Noncontrolling Interest - Narrative (Details) - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Capital contributions to joint venture	$ 0
Net income attributable to noncontrolling interest	(733,000)	$ 0
Huen Electric Inc [Member]
Distributions to partners	$ 0

Amount of Net Income (Loss) attributable to noncontrolling interest.

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