalties
Milestone payment				22,375,000
Total budget			$ 2,436,928
Paid amount				0	$ 86,687
Balance due amount				0
Other fees				266,317
Estimated to exceed amount				$ 2,200,000
Agreed to pay a royalty				1.50%
Blink Bio [Member]
Commitments and Contingencies [Line Items]
License fee	$ 300,000
Consulting Fee [Member]
Commitments and Contingencies [Line Items]
Other fees				$ 4,594,858
Accounts payable				$ 1,118,343

It represents the amount of budget under agreement.

+ References

No definition available.

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

- Definition

The amount of estimated contractual amount.

+ References

No definition available.

+ Details

Name:	osti_EstimatedContractualAmount
Namespace Prefix:	osti_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represent the amount of milestone payments.

+ References

No definition available.

+ Details

Name:	osti_MilestonePayments
Namespace Prefix:	osti_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represent the amount of outstanding balance fees.

+ References

No definition available.

+ Details

Name:	osti_OutstandingBalanceFees
Namespace Prefix:	osti_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

It represents the amount of payment term of license agreement per month.

+ References

No definition available.

+ Details

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

- Definition

Percentage of royalty payments.

+ References

No definition available.

+ Details

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Namespace Prefix:	osti_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of rent expense.

+ References

No definition available.

+ Details

Name:	osti_RentExpense
Namespace Prefix:	osti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Royalty net sales percentage of products.

+ References

No definition available.

+ Details

Name:	osti_RoyaltyNetSalesPecentage
Namespace Prefix:	osti_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of royalty reduction.

+ References

No definition available.

+ Details

Name:	osti_RoyaltyReductionPercentage
Namespace Prefix:	osti_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of obligations incurred classified as other, payable within one year or the normal operating cycle, if longer.

+ References

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

Amount of expense classified as other.

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-Topic 944
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash outflow for fees classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of cash paid for royalties during the current period.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cash received from licensees for license fees during the current period.

+ References

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Period Type:	duration

- Details

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- Details

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