REVENUE FROM CONTRACTS WITH CUSTOMERS - DISAGGREGATION OF REVENUE (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 5,506	$ 5,650	$ 17,402	$ 18,348
Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,597	3,423	10,474	9,696
Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	378	622	1,768	2,540
Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	477	458	1,484	1,179
Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,021	1,134	3,084	4,583
Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income			500	265
Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	33	13	92	85
United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,556	2,004	5,573	6,552
Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,950	3,646	11,829	11,796
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	4,485	4,516	14,318	13,765
Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,021	1,134	3,084	4,583
Oil and natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	4,452	4,503	13,726	13,415
Oil and natural gas | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,597	3,423	10,474	9,696
Oil and natural gas | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	378	622	1,768	2,540
Oil and natural gas | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	477	458	1,484	1,179
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
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	534	869	1,962	1,695
Oil and natural gas | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,918	3,634	11,764	11,720
Oil and natural gas | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	4,452	4,503	13,726	13,415
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	1,021	1,134	3,084	4,583
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	1,021	1,134	3,084	4,583
Contract drilling | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income			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	1,021	1,134	3,084	4,583
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	1,021	1,134	3,084	4,583
Land investment
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	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	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	0	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	0	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	33	13	92	85
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	33	13	92	85
Other | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	1	1	27	9
Other | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	32	12	65	76
Other | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	33	13	92	85
Other | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 0	$ 0	$ 0	$ 0