XML 53 R44.htm IDEA: XBRL DOCUMENT
v3.24.3

Schedule of currency exchange rates (Details) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 $ / shares | Jun. 30, 2024 $ / shares | Jun. 30, 2024 RM / shares | Jun. 30, 2023 $ / shares | Jun. 30, 2023 $ / shares | Jun. 30, 2023 RM / shares | Dec. 31, 2023 $ / shares | Dec. 31, 2023 $ / shares | Dec. 31, 2023 RM / shares
Accounting Policies [Abstract] |  |  |  |  |  |  |  |  |
Year-end spot rate | (per share) | $ 0.7379 | $ 1.00 | RM 3.4746 | $ 0.7395 | $ 1.00 | RM 3.4518 | $ 0.7580 | $ 1.00 | RM 3.4819
Average rate | (per share) | $ 0.7431 | $ 1.00 | RM 3.5035 | $ 0.7484 | $ 1.00 | RM 3.3382 | $ 0.7447 | $ 1.00 | RM 3.3932

X
- Definition Currency exchange average rate per share. + References No definition available. + Details
Name: | OMH_CurrencyExchangeAverageRatePerShare
Namespace Prefix: | OMH_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Currency exchange spot rate per share. + References No definition available. + Details
Name: | OMH_CurrencyExchangeSpotRatePerShare
Namespace Prefix: | OMH_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration