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Equity - Summary of Stock Option Activity (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($) $ / shares shares
Equity [Abstract]
Number of Options, Outstanding at beginning balance | shares	1,401,489
Number of Options, Granted | shares	175,000
Number of Options, Exercised | shares
Number of Options, Forfeited or expired | shares	(20,000)
Number of Options, Outstanding at end balance | shares	1,556,489
Number of Options, Exercisable at end of period | shares	1,465,239
Weighted Average Exercise Price, Outstanding at beginning balance | $ / shares	$ 3.45
Weighted Average Exercise Price, Granted at market price | $ / shares	0.32
Weighted Average Exercise Price, Exercised | $ / shares
Weighted Average Exercise Price, Forfeited or expired | $ / shares	0.20
Weighted Average Exercise Price, Outstanding at end balance | $ / shares	3.14
Weighted Average Exercise Price, Exercisable at end of period | $ / shares	$ 3.31
Weighted Average Remaining Contractual Life Outstanding Ending balance	2 years 9 months 18 days
Weighted Average Remaining Contractual Life Exercisable Ending balance	2 years 7 months 6 days
Aggregate Intrinsic Value Outstanding ending balance | $	$ 24
Aggregate Intrinsic Value Exercisable ending balance | $	$ 24

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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.

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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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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.

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

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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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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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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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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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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