Income Taxes (Details Textual)	12 Months Ended
Dec. 31, 2019 USD ($)
Income Taxes (Textual)
NOL for Federal tax	$ 107,767,000
NOL for State tax	16,180,000
NOL for Foreign tax	815,000
Various tax credits, amount	$ 8,315,000
Period of expiration of various tax credits	Expire from 2020 to 2037.
Net operating loss carry forwards, limitations on use, description	Limits the use of NOLs to the extent there has been an ownership change of more than 50 percentage points.
NOL carryforwards	$ 610,676

Expiration of tax credits.

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Income Taxes Textual [Abstract].

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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A description of the limitations on the use of all operating loss carryforwards available to reduce future taxable income.

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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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