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Discontinued Operations - Schedule of Current and Long Term Accrued Environmental Liability (Details) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Current Accrual | $ 817,000 |
Long-term Accrual | 110,000 |
Total | 927,000 | $ 887,000
PFD [Member] |  |
Current Accrual | 41,000 |
Long-term Accrual | 60,000 |
Total | 101,000 |
PFM [Member] |  |
Current Accrual | 50,000 |
Long-term Accrual | 15,000 |
Total | 65,000 |
PFSG [Member] |  |
Current Accrual | 726,000 |
Long-term Accrual | 35,000 |
Total | $ 761,000 |

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