CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net earnings (loss)	$ 2,202	$ (1,316)
Adjustments to reconcile net earnings (loss) to net cash used in operating activities:
Equity in income of affiliates	(2,326)	(163)
Depletion, depreciation, and amortization	324	362
Distribution of income from equity investees	497	0
Retirement benefits expense	174	133
Accretion of asset retirement obligation	106	115
Deferred income tax expense	125	16
Asset retirement obligation payments	(115)	(84)
Share-based compensation benefit	(4)	0
Retirement plan contributions	0	(351)
Sale of interest in leasehold land, net of fees paid	(1,418)	(129)
Decrease from changes in current assets and liabilities	(531)	(1,003)
Net cash used in operating activities	(966)	(2,420)
Cash flows from investing activities:
Proceeds from sale of interest in leasehold land, net of fees paid	1,418	129
Capital expenditures - oil and natural gas	(352)	(343)
Capital expenditures - all other	(95)	(2)
Net cash provided by (used in) investing activities	971	(216)
Cash flows from financing activities:
Decrease in restricted cash	0	55
Distributions to non-controlling interests	(54)	(28)
Net cash (used in) provided by financing activities	(54)	27
Effect of exchange rate changes on cash and cash equivalents	(141)	(25)
Net decrease in cash and cash equivalents	(190)	(2,634)
Cash and cash equivalents at beginning of period	15,550	8,471
Cash and cash equivalents at end of period	$ 15,360	$ 5,837