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Goodwill and Intangible Assets (Tables)

9 Months Ended

Jun. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

					Commercial &				Infrastructure
		Residential			Industrial				Solutions			Total
Goodwill at September 30, 2015		$	8,631		$	-			$	8,618		$	17,249
Acquisitions "Note 13"			-			3,676				19,281			22,957
Divestitures "Note 13"			-			-				(577)			(577)
Goodwill at June 30, 2016		$	8,631		$	3,676			$	27,322		$	39,629

Schedule Of Intangible Assets And Goodwill [Table Text Block]

					June 30, 2016
			Estimated
			Useful Lives			Gross Carrying			Accumulated
			(in Years)			Amount			Amortization		Net
Trademarks/trade names			8 - Indefinite		$	3,845		$	80		$	3,765
Technical library			20			400			56			344
Customer relationships			8 - 15			27,314			1,487			25,827
Covenants not to compete			3			140			140			-
Developed technology			4			400			333			67
Backlog			1			1,571			257			1,314
Construction contracts			1			2,191			555			1,636
Total					$	35,861		$	2,908		$	32,953

					September 30, 2015
			Estimated
			Useful Lives			Gross Carrying			Accumulated
			(in Years)			Amount			Amortization		Net
Trademarks/trade names			8 - Indefinite		$	1,400		$	9		$	1,391
Technical library			20			400			41			359
Customer relationships			8 - 12			3,600			788			2,812
Covenants not to compete			3			140			121			19
Developed technology			4			400			258			142
Total					$	5,940		$	1,217		$	4,723