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Property And Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2015
Property And Equipment [Abstract]      
Depreciation $ 3,840 $ 2,727 $ 2,128
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 51,952 40,821  
Accumulated Depreciation (27,862) (25,307)  
Construction in Progress 553 180  
Property, Plant and Equipment, Net, Total 24,643 15,694  
Land [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 1,076 876  
Building an Building Improvement [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 11,675 6,457  
Building an Building Improvement [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated Useful Life 5 years    
Building an Building Improvement [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated Useful Life 20 years    
Machinery and Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 23,190 18,215  
Machinery and Equipment [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated Useful Life 3 years    
Machinery and Equipment [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated Useful Life 10 years    
Technology Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 14,318 14,301  
Technology Equipment [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated Useful Life 2 years    
Technology Equipment [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated Useful Life 8 years    
Furniture and Fixtures [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 1,693 $ 972  
Furniture and Fixtures [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated Useful Life 5 years    
Furniture and Fixtures [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Estimated Useful Life 7 years