XML 51 R41.htm IDEA: XBRL DOCUMENT v3.8.0.1
Sale of Microelectronics Product Line (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Apr. 27, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]          
Gain on sale of product line $ 0 $ 0 $ 0 $ 6,657  
Microelectronics Product Line | Disposal Group, Disposed of by Sale, Not Discontinued Operations          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]          
Sale of microelectronics product line, transaction purchase price         $ 21,000
Sale of microelectronics product line, escrow holdback         $ 1,500
Gain on sale of product line       $ 6,700