CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Non-controlling Interests
Balance, beginning of period (in shares) at Sep. 30, 2017		8,277,160
Balance, beginning of period at Sep. 30, 2017	$ 18,183	$ 4,223	$ 1,350	$ 15,023	$ (1,058)	$ (2,286)	$ 931
Increase (Decrease) in Stockholders' Equity
Distributions to non-controlling interests	(594)						(594)
Net loss (earnings)	(465)			(712)			247
Share-based compensation	1		1
Foreign currency translation adjustments, net of taxes of $0	(263)				(263)
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	93				93
Balance, end of period (in shares) at Jun. 30, 2018		8,277,160
Balance, end of period at Jun. 30, 2018	16,955	$ 4,223	1,351	14,311	(1,228)	(2,286)	584
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)	(8,122)			(8,090)			(32)
Foreign currency translation adjustments, net of taxes of $0	(194)				(194)
Retirement plans - amortization of accumulated other comprehensive loss into net periodic benefit cost, net of taxes of $0	42				42
Balance, end of period (in shares) at Jun. 30, 2019		8,277,160
Balance, end of period at Jun. 30, 2019	$ 7,875	$ 4,223	$ 1,350	$ 5,183	$ (666)	$ (2,286)	$ 71