Balance Sheets (USD $)	Dec. 31, 2011	Sep. 30, 2011
Current assets:
Cash and cash equivalents	$ 13,415,000	$ 26,077,000
Accounts receivable, net of allowance for doubtful accounts of $250,000 and $155,000 at December 31, 2011 and September 30, 2011, respectively	90,168,000	86,716,000
Prepaid expenses and other assets	5,344,000	4,254,000
Current deferred tax asset	1,206,000	1,236,000
Total current assets	110,133,000	118,283,000
Property, plant and equipment	314,088,000	302,647,000
Less accumulated depreciation	(163,189,000)	(156,106,000)
Net property, plant and equipment	150,899,000	146,541,000
Total assets	261,032,000	264,824,000
Current liabilities:
Accounts payable	23,313,000	18,732,000
Accrued liabilities:
Payroll costs and other taxes	2,403,000	1,436,000
Other	5,682,000	9,230,000
Deferred revenue	2,102,000	9,616,000
Current maturities of note payable	4,908,000	5,290,000
Total current liabilities	38,408,000	44,304,000
Long-term liabilities:
Note payable less current maturities	8,924,000	10,281,000
Deferred tax liability	21,783,000	22,076,000
Total long-term liabilities	30,707,000	32,357,000
Stockholders' equity:
Preferred stock-par value $1.00 per share; 5,000,000 shares authorized, none outstanding
Common stock-par value $.33 1/3 per share; 50,000,000 shares authorized, 7,920,119 and 7,910,885 shares issued and outstanding at December 31, 2011 and September 30, 2011, respectively	2,640,000	2,637,000
Additional paid-in capital	92,111,000	91,591,000
Retained earnings	97,166,000	93,935,000
Total stockholders' equity	191,917,000	188,163,000
Total liabilities and stockholders' equity	$ 261,032,000	$ 264,824,000