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v3.20.1

Subsequent Events (Details) - Subsequent Event [Member] | Jan. 15, 2020 D $ / shares
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Subsequent Event |
Bid price | $ / shares | $ 1.00
Number of consecutive business days | 30
Minimum [Member] |
Subsequent Event |
Number of consecutive business days | 10

X
- Definition Represents the consecutive trading days in a stock market. + References No definition available. + Details
Name: | clir_StockMarketThresholdConsecutiveTradingDays
Namespace Prefix: | clir_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
Name: | us-gaap_SharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |