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Discontinued Operations (Statements of Operations) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Gain (Loss) on disposal, net of tax   $ (226)
Loss from discontinued operations $ (113) (226)
Working capital and other adjustments 24 38
Transaction costs related to Wiring sale 94 192
Wiring [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Gain (Loss) on disposal [1] (118) (230)
Income tax expense on loss on disposal 5 4
Loss from discontinued operations $ (113) $ (226)
[1] The loss on disposal for the three and nine months ended September 30, 2015 included transaction costs of $94 and $192, respectively. The loss on disposal also included a working capital and other adjustments of $24 and $38 for the three and nine months ended September 30, 2015, respectively.