Operating Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2013
Segment Reporting Information [Line Items]
Revenues	$ 120,079	$ 127,264
Cost of Services	101,963	109,284
Gross Profit	18,116	17,980
Selling, General and Administrative Expense	17,572	14,922
Loss (gain) on sale of assets	(41)	(19)
Operating Income (Loss)	585	3,077
Depreciation and amortization	617	539
Capital Expenditures	236	80
Assets	165,222	165,158	179,252
Communications [Member]
Segment Reporting Information [Line Items]
Revenues	24,591	40,119
Cost of Services	20,659	32,887
Gross Profit	3,932	7,232
Selling, General and Administrative Expense	2,982	3,558
Loss (gain) on sale of assets	0	1
Operating Income (Loss)	950	3,673
Depreciation and amortization	100	87
Capital Expenditures	7	41
Assets	22,006	34,072
Residential
Segment Reporting Information [Line Items]
Revenues	41,212	36,005
Cost of Services	33,794	29,899
Gross Profit	7,418	6,106
Selling, General and Administrative Expense	6,481	5,228
Loss (gain) on sale of assets	(40)	(9)
Operating Income (Loss)	977	887
Depreciation and amortization	123	95
Capital Expenditures	5	26
Assets	34,670	31,914
Commercial & Industrial [Member]
Segment Reporting Information [Line Items]
Revenues	41,230	51,140
Cost of Services	37,316	46,498
Gross Profit	3,914	4,642
Selling, General and Administrative Expense	3,480	3,736
Loss (gain) on sale of assets	(4)	(11)
Operating Income (Loss)	438	917
Depreciation and amortization	67	57
Capital Expenditures	55	13
Assets	46,372	54,436
Infrastructure Solutions [Member]
Segment Reporting Information [Line Items]
Revenues	13,046	0
Cost of Services	10,194	0
Gross Profit	2,852	0
Selling, General and Administrative Expense	2,387	0
Loss (gain) on sale of assets	3	0
Operating Income (Loss)	462	0
Depreciation and amortization	242	0
Capital Expenditures	54	0
Assets	27,817	0
Corporate
Segment Reporting Information [Line Items]
Revenues	0	0
Cost of Services	0	0
Gross Profit	0	0
Selling, General and Administrative Expense	2,242	2,400
Loss (gain) on sale of assets	0	0
Operating Income (Loss)	(2,242)	(2,400)
Depreciation and amortization	85	300
Capital Expenditures	115	0
Assets	$ 34,357	$ 44,736