CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Sep. 30, 2014
Current assets:
Cash and cash equivalents	$ 9,097	$ 16,104
Accounts and other receivables, net of allowance for doubtful accounts of: $28,000 at March 31, 2015; $34,000 at September 30, 2014	4,026	2,910
Note receivable	899	0
Prepaid expenses	486	221
Investment held for sale	0	1,139
Real estate held for sale	5,448	5,448
Other current assets	824	698
Total current assets	20,780	26,520
Investments	6,356	5,900
Property and equipment	200,660	223,023
Accumulated depletion, depreciation, and amortization	(179,877)	(200,673)
Property and equipment, net	20,783	22,350
Total assets	47,919	54,770
Current liabilities:
Accounts payable	3,532	3,453
Accrued operating and other expenses	2,371	2,464
Accrued incentive and other compensation	572	1,085
Current portion of long-term debt	3,654	4,449
Other current liabilities	2,444	3,072
Total current liabilities	12,573	14,523
Long-term debt	5,000	6,650
Liability for retirement benefits	4,164	4,266
Asset retirement obligation	8,012	8,185
Deferred income taxes	1,740	1,201
Total liabilities	31,489	34,825
Commitments and contingencies (Note 14)
Equity:
Common stock, par value $0.50 per share; authorized, 20,000,000 shares: 8,445,060 issued at March 31, 2015 and September 30, 2014	4,223	4,223
Additional paid-in capital	1,326	1,315
Retained earnings	13,720	16,204
Accumulated other comprehensive loss, net	(1,384)	(258)
Treasury stock, at cost: 167,900 shares at March 31, 2015 and September 30, 2014	(2,286)	(2,286)
Total stockholders' equity	15,599	19,198
Non-controlling interests	831	747
Total equity	16,430	19,945
Total liabilities and equity	$ 47,919	$ 54,770