XML 21 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

LOANS AND ALLOWANCE FOR LOAN LOSSES, RECEIVABLES PAST DUE (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2014 | Dec. 31, 2013
--- | --- | ---
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Current | $ 1,094,109 |  | $ 970,708 |
30-89 Days Past Due | 7,079 |  | 8,069 |
90 Days or more Past Due and accruing | 2,527 |  | 1,473 |
Loans acquired with deteriorated credit quality | 5,770 |  | 9,696 |
Non-Accrual | 7,209 | [1] | 8,517 | [2]
Total | 1,116,694 |  | 998,463 |
Commercial and Agricultural [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Loans acquired with deteriorated credit quality | 607 |  | 678 |
Total | 166,213 |  | 145,732 |
Commercial and industrial [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Current | 164,207 |  | 143,100 |
30-89 Days Past Due | 206 |  | 29 |
90 Days or more Past Due and accruing | 0 |  | 0 |
Loans acquired with deteriorated credit quality | 607 |  | 678 |
Non-Accrual | 324 | [1] | 1,348 | [2]
Total | 165,344 |  | 145,155 |
Agricultural [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Current | 869 |  | 577 |
30-89 Days Past Due | 0 |  | 0 |
90 Days or more Past Due and accruing | 0 |  | 0 |
Loans acquired with deteriorated credit quality | 0 |  | 0 |
Non-Accrual | 0 | [1] | 0 | [2]
Total | 869 |  | 577 |
Commercial mortgages [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Loans acquired with deteriorated credit quality | 4,917 |  | 8,757 |
Total | 436,115 |  | 374,096 |
Construction [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Current | 44,710 |  | 24,742 |
30-89 Days Past Due | 0 |  | 0 |
90 Days or more Past Due and accruing | 1,447 |  | 1,454 |
Loans acquired with deteriorated credit quality | 774 |  | 774 |
Non-Accrual | 152 | [1] | 540 | [2]
Total | 47,083 |  | 27,510 |
Commercial mortgages [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Current | 378,459 |  | 335,123 |
30-89 Days Past Due | 2,542 |  | 1,138 |
90 Days or more Past Due and accruing | 1,077 |  | 0 |
Loans acquired with deteriorated credit quality | 4,143 |  | 7,983 |
Non-Accrual | 2,811 | [1] | 2,342 | [2]
Total | 389,032 |  | 346,586 |
Residential mortgages [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Current | 187,777 |  | 187,448 |
30-89 Days Past Due | 2,219 |  | 5,458 |
90 Days or more Past Due and accruing | 0 |  | 0 |
Loans acquired with deteriorated credit quality | 246 |  | 261 |
Non-Accrual | 3,132 | [1] | 3,358 | [2]
Total | 193,374 |  | 196,525 |
Consumer Loans [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Loans acquired with deteriorated credit quality | 0 |  | 0 |
Total | 320,992 |  | 282,110 |
Credit cards [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Current | 1,601 |  | 1,729 |
30-89 Days Past Due | 17 |  | 9 |
90 Days or more Past Due and accruing | 3 |  | 19 |
Loans acquired with deteriorated credit quality | 0 |  | 0 |
Non-Accrual | 0 | [1] | 0 | [2]
Total | 1,621 |  | 1,757 |
Home equity lines and loans [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Current | 100,153 |  | 95,349 |
30-89 Days Past Due | 608 |  | 150 |
90 Days or more Past Due and accruing | 0 |  | 0 |
Loans acquired with deteriorated credit quality | 0 |  | 0 |
Non-Accrual | 465 | [1] | 635 | [2]
Total | 101,226 |  | 96,134 |
Indirect consumer loans [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Current | 195,291 |  | 163,810 |
30-89 Days Past Due | 1,426 |  | 1,235 |
90 Days or more Past Due and accruing | 0 |  | 0 |
Loans acquired with deteriorated credit quality | 0 |  | 0 |
Non-Accrual | 286 | [1] | 249 | [2]
Total | 197,003 |  | 165,294 |
Direct consumer loans [Member] |  |  |  |
Aging of the recorded investment in loans past due [Abstract] |  |  |  |
Current | 21,042 |  | 18,830 |
30-89 Days Past Due | 61 |  | 50 |
90 Days or more Past Due and accruing | 0 |  | 0 |
Loans acquired with deteriorated credit quality | 0 |  | 0 |
Non-Accrual | 39 | [1] | 45 | [2]
Total | $ 21,142 |  | $ 18,925 |
[1] | Includes all loans on non-accrual status regardless of the number of days such loans were delinquent as of September 30, 2014.
[2] | Includes all loans on non-accrual status regardless of the number of days such loans were delinquent as of December 31, 2013.

X
- Definition Financing receivables that are less than 90 days past due but more than 29 days past due. + References No definition available. + Details
Name: | chmg_FinancingReceivableRecordedInvestment30To89DaysPastDue
Namespace Prefix: | chmg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were acquired with deteriorated credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivables that are current. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDueAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 + Details
Name: | us-gaap_NotesReceivableNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant