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v3.22.2

Subsequent Events (Details) - Agreement - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Aug. 09, 2022 | Dec. 31, 2021
Subsequent events |  |
Payments to be received from transaction over next two years |  | $ 0.5
Subsequent Event |  |
Subsequent events |  |
Payments to be received from transaction over next two years | $ 12.8 |

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- Definition Accounts and long term receivable payments to be received from year one to year two. + References No definition available. + Details
Name: | cspi_AccountsAndLongTermReceivablePaymentsToBeReceivedFromYearOneToYearTwo
Namespace Prefix: | cspi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=cspi_RevenueAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |