CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net earnings	$ 1,340	$ 743
Adjustments to reconcile net earnings to net cash provided by operating activities:
Equity in income of affiliates	(1,207)	(1,054)
Depletion, depreciation, and amortization	483	276
Impairment of assets	0	630
Sale of interest in leasehold land, net of fees paid	(527)	(426)
Distributions of income from equity investees	1,207	1,054
Retirement benefits income	(68)	(8)
Accretion of asset retirement obligation	159	137
Non-cash rent income	(1)	(1)
Deferred income tax expense	32	39
Asset retirement obligation payments	(83)	(38)
Share-based compensation expense	254	0
Common stock issued for services	2	0
Retirement plan contributions and payments	0	(2)
Bad debt expense	0	7
Decrease from changes in current assets and liabilities	(682)	(1,277)
Net cash provided by operating activities	909	80
Cash flows from investing activities:
Distribution from equity investees in excess of earnings	0	813
Proceeds from sale of interest in leasehold land, net of fees paid	527	426
Proceeds from the sale of contract drilling assets	687	0
Payments to acquire oil and natural gas properties	(317)	0
Capital expenditures - oil and natural gas	(702)	(364)
Capital expenditures - all other	(1)	0
Net cash provided by investing activities	194	875
Cash flows from financing activities:
Borrowings on long-term debt	0	31
Distributions to non-controlling interests	(251)	(248)
Net cash used in financing activities	(251)	(217)
Effect of exchange rate changes on cash and cash equivalents	11	12
Net increase in cash and cash equivalents	863	750
Cash and cash equivalents at beginning of period	11,279	4,584
Cash and cash equivalents at end of period	$ 12,142	$ 5,334