CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net loss	$ (1,937)	$ (6,724)
Adjustments to reconcile net loss to net cash used in operating activities:
Equity in loss of affiliates	68	286
Depletion, depreciation, and amortization	1,392	1,577
Gain on sale of asset	(1,336)	0
Impairment of assets	1,637	2,413
Retirement benefits expense	26	109
Income tax receivable, noncurrent	0	(31)
Non-cash rent expense	50	43
Accretion of asset retirement obligation	276	300
Deferred income tax benefit	(9)	(106)
Asset retirement obligation payments	(420)	(288)
Share-based compensation benefit	0	(23)
Retirement plan contributions and payments	(4)	(119)
Bad debt expense	150	0
Sale of interest in leasehold land, net of fees paid	0	(124)
(Decrease) increase from changes in current assets and liabilities	(145)	1,866
Net cash used in operating activities	(252)	(821)
Cash flows from investing activities:
Proceeds from the maturity of certificates of deposit	0	741
Distribution from equity investees in excess of earnings	0	352
Net proceeds from sale of interest in leasehold land	0	124
Proceeds from sale of oil and natural gas assets	594	1,519
Proceeds from the sale of asset	1,100	0
Payments to acquire oil and natural gas properties	0	(355)
Capital expenditures - oil and natural gas	(2,448)	(168)
Capital expenditures - all other	(203)	(488)
Issuance of note receivable	0	(300)
Net cash (used in) provided by investing activities	(957)	1,425
Cash flows from financing activities:
Distributions to non-controlling interests	0	(110)
Net cash used in financing activities	0	(110)
Effect of exchange rate changes on cash and cash equivalents	(18)	(32)
Net (decrease) increase in cash and cash equivalents	(1,227)	462
Cash and cash equivalents at beginning of period	4,613	5,965
Cash and cash equivalents at end of period	$ 3,386	$ 6,427