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, 2017	$ 18,183	$ 4,223	$ 1,350	$ 15,023	$ (1,058)	$ (2,286)	$ 931
Balance (in shares) at Sep. 30, 2017		8,277,160
Increase (Decrease) in Stockholders' Equity
Distributions to non-controlling interests	(1,070)						(1,070)
Net (loss) earnings	(1,418)			(1,770)			352
Foreign currency translation adjustments, net of taxes of $0	(128)				(128)
Retirement plans:
Amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	124				124
Net actuarial (loss) gains arising during the period, net of taxes of $0	548				548
Balance at Sep. 30, 2018	16,239	$ 4,223	1,350	13,253	(514)	(2,286)	213
Balance (in shares) at Sep. 30, 2018		8,277,160
Increase (Decrease) in Stockholders' Equity
Cumulative impact from the adoption of ASU No. 2014-09	20			20
Distributions to non-controlling interests	(110)						(110)
Net (loss) earnings	(12,417)			(12,414)			(3)
Foreign currency translation adjustments, net of taxes of $0	(234)				(234)
Retirement plans:
Amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	55				55
Net actuarial (loss) gains arising during the period, net of taxes of $0	(2,224)				(2,224)
Balance at Sep. 30, 2019	$ 1,329	$ 4,223	$ 1,350	$ 859	$ (2,917)	$ (2,286)	$ 100
Balance (in shares) at Sep. 30, 2019		8,277,160