XML 39 R29.htm IDEA: XBRL DOCUMENT v3.5.0.2

General (Details)	Sep. 30, 2016 Branch
General [Abstract]
Number of branch offices	18

X

- References

No definition available.

+ Details

Name:	opof_GeneralAbstract
Namespace Prefix:	opof_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of branch offices operated by the entity.

+ References

No definition available.

+ Details

Name:	opof_NumberOfBranchOffices
Namespace Prefix:	opof_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant