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Business Combinations Contingent Consideration (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Payment of Contingent Consideration   $ 0 $ 611,000  
Thermax [Member] | Minimum [Member]        
Business Acquisition, Contingent Consideration, Potential Cash Payment   0    
Thermax [Member] | Maximum [Member]        
Business Acquisition, Contingent Consideration, Potential Cash Payment   11,288    
BioMedical [Member]        
Payment of Contingent Consideration $ 611,000      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration Recorded in Income, Liability     $ 0  
Distribution & Storage [Member]        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Business Combination, Contingent Consideration Arrangements, Inception Amount Recorded During Reporting Period   1,800,000    
Business Combination, Contingent Consideration, Liability, Ending Balance   1,808,000    
Thermax [Member]        
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability   47,000    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Business Combination, Contingent Consideration Arrangements, Inception Amount Recorded During Reporting Period   $ 1,808,000   $ 1,761,000