REVENUE FROM CONTRACTS WITH CUSTOMERS - DISAGGREGATION OF REVENUE (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 5,216	$ 6,678	$ 12,698	$ 12,131
Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	2,789	3,657	6,273	6,325
Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	616	859	1,918	1,708
Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	281	617	721	1,020
Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,501	818	3,449	1,694
Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income		695	265	1,295
Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	29	32	72	89
United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,816	2,505	4,548	4,949
Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,400	4,173	8,150	7,182
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,715	5,860	9,249	10,437
Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,501	818	3,449	1,694
Oil and natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,686	5,133	8,912	9,053
Oil and natural gas | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	2,789	3,657	6,273	6,325
Oil and natural gas | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	616	859	1,918	1,708
Oil and natural gas | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	281	617	721	1,020
Oil and natural gas | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Oil and natural gas | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income		0	0	0
Oil and natural gas | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Oil and natural gas | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	309	992	826	1,956
Oil and natural gas | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,377	4,141	8,086	7,097
Oil and natural gas | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,686	5,133	8,912	9,053
Oil and natural gas | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Contract drilling
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,501	818	3,449	1,694
Contract drilling | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Contract drilling | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Contract drilling | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Contract drilling | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,501	818	3,449	1,694
Contract drilling | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income		0	0	0
Contract drilling | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Contract drilling | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,501	818	3,449	1,694
Contract drilling | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Contract drilling | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Contract drilling | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,501	818	3,449	1,694
Land investment
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	695	265	1,295
Land investment | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Land investment | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Land investment | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Land investment | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Land investment | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income		695	265	1,295
Land investment | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Land investment | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	695	265	1,295
Land investment | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Land investment | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	695	265	1,295
Land investment | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	29	32	72	89
Other | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Other | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Other | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Other | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	0	0
Other | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income			0	0
Other | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	29	32	72	89
Other | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	6	0	8	4
Other | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	23	32	64	85
Other | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	29	32	72	89
Other | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 0	$ 0	$ 0	$ 0