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Business Combinations (Tables)
 12 Months Ended
Dec. 31, 2016
Business Acquisition [Line Items]  
Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table Text Block]
The following table represents the changes in contingent consideration liabilities by segment:
 
Distribution & Storage
 
BioMedical
 
Total
Balance at January 1, 2014
$
—

 
$
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

Fair value of contingent consideration at inception
1,800

 
—

 
1,800

Decrease in fair value of contingent consideration liabilities
(39
)
 
(463
)
 
(502
)
Payment of contingent consideration
—

 
(611
)
 
(611
)
Balance at December 31, 2015
1,761

 
—

 
1,761

Increase in fair value of contingent consideration liabilities
162

 
—

 
162

Balance at December 31, 2016
$
1,923

 
$
—

 
$
1,923