SEGMENT INFORMATION (Details) - USD ($)	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Revenues:
Revenue, Net	$ 4,280,000	$ 1,872,000
Interest income	10,000	2,000
Total revenues	4,290,000	1,874,000
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	324,000	362,000
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss)	1,946,000	221,000
Equity in income (loss) of affiliates:
Equity in income of affiliates	2,326,000	163,000
General and administrative expenses	(2,023,000)	(1,862,000)
Interest expense	(4,000)	(33,000)
Interest income	10,000	2,000
Earnings (loss) before income taxes	2,255,000	(1,509,000)
Oil and natural gas
Revenues:
Revenue, Net	1,141,000	848,000
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	235,000	274,000
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss)	60,000	(165,000)
Land investment
Revenues:
Revenue, Net	1,678,000	150,000
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss)	1,678,000	150,000
Contract drilling
Revenues:
Revenue, Net	1,406,000	832,000
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	66,000	61,000
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss)	176,000	221,000
Other
Revenues:
Revenue, Net	55,000	42,000
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	23,000	27,000
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss)	32,000	$ 15,000
Intersegment Eliminations
Revenues:
Revenue, Net	$ 0