Products, Major Customer, Concentration of Credit Risk (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets Held-for-sale, Not Part of Disposal Group	$ 8,200								$ 8,200
Revenue, Net	90,387	$ 86,016	$ 83,781	$ 81,484	$ 79,896	$ 77,457	$ 78,677	$ 73,230
Hospira [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total accounts receivable									40.00%	27.00%
Hospira [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Segment Reporting, Disclosure of Major Customers									0.36	0.36	0.39
Infusion Therapy [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, Net									$ 244,746	$ 216,280	$ 221,192
Critical Care Revenue [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, Net									54,312	55,074	54,328
Oncology Revenue [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, Net									41,447	36,651	36,857
Other Revenue [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, Net									1,163	1,255	1,339
Sales Revenue, Net [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, Net									$ 341,668	$ 309,260	$ 313,716
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Percent of total revenue									71.00%	69.00%	71.00%
International Sales [Domain]
Revenues from External Customers and Long-Lived Assets [Line Items]
Percent of total revenue									29.00%	31.00%	29.00%
Mexico Property and Equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	53,462				51,554				$ 53,462	$ 51,554
Slovakia Property and Equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	5,480				16,643				5,480	16,643
Italy Property and Equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	4,418				4,855				4,418	4,855
Germany Property and Equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	671				638				671	638
NETHERLANDS
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	49				0				49	0
AUSTRALIA
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	35				0				35	0
United States property and equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 158,933				$ 151,024				$ 158,933	$ 151,024