Recent Accounting Pronouncements (Details)	9 Months Ended
Sep. 30, 2012
Recent Accounting Pronouncements [Abstract]
Percentage more likely than not, minimum (in hundredths)	50.00%

Minimum percentage to considered as more likely than not.

No definition available.

Name:	czfs_PercentageMoreLikelyThanNotMinimum
Namespace Prefix:	czfs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration