CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net loss	$ (4,573)	$ (1,034)
Adjustments to reconcile net earnings (loss) to net cash used in operating activities:
Equity in loss of affiliates	79	153
Depletion, depreciation, and amortization	819	280
Impairment of assets	2,170	0
Retirement benefits expense	54	59
Accretion of asset retirement obligation	150	96
Income tax receivable, noncurrent	(31)	(460)
Deferred rent liability	22	22
Deferred income tax (benefit) expense	(72)	70
Asset retirement obligation payments	(33)	(436)
Share-based compensation (benefit) expense	(24)	17
Retirement plan contributions and payments	(2)	(5)
Sale of interest in leasehold land, net of fees paid	(124)	0
Increase (decrease) from changes in current assets and liabilities	567	(549)
Net cash used in operating activities	(998)	(1,787)
Cash flows from investing activities:
Purchases of certificates of deposit	0	(992)
Proceeds from the maturity of certificates of deposit	741	248
Net proceeds (fees paid on) from sale of interest in leasehold land	124	(343)
Distribution from equity investees in excess of earnings	352	0
Proceeds from sale of oil and natural gas assets	633	35
Payments to acquire oil and natural gas properties	(355)	0
Capital expenditures - oil and natural gas	(108)	(147)
Capital expenditures - all other	(96)	(18)
Net cash provided by (used in) investing activities	1,291	(1,217)
Cash flows from financing activities:
Distributions to non-controlling interests	(107)	(506)
Net cash used in financing activities	(107)	(506)
Effect of exchange rate changes on cash and cash equivalents	(53)	(7)
Net increase (decrease) in cash and cash equivalents	133	(3,517)
Cash and cash equivalents at beginning of period	5,965	16,281
Cash and cash equivalents at end of period	$ 6,098	$ 12,764