CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 5,965	$ 16,281
Certificates of deposit	741	4,413
Accounts and other receivables, net of allowance for doubtful accounts	1,965	1,414
Income taxes receivable	2,461	1,145
Investment held for sale	0	1,037
Other current assets	950	852
Total current assets	12,082	25,142
Income taxes receivable, net of current portion	429	0
Deferred income tax assets	0	300
Asset for retirement benefits	848	0
Investments	1,608	2,209
Property and equipment, net	16,411	5,369
Total assets	31,378	33,020
Current liabilities:
Accounts payable	1,191	1,185
Accrued capital expenditures	232	348
Accrued compensation	568	390
Accrued operating and other expenses	1,140	1,386
Current portion of asset retirement obligation	444	1,231
Other current liabilities	54	258
Total current liabilities	3,629	4,798
Deferred rent	107	21
Liability for retirement benefits	4,410	4,150
Asset retirement obligation	6,678	5,632
Deferred income tax liabilities	315	236
Total liabilities	15,139	14,837
Commitments and contingencies (Note 14)
Equity:
Common stock, par value $0.50 per share; authorized, 20,000,000 shares: 8,445,060 issued at September 30, 2018 and 2017	4,223	4,223
Additional paid-in capital	1,350	1,350
Retained earnings	13,253	15,023
Accumulated other comprehensive loss, net	(514)	(1,058)
Treasury stock, at cost: 167,900 shares at September 30, 2018 and 2017	(2,286)	(2,286)
Total stockholders’ equity	16,026	17,252
Non-controlling interests	213	931
Total equity	16,239	18,183
Total liabilities and equity	$ 31,378	$ 33,020