CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss	Treasury Stock	Non-controlling Interests
Balance, beginning of period (in shares) at Sep. 30, 2018		8,277,160
Balance, beginning of period at Sep. 30, 2018	$ 16,239	$ 4,223	$ 1,350	$ 13,253	$ (514)	$ (2,286)	$ 213
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	(6,724)			(6,725)			1
Foreign currency translation adjustments, net of taxes of $0	(283)				(283)
Retirement plans:
Amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	33				33
Net actuarial gains arising during the period, net of taxes of $0	0
Curtailment gain, net of taxes of $0	0
Balance, end of period (in shares) at Mar. 31, 2019		8,277,160
Balance, end of period at Mar. 31, 2019	9,175	$ 4,223	1,350	6,548	(764)	(2,286)	104
Balance, beginning of period (in shares) at Sep. 30, 2019		8,277,160
Balance, beginning of period at Sep. 30, 2019	1,329	$ 4,223	1,350	859	(2,917)	(2,286)	100
Increase (Decrease) in Stockholders' Equity
Net (loss) earnings	(1,937)			(1,928)			(9)
Foreign currency translation adjustments, net of taxes of $0	89				89
Retirement plans:
Amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	80				80
Net actuarial gains arising during the period, net of taxes of $0	880				880
Curtailment gain, net of taxes of $0	1,699				1,699
Balance, end of period (in shares) at Mar. 31, 2020		8,277,160
Balance, end of period at Mar. 31, 2020	$ 2,140	$ 4,223	$ 1,350	$ (1,069)	$ (169)	$ (2,286)	$ 91