XML 84 R55.htm IDEA: XBRL DOCUMENT v3.20.1

Equity - Stock options - Compensation cost (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Share-based compensation
Compensation cost, Effect on loss	$ 568,000	$ 224,000
Effect on net loss per share (in dollars per share)	$ 0.02	$ 0.01
Research and development
Share-based compensation
Compensation cost, Effect on loss	$ 174,000	$ 145,000
General and administrative
Share-based compensation
Compensation cost, Effect on loss	$ 394,000	$ 79,000

X

- Definition

The per share value of compensation cost and its effect on net loss per share.

+ References

No definition available.

+ Details

Name:	clir_ShareBasedCompensationEffectOfNetLossPerShare
Namespace Prefix:	clir_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount, after tax, of expense for award under share-based payment arrangement.

+ References

No definition available.

+ Details

Name:	us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_ResearchAndDevelopmentExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: