CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Non-controlling Interests
Balance at Sep. 30, 2015	$ 19,262	$ 4,223	$ 1,335	$ 17,467	$ (2,122)	$ (2,286)	$ 645
Balance (in shares) at Sep. 30, 2015		8,277,160
Increase (Decrease) in Stockholders' Equity
Distributions to non-controlling interests	(866)						(866)
Net earnings (loss)	(2,864)			(3,615)			751
Share-based compensation	10		10
Foreign currency translation adjustments, net of taxes of $0	87				87
Retirement plans:
Amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	168				168
Net actuarial gains (losses) arising during the period, net of taxes of $0	(2,053)				(2,053)
Balance at Sep. 30, 2016	13,744	$ 4,223	1,345	13,852	(3,920)	(2,286)	530
Balance (in shares) at Sep. 30, 2016		8,277,160
Increase (Decrease) in Stockholders' Equity
Contributions from non-controlling interests	6						6
Distributions to non-controlling interests	(748)						(748)
Net earnings (loss)	2,314			1,171			1,143
Share-based compensation	5		5
Foreign currency translation adjustments, net of taxes of $0	147				147
Retirement plans:
Amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	326				326
Net actuarial gains (losses) arising during the period, net of taxes of $0	2,389				2,389
Balance at Sep. 30, 2017	$ 18,183	$ 4,223	$ 1,350	$ 15,023	$ (1,058)	$ (2,286)	$ 931
Balance (in shares) at Sep. 30, 2017		8,277,160