Products, Major Customer, Concentration of Credit Risk (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, Net	$ 95,688	$ 97,108	$ 96,721	$ 89,855	$ 90,387	$ 86,016	$ 83,781	$ 81,484
Hospira [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total accounts receivable									23.00%	40.00%
Hospira [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Segment Reporting, Disclosure of Major Customers									0.3017923036	0.3573309921	0.3566117038
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Percent of total revenue									70.00%	71.00%	69.00%
International Sales [Domain]
Revenues from External Customers and Long-Lived Assets [Line Items]
Percent of total revenue									30.00%	29.00%	31.00%
Mexico Property and Equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	57,971				53,462				$ 57,971	$ 53,462
Slovakia Property and Equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	0				5,480				0	5,480
Italy Property and Equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	4,320				4,418				4,320	4,418
Germany Property and Equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	686				671				686	671
NETHERLANDS
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	278				49				278	49
AUSTRALIA
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	41				35				41	35
FRANCE
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	2								2		$ 0
United States property and equipment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 180,657				$ 158,933				$ 180,657	$ 158,933