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	120						120
Distributions to non-controlling interests	(609)						(609)
Net earnings (loss)	(943)			(1,513)			570
Share-based compensation	15		15
Foreign currency translation adjustments, net of taxes of $0	(1,047)				(1,047)
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	79				79
Balance, end of period (in shares) at Jun. 30, 2015		8,277,160
Balance, end of period at Jun. 30, 2015	17,560	$ 4,223	1,330	14,691	(1,226)	(2,286)	828
Balance, beginning of period (in shares) at Mar. 31, 2015		8,277,160
Balance, beginning of period at Mar. 31, 2015	16,430	$ 4,223	1,326	13,720	(1,384)	(2,286)	831
Increase (Decrease) in Stockholders' Equity
Contributions from non-controlling interests	30						30
Distributions to non-controlling interests	(275)						(275)
Net earnings (loss)	1,213			971			242
Share-based compensation	4		4
Foreign currency translation adjustments, net of taxes of $0	132				132
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	26				26
Balance, end of period (in shares) at Jun. 30, 2015		8,277,160
Balance, end of period at Jun. 30, 2015	17,560	$ 4,223	1,330	14,691	(1,226)	(2,286)	828
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	(866)						(866)
Net earnings (loss)	(1,488)			(2,242)			754
Share-based compensation	8		8
Foreign currency translation adjustments, net of taxes of $0	113				113
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	127				127
Balance, end of period (in shares) at Jun. 30, 2016		8,277,160
Balance, end of period at Jun. 30, 2016	17,156	$ 4,223	1,343	15,225	(1,882)	(2,286)	533
Balance, beginning of period (in shares) at Mar. 31, 2016		8,277,160
Balance, beginning of period at Mar. 31, 2016	16,513	$ 4,223	1,340	14,450	(1,929)	(2,286)	715
Increase (Decrease) in Stockholders' Equity
Distributions to non-controlling interests	(780)						(780)
Net earnings (loss)	1,373			775			598
Share-based compensation	3		3
Foreign currency translation adjustments, net of taxes of $0	(3)				(3)
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	50				50
Balance, end of period (in shares) at Jun. 30, 2016		8,277,160
Balance, end of period at Jun. 30, 2016	$ 17,156	$ 4,223	$ 1,343	$ 15,225	$ (1,882)	$ (2,286)	$ 533