Derivative liability - warrants (restated) (Tables)

12 Months Ended

Dec. 31, 2012

Derivative Liability Warrants [Abstract]

Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]

Financial assets and liabilities measured at fair value on a recurring basis are summarized below and disclosed on the consolidated balance sheets as of December 31, 2012:

	Fair value measurement using
	Carrying value		Level I		Level II		Level III		Total
Derivative warrant - liability	$	7,166	$	–	$	–	$	7,166	$	7,166

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

	Fair value measurement using Level III inputs
	Derivatives			Total
Balance January 1, 2012	$	–		$	–
Issuance of warrants to purchase intangible assets		851			851
Revaluation of warrant liability		(557	)		(557	)
Issuance of warrants with the issuance of Preferred Series A Convertible stock		6,731			6,731
Issuance of additional warrants due to anti-dilution provision		141			141
Transfers in and/or out of Level III		–			–
Balance December 31, 2012	$	7,166		$	7,166