Operation Segments (Tables)

6 Months Ended

Mar. 31, 2014

Operating Segments [Abstract]

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

		Three Months Ended March 31, 2014
							Commercial &		Infrastructure
			Communications		Residential		Industrial		Solutions		Corporate		Total
Revenues			$	25,147	$	42,181	$	42,336	$	10,602	$	-	$	120,266
Cost of services				21,006		34,529		36,484		8,221		-		100,240
Gross profit				4,141		7,652		5,852		2,381		-		20,026
Selling, general and administrative				3,163		6,932		4,243		2,295		2,539		19,172
Loss (gain) on sale of assets				-		(1)		(21)		-		-		(22)
Income (loss) from operations			$	978	$	721	$	1,630	$	86	$	(2,539)	$	876
Other data:
	Depreciation and amortization expense		$	102	$	118	$	66	$	217	$	117	$	620
	Capital expenditures			55		158		40		235		-		488
	Total assets		$	25,010	$	36,170	$	45,169	$	27,611	$	36,383	$	170,343

		Three Months Ended March 31, 2013
							Commercial &		Infrastructure
			Communications		Residential		Industrial		Solutions		Corporate		Total
Revenues			$	31,806	$	39,344	$	50,845	$	-	$	-	$	121,995
Cost of services				25,975		32,564		47,460		-		-		105,999
Gross profit				5,831		6,780		3,385		-		-		15,996
Selling, general and administrative				3,301		6,412		3,609		-		3,284		16,606
Loss (gain) on sale of assets				-		(12)		(9)		-		-		(21)
Income (loss) from operations			$	2,530	$	380	$	(215)	$	-	$	(3,284)	$	(589)
Other data:
	Depreciation and amortization expense		$	92	$	89	$	59	$	-	$	299	$	539
	Capital expenditures			130		68		97		-		-		295
	Total assets		$	25,366	$	38,714	$	53,531	$	-	$	35,642	$	153,253

		Six Months Ended March 31, 2014
							Commercial &		Infrastructure
			Communications		Residential		Industrial		Solutions		Corporate		Total
Revenues			$	49,738	$	83,393	$	83,565	$	23,649	$	-	$	240,345
Cost of services				41,665		68,323		73,799		18,415		-		202,202
Gross profit				8,073		15,070		9,766		5,234		-		38,143
Selling, general and administrative				6,145		13,414		7,722		4,683		4,780		36,744
Loss (gain) on sale of assets				-		(41)		(24)		3		-		(62)
Income (loss) from operations			$	1,928	$	1,697	$	2,068	$	548	$	(4,780)	$	1,461
Other data:
	Depreciation and amortization expense		$	201	$	241	$	133	$	484	$	203	$	1,262
	Capital expenditures			63		163		95		277		115		713
	Total assets		$	25,010	$	36,170	$	45,169	$	27,611	$	36,383	$	170,343

		Six Months Ended March 31, 2013
							Commercial &		Infrastructure
			Communications		Residential		Industrial		Solutions		Corporate		Total
Revenues			$	71,925	$	75,349	$	101,985	$	-	$	-	$	249,259
Cost of services				58,862		62,463		93,958		-		-		215,283
Gross profit				13,063		12,886		8,027		-		-		33,976
Selling, general and administrative				6,860		11,640		7,345		-		5,683		31,528
Loss (gain) on sale of assets				-		(21)		(19)		-		-		(40)
Income (loss) from operations			$	6,203	$	1,267	$	701	$	-	$	(5,683)	$	2,488
Other data:
	Depreciation and amortization expense		$	179	$	185	$	115	$	-	$	599	$	1,078
	Capital expenditures			171		94		110		-		-		375
	Total assets		$	25,366	$	38,714	$	53,531	$	-	$	35,642	$	153,253