CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net loss	$ (6,724)	$ (371)
Adjustments to reconcile net earnings (loss) to net cash (used in) provided by operating activities:
Equity in loss of affiliates	286	233
Depletion, depreciation, and amortization	1,577	507
Gain on sale of oil and natural gas properties	0	2,250
Impairment of assets	2,413	37
Retirement benefits expense	109	148
Income tax receivable, noncurrent	(31)	(460)
Deferred rent liability	43	43
Accretion of asset retirement obligation	300	136
Deferred income tax (benefit) expense	(106)	523
Asset retirement obligation payments	(288)	(538)
Share-based compensation benefit	(23)	(26)
Retirement plan contributions and payments	(119)	(210)
Sale of interest in leasehold land, net of fees paid	(124)	0
Increase (decrease) from changes in current assets and liabilities	1,866	(1,233)
Net cash used in operating activities	(821)	(3,461)
Cash flows from investing activities:
Purchase of certificates of deposit	0	(3,958)
Proceeds from the maturity of certificates of deposit	741	3,176
Distribution from equity investees in excess of earnings	352	0
Net proceeds (fees paid on) from sale of interest in leasehold land	124	(343)
Proceeds from the sale of oil and natural gas properties	1,519	763
Payments to acquire oil and natural gas properties	(355)	0
Capital expenditures - oil and natural gas	(168)	(288)
Capital expenditures - all other	(488)	(65)
Increase in notes receivable	(300)	0
Net cash provided by (used in) investing activities	1,425	(715)
Cash flows from financing activities:
Distributions to non-controlling interests	(110)	(506)
Net cash used in financing activities	(110)	(506)
Effect of exchange rate changes on cash and cash equivalents	(32)	(206)
Net increase (decrease) in cash and cash equivalents	462	(4,888)
Cash and cash equivalents at beginning of period	5,965	16,281
Cash and cash equivalents at end of period	$ 6,427	$ 11,393