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Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2009
Cash flows from operating activities:      
Net income $ 12,211 $ 7,371 $ 3,753
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation, depletion and amortization 12,210 11,507 13,432
Deferred income taxes 491 [1] 683 235
Equity in loss of joint venture 39 2 6
(Gain) on sale of equipment and real estate (363) (325) (1,020)
(Income) from discontinued operations, net (5,222) (315) 4,155
Stock-based compensation 704 804 868
Net changes in operating assets and liabilities:      
Accounts receivable (762) (654) 4,548
Inventory of parts and supplies (456) (49) 197
Prepaid expenses and other current assets (131) 91 733
Other assets (125) (1,052) (155)
Accounts payable and accrued liabilities 1,290 (53) (4,612)
Income taxes payable and receivable 1,140 [1] (3,285) 2,355
Long-term insurance liabilities and other long-term liabilities 217 (335) (154)
Net cash provided by operating activities of continuing operations 21,243 14,390 24,341
Net cash (used in) provided by operating activities of discontinued operations (642) (1,041) 632
Net cash provided by operating activities 20,601 13,349 24,973
Cash flows from investing activities:      
Purchase of transportation group property and equipment (6,743) (6,568) (3,298)
Investments in mining royalty land segment 0 (59) (14)
Investments in developed property rentals segment (11,129) [1] (4,076) (10,812)
Investment in joint venture (114) (495) (475)
Proceeds from the sale of property, plant and equipment 763 833 1,181
Proceeds received on note for sale of SunBelt 5,620 1,185 0
Net cash used in investing activities of continuing operations (11,603) (9,180) (13,418)
Net cash provided by investing activities of discontinued operations 0 0 38 [2]
Net cash used in investing activities (11,603) (9,180) (13,380)
Cash flows from financing activities:      
Repayment of long-term debt (4,588) (4,293) (4,019)
Repurchase of Company Stock (1,395) 0 0
Excess tax benefits from exercises of stock options and vesting of restricted stock 322 740 80
Exercise of employee stock options 538 732 371
Net cash used in financing activities (5,123) (2,821) (3,568)
Net increase in cash and cash equivalents 3,875 1,348 8,025
Cash and cash equivalents at beginning of period 17,151 15,803 7,778
Cash and cash equivalents at end of the period 21,026 17,151 15,803
Supplemental disclosures of cash flow information:      
Cash paid during the year for interest, net of capitalized amounts 3,346 3,928 3,482
Cash paid during the year for income taxes $ 2,411 $ 6,043 $ 4,077
[1] The Company recorded a non-cash transaction from an exchange of real estate of $4,941 in December 2010 along with a related deferred tax liability of $1,792 and a $2,126 permanent tax benefit on the value of donated minerals and aggregates which was recorded as a $303 receivable and $1,823 deferred tax.
[2] The Company recorded a non-cash transaction for notes receivable from the sale of its flatbed trucking company, Sunbelt Transport, Inc. for $6,890 in August 2009.