CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities of continuing operations:
Net loss	$ (7,111)	$ (5,331)
Net earnings (loss) from discontinued operations	12	(1,460)
Net loss from continuing operations	(7,123)	(3,871)
Adjustments to reconcile net loss from continuing operations to net cash (used in) provided by operating activities:
Depletion, depreciation, and amortization	3,146	4,950
Impairment of assets	865	2,885
Loss on sale of oil and natural gas properties	636	0
Sale of interest in leasehold land, net of fees paid	0	(439)
Distributions of income from equity investees	0	1,071
Equity in income of affiliates	0	(1,071)
Retirement benefits income	(315)	(345)
Accretion of asset retirement obligation	808	900
Deferred income tax (benefit) expense	(82)	42
Asset retirement obligation payments	(483)	(1,139)
Share-based compensation expense	372	208
Non-cash rent income	(8)	(28)
Retirement plan contributions and payments	(3)	(4)
Credit loss (reversal) expense	(2)	85
Foreign currency loss (gain)	192	(10)
Increase from changes in current assets and liabilities	224	2,100
Net cash (used in) provided by operating activities from continuing operations	(1,773)	5,334
Cash flows from investing activities of continuing operations:
Acquisition of non-controlling interest	0	(185)
Proceeds from sale of interest in leasehold land, net of fees paid	0	439
Proceeds from the sale of oil and natural gas assets	2,722	441
Capital expenditures - oil and natural gas	(3,074)	(3,514)
Net cash used in investing activities from continuing operations	(352)	(2,819)
Cash flows from financing activities of continuing operations:
Repayments for insurance premium financing	(168)	0
Distributions to non-controlling interests	0	(226)
Net cash used in financing activities from continuing operations	(168)	(226)
Cash flows from discontinued operations:
Net cash used in operating activities	(95)	(624)
Net cash provided by (used in) investing activities	1,125	(13)
Net cash used in financing activities	(250)	0
Net cash provided by (used in) discontinued operations	780	(637)
Effect of exchange rate changes on cash and cash equivalents	(106)	23
Net (decrease) increase in cash and cash equivalents	(1,619)	1,675
Cash and cash equivalents at beginning of year		4,505	$ 2,830
Less: Cash and cash equivalents of discontinued operations at end of year	0	(220)
Cash and cash equivalents of continuing operations at end of year	$ 2,886	$ 4,285