REVENUE FROM CONTRACTS WITH CUSTOMERS - DISAGGREGATION OF REVENUE (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 5,650	$ 8,028	$ 18,348	$ 20,159
Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,423	4,951	9,696	11,276
Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	622	1,652	2,540	3,360
Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	458	689	1,179	1,709
Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,134	736	4,583	2,430
Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income			265	1,295
Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	13		85	89
United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	2,004	1,576	6,552	6,525
Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,646	6,452	11,796	13,634
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	4,516	7,292	13,765	17,729
Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,134	736	4,583	2,430
Oil and natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	4,503	7,292	13,415	16,345
Oil and natural gas | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,423	4,951	9,696	11,276
Oil and natural gas | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	622	1,652	2,540	3,360
Oil and natural gas | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	458	689	1,179	1,709
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
Oil and natural gas | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	869	840	1,695	2,796
Oil and natural gas | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,634	6,452	11,720	13,549
Oil and natural gas | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	4,503	7,292	13,415	16,345
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	1,134	736	4,583	2,430
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	1,134	736	4,583	2,430
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
Contract drilling | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,134	736	4,583	2,430
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	1,134	736	4,583	2,430
Land investment
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	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			265	1,295
Land investment | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0	0
Land investment | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0	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	0	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	13	0	85	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	13		85	89
Other | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	1	0	9	4
Other | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	12	0	76	85
Other | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	13	0	85	89
Other | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 0	$ 0	$ 0	$ 0