CONTINGENCIES (Details)	Mar. 31, 2026 claim
Commitments and Contingencies Disclosure [Abstract]
Number of legal proceedings that might have a material effect on the results of operations	0

Number of legal proceedings that have material effect.

No definition available.

Name:	orrf_NumberOfLegalProceedingsThatHaveMaterialEffect
Namespace Prefix:	orrf_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant