Restructuring Costs (Tables)

12 Months Ended

Dec. 31, 2014

Restructuring Costs [Abstract]

Restructuring and Related Costs [Table Text Block]

The following table summarizes the restructuring accruals for the year ended December 31, 2014:

	Employee and Contract Termination Accrual			PROCEED Trial Termination Accrual			Total
Balance, January 1, 2014	$	—		$	—		$	—
Charges for the year ended December 31, 2014		1,300,000			4,100,000			5,400,000
Amounts paid in the year ended December 31, 2014		(1,300,000	)		(2,800,000	)		(4,100,000	)
Balance, December 31, 2014	$	—		$	1,300,000		$	1,300,000