CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Non-controlling Interests
Balance, beginning of period (in shares) at Sep. 30, 2015		8,277,160
Balance, beginning of period at Sep. 30, 2015	$ 19,262	$ 4,223	$ 1,335	$ 17,467	$ (2,122)	$ (2,286)	$ 645
Increase (Decrease) in Stockholders' Equity
Distributions to non-controlling interests	(86)						(86)
Net earnings (loss)	(2,861)			(3,017)			156
Share-based compensation	5		5
Foreign currency translation adjustments, net of taxes of $0	116				116
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	77				77
Balance, end of period (in shares) at Mar. 31, 2016		8,277,160
Balance, end of period at Mar. 31, 2016	16,513	$ 4,223	1,340	14,450	(1,929)	(2,286)	715
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