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Income Taxes (Details Textual)	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Income Tax [Line Items]
Reserve for uncertain tax positions	$ 0	$ 0
Income tax benefit	27,000	109,000
Research Tax Credit Carryforward | Federal | Protecting Americans from Tax Hikes Act of 2015
Income Tax [Line Items]
Income tax benefit		109,000
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

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Income tax.

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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Amount recognized for uncertainty in income taxes classified as current.

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

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