XML 115 R57.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Loans (Schedule of the Aging of Loans by Loan Categories) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Non Accrual |  |
Total Loans | 772,638 | 721,587
Commercial and Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non Accrual |  |
Total Loans | 323,857 | 277,091
Real Estate Commercial Mortgage [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non Accrual |  |
Total Loans | 101,654 | 95,605
Real Estate Commercial Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non Accrual |  |
Total Loans | 25,299 | 11,858
Real Estate Faith based Mortgage [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non Accrual |  |
Total Loans | 305,826 | 316,147
Real Estate Faith-based Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non Accrual |  |
Total Loans | 15,945 | 20,576
Other [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non Accrual |  |
Total Loans | 57 | 310
Current [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 772,638 | 721,587
Current [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 323,857 | 277,091
Current [Member] | Real Estate Commercial Mortgage [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 101,654 | 95,605
Current [Member] | Real Estate Commercial Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 25,299 | 11,858
Current [Member] | Real Estate Faith based Mortgage [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 305,826 | 316,147
Current [Member] | Real Estate Faith-based Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 15,945 | 20,576
Current [Member] | Other [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 57 | 310
30-59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
30-59 Days [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
30-59 Days [Member] | Real Estate Commercial Mortgage [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
30-59 Days [Member] | Real Estate Commercial Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
30-59 Days [Member] | Real Estate Faith based Mortgage [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
30-59 Days [Member] | Real Estate Faith-based Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
30-59 Days [Member] | Other [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
60-89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
60-89 Days [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
60-89 Days [Member] | Real Estate Commercial Mortgage [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
60-89 Days [Member] | Real Estate Commercial Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
60-89 Days [Member] | Real Estate Faith based Mortgage [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
60-89 Days [Member] | Real Estate Faith-based Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
60-89 Days [Member] | Other [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
90 Days and over [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
90 Days and over [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
90 Days and over [Member] | Real Estate Commercial Mortgage [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
90 Days and over [Member] | Real Estate Commercial Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
90 Days and over [Member] | Real Estate Faith based Mortgage [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
90 Days and over [Member] | Real Estate Faith-based Construction [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |
90 Days and over [Member] | Other [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans |  |

X
- Definition Amount of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable past due. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922355-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919253-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after allowance for credit loss, of financing receivable, classified as current. Includes, but is not limited to, notes and loan receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4531-111522 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -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 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765 + Details
Name: | us-gaap_NotesAndLoansReceivableNetCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cass_CommercialAndIndustrialLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cass_RealEstateCommercialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cass_RealEstateCommercialConstructionLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cass_RealEstateFaithBasedRelatedMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cass_RealEstateFaithBasedConstructionLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cass_OtherFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables1To29DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |