Purchase of interest in Aerex Industries, Inc. (Details 2) - Aerex Industries Inc [Member]	Feb. 11, 2016 USD ($)
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 5,900,000
Trade name [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 1,400,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Non-compete agreement [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 400,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Certifications/programs [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 2,000,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 years
Customer backlog [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 100,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	1 year
Customer relationships [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 2,000,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	4 years