| **Accounting For Certain Loans Acquired In a Purchase (Tables)**                                               | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
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| **Receivables [Abstract]**                                                                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| Schedule of Carrying Values of Certain Loans Acquired in Transfer Not Accounted for as Debt Securities         | The following table includes the outstanding balance and carrying amount of all the performing and non-performing acquired loans, which are included in the Corporation's balance sheet at December 31, 2014 and 2013.   December 31, 2014December 31, 2013Community CFSSCBTotalCFS SCB TotalOutstanding Balance:             Commercial and industrial loans$8,168 $64,897$6,059$79,124$81,303 $8,184 $89,487Agricultural production financing and other loans to farmers1,100 8931,993 1,161 1,161Real estate loans:     Construction19,063 9,11328,17617,962  17,962Commercial and farmland74,600 251,00215,593341,195311,631 23,418 335,049Residential28,863 144,3967,384180,643166,754 9,359 176,113       Home Equity9,881 39,24415,75864,88349,042 18,236 67,278Individuals' loans for household and other personal expenditures1,314 9221212,3572,360 269 2,629Other Loans 8686$132 $407 $539Total$142,989 $509,660$45,808$698,457$629,184 $61,034 $690,218   Carrying Amount$134,198 $484,949$39,324$658,471$585,913 $50,269 $636,182Allowance 650650 229 229Carrying Amount Net of Allowance$134,198 $484,299$39,324$657,821$585,913 $50,040 $635,953 |
| Schedule of Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement | ccretable yield, or income expected to be collected, and reclassifications from nonaccretable yield, are identified in the table below.Twelve months endedDecember 31, 2014December 31, 2013December 31, 2012CommunityCFSSCBTotal CFSSCBTotal SCBBeginning balance$13,435$5,864$19,299$5,142$5,142$—Additions$5,6875,687$13,59913,599Accretion(394)(6,431)(2,058)(8,883)(164)(2,071)(2,235)9,774Reclassification from nonaccretable1194,5017995,4192,8882,888(4,632)Disposals(1,594)(492)(2,086)(95)(95)—Ending balance$5,412$9,911$4,113$19,436$13,435$5,864$19,299$5,142                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| Schedule Of Loans Acquired During Period For Which Contractually Required Payments Would Not Be Collected      | The following table presents loans acquired during the periods ending December 31, 2014 and 2013, for which it was probable at acquisition that all contractually required payments would not be collected:Community - 2014CFS - 2013Contractually required payments receivable at acquisition date$26,032$109,839Nonaccretable difference3,49822,679Expected cash flows at acquisition date22,53487,160Accretable difference2,2343,502Basis in loans at acquisition date$20,300$83,658                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |

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Schedule of Carrying Values of Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Table Text Block]
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Schedule of Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement [Table Text Block]
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Tabular disclosure of the reconciliation of contractual cash flows to the carrying amount relating to certain loans acquired in a transfer.
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No definition available.
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