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General & Administrative Expenses - Stock Compensation Series (Details)	12 Months Ended
	Dec. 31, 2016 $ / shares
October 2005 [Member]
Stock Compensation Series
Number of stock options	965
Vesting period	10 years
Fair value at grant date	$ 144.00
March 2012 [Member]
Stock Compensation Series
Vesting period	3 years
Fair value at grant date	$ 13.80
Number of restricted shares	14,515
June 2013 One [Member]
Stock Compensation Series
Vesting period	4 years
Fair value at grant date	$ 4.15
Number of restricted shares	155,000
June 2013 Two [Member]
Stock Compensation Series
Number of stock options	155,000
Vesting period	5 years
Fair value at grant date	$ 1.31
June 2013 Three [Member]
Stock Compensation Series
Number of stock options	155,000
Vesting period	5 years
Fair value at grant date	$ 0.97
February 2014 One [Member]
Stock Compensation Series
Vesting period	3 years
Fair value at grant date	$ 6.92
Number of restricted shares	29,333
February 2014 Two [Member]
Stock Compensation Series
Vesting period	3 years
Fair value at grant date	$ 6.33
Number of restricted shares	29,333
February 2014 Three [Member]
Stock Compensation Series
Vesting period	3 years
Fair value at grant date	$ 5.63
Number of restricted shares	29,333
February 2014 Four [Member]
Stock Compensation Series
Vesting period	3 years
Fair value at grant date	$ 7.61
Number of restricted shares	88,000
June 2014 One [Member]
Stock Compensation Series
Vesting period	3 years
Fair value at grant date	$ 6.41
Number of restricted shares	95,666
June 2014 Two [Member]
Stock Compensation Series
Vesting period	3 years
Fair value at grant date	$ 5.74
Number of restricted shares	95,666
June 2014 Three [Member]
Stock Compensation Series
Vesting period	3 years
Fair value at grant date	$ 5.13
Number of restricted shares	95,666
June 2014 Four [Member]
Stock Compensation Series
Vesting period	3 years
Fair value at grant date	$ 7.15
Number of restricted shares	287,000
January 2015 [Member]
Stock Compensation Series
Vesting period	3 years
Fair value at grant date	$ 8.81
Number of restricted shares	850,000
January 2016 [Member]
Stock Compensation Series
Vesting period	2 years
Fair value at grant date	$ 6.65
Number of restricted shares	824,000
January 2017 [Member]
Stock Compensation Series
Vesting period	2 years
Fair value at grant date	$ 4.61
Number of restricted shares	900,000

X

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The disclosure of share-based compensation.

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans.

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- Definition

Weighted average grant-date fair value of non-vested options outstanding.

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The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2017-01-01
-Paragraph 47
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
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The number of share options granted in a share-based payment arrangement.

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