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Operation Segments (Tables)

12 Months Ended

Sep. 30, 2016

Operating Segments [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

		Years Ended September 30, 2016
									Commercial &			Infrastructure
			Communications			Residential			Industrial			Solutions			Corporate			Total
Revenues			$	189,635		$	225,889		$	222,466		$	58,003		$	-		$	695,993
Cost of services				157,104			171,874			197,679			42,356			-			569,013
Gross profit				32,531			54,015			24,787			15,647			-			126,980
Selling, general and administrative				20,839			37,585			17,169			12,404			12,561			100,558
Contingent consideration				-			-			-			652			-			652
Loss (gain) on sale of assets				-			1			(17)			826			-			810
Income (loss) from operations			$	11,692		$	16,429		$	7,635		$	1,765		$	(12,561)		$	24,960
Other data:
	Depreciation and amortization expense		$	577		$	509		$	1,234		$	3,072		$	272		$	5,664
	Capital expenditures			1,102			704			795			721			95			3,417
	Total assets		$	68,018		$	43,195		$	59,763		$	89,447		$	133,917		$	394,340

		Years Ended September 30, 2015
									Commercial &			Infrastructure
			Communications			Residential			Industrial			Solutions			Corporate			Total
Revenues			$	141,858		$	206,307		$	178,865		$	46,827		$	-		$	573,857
Cost of services				116,015			164,435			157,322			36,194			-			473,966
Gross profit				25,843			41,872			21,543			10,633			-			99,891
Selling, general and administrative				15,735			31,877			15,027			9,498			9,279			81,416
Loss (gain) on sale of assets				(18)			4			(11)			12			-			(13)
Income (loss) from operations			$	10,126		$	9,991		$	6,527		$	1,123		$	(9,279)		$	18,488
Other data:
	Depreciation and amortization expense		$	512		$	485		$	283		$	952		$	277		$	2,509
	Capital expenditures			675			352			391			1,197			164			2,779
	Total assets		$	49,500		$	37,755		$	44,156		$	30,112		$	64,156		$	225,679

		Years Ended September 30, 2014
									Commercial &			Infrastructure
			Communications			Residential			Industrial			Solutions			Corporate			Total
Revenues			$	116,073		$	182,514		$	166,249		$	47,559		$	-		$	512,395
Cost of services				94,904			148,685			148,081			37,599			-			429,269
Gross profit				21,169			33,829			18,168			9,960			-			83,126
Selling, general and administrative				13,481			27,947			14,479			9,346			10,318			75,571
Loss (gain) on sale of assets				6			4			(46)			(50)			-			(86)
Income (loss) from operations			$	7,682		$	5,878		$	3,735		$	664		$	(10,318)		$	7,641
Other data:
	Depreciation and amortization expense		$	414		$	491		$	270		$	980		$	371		$	2,526
	Capital expenditures			331			420			266			828			137			1,982
	Total assets		$	30,415		$	40,555		$	43,937		$	27,272		$	57,771		$	199,950

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- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8813-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8721-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8736-108599

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- References

No definition available.

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