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Discontinued Operations Statements of Operations (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2015
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
Loss on disposal, net of tax $ (168)
Loss from discontinued operations (168)
Gain (loss) on disposal from working capital and other adjustments (132)
Transaction costs related to Wiring sale 46
Wiring [Member]  
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
Loss on disposal (178) [1]
Income tax expense on loss on disposal 10
Loss on disposal, net of tax (168)
Loss from discontinued operations $ (168)
[1] Included in loss on disposal for the three months ended March 31, 2015 were transaction costs of $46 and a working capital adjustment of $132.