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, 2014		8,277,160
Balance, beginning of period at Sep. 30, 2014	$ 19,945	$ 4,223	$ 1,315	$ 16,204	$ (258)	$ (2,286)	$ 747
Increase (Decrease) in Stockholders' Equity
Contributions from non-controlling interests	90						90
Distributions to non-controlling interests	(334)						(334)
Net earnings (loss)	(2,156)			(2,484)			328
Share-based compensation	11		11
Foreign currency translation adjustments, net of taxes of $0	(1,179)				(1,179)
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	53				53
Balance, end of period (in shares) at Mar. 31, 2015		8,277,160
Balance, end of period at Mar. 31, 2015	16,430	$ 4,223	1,326	13,720	(1,384)	(2,286)	831
Balance, beginning of period (in shares) at Dec. 31, 2014		8,277,160
Balance, beginning of period at Dec. 31, 2014	19,122	$ 4,223	1,322	15,737	(639)	(2,286)	765
Increase (Decrease) in Stockholders' Equity
Contributions from non-controlling interests	45						45
Distributions to non-controlling interests	(123)						(123)
Net earnings (loss)	(1,873)			(2,017)			144
Share-based compensation	4		4
Foreign currency translation adjustments, net of taxes of $0	(772)				(772)
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	27				27
Balance, end of period (in shares) at Mar. 31, 2015		8,277,160
Balance, end of period at Mar. 31, 2015	16,430	$ 4,223	1,326	13,720	(1,384)	(2,286)	831
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 Dec. 31, 2015		8,277,160
Balance, beginning of period at Dec. 31, 2015	17,804	$ 4,223	1,338	16,058	(2,239)	(2,286)	710
Increase (Decrease) in Stockholders' Equity
Distributions to non-controlling interests	(58)						(58)
Net earnings (loss)	(1,545)			(1,608)			63
Share-based compensation	2		2
Foreign currency translation adjustments, net of taxes of $0	272				272
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	38				38
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