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Financial Instruments (Details) - Schedule of change in LIBOR interest rates - LIBOR Interest Rate [Member] - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Financial Instruments (Details) - Schedule of change in LIBOR interest rates [Line Items] |  |
5% Increase in the Interest Rate | $ (4) | $ (60)
5% Decrease in the Interest Rate | $ 4 | $ 60

X
- Definition Decrease in the exchange rate of the amount. + References No definition available. + Details
Name: | onds_DecreseExchangeRateOfTheamount
Namespace Prefix: | onds_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | onds_FinancialInstrumentsDetailsScheduleofchangeinLIBORinterestratesLineItems
Namespace Prefix: | onds_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase in the Exchange Rate amount. + References No definition available. + Details
Name: | onds_IncreaseExchangeRateamount
Namespace Prefix: | onds_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=onds_LIBORInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |