REVENUE FROM CONTRACTS WITH CUSTOMERS - DISAGGREGATION OF REVENUE (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 5,756	$ 5,216	$ 11,896	$ 12,698
Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	2,985	2,789	6,877	6,273
Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	678	616	1,390	1,918
Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	481	281	1,007	721
Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,070	1,501	2,063	3,449
Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income	500		500	265
Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	42	29	59	72
United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	2,269	1,816	4,017	4,548
Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,487	3,400	7,879	8,150
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	4,686	3,715	9,833	9,249
Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,070	1,501	2,063	3,449
Oil and natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	4,144	3,686	9,274	8,912
Oil and natural gas | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	2,985	2,789	6,877	6,273
Oil and natural gas | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	678	616	1,390	1,918
Oil and natural gas | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	481	281	1,007	721
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	674	309	1,428	826
Oil and natural gas | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,470	3,377	7,846	8,086
Oil and natural gas | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	4,144	3,686	9,274	8,912
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	1,070	1,501	2,063	3,449
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	1,070	1,501	2,063	3,449
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	1,070	1,501	2,063	3,449
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	1,070	1,501	2,063	3,449
Land investment
Disaggregation of Revenue [Line Items]
Revenue before interest income	500	0	500	265
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	500		500	265
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	500	0	500	265
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	500	0	500	265
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	42	29	59	72
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	0
Other | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	42	29	59	72
Other | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	25	6	26	8
Other | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	17	23	33	64
Other | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	42	29	59	72
Other | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 0	$ 0	$ 0	$ 0