XML 22 R37.htm IDEA: XBRL DOCUMENT v3.2.0.727

Loans by Type (Schedule of the Credit Exposure of the Loan Portfolio) (Details) - USD ($)
$ in Thousands

Jun. 30, 2015

Dec. 31, 2014

Participating Mortgage Loans [Line Items]

Loans

$ 675,167

$ 669,346

Loans Subject To Normal Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[1]

653,165

649,508

Performing Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

18,826

19,350

Nonperforming Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

3,176

488

Commercial and Industrial [Member]

Participating Mortgage Loans [Line Items]

Loans

208,566

203,350

Commercial and Industrial [Member] | Loans Subject To Normal Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[1]

205,153

199,837

Commercial and Industrial [Member] | Performing Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

$ 3,413

$ 3,513

Commercial and Industrial [Member] | Nonperforming Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

Real Estate Commercial Mortgage [Member]

Participating Mortgage Loans [Line Items]

Loans

$ 115,338

$ 117,754

Real Estate Commercial Mortgage [Member] | Loans Subject To Normal Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[1]

101,487

103,097

Real Estate Commercial Mortgage [Member] | Performing Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

10,789

14,296

Real Estate Commercial Mortgage [Member] | Nonperforming Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

$ 3,062

$ 361

Real Estate Commercial Construction [Member]

Participating Mortgage Loans [Line Items]

Loans

Real Estate Commercial Construction [Member] | Loans Subject To Normal Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[1]

Real Estate Commercial Construction [Member] | Performing Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

Real Estate Commercial Construction [Member] | Nonperforming Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

Real Estate Church Related Mortgage [Member]

Participating Mortgage Loans [Line Items]

Loans

$ 308,236

$ 305,887

Real Estate Church Related Mortgage [Member] | Loans Subject To Normal Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[1]

303,498

304,219

Real Estate Church Related Mortgage [Member] | Performing Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

4,624

1,541

Real Estate Church Related Mortgage [Member] | Nonperforming Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

114

127

Real Estate Church Related Construction [Member]

Participating Mortgage Loans [Line Items]

Loans

21,267

18,612

Real Estate Church Related Construction [Member] | Loans Subject To Normal Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[1]

$ 21,267

$ 18,612

Real Estate Church Related Construction [Member] | Performing Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

Real Estate Church Related Construction [Member] | Nonperforming Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

Industrial Revenue Bonds [Member]

Participating Mortgage Loans [Line Items]

Loans

$ 21,723

$ 23,348

Industrial Revenue Bonds [Member] | Loans Subject To Normal Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[1]

$ 21,723

$ 23,348

Industrial Revenue Bonds [Member] | Performing Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

Industrial Revenue Bonds [Member] | Nonperforming Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

Other [Member]

Participating Mortgage Loans [Line Items]

Loans

$ 37

$ 395

Other [Member] | Loans Subject To Normal Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[1]

$ 37

$ 395

Other [Member] | Performing Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

Other [Member] | Nonperforming Loans Subject To Special Monitoring [Member]

Participating Mortgage Loans [Line Items]

Loans

^[2]

[1]	Loans subject to normal monitoring involve borrowers of acceptable-to-strong credit quality and risk, who have the apparent ability to satisfy their loan obligations.
[2]	Loans subject to special monitoring possess some credit deficiency or potential weakness which requires a high level of management attention.

X

- Definition

An amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money within one year from the balance sheet date (or the normal operating cycle, whichever is longer), net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section 45



-Paragraph 9



-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4531-111522



Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 210



-SubTopic 10



-Section 45



-Paragraph 1



-Subparagraph (c)



-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

+ Details

Name:	us-gaap_NotesAndLoansReceivableNetCurrent
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_ParticipatingMortgageLoansLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	cass_CreditExposureOfLoanPortfolioAxis=cass_LoansSubjectToNormalMonitoringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cass_CreditExposureOfLoanPortfolioAxis=cass_PerformingLoansSubjectToSpecialMonitoringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cass_CreditExposureOfLoanPortfolioAxis=cass_NonperformingLoansSubjectToSpecialMonitoringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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_RealEstateChurchRelatedMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cass_RealEstateChurchRelatedConstructionLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cass_IndustrialRevenueBondMember
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: