Annual report pursuant to Section 13 and 15(d)

Business Segments (Details)

v3.5.0.2
Business Segments (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Sep. 30, 2015
USD ($)
Jun. 30, 2015
USD ($)
Mar. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Sep. 30, 2016
USD ($)
segment
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Dec. 24, 2014
Segment Reporting Information [Line Items]                        
Number of operating segments | segment                 3      
Net revenue $ 42,409 $ 33,342 $ 22,483 $ 22,074 $ 28,198 $ 40,016 $ 24,273 $ 12,396 $ 120,308 $ 104,883 $ 56,501  
Operating loss                 (7,908) (13,521) (13,089)  
Capital expenditures                 978 610 462  
Depreciation and amortization                 2,974 3,357 2,410  
Identifiable assets 118,430       125,456       118,430 125,456    
Goodwill - Net 11,119       10,535       11,119 10,535    
Solar                        
Segment Reporting Information [Line Items]                        
Capital expenditures                 235 411 282  
Depreciation and amortization                 2,014 2,940 2,236  
Goodwill - Net 5,328       5,344       5,328 5,344    
Semiconductor                        
Segment Reporting Information [Line Items]                        
Capital expenditures                 692 136 110  
Depreciation and amortization                 870 318 40  
Goodwill - Net 5,063       4,463       5,063 4,463    
Polishing                        
Segment Reporting Information [Line Items]                        
Capital expenditures                 51 63 70  
Depreciation and amortization                 90 99 134  
Goodwill - Net 728       728       $ 728 728    
SoLayTec, B.V.                        
Segment Reporting Information [Line Items]                        
Percentage of voting interests acquired                       51.00%
Product Concentration Risk | Sales Revenue, Product Line | Semiconductor                        
Segment Reporting Information [Line Items]                        
Concentration risk, percentage                 25.00%      
Operating Segments | Solar                        
Segment Reporting Information [Line Items]                        
Net revenue                 $ 60,946 56,689 36,069  
Operating loss                 (6,696) (5,056) (11,010)  
Identifiable assets 42,962       45,717       42,962 45,717    
Operating Segments | Semiconductor                        
Segment Reporting Information [Line Items]                        
Net revenue                 50,637 37,250 9,779  
Operating loss                 3,904 (1,268) 851  
Identifiable assets 51,985       46,912       51,985 46,912    
Operating Segments | Polishing                        
Segment Reporting Information [Line Items]                        
Net revenue                 8,725 10,944 10,653  
Operating loss                 1,588 2,250 2,805  
Identifiable assets 4,819       5,793       4,819 5,793    
Corporate, Non-Segment                        
Segment Reporting Information [Line Items]                        
Operating loss                 (6,704) (9,447) $ (5,735)  
Identifiable assets $ 18,664       $ 27,034       $ 18,664 $ 27,034