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Operation Segments (Tables)

12 Months Ended

Sep. 30, 2017

Operating Segments [Abstract]

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

		Years Ended September 30, 2017
			Commercial &						Infrastructure
			Industrial			Communications			Solutions			Residential			Corporate			Total
Revenues			$	227,606		$	225,275		$	83,824		$	274,039		$	-		$	810,744
Cost of services				208,619			187,419			63,399			210,809			-			670,246
Gross profit				18,987			37,856			20,425			63,230			-			140,498
Selling, general and administrative				20,170			24,219			17,859			43,689			14,433			120,370
Contingent consideration				-			-			(145)			-			-			(145)
Loss (gain) on sale of assets				(32)			(1)			(79)			43			-			(69)
Income (loss) from operations			$	(1,151)		$	13,638		$	2,790		$	19,498		$	(14,433)		$	20,342
Other data:
	Depreciation and amortization expense		$	1,648		$	740		$	6,412		$	565		$	269		$	9,634
	Capital expenditures		$	1,241		$	2,046		$	538		$	561		$	203		$	4,589
	Total assets		$	84,757		$	63,917		$	106,114		$	51,994		$	117,712		$	424,494

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

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

X

- 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=68060357&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=68060357&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=68060357&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=68060357&loc=d3e8736-108599

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- References

No definition available.

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