Summary of Significant Accounting Policies (Narrative) (Details)	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020 USD ($) segment	Jun. 30, 2019 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Impairment			$ 0	$ 0
Federal tax rate	21.00%	21.00%	21.00%	21.00%
Operating segments \| segment			1
Tax (benefit) expense			$ 271,932	$ 636,537
Illinois [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration risk	25.70%	25.60%	26.10%	27.50%

Other Comprehensive Income Loss, Taxes

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Summary Of Significant Accounting Policies [Line Items]

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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