XML 33 R24.htm IDEA: XBRL DOCUMENT
v3.22.1

Summary of Significant Accounting Policies - Noncontrolling interest (Details) | Mar. 31, 2022
--- | ---
Minority Shareholder (Member) |
Variable Interest Entity [Line Items] |
Minority shareholder ownership interest percentage | 1.00%

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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

X
- Details
Name: | srt_OwnershipAxis=clir_MinorityShareholderMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |