SEGMENT INFORMATION (Details) - USD ($)	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenues:
Revenue before interest income	$ 6,140,000	$ 7,482,000
Interest income	15,000	29,000
Total revenues	6,155,000	7,511,000
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	1,511,000	840,000
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss) (before general and administrative expenses):	669,000	2,892,000
Equity in income (loss) of affiliates:
Equity in income of affiliates	0	538,000
General and administrative expenses	(1,404,000)	(2,249,000)
Foreign currency gain	126,000	78,000
Interest Expense	(2,000)	0
Interest income	15,000	29,000
(Loss) earnings before income taxes	(596,000)	1,288,000
Intersegment eliminations | External Customer
Revenues:
Total revenues	0
Oil and natural gas
Revenues:
Revenue before interest income	5,130,000	5,226,000
Total revenues	5,130,000	5,226,000
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	1,458,000	796,000
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss) (before general and administrative expenses):	881,000	1,986,000
Contract drilling
Revenues:
Revenue before interest income	993,000	1,948,000
Total revenues	993,000	1,948,000
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	52,000	43,000
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss) (before general and administrative expenses):	(228,000)	48,000
Land investment
Revenues:
Revenue before interest income	0	265,000
Total revenues	0	265,000
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss) (before general and administrative expenses):	0	265,000
Other
Revenues:
Revenue before interest income	17,000	43,000
Total revenues	32,000	72,000
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	1,000	1,000
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss) (before general and administrative expenses):	16,000	42,000
Gain (Loss) on Sale of Assets
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss) (before general and administrative expenses):	$ 0	$ 551,000