Quarterly report pursuant to Section 13 or 15(d)

Acquisitions (Schedule of Allocation of purchase price consideration) (Details)

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Acquisitions (Schedule of Allocation of purchase price consideration) (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Jun. 30, 2018
Allocation of purchase price consideration (in thousands):    
Goodwill $ 43,993 $ 37,061
Tri-State Technical Services [Member]    
Allocation of purchase price consideration (in thousands):    
Accounts receivable 2,753  
Inventory 1,595  
Other assets 99  
Property, plant and equipment 372  
Intangible assets 3,100  
Accounts payable and accrued expenses (509)  
Customer deposits (398)  
Total identifiable net assets 7,012  
Goodwill 6,135  
Total $ 13,147