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Operating Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Sep. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | $ 208,323 | $ 179,599 | $ 604,163 | $ 490,347 |
Cost of Services | 172,925 | 145,602 | 501,769 | 400,905 |
Gross Profit | 35,398 | 33,997 | 102,394 | 89,442 |
Selling, General and Administrative Expense | 30,771 | 25,716 | 89,085 | 72,494 |
Contingent Consideration Expense | (33) | 66 | 50 | 332 |
Loss (gain) on sale of assets | (55) | 34 | (68) | 811 |
Operating Income | 4,715 | 8,181 | 13,327 | 15,805 |
Depreciation and amortization | 2,506 | 1,656 | 6,884 | 3,503 |
Capital Expenditures | 905 | 1,072 | 3,796 | 2,156 |
Assets | 417,157 | 277,523 | 417,157 | 277,523 | $ 394,340
Communications [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 57,081 | 48,702 | 172,058 | 128,813 |
Cost of Services | 46,958 | 40,487 | 144,668 | 105,855 |
Gross Profit | 10,123 | 8,215 | 27,390 | 22,958 |
Selling, General and Administrative Expense | 6,252 | 5,185 | 18,086 | 14,877 |
Loss (gain) on sale of assets | 0 | 0 | (1) | 0 |
Operating Income | 3,871 | 3,030 | 9,305 | 8,081 |
Depreciation and amortization | 187 | 153 | 532 | 410 |
Capital Expenditures | 328 | 122 | 1,888 | 685 |
Assets | 70,427 | 53,711 | 70,427 | 53,711 |
Residential [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 70,162 | 56,867 | 204,527 | 162,381 |
Cost of Services | 54,307 | 43,388 | 157,370 | 124,459 |
Gross Profit | 15,855 | 13,479 | 47,157 | 37,922 |
Selling, General and Administrative Expense | 11,003 | 9,237 | 32,488 | 26,856 |
Loss (gain) on sale of assets | 37 | 0 | 34 | 0 |
Operating Income | 4,815 | 4,242 | 14,635 | 11,066 |
Depreciation and amortization | 135 | 122 | 436 | 364 |
Capital Expenditures | 170 | 393 | 517 | 537 |
Assets | 51,995 | 40,008 | 51,995 | 40,008 |
Commercial & Industrial [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 58,778 | 59,512 | 168,006 | 158,923 |
Cost of Services | 54,174 | 51,882 | 154,628 | 141,237 |
Gross Profit | 4,604 | 7,630 | 13,378 | 17,686 |
Selling, General and Administrative Expense | 4,849 | 4,771 | 14,434 | 13,014 |
Loss (gain) on sale of assets | (4) | (17) | (11) | (17) |
Operating Income | (241) | 2,876 | (1,045) | 4,689 |
Depreciation and amortization | 329 | 410 | 983 | 845 |
Capital Expenditures | 283 | 377 | 927 | 563 |
Assets | 66,190 | 58,559 | 66,190 | 58,559 |
Infrastructure Solutions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 22,302 | 14,518 | 59,572 | 40,230 |
Cost of Services | 17,486 | 9,845 | 45,103 | 29,354 |
Gross Profit | 4,816 | 4,673 | 14,469 | 10,876 |
Selling, General and Administrative Expense | 4,958 | 3,248 | 13,280 | 9,062 |
Contingent Consideration Expense | (33) | 66 | 50 | 332 |
Loss (gain) on sale of assets | (88) | 51 | (90) | 828 |
Operating Income | (21) | 1,308 | 1,229 | 654 |
Depreciation and amortization | 1,785 | 897 | 4,730 | 1,674 |
Capital Expenditures | 124 | 109 | 261 | 300 |
Assets | 103,323 | 92,559 | 103,323 | 92,559 |
Corporate [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 0 | 0 | 0 | 0 |
Cost of Services | 0 | 0 | 0 | 0 |
Gross Profit | 0 | 0 | 0 | 0 |
Selling, General and Administrative Expense | 3,709 | 3,275 | 10,797 | 8,685 |
Loss (gain) on sale of assets | 0 | 0 | 0 | 0 |
Operating Income | (3,709) | (3,275) | (10,797) | (8,685) |
Depreciation and amortization | 70 | 74 | 203 | 210 |
Capital Expenditures | 0 | 71 | 203 | 71 |
Assets | $ 125,222 | $ 32,686 | $ 125,222 | $ 32,686 |

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