Goodwill and Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

			Commercial &		Infrastructure
	Residential		Industrial		Solutions		Total
Goodwill at September 30, 2016	$	8,631	$	3,806	$	27,499	$	39,936
Acquisitions (See Note 13)		-		-		3,820		3,820
Purchase Accounting Adjustments		-		-		(272)		(272)
Goodwill at March 31, 2017	$	8,631	$	3,806	$	31,047	$	43,484

Schedule Of Intangible Assets And Goodwill [Table Text Block]

		March 31, 2017
	Estimated
	Useful Lives		Gross Carrying		Accumulated
	(in Years)		Amount		Amortization	Net
Trademarks/trade names	5 - 20	$	4,104	$	271	$	3,833
Technical library	20		400		71		329
Customer relationships	6 - 15		28,614		3,325		25,289
Developed technology	4		400		400		-
Backlog	1		2,151		1,133		1,018
Construction contracts	1		2,191		1,620		571
Total		$	37,860	$	6,820	$	31,040

		September 30, 2016
	Estimated
	Useful Lives		Gross Carrying		Accumulated
	(in Years)		Amount		Amortization	Net
Trademarks/trade names	5 - 20	$	3,845	$	139	$	3,706
Technical library	20		400		61		339
Customer relationships	6 - 15		27,414		2,003		25,411
Developed technology	4		400		358		42
Backlog	1		1,621		545		1,076
Construction contracts	1		2,191		1,042		1,149
Total		$	35,871	$	4,148	$	31,723