CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net loss	$ (1,550)	$ (1,235)	$ (2,212)	$ (26)
Adjustments to reconcile net loss to net cash provided by operating activities:
Equity in income of affiliates	(1,071)	0	(1,071)	(538)
Depletion, depreciation, and amortization	1,392	761	2,903	1,601
Impairment of assets	1,677	0	1,677	0
Gain on sale of assets	0	0	0	(551)
Sale of interest in leasehold land, net of fees paid			(439)	(233)
Distributions of income from equity investees			1,071	319
Retirement benefits income			(173)	(126)
Non-cash rent income			(13)	(12)
Accretion of asset retirement obligation			434	395
Deferred income tax expense (benefit)	53	(45)	51	(57)
Asset retirement obligation payments			(396)	(529)
Share-based compensation expense			111	190
Retirement plan contributions and payments			(2)	(2)
Credit loss expense			46	18
Foreign currency loss (gain)	128	(2)	2	(80)
Increase from changes in current assets and liabilities			273	365
Net cash provided by operating activities			2,262	734
Cash flows from investing activities:
Distribution from equity investees in excess of earnings			0	219
Proceeds from sale of interest in leasehold land, net of fees paid			439	233
Capital expenditures - oil and natural gas			(1,624)	(7,306)
Capital expenditures - all other			(1)	(35)
Advances to operators for capital expenditures			0	(481)
Net cash used in investing activities			(1,186)	(7,370)
Cash flows from financing activities:
Distributions to non-controlling interests			(223)	(124)
Payment of dividends			0	(299)
Net cash used in financing activities			(223)	(423)
Effect of exchange rate changes on cash and cash equivalents			2	34
Net increase (decrease) in cash and cash equivalents			855	(7,025)
Cash and cash equivalents at beginning of period			2,830	12,804
Cash and cash equivalents at end of period	$ 3,685	$ 5,779	$ 3,685	$ 5,779