Fair value portion of accounts and long term receivables.

No definition available.

Name:	cspi_AccountsAndLongTermReceivablesFairValueDisclosure
Namespace Prefix:	cspi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value portion of accounts payables, accrued expenses and other non current liabilities.

+ References

No definition available.

+ Details

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Namespace Prefix:	cspi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the maturity term of accounts and long term receivables.

+ References

No definition available.

+ Details

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Namespace Prefix:	cspi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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

- References

No definition available.

+ Details

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

- Definition

Fair value of financial and nonfinancial obligations.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time.

+ References

No definition available.

+ Details

Name:	us-gaap_LinesOfCreditFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value portion of notes payable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20,22)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

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- Details

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Fair Value Disclosures (Details) - USD ($) $ in Thousands	6 Months Ended
Fair Value Disclosures (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Fair Value, Recurring
Assets:
Assets, Fair Value Disclosure		$ 0		$ 0
Liabilities Fair Value Disclosure	$ 0		$ 0
Fair Value, Nonrecurring
Assets:
Assets, Fair Value Disclosure	0		0
Liabilities Fair Value Disclosure	$ 0		0
Minimum
Liabilities:
Maturity term of accounts and long term receivables	1 year
Carrying Amount \| Level 1
Assets:
Cash and cash equivalents	$ 13,312		23,982
Carrying Amount \| Level 2
Liabilities:
Line of Credit	1,338		3,124
Carrying Amount \| Level 3
Assets:
Accounts and long-term receivable	15,442		16,328
Liabilities:
Accounts payable and accrued expenses and other long-term liabilities	4,518		4,622
Notes payable	438		876
Fair Value \| Level 1
Assets:
Cash and cash equivalents	13,312		23,982
Fair Value \| Level 2
Liabilities:
Line of Credit	1,338		3,124
Fair Value \| Level 3
Assets:
Accounts and long-term receivable	15,442		16,328
Liabilities:
Accounts payable and accrued expenses and other long-term liabilities	4,518		4,622
Notes payable	$ 438		$ 876