Debt Long term debt (Tables)

3 Months Ended

Mar. 31, 2016

Long-term Debt, Unclassified [Abstract]

Schedule of Maturities of Long-term Debt [Table Text Block]

Estimated future principal payments, interest, and fees due under the Loan and Security Agreement are as follows:

Years Ending December 31,	(in millions)
2016	$	0.6
2017	5.3
2018	4.7
Total	$	10.6