XML 46 R37.htm IDEA: XBRL DOCUMENT
v3.22.4

Leases - Narrative (Details) |  |  | 3 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 30, 2022 USD ($) | Nov. 01, 2022 USD ($) lease | Jan. 31, 2023 USD ($) | Jan. 31, 2022 USD ($) | Jul. 31, 2020 USD ($) | Jan. 31, 2023 USD ($) | Jan. 31, 2022 USD ($) | Apr. 30, 2022 USD ($) | Oct. 01, 2021 USD ($) | Apr. 01, 2021 USD ($) | Jun. 01, 2020 USD ($) | Mar. 30, 2020
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating leases, rent expense |  |  | $ 475,000 | $ 469,000 |  | $ 1,400,000 | $ 1,400,000 |  |  |  |  |
Extension term |  |  |  |  |  |  |  |  |  |  |  | 6 months
Operating lease right-of-use assets, net |  |  | 7,590,000 |  |  | 7,590,000 |  | $ 8,230,000 |  |  |  |
Operating lease, liability |  |  | $ 8,869,000 |  |  | $ 8,869,000 |  |  |  |  |  |
Weighted average remaining lease term (in years) |  |  | 5 years 11 months 15 days |  |  | 5 years 11 months 15 days |  |  |  |  |  |
Weighted average discount rate, percent |  |  | 5.82% |  |  | 5.82% |  |  |  |  |  |
Corporate Headquarters |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating leases, rent expense |  |  | $ 20,000 | 24,000 |  | $ 62,000 | 70,000 |  |  |  |  |
Rockville, MD |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating leases, rent expense |  |  | 422,000 | 422,000 |  | 1,300,000 | 1,300,000 |  |  |  |  |
Operating lease right-of-use assets, net |  |  |  |  | $ 118,000 |  |  |  |  |  | $ 3,800,000 |
Operating lease, liability |  |  |  |  | 125,000 |  |  |  |  |  | $ 3,800,000 |
Incremental rent expense |  |  |  |  | $ 8,000 |  |  |  |  |  |  |
Additional Expansion Premises |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating lease right-of-use assets, net |  |  |  |  |  |  |  |  |  | $ 3,300,000 |  |
Operating lease, liability |  |  |  |  |  |  |  |  |  | $ 3,300,000 |  |
Milan Italy |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating leases, rent expense |  |  | 34,000 | $ 23,000 |  | $ 81,000 | $ 58,000 |  |  |  |  |
Operating lease right-of-use assets, net |  | $ 231,000 |  |  |  |  |  |  | $ 205,000 |  |  |
Operating lease, liability |  | $ 231,000 |  |  |  |  |  |  | $ 205,000 |  |  |
Number of leases replaced | lease |  | 2 |  |  |  |  |  |  |  |  |  |
Milan Italy Office Space Lease |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Right-of-use asset, decrease for lease termination | $ 40,700 |  |  |  |  |  |  |  |  |  |  |
Lease liability, decrease for lease termination | 41,500 |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on termination of lease | $ 1,000 |  |  |  |  |  |  |  |  |  |  |
Milan Italy Laboratory Lease |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Right-of-use asset, decrease for lease termination |  |  | 20,000 |  |  |  |  |  |  |  |  |
Lease liability, decrease for lease termination |  |  | $ 20,000 |  |  |  |  |  |  |  |  |

X
- Definition Operating Lease, Incremental Rent Expense + References No definition available. + Details
Name: | csbr_OperatingLeaseIncrementalRentExpense
Namespace Prefix: | csbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Operating Lease, Liability, Decrease For Lease Termination + References No definition available. + Details
Name: | csbr_OperatingLeaseLiabilityDecreaseForLeaseTermination
Namespace Prefix: | csbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Operating Lease, Number Of Leases Replaced + References No definition available. + Details
Name: | csbr_OperatingLeaseNumberOfLeasesReplaced
Namespace Prefix: | csbr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Operating Lease, Right Of Use Asset, Decrease For Lease Termination + References No definition available. + Details
Name: | csbr_OperatingLeaseRightOfUseAssetDecreaseForLeaseTermination
Namespace Prefix: | csbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of gain (loss) on termination of lease before expiration of lease term. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 40 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=123386189&loc=SL77918607-209975 + Details
Name: | us-gaap_GainLossOnTerminationOfLease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
Name: | us-gaap_OperatingLeaseExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Present value of lessee's discounted obligation for lease payments from operating 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 (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of lessee's right to use underlying asset under operating 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 https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Weighted average discount rate for operating lease calculated at point in time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(4) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI https://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + Details
Name: | us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI https://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980 + Details
Name: | us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csbr_CorporateHeadquartersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csbr_RockvilleMDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csbr_AdditionalExpansionPremisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csbr_MilanItalyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csbr_MilanItalyOfficeSpaceLeaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=csbr_MilanItalyLaboratoryLeaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |