Market Segments, Geographic Information and Significant Customers Market Segment Revenue as a % of Total Revenue (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Infusion Consumables [Member]
Market Segment Revenue as a % of Total Revenue [Line Items]
Percent of total revenue	28.00%	86.00%	84.00%
IV Solutions [Member]
Market Segment Revenue as a % of Total Revenue [Line Items]
Percent of total revenue	40.00%	0.00%	0.00%
Infusion Systems [Member]
Market Segment Revenue as a % of Total Revenue [Line Items]
Percent of total revenue	23.00%	0.00%	0.00%
Critical Care [Member]
Market Segment Revenue as a % of Total Revenue [Line Items]
Percent of total revenue	4.00%	14.00%	16.00%
Other Revenue [Member]
Market Segment Revenue as a % of Total Revenue [Line Items]
Percent of total revenue	5.00%	0.00%	0.00%