XML 58 R43.htm IDEA: XBRL DOCUMENT
v3.8.0.1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Loans (Details) | 12 Months Ended
--- | ---
Dec. 31, 2017
Accounting Policies [Abstract] |
Maturity of interest bearing deposits | 90 days
Evaluation period to return non accrual TDRs to accrual status | 6 months

X
- Definition Evaluation Period To Return Past Due Loans To Accrual Status + References No definition available. + Details
Name: | orrf_EvaluationPeriodToReturnPastDueLoansToAccrualStatus
Namespace Prefix: | orrf_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maturity of interest bearing deposits. + References No definition available. + Details
Name: | orrf_MaturityOfInterestBearingDeposits
Namespace Prefix: | orrf_
Data Type: | xbrli:durationItemType
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