Goodwill and Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

	Commercial				Infrastructure
	& Industrial			Communications	Solutions		Residential		Total
Balance at September 30, 2016	$	3,806	$	-	$	27,499	$	8,631	$	39,936
Acquisitions "Note 18"		3,411		-		3,710		-		7,121
Divestitures "Note 18"		-		-		(51)		-		(51)
Purchase Accounting Adjustments		(41)		-		(272)		-		(313)
Balance at September 30, 2017		7,176		-		30,886		8,631		46,693
Acquisitions "Note 18"		-		2,892		-		1,348		4,240
Purchase Accounting Adjustments		(200)		(76)		45		-		(231)
Balance at September 30, 2018	$	6,976	$	2,816	$	30,931	$	9,979	$	50,702

Schedule Of Intangible Assets And Goodwill [Table Text Block]

		September 30, 2018
	Estimated
	Useful Lives		Gross Carrying		Accumulated
	(in Years)		Amount		Amortization	Net
Trademarks/trade names	5 - 20	$	5,084	$	831	$	4,253
Technical library	20		400		101		299
Customer relationships	6 - 15		33,539		7,870		25,669
Non-competition arrangements	5		40		1		39
Backlog	1		378		176		202
Construction contracts	1		2,184		2,056		128
Total		$	41,625	$	11,035	$	30,590

		September 30, 2017
	Estimated
	Useful Lives		Gross Carrying		Accumulated
	(in Years)		Amount		Amortization	Net
Trademarks/trade names	5 - 20	$	4,643	$	440	$	4,203
Technical library	20		400		81		319
Customer relationships	6 - 15		31,115		4,741		26,374
Non-competition arrangements	5		-		-		-
Backlog	1		2,412		2,130		282
Construction contracts	1		2,399		2,164		235
Total		$	40,969	$	9,556	$	31,413

Schedule Of Finite Lived Intangible Assets Future Amortization Expense [Table Text Block]

Year Ended September 30,
2019	$	3,944
2020		3,247
2021		3,515
2022		3,157
2023		2,780
Thereafter		13,947
Total	$	30,590