SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Revenues:
Revenues	$ 1,502	$ 3,476	$ 3,353	$ 9,491
Interest income	20	16	22	33
Total revenues	1,522	3,492	3,375	9,524
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	391	868	753	1,847
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss)	(521)	318	(321)	2,206
Equity in income of affiliates:
Equity in income of affiliates	253	368	416	456
General and administrative expenses	(1,528)	(2,104)	(3,369)	(4,379)
Interest expense	(33)	(82)	(66)	(172)
Interest income	20	16	22	33
Loss before income taxes	(1,809)	(1,484)	(3,318)	(1,856)
Oil and natural gas
Revenues:
Revenues	621	2,092	1,469	5,064
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	305	772	579	1,655
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss)	(698)	(498)	(863)	(32)
Land investment
Revenues:
Revenues	284	817	413	1,849
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss)	284	817	413	1,849
Contract drilling
Revenues:
Revenues	550	491	1,382	2,424
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	62	70	123	141
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss)	(130)	(51)	91	286
Other
Revenues:
Revenues	47	76	89	154
Depletion, depreciation, and amortization:
Depletion, depreciation, and amortization	24	26	51	51
Operating profit (loss) (before general and administrative expenses):
Operating profit (loss)	$ 23	$ 50	$ 38	$ 103