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Business Combinations (Tables)
 12 Months Ended
Dec. 31, 2014
Business Acquisition [Line Items]  
Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table Text Block]
The changes in the Company’s contingent consideration liabilities are summarized below:
 
Distribution & Storage
 
BioMedical
 
Total
Balance at January 1, 2012
$
841

 
$
6,226

 
$
7,067

Increase (decrease) in fair value of contingent consideration liabilities
459

 
(4,236
)
 
(3,777
)
Payment of contingent consideration
(1,300
)
 
—

 
(1,300
)
Balance at December 31, 2012
—

 
1,990

 
1,990

Increase in fair value of contingent consideration liabilities
—

 
299

 
299

Balance at December 31, 2013
—

 
2,289

 
2,289

Decrease in fair value of contingent consideration liabilities
—

 
(474
)
 
(474
)
Payment of contingent consideration
—

 
(741
)
 
(741
)
Balance at December 31, 2014
$
—

 
$
1,074

 
$
1,074