XML 17 R46.htm IDEA: XBRL DOCUMENT
v3.20.1

Leases - Narrative (Details) | 6 Months Ended
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Mar. 31, 2020 USD ($)
Leases |
One single lease component | true
Number of lease arrangements entered into but have not commenced | 0
Finance Lease, Right-of-Use Asset | $ 0

X
- Definition Indicates (true false) whether practical expedient is elected to account for lease component and nonlease component as single lease component. + References No definition available. + Details
Name: | cspi_LeasePracticalExpedientLessorSingleLeaseComponentTrueFalse
Namespace Prefix: | cspi_
Data Type: | xbrli:booleanItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of lease arrangements entered into but not yet commenced. + References No definition available. + Details
Name: | cspi_NumberOfLeaseArrangementsEnteredIntoButNotYetCommenced
Namespace Prefix: | cspi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of lessee's right to use underlying asset under finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
Name: | us-gaap_FinanceLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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