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Leases | 3 Months Ended
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Dec. 31, 2021
Leases |
Leases | 8. Leases Information related to both lessee and lessor The components of lease costs for the three months ended December 31, 2021 and 2020 are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Three months ended
​ | Consolidated Consolidated Statements of Operations Location | ​ | December 31, 2021 |  | December 31, 2020
​ | ​ | ​ | (Amounts in thousands)
Finance Lease: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest on lease liabilities | Interest expense | ​ | $ | 1 | ​ | $ | 5
Operating Lease: | ​ | ​ |  | ​ | ​ |  | ​
Operating lease cost | Selling, general, and administrative | ​ |  | 179 | ​ |  | 188
Short-term lease cost | Selling, general, and administrative | ​ | ​ | 12 | ​ | ​ | 3
Total lease costs | ​ | ​ | $ | 192 | ​ | $ | 196
Less sublease interest income | Revenue | ​ | ​ | — | ​ | ​ | (11)
Total lease costs, net of sublease interest income | ​ | ​ | $ | 192 | ​ | $ | 185
​ Supplemental cash flow information related to leases for three months ended December 31, 2021 and 2020 is below: ​
​ | ​ | ​ | ​ | ​
​ | Three months ended
​ | December 31, 2021 | December 31, 2020
​ | (Amounts in thousands)
Cash paid for amounts included in the measurement of lease liabilities: | ​ | ​ | ​ | ​
Operating cash flows from operating leases | $ | 187 | $ | 191
Operating cash flows from short-term leases | ​ | 12 | ​ | 10
Operating cash flows from finance leases | ​ | 1 | ​ | 5
Financing cash flows from finance leases | ​ | 11 | ​ | 86
Lease assets obtained in exchange for new lease liabilities | ​ | ​ | ​ | ​
Operating leases | ​ | — | ​ | —
Cash received from subleases | ​ | 18 | ​ | 113
​

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- Definition The entire disclosure of information about leases. + References No definition available. + Details
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Namespace Prefix: | cspi_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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