Accrued expenses and derivative liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Accounts Payable and Accrued Liabilities [Abstract]

Schedule Of Accrued Expenses And Derivative Liabilities Text Block [Table Text Block]

Accrued expenses and derivative liabilities consist of the following (in thousands):

	December 31,
	2013		2012
Accrued expenses	$	2,792	$	3,804
Derivative liabilities		52		979
	$	2,844	$	4,783