CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Non-controlling Interests
Balance, beginning of period (in shares) at Sep. 30, 2021		9,445,625
Balance, beginning of period at Sep. 30, 2021	$ 9,507	$ 4,807	$ 4,590	$ 2,356	$ 32	$ (2,286)	$ 8
Increase (Decrease) in Stockholders' Equity
Net earnings	1,340			1,073			267
Foreign currency translation adjustments, net of taxes of $0	(25)				(25)
Distributions to non-controlling interests	(251)						(251)
Share-based compensation	254		254
Issuance of common stock for services (in shares)		1,158
Issuance of common stock for services	2		2
Retirement plans:
Amortization of accumulated other comprehensive gain into net periodic benefit cost, net of taxes of $0	0
Balance, end of period (in shares) at Dec. 31, 2021		9,446,783
Balance, end of period at Dec. 31, 2021	10,827	$ 4,807	4,846	3,429	7	(2,286)	24
Balance, beginning of period (in shares) at Sep. 30, 2022		9,956,687
Balance, beginning of period at Sep. 30, 2022	19,161	$ 5,062	7,351	7,720	1,294	(2,286)	20
Increase (Decrease) in Stockholders' Equity
Net earnings	1,209			1,089			120
Foreign currency translation adjustments, net of taxes of $0	2				2
Distributions to non-controlling interests	(108)						(108)
Share-based compensation	115		115
Dividends declared, $0.015 per share	(149)			(149)
Retirement plans:
Amortization of accumulated other comprehensive gain into net periodic benefit cost, net of taxes of $0	(20)				(20)
Balance, end of period (in shares) at Dec. 31, 2022		9,956,687
Balance, end of period at Dec. 31, 2022	$ 20,210	$ 5,062	$ 7,466	$ 8,660	$ 1,276	$ (2,286)	$ 32