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Acquisitions (Details 1) - USD ($)
9 Months Ended
Sep. 30, 2017
Aug. 31, 2017
Apr. 01, 2017
Feb. 01, 2017
Business Acquisition [Line Items]        
2017 $ 5,967,000      
2018 11,132,000      
2019-2020 8,000,000      
Total 25,099,000      
Beginning Liability 5,258,000      
Additions 5,613,000      
Payments (967,000)      
Change in Fair Value of Contingent Consideration (369,000)      
Foreign Currency Translation 33,000      
Ending Liability 9,568,000      
CLS        
Business Acquisition [Line Items]        
2017 0      
2018 2,132,000      
2019-2020 0      
Total 2,132,000 $ 2,100,000    
Beginning Liability 0      
Additions 888,000      
Payments 0      
Change in Fair Value of Contingent Consideration 7,000      
Foreign Currency Translation 33,000      
Ending Liability 928,000      
Maverick        
Business Acquisition [Line Items]        
2017 5,000,000      
2018 5,000,000      
2019-2020 0      
Total 10,000,000      
Beginning Liability 5,258,000      
Additions 0      
Payments 0      
Change in Fair Value of Contingent Consideration 775,000      
Foreign Currency Translation 0      
Ending Liability 6,033,000      
McKinney Rogers        
Business Acquisition [Line Items]        
2017 967,000      
2018 4,000,000      
2019-2020 8,000,000      
Total 12,967,000     $ 18,000,000
Beginning Liability 0      
Additions 4,505,000      
Payments (967,000)      
Change in Fair Value of Contingent Consideration (1,156,000)      
Foreign Currency Translation 0      
Ending Liability 2,382,000      
Emantras        
Business Acquisition [Line Items]        
Total     $ 300,000  
Beginning Liability 0      
Additions 220,000      
Payments 0      
Change in Fair Value of Contingent Consideration 5,000      
Foreign Currency Translation 0      
Ending Liability 225,000      
Minimum | CLS        
Business Acquisition [Line Items]        
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low 0      
Minimum | Maverick        
Business Acquisition [Line Items]        
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low 0      
Minimum | McKinney Rogers        
Business Acquisition [Line Items]        
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low 0      
Maximum | CLS        
Business Acquisition [Line Items]        
Total 2,132,000      
Maximum | Maverick        
Business Acquisition [Line Items]        
Total 10,000,000      
Maximum | McKinney Rogers        
Business Acquisition [Line Items]        
Total $ 18,000,000