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.

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

+ References

No definition available.

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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

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

+ References

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- Definition

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

+ References

No definition available.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

+ References

No definition available.

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

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Purchase Warrants (Details) - $ / shares	12 Months Ended
Purchase Warrants (Details) - $ / shares	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Number of shares outstanding	511,000
Issued	112,500	598,500
Cancelled	279,000	87,500
Exercised
Number of shares outstanding	344,500	511,000
Weighted avg exercise price outstanding	$ 3.82
Weighted Avg. Exercise Price, Granted/issued	7.01	$ 3.91
Weighted Avg. Exercise Price, Cancelled
Weighted Avg. Exercise Price, Exercised
Weighted avg exercise price outstanding	$ 4.57	$ 3.82
Warrant [Member]
Number of shares outstanding
Issued	115,000
Cancelled
Exercised
Number of shares outstanding	115,000
Weighted avg exercise price outstanding
Weighted Avg. Exercise Price, Granted/issued	6.25
Weighted Avg. Exercise Price, Cancelled
Weighted Avg. Exercise Price, Exercised
Weighted avg exercise price outstanding	$ 6.25