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SHAREHOLDERS’ EQUITY AND REGULATORY CAPITAL - Additional Information (Detail) | Jan. 19, 2016 USD ($)
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Equity [Abstract] |
Aggregate capital, amount | $ 100,000,000

X
- Definition Authorized Share Capital + References No definition available. + Details
Name: | orrf_AuthorizedShareCapital
Namespace Prefix: | orrf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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