CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Non-controlling Interests
Balance, beginning of period (in shares) at Sep. 30, 2016		8,277,160
Balance, beginning of period at Sep. 30, 2016	$ 13,744	$ 4,223	$ 1,345	$ 13,852	$ (3,920)	$ (2,286)	$ 530
Increase (Decrease) in Stockholders' Equity
Distributions to non-controlling interests	(616)						(616)
Net earnings (loss)	1,560			1,026			534
Share-based compensation	3		3
Foreign currency translation adjustments, net of taxes of $0	(48)				(48)
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	193				193
Balance, end of period (in shares) at Mar. 31, 2017		8,277,160
Balance, end of period at Mar. 31, 2017	14,836	$ 4,223	1,348	14,878	(3,775)	(2,286)	448
Balance, beginning of period (in shares) at Sep. 30, 2017		8,277,160
Balance, beginning of period at Sep. 30, 2017	18,183	$ 4,223	1,350	15,023	(1,058)	(2,286)	931
Increase (Decrease) in Stockholders' Equity
Distributions to non-controlling interests	(506)						(506)
Net earnings (loss)	(371)			(338)			(33)
Share-based compensation	1		1
Foreign currency translation adjustments, net of taxes of $0	(187)				(187)
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	63				63
Balance, end of period (in shares) at Mar. 31, 2018		8,277,160
Balance, end of period at Mar. 31, 2018	$ 17,183	$ 4,223	$ 1,351	$ 14,685	$ (1,182)	$ (2,286)	$ 392