XML 50 R34.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Interest-Bearing Deposits (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Interest-Bearing Deposits [Abstract] |
Schedule of Interest Bearing Deposits | Interest-bearing deposits consist of the following:
|  | December 31,
(In thousands) |  | 2017 |  | 2016
Interest-bearing demand deposits |  | $ | 332,881 |  |  | $ | 322,091 |
Savings deposits |  |  | 11,168 |  |  |  | 29,430 |
Time deposits: |  |  |  |  |  |  |  |
Less than $100 |  |  | 2,658 |  |  |  | 3,523 |
$100 to less than $250 |  |  | 33,385 |  |  |  | 37,179 |
$250 or more |  |  | 16,455 |  |  |  | 15,082 |
Total |  | $ | 396,547 |  |  | $ | 407,305 |
Weighted average interest rate |  |  | .56 | % |  |  | .48 | %
Schedule of Interest on Deposits | Interest on deposits consists of the following:
|  | December 31,
(In thousands) |  | 2017 |  | 2016 |  | 2015
Interest-bearing demand deposits |  | $ | 1,611 |  | $ | 1,387 |  | $ | 1,392
Savings deposits |  |  | 79 |  |  | 100 |  |  | 65
Time deposits: |  |  |  |  |  |  |  |  |
Less than $100 |  |  | 234 |  |  | 274 |  |  | 346
$100 to less than $250 |  |  | 114 |  |  | 191 |  |  | 119
$250 or more |  |  | 149 |  |  | 77 |  |  | 189
Total |  | $ | 2,187 |  | $ | 2,029 |  | $ | 2,111
Schedule of Maturities of Time Deposits | The scheduled maturities of time deposits are summarized as follows:
|  | December 31,
|  | 2017 |  | 2016
|  |  |  |  | Percent |  |  |  |  | Percent
(In thousands) |  | Amount |  | of Total |  | Amount |  | of Total
Due within: |  |  |  |  |  |  |  |  |  |  |  |
One year |  | $ | 48,370 |  | 92.1 | % |  | $ | 48,740 |  | 87.4 | %
Two years |  |  | 281 |  | 0.5 |  |  |  | 4,752 |  | 8.5 |
Three years |  |  | 2,383 |  | 4.5 |  |  |  | 155 |  | 0.3 |
Four years |  |  | 25 |  | 0.1 |  |  |  | 2,072 |  | 3.7 |
Five years |  |  | 1,439 |  | 2.8 |  |  |  | 65 |  | 0.1 |
Total |  | $ | 52,498 |  | 100.0 | % |  | $ | 55,784 |  | 100.0 | %

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

X
- Definition Tabular disclosure of interest bearing deposits. + References No definition available. + Details
Name: | cass_ScheduleOfInterestBearingDepositsTableTextBlock
Namespace Prefix: | cass_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of interest expense on deposit accounts. + References No definition available. + Details
Name: | cass_ScheduleOfInterestExpenseOnDepositsTableTextBlock
Namespace Prefix: | cass_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of maturities of time deposits. + References No definition available. + Details
Name: | cass_ScheduleOfMaturitiesOfTimeDepositsTableTextBlock
Namespace Prefix: | cass_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration