Stockholders' Equity (Details) - Warrant [Member] - $ / shares	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Summary of all stock option plans
Number of Shares/Warrants, Options outstanding and exercisable, Beginning Balance	1,116,368	1,116,368
Warrants, Issued
Warrants, Expired/forfeited
Warrants, Exercised	(360,000)
Number of Shares/Warrants, Options outstanding and exercisable Ending Balance	756,368	1,116,368	1,116,368
Weighted Average Exercise Price, Options outstanding and exercisable, Beginning Balance	$ 10.18	$ 10.18
Weighted Average Exercise Price, Warrants Issued
Weighted Average Exercise Price, Warrants Expired/forfeited
Weighted Average Exercise Price, Warrants Exercised	0.10
Weighted Average Exercise Price, Options outstanding and exercisable, Ending Balance	$ 14.98	$ 10.18	$ 10.18
Weighted Average Remaining Contractual Life, Outstanding	1 year 5 months 20 days	2 years 8 months 5 days	3 years 8 months 5 days

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

+ References

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Gross number of share options (or share units) granted during the period.

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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- Definition

Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of share options (or share units) exercised during the current period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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