CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net (loss) earnings	$ (1,034)	$ 2,202
Adjustments to reconcile net earnings (loss) to net cash used in operating activities:
Equity in loss (income) of affiliates	153	(2,326)
Depletion, depreciation, and amortization	280	324
Distribution of income from equity investees	0	497
Retirement benefits expense	59	174
Accretion of asset retirement obligation	96	106
Income tax receivable	(460)	0
Deferred rent liability	22	0
Deferred income tax expense	70	125
Asset retirement obligation payments	(436)	(115)
Share-based compensation expense (benefit)	17	(4)
Retirement plan contributions and payments	(5)	0
Sale of interest in leasehold land, net of fees paid	0	(1,418)
Decrease from changes in current assets and liabilities	(549)	(531)
Net cash used in operating activities	(1,787)	(966)
Cash flows from investing activities:
Purchases of certificates of deposit	(992)	0
Proceeds from the maturity of certificates of deposit	248	0
Net (fees paid on) proceeds from sale of interest in leasehold land	(343)	1,418
Proceeds from sale of oil and natural gas assets	35
Capital expenditures - oil and natural gas	(147)	(352)
Capital expenditures - all other	(18)	(95)
Net cash (used in) provided by investing activities	(1,217)	971
Cash flows from financing activities:
Distributions to non-controlling interests	(506)	(54)
Net cash used in financing activities	(506)	(54)
Effect of exchange rate changes on cash and cash equivalents	(7)	(141)
Net decrease in cash and cash equivalents	(3,517)	(190)
Cash and cash equivalents at beginning of period	16,281	15,550
Cash and cash equivalents at end of period	$ 12,764	$ 15,360