XML 51 R41.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Federal Home Loan Bank Stock (Details) - USD ($) | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Federal Home Loan Bank Stock [Abstract] |  |
Federal home loan bank stock | $ 4,120,200 | $ 4,542,000
FHLB Stock, at par value (in dollars per share) | $ 100 |

X
- Definition This elements represents face amount of Federal Home Loan Bank Stock per share, generally not indicative of the fair market value per share. + References No definition available. + Details
Name: | czfs_FederalHomeLoanBankStockParValue
Namespace Prefix: | czfs_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 325 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=75031641&loc=d3e63345-112809 + Details
Name: | us-gaap_FederalHomeLoanBankStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsAllOtherInvestmentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration