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Equity - Summary of Stock Option Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Equity [Abstract]
Number of Options (in shares), Outstanding at beginning of year	1,364,490	1,466,489
Number of Options (in shares), Granted at market price	230,000	227,500
Number of Options (in shares), Exercised	96,250
Number of Options (in shares), Forfeited or expired	775,739	(329,499)
Number of Options (in shares), Outstanding at end of year	722,501	1,364,490
Number of Options (in shares), Exercisable at end of year	429,833	1,190,156
Weighted Average Exercise Price Per Share, Outstanding at beginning of year	$ 1.87	$ 3.01
Weighted Average Exercise Price Per Share, Granted	0.36	0.31
Weighted Average Exercise Price Per Share, Exercised	0.19
Weighted Average Exercise Price Per Share, Forfeited or expired	2.80	5.86
Weighted Average Exercise Price Per Share, Outstanding at end of year	0.62	1.87
Weighted Average Exercise Price Per Share, Exercisable at end of year	$ 0.81	$ 2.10

X

- Definition

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.

+ References

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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

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- Definition

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

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

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

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

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

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

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