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Additional Paid-In Capital (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended			3 Months Ended			3 Months Ended	0 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 In December 2014 [Member]	Mar. 31, 2013 Stock Option Plan [Member]	Mar. 31, 2013 2012 Offering [Member] In October 2015 [Member]	Mar. 31, 2013 2012 Offering [Member] In July 2014 [Member]	Mar. 31, 2013 Restricted Stock Units (RSUs) [Member]	Mar. 05, 2013 Employees And Executive Management [Member] Restricted Stock Units (RSUs) [Member]	Sep. 18, 2012 Employees And Executive Management [Member] Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrants outstanding (in shares)	19,977,743	19,977,743
Number of warrants expected to expire in future (in shares)			2,091,275		15,219,802	2,666,666
Percentage of common shares reserved for issuance				10.00%
Unrecognized compensation expense related to unvested options	$ 206						$ 2,875
Weighted average compensation recognition period	6 months 3 days			6 months 4 days			1 year 8 months 15 days
Stock options granted (in shares)								51,424
Number of awards cancelled	(9,288)
Period to measure the average adjusted value of the common shares								24 months
Award vesting period								3 years
Percentage of awards vested in three years								40.00%
Percentage of awards vested based on the performance								60.00%
Performance of share price, lower threshold								0
Performance of share price, upper threshold									100
Percentage to determine the benchmark of share price								20.00%
Percentage of performance equal to the benchmark								50.00%

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- Definition

Aggregate amount of each class of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690



Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

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