REVENUE FROM CONTRACTS WITH CUSTOMERS REVENUE FROM CONTRACTS WITH CUSTOMERS - DISAGGREGATION OF REVENUE (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 3,392	$ 3,122	$ 8,917	$ 6,862
United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,689		4,005
Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,703		4,912
Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,419		3,792
Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	152		650
Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	117		402
Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,689		3,839
Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income			165
Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	15		69
Oil and natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,688	616	4,844	2,428
Oil and natural gas | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Oil and natural gas | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,688		4,844
Oil and natural gas | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,419		3,792
Oil and natural gas | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	152		650
Oil and natural gas | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	117		402
Oil and natural gas | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Oil and natural gas | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income			0
Oil and natural gas | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Contract drilling
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,689	1,193	3,839	3,051
Contract drilling | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,689		3,839
Contract drilling | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Contract drilling | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Contract drilling | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Contract drilling | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Contract drilling | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,689		3,839
Contract drilling | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income			0
Contract drilling | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Land investment
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	1,310	165	1,310
Land investment | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		165
Land investment | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Land investment | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Land investment | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Land investment | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Land investment | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Land investment | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income			165
Land investment | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	15	$ 3	69	$ 73
Other | United states
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		1
Other | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	15		68
Other | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Other | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Other | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Other | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Other | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income			0
Other | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	15		69
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,703		5,078
Goods transferred at a point in time | Oil and natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,688		4,844
Goods transferred at a point in time | Contract drilling
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Goods transferred at a point in time | Land investment
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		165
Goods transferred at a point in time | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	15		69
Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,689		3,839
Services transferred over time | Oil and natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Services transferred over time | Contract drilling
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,689		3,839
Services transferred over time | Land investment
Disaggregation of Revenue [Line Items]
Revenue before interest income	0		0
Services transferred over time | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 0		$ 0