Debt Long term debt (Tables)

6 Months Ended

Jun. 30, 2015

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, assuming the Company does not draw down on the Term Loan B, are as follows:

Years Ending December 31,	(in millions)
2015	$	0.6
2016	5.3
2017	6.7
2018	6.2
Total	$	18.8