Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Revenues	$ 215,085	$ 185,627	$ 160,714
Cost of Revenues	128,131	119,477	113,863
Gross Profit	86,954	66,150	46,851
Operating Expenses	45,865	39,066	35,895
Environmental Remediation Charges		700	6,000
Other Operating Gains		1,714	2,929
Operating Income	41,089	28,098	7,885
Interest and Other Income	118	38	235
Interest Expense	2,996	10,173	10,514
Loss on Debt Extinguishment	2,835	1,397
Income (Loss) from Continuing Operations before Income Tax	35,376	16,566	(2,394)
Income Tax Expense (Benefit)	12,243	(3,766)	6,985
Income (Loss) from Continuing Operations	23,133	20,332	(9,379)
Income from Discontinued Operations, Net of Tax	99	4,987	2,143
Net Income (Loss)	$ 23,232	$ 25,319	$ (7,236)
Basic Earnings (Loss) Per Share:
Income (Loss) from Continuing Operations	$ 2.98	$ 2.69	$ (1.25)
Income from Discontinued Operations, Net of Tax	$ 0.01	$ 0.66	$ 0.29
Net Income (Loss)	$ 2.99	$ 3.35	$ (0.96)
Diluted Earnings (Loss) Per Share:
Income (Loss) from Continuing Operations	$ 2.86	$ 2.65	$ (1.25)
Income from Discontinued Operations, Net of Tax	$ 0.01	$ 0.65	$ 0.29
Net Income (Loss)	$ 2.87	$ 3.30	$ (0.96)
Weighted-Average Shares Outstanding:
Basic	7,772,000	7,554,000	7,517,000
Diluted	8,101,000	7,663,000	7,517,000