Nature of the Business and Liquidity Nature of the Business and Liquidity (Details 1) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prior period reclassification adjustment	$ 0.4	$ 0.3
Wholesale fees (Revenue)
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prior period reclassification adjustment	0.9	0.9
Medicaid (Revenue)
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prior period reclassification adjustment	0.3	0.0
Sales return reserve (Revenue)
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prior period reclassification adjustment	0.0	(0.6)
Inventory adjustments (Cost of revenues)
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prior period reclassification adjustment	0.0	0.8
Bad debt expense (SG&A)
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prior period reclassification adjustment	$ (0.8)	$ (0.8)