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Discontinued Operations (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Discontinued Operations and Disposal Groups [Abstract]        
Net revenue $ 4,951,000 $ 3,588,000 $ 11,396,000 $ 10,280,000
Cost of sales 3,935,000 2,988,000 9,269,000 8,033,000
Gross profit 1,016,000 600,000 2,127,000 2,247,000
Operating expenses:        
Selling, general and administrative (298,000) (531,000) (1,033,000) (1,957,000)
Loss on assets held for sale (2,493,000)   (930,000)  
Total Operating expenses (2,791,000) (531,000) (1,963,000) (1,957,000)
Interest income (expense) and financing costs 1,000 (12,000) 1,000 (12,000)
Other Income, net 4,000 5,000 7,000 2,000
Gain (loss)
Loss from discontinued operations before income taxes (1,770,000) 62,000 172,000 280,000
Provision for income taxes
Net income (loss) from discontinued operations $ (1,770,000) $ 62,000 $ 172,000 $ 280,000