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Business Segments - Business segments (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Nov. 07, 2013 | Sep. 30, 2013 | Sep. 30, 2012
Revenues | $ 41,248 | $ 35,708 | $ 119,975 | $ 102,633 |  |  |
Operating profit | 5,730 | 6,070 | 13,000 | 14,786 |  |  |
Interest expense | 438 | 1,137 | 1,095 | 2,145 |  |  |
Capital expenditures (a) | 12,068 | 14,016 | 26,007 | 26,948 |  |  |
Depreciation, depletion and amortization | 4,072 | 3,624 | 12,015 | 10,362 |  |  |
Cash items | 614 | 742 | 614 | 742 |  | 502 | 6,713
Total identifiable net assets | 304,363 |  | 304,363 |  |  | 287,093 |
(a) Capital expenditures related to the Pipeline Transportation, Inc. acquisition |  |  |  |  | 3,397 |  |
Transportation |  |  |  |  |  |  |
Revenues | 33,569 | 28,794 | 97,060 | 82,609 |  |  |
Operating profit | 2,867 | 3,513 | 6,139 | 8,109 |  |  |
Corporate expenses | (422) | (406) | (1,341) | (1,284) |  |  |
Capital expenditures (a) | 2,732 | 3,311 | 11,873 | 10,672 |  |  |
Depreciation, depletion and amortization | 2,225 | 1,865 | 6,549 | 5,445 |  |  |
Identifiable net assets | 60,820 |  | 60,820 |  |  | 49,410 |
(a) Capital expenditures related to the Pipeline Transportation, Inc. acquisition | 3,397 |  | 3,397 |  |  |  |
Mining royalty land |  |  |  |  |  |  |
Revenues | 1,395 | 1,299 | 3,889 | 3,874 |  |  |
Operating profit | 1,241 | 1,156 | 3,437 | 3,457 |  |  |
Corporate expenses | (188) | (176) | (566) | (528) |  |  |
Interest expense | 32 | 15 | 97 | 38 |  |  |
Capital expenditures (a) | 0 | 0 | 0 | 0 |  |  |
Depreciation, depletion and amortization | 36 | 27 | 92 | 75 |  |  |
Identifiable net assets | 39,301 |  | 39,301 |  |  | 40,008 |
Developed property rentals |  |  |  |  |  |  |
Revenues | 6,284 | 5,615 | 19,026 | 16,150 |  |  |
Operating profit | 2,675 | 2,451 | 7,518 | 6,960 |  |  |
Corporate expenses | (284) | (264) | (850) | (792) |  |  |
Interest expense | 406 | 1,122 | 998 | 2,107 |  |  |
Capital expenditures (a) | 8,784 | 9,978 | 12,354 | 13,816 |  |  |
Capital expenditures - Capitalized interest | 360 | 367 | 1,353 | 1,375 |  |  |
Capital expenditures - Internal labor | 146 | 106 | 341 | 324 |  |  |
Capital expenditures - Real estate taxes | 46 | 254 | 86 | 761 |  |  |
Depreciation, depletion and amortization | 1,691 | 1,629 | 5,013 | 4,532 |  |  |
Identifiable net assets | 201,619 |  | 201,619 |  |  | 195,476 |
Corporate |  |  |  |  |  |  |
Corporate expenses | (159) | (204) | (1,337) | (1,136) |  |  |
Depreciation, depletion and amortization | 120 | 103 | 361 | 310 |  |  |
Identifiable net assets | $ 2,009 |  | $ 2,009 |  |  | $ 1,697 |

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