Income tax.

No definition available.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
-Paragraph 22
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
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-Section S99
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-Publisher FASB
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- Definition

Amount recognized for uncertainty in income taxes classified as current.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
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-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319

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Income Taxes (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
Income Taxes (Details Textual) - USD ($)	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax [Line Items]
Reserve for uncertain tax positions	$ 0		$ 0
Income tax benefit	42,000	$ 31,000	151,000	$ 31,000
Research Tax Credit Carryforward \| Federal \| Protecting Americans from Tax Hikes Act of 2015
Income Tax [Line Items]
Income tax benefit			151,000
Research Tax Credit Carryforward \| Federal \| Protecting Americans from Tax Hikes Act of 2015 \| Maximum
Income Tax [Line Items]
Research and experimentation credits	$ 250,000		$ 250,000