SEGMENT AND GEOGRAPHIC INFORMATION - ASSETS BY SEGMENT (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Sep. 30, 2025
Assets By Segment:
Total assets	$ 21,467	$ 20,812
Continuing Operations
Assets By Segment:
Total assets	21,467	20,812
Cash and cash equivalents | Continuing Operations
Assets By Segment:
Total assets	3,622	2,886
Asset for retirement benefits | Continuing Operations
Assets By Segment:
Total assets	6,056	5,928
Corporate and other | Continuing Operations
Assets By Segment:
Total assets	521	880
Oil and natural gas | Operating segments | Canada | Continuing Operations
Assets By Segment:
Total assets	$ 11,268	$ 11,118