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Discontinued Operations (Details Textual) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Discontinued Operations (Textual)          
Non-cash operating amounts for discontinued operations depreciation $ 0 $ 49,000 $ 6,000 $ 97,000  
EPC [Member]          
Discontinued Operations (Textual)          
Loss on abandoned assets         $ 386,000
ECC [Member]          
Discontinued Operations (Textual)          
Goodwill         $ 109,000