Amount of agreement amount.

No definition available.

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Balance Type:	debit
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- Definition

Overpayments of long term lines of credit.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The Amount of renovation consideration.

+ References

No definition available.

+ Details

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Namespace Prefix:	omh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Working capital.

+ References

No definition available.

+ Details

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

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

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

- Definition

Amounts receivable from issuing a card to individuals or businesses that allows someone to make a purchase on borrowed money.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
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-Subparagraph (SX 210.5-02(3)(a)(4))
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-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

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

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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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-Paragraph 25
-Subparagraph (g)
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cash payments for and related to principal collection on loans related to operating activities.

+ References

+ Details

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

- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
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Balance Type:	debit
Period Type:	duration

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
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Balance Type:	na
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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
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Balance Type:	credit
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- Definition

The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Section 45
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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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Related Party Balances and Transactions (Details)							12 Months Ended
Related Party Balances and Transactions (Details)	Dec. 28, 2023 SGD ($)	Nov. 30, 2023 SGD ($)	Sep. 12, 2023 SGD ($)	Mar. 10, 2023 SGD ($)	Feb. 25, 2022 SGD ($)	Feb. 25, 2022 USD ($)	Dec. 31, 2025 SGD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 SGD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 SGD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 SGD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2025 USD ($)
Related Party Balances and Transactions [Line Items]
Working capital									$ 152,264
Renovation of total consideration					$ 3,492,997	$ 2,612,033							$ 3,085,865	$ 2,302,197
Agreement amounted													103,908	77,520
Revenue recognized									103,655		$ 194,300		2,981,957	2,224,676
Revolving Credit Facility [Member]
Related Party Balances and Transactions [Line Items]
Credit card settlements (in Dollars)							291,392
Overpayment (in Dollars)							11,575
Ms. Wong Wan Pei [Member]
Related Party Balances and Transactions [Line Items]
General working capital (in Dollars)	$ 240,000
Ms. Rhonda Wong [Member]
Related Party Balances and Transactions [Line Items]
Working capital								$ 256,050		$ 27,674
Shareholder loans															$ 1,203,207
Payment of loan								218,183
Service fee									250	183	288	$ 218	1,199	$ 896
Rental commission									2,100	1,537			$ 2,900
Ms. Rhonda Wong [Member] \| Revolving Credit Facility [Member]
Related Party Balances and Transactions [Line Items]
Advertisement packages (in Dollars)			$ 110,000	$ 169,817
Ms. Race Wong [Member]
Related Party Balances and Transactions [Line Items]
Working capital								253,045		27,674
Shareholder loans															$ 522,408
Payment of loan								66,667
Service fee									$ 4,770	$ 3,491
Mr. David Loh [Member]
Related Party Balances and Transactions [Line Items]
Service fee							$ 11,000	$ 8,338
Revenue recognized											$ 511,040	$ 387,357
Ms. Wong Wan Pei [Member] \| Revolving Credit Facility [Member]
Related Party Balances and Transactions [Line Items]
General working capital (in Dollars)		$ 200,000