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Noncontrolling Interest (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Noncontrolling Interest [Line Items] |  |  |  |
Capital contributions to joint venture | $ 0 |  | $ 0 |
Net income attributable to noncontrolling interest | 106,000 | $ 2,000 | (1,476,000) | $ 2,000
Huen Electric Inc [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Distributions to partners | $ 0 |  | $ 0 |

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