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Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Tax Contingency [Line Items]
Limitation In Carry Forward Percentage Of Net Operating Loss	50.00%
Net Operating Losses For Tax Purposes	$ 38,500,000
Operating Loss Carryforward Expiration Date	The net operating loss carry forwards may be used to reduce taxable income through the years 2028 to 2036
Deferred tax assets, net	$ 13,090,000	$ 9,500,000

X

- Definition

Represents the limitation in percentage of net operating loss carry forward if fifty or more percent change in ownership of company's stock.

+ References

No definition available.

+ Details

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Namespace Prefix:	clir_
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Balance Type:	na
Period Type:	duration

X

- Definition

The appropriate value of net operating losses calculated for tax purposes.

+ References

No definition available.

+ Details

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Namespace Prefix:	clir_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The expiration date of each operating loss carryforward included in total operating loss carryforwards, or the applicable range of such expiration dates.

+ References

No definition available.

+ Details

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Namespace Prefix:	clir_
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X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Deferred Tax Asset
-URI http://asc.fasb.org/extlink&oid=6510090

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Balance Type:	debit
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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

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