Commitments and Contingent Liabilities (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitment to extend credit	$ 149.6chfn_CommitmentToExtendCredit

-- None. No documentation exists for this element. --

No definition available.

Name:	chfn_CommitmentToExtendCredit
Namespace Prefix:	chfn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant