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Operation Segments (Tables) | 9 Months Ended
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Jun. 30, 2013
Operating Segments [Abstract] |
Schedule of Segment Reporting Information, by Segment |
|  | Three Months Ended June 30, 2013
|  |  |  |  |  |  |  |  | Commercial & |  |  |  |  |  |
|  |  | Communications |  | Residential |  | Industrial |  | Corporate |  | Total
Revenues |  | $ | 24,161 |  | $ | 44,511 |  | $ | 52,880 |  | $ | - |  | $ | 121,552
Cost of services |  |  | 19,737 |  |  | 37,400 |  |  | 48,762 |  |  | - |  |  | 105,899
Gross profit |  |  | 4,424 |  |  | 7,111 |  |  | 4,118 |  |  | - |  |  | 15,653
Selling, general and administrative |  |  | 3,373 |  |  | 6,812 |  |  | 3,600 |  |  | 2,791 |  |  | 16,576
Loss (gain) on sale of assets |  |  | - |  |  | - |  |  | (16) |  |  | - |  |  | (16)
Income (loss) from operations |  | $ | 1,051 |  | $ | 299 |  | $ | 534 |  | $ | (2,791) |  | $ | (907)
Other data: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Depreciation and amortization expense |  | $ | 94 |  | $ | 340 |  | $ | 66 |  | $ | 295 |  | $ | 795
| Capital expenditures |  |  | 117 |  |  | 135 |  |  | 96 |  |  | - |  |  | 348
| Total assets |  | $ | 22,058 |  | $ | 40,450 |  | $ | 54,237 |  | $ | 34,728 |  | $ | 151,473
|  | Three Months Ended June 30, 2012
|  |  |  |  |  |  |  |  | Commercial & |  |  |  |  |  |
|  |  | Communications |  | Residential |  | Industrial |  | Corporate |  | Total
Revenues |  | $ | 31,068 |  | $ | 35,232 |  | $ | 49,828 |  | $ | - |  | $ | 116,128
Cost of services |  |  | 26,839 |  |  | 29,655 |  |  | 45,378 |  |  | - |  |  | 101,872
Gross profit |  |  | 4,229 |  |  | 5,577 |  |  | 4,450 |  |  | - |  |  | 14,256
Selling, general and administrative |  |  | 4,219 |  |  | 5,163 |  |  | 3,788 |  |  | 1,786 |  |  | 14,956
Loss (gain) on sale of assets |  |  | - |  |  | 1 |  |  | (10) |  |  | - |  |  | (9)
Income (loss) from operations |  | $ | 10 |  | $ | 413 |  | $ | 672 |  | $ | (1,786) |  | $ | (691)
Other data: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Depreciation and amortization expense |  | $ | 66 |  | $ | 99 |  | $ | 50 |  | $ | 303 |  | $ | 518
| Capital expenditures |  | $ | - |  | $ | 286 |  | $ | 49 |  | $ | 15 |  | $ | 350
| Total assets |  | $ | 34,240 |  | $ | 29,201 |  | $ | 63,465 |  | $ | 45,199 |  | $ | 172,105
|  | Nine Months Ended June 30, 2013
|  |  |  |  |  |  |  |  | Commercial & |  |  |  |  |  |
|  |  | Communications |  | Residential |  | Industrial |  | Corporate |  | Total
Revenues |  | $ | 96,085 |  | $ | 119,860 |  | $ | 154,865 |  | $ | - |  | $ | 370,810
Cost of services |  |  | 78,599 |  |  | 99,863 |  |  | 142,720 |  |  | - |  |  | 321,182
Gross profit |  |  | 17,486 |  |  | 19,997 |  |  | 12,145 |  |  | - |  |  | 49,628
Selling, general and administrative |  |  | 10,232 |  |  | 18,452 |  |  | 10,945 |  |  | 8,475 |  |  | 48,104
Loss (gain) on sale of assets |  |  | - |  |  | (21) |  |  | (35) |  |  | - |  |  | (56)
Income (loss) from operations |  | $ | 7,254 |  | $ | 1,566 |  | $ | 1,235 |  | $ | (8,475) |  | $ | 1,580
Other data: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Depreciation and amortization expense |  | $ | 273 |  | $ | 607 |  | $ | 182 |  | $ | 894 |  | $ | 1,956
| Capital expenditures |  |  | 223 |  |  | 185 |  |  | 247 |  |  | - |  |  | 655
| Total assets |  | $ | 22,058 |  | $ | 40,450 |  | $ | 54,237 |  | $ | 34,728 |  | $ | 151,473
|  | Nine Months Ended June 30, 2012
|  |  |  |  |  |  |  |  | Commercial & |  |  |  |  |  |
|  |  | Communications |  | Residential |  | Industrial |  | Corporate |  | Total
Revenues |  | $ | 84,660 |  | $ | 94,132 |  | $ | 153,942 |  | $ | - |  | $ | 332,734
Cost of services |  |  | 72,809 |  |  | 79,376 |  |  | 139,311 |  |  | - |  |  | 291,496
Gross profit |  |  | 11,851 |  |  | 14,756 |  |  | 14,631 |  |  | - |  |  | 41,238
Selling, general and administrative |  |  | 10,094 |  |  | 14,109 |  |  | 12,396 |  |  | 5,449 |  |  | 42,048
Loss (gain) on sale of assets |  |  | (61) |  |  | 8 |  |  | (112) |  |  | - |  |  | (165)
Income (loss) from operations |  | $ | 1,818 |  | $ | 639 |  | $ | 2,347 |  | $ | (5,449) |  | $ | (645)
Other data: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Depreciation and amortization expense |  | $ | 183 |  | $ | 271 |  | $ | 190 |  | $ | 893 |  | $ | 1,537
| Capital expenditures |  | $ | 260 |  | $ | 554 |  | $ | 54 |  | $ | 876 |  | $ | 1,744
| Total assets |  | $ | 34,240 |  | $ | 29,201 |  | $ | 63,465 |  | $ | 45,199 |  | $ | 172,105

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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 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: 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=6534315&loc=d3e8906-108599 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=6534315&loc=d3e8721-108599 Reference 4: 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=6534315&loc=d3e8736-108599 Reference 5: 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=6534315&loc=d3e8813-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 27, 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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