CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Current assets:
Cash and cash equivalents	$ 4,613	$ 5,965
Certificates of deposit	0	741
Accounts and other receivables, net of allowance for doubtful accounts of: $44,000 at September 30, 2019; $42,000 at September 30, 2018	1,884	1,965
Income taxes receivable	386	2,461
Other current assets	1,821	950
Total current assets	8,704	12,082
Income taxes receivable, net of current portion	230	429
Asset for retirement benefits	0	848
Investments	980	1,608
Property and equipment, net	8,388	16,411
Total assets	18,302	31,378
Current liabilities:
Accounts payable	1,223	1,191
Accrued capital expenditures	287	232
Accrued compensation	205	568
Accrued operating and other expenses	1,079	1,140
Current portion of asset retirement obligation	330	444
Other current liabilities	1,644	54
Total current liabilities	4,768	3,629
Deferred rent	193	107
Liability for retirement benefits	5,785	4,410
Asset retirement obligation	6,059	6,678
Deferred income tax liabilities	168	315
Total liabilities	16,973	15,139
Commitments and contingencies (Note 13)
Equity:
Common stock, par value $0.50 per share; authorized, 20,000,000 shares: 8,445,060 issued at September 30, 2019 and 2018	4,223	4,223
Additional paid-in capital	1,350	1,350
Retained earnings	859	13,253
Accumulated other comprehensive loss, net	(2,917)	(514)
Treasury stock, at cost: 167,900 shares at September 30, 2019 and 2018	(2,286)	(2,286)
Total stockholders’ equity	1,229	16,026
Non-controlling interests	100	213
Total equity	1,329	16,239
Total liabilities and equity	$ 18,302	$ 31,378