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Summary of Significant Accounting Policies (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Summary of Significant Accounting Policies [Abstract]
Number of shares excluded from the computation of net loss per share	15,359,430	15,722,925
Reclassification of general and administrative expenses	$ 200
Foreign currency translation adjustment	(133)
Cash held in bank accounts in Sweden	$ 300

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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