CONDENSED 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, 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	(28)						(28)
Net earnings (loss)	(1,316)			(1,409)			93
Share-based compensation	3		3
Foreign currency translation adjustments, net of taxes of $0	(156)				(156)
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	39				(39)
Balance, end of period (in shares) at Dec. 31, 2015		8,277,160
Balance, end of period at Dec. 31, 2015	17,804	$ 4,223	1,338	16,058	(2,239)	(2,286)	710
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	(54)						(54)
Net earnings (loss)	2,202			1,641			561
Share-based compensation	2		2
Foreign currency translation adjustments, net of taxes of $0	(70)				(70)
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	97				97
Balance, end of period (in shares) at Dec. 31, 2016		8,277,160
Balance, end of period at Dec. 31, 2016	$ 15,921	$ 4,223	$ 1,347	$ 15,493	$ (3,893)	$ (2,286)	$ 1,037