CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2014	Sep. 30, 2013
Current assets:
Cash and cash equivalents	$ 10,255,000	$ 7,828,000
Restricted cash	216,000
Accounts and other receivables, net of allowance for doubtful accounts of: $35,000 at June 30, 2014; $43,000 at September 30, 2013	9,333,000	3,287,000
Prepaid expenses	273,000	230,000
Real estate held for sale	5,448,000	5,448,000
Other current assets	593,000	2,234,000
Total current assets	26,118,000	19,027,000
Restricted cash, net of current portion	1,676,000
Investments	7,145,000	2,381,000
Property and equipment	230,685,000	252,872,000
Accumulated depletion, depreciation, and amortization	(209,268,000)	(211,566,000)
Property and equipment, net	21,417,000	41,306,000
Total assets	56,356,000	62,714,000
Current liabilities:
Accounts payable	2,777,000	4,415,000
Accrued capital expenditures	410,000	1,846,000
Accrued incentive and other compensation	1,168,000	1,652,000
Accrued operating and other expenses	2,865,000	2,670,000
Current portion of long-term debt	5,635,000	5,240,000
Other current liabilities	2,095,000	624,000
Total current liabilities	14,950,000	16,447,000
Long-term debt	10,399,000	11,400,000
Liability for retirement benefits	2,953,000	3,137,000
Asset retirement obligation	6,786,000	7,520,000
Deferred income taxes	1,627,000	1,890,000
Total liabilities	36,715,000	40,394,000
Commitments and contingencies (Note 12)
Equity:
Common stock, par value $0.50 per share; authorized, 20,000,000 shares: 8,445,060 issued at June 30, 2014 and September 30, 2013	4,223,000	4,223,000
Additional paid-in capital	1,307,000	1,289,000
Retained earnings	14,042,000	15,532,000
Accumulated other comprehensive income, net	1,659,000	2,991,000
Treasury stock, at cost: 167,900 shares at June 30, 2014 and September 30, 2013	(2,286,000)	(2,286,000)
Total stockholders' equity	18,945,000	21,749,000
Non-controlling interests	696,000	571,000
Total equity	19,641,000	22,320,000
Total liabilities and equity	$ 56,356,000	$ 62,714,000