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Derivative Liability - Schedule of Changes in Derivative Liability Related to Conversion Feature (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Fair value of derivative liability beginning balance	$ 2,169us-gaap_DerivativeLiabilitiesNoncurrent
Change in fair value of derivative liability	(2,919)	108
Reclassification to equity	(2,497)
Fair value of derivative liability end balance		2,169us-gaap_DerivativeLiabilitiesNoncurrent
Fair Value Of Derivative Liability One [Member]
Fair value of derivative liability drawdown	1,556
Fair Value Of Derivative Liability Two [Member]
Fair value of derivative liability drawdown	$ 1,691	$ 2,061

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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