Business Combinations Contigent Consideration (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition, Contingent Consideration [Line Items]
Business Combination, Contingent Consideration, Liability	$ 1,761,000	$ 1,074,000	$ 2,289,000	$ 1,990,000
Fair value of contingent consideration at inception	1,800,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration Recorded in Income, Liability	(502,000)	(474,000)	299,000
Payment of contingent consideration	(611,000)	(741,000)	0
Distribution & Storage [Member]
Business Acquisition, Contingent Consideration [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	11,288
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low	0
Business Combination, Contingent Consideration, Liability	1,761,000	0	0	0
Fair value of contingent consideration at inception	1,800,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration Recorded in Income, Liability	(39,000)	0	0
Payment of contingent consideration	0	0
BioMedical [Member]
Business Acquisition, Contingent Consideration [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	1,648
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low	0
Business Combination, Contingent Consideration, Liability	0	1,074,000	2,289,000	$ 1,990,000
Fair value of contingent consideration at inception	0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration Recorded in Income, Liability	(463,000)	(474,000)	$ 299,000
Payment of contingent consideration	$ (611,000)	$ (741,000)