Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 5,394		$ 3,767
Adjustments to reconcile net income to net cash provided by continuing operating activities:
Depreciation, depletion and amortization	6,738		6,306
Deferred income taxes	1,545		936
Equity in loss of joint venture	19		8
Gain on sale of equipment and property	(1,812)		(1,536)
Income from discontinued operations, net	0		(3)
Stock-based compensation	726		547
Net changes in operating assets and liabilities:
Accounts receivable	11	[1]	(9)	[1]
Inventory of parts and supplies	(170)		71
Prepaid expenses and other current assets	1,933		1,815
Other assets	(1,049)		(737)
Accounts payable and accrued liabilities	(3,845)		(1,544)
Income taxes payable and receivable	(161)		(865)
Long-term insurance liabilities and other long-term liabilities	54		(319)
Net cash provided by operating activities of continuing operations	9,383		8,437
Net cash provided by operating activities of discontinued operations	0		7
Net cash provided by operating activities	9,383		8,444
Cash flows from investing activities:
Purchase of transportation group property and equipment	(7,361)		(5,403)
Investments in developed property rentals segment	(5,571)	[1]	(4,046)	[1]
Investment in joint venture	(39)		(70)
Proceeds from the sale of property, plant and equipment	2,677		1,609
Net cash used in investing activities	(10,294)		(7,910)
Cash flows from financing activities:
Repayment of long-term debt	(2,576)		(2,410)
Repurchase of Company Stock	(233)		(137)
Proceeds from borrowing on revolving credit facility	1,000		0
Payment on revolving credit facility	(1,000)		0
Excess tax benefits from exercises of stock options and vesting of restricted stock	539		353
Exercise of employee stock options	995		671
Net cash used in financing activities	(1,275)		(1,523)
Net decrease in cash and cash equivalents	(2,186)		(989)
Cash and cash equivalents at beginning of period	6,713		21,026
Cash and cash equivalents at end of the period	$ 4,527		$ 20,037

[1] The Company recorded non-cash transactions for a receivable on previously capitalized real estate taxes on the Anacostia property of $41 and $2,250 in the first six months fiscal 2013 and 2012 respectively.